-
Notifications
You must be signed in to change notification settings - Fork 14
/
Copy pathg-database-application-interfaces.html
1183 lines (1126 loc) · 106 KB
/
g-database-application-interfaces.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<!-- Always force latest IE rendering engine or request Chrome Frame -->
<meta content="IE=edge,chrome=1" http-equiv="X-UA-Compatible">
<link href='https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,300italic,400italic,400,600' rel='stylesheet' type='text/css'>
<!-- Use title if it's in the page YAML frontmatter -->
<title>
HAWQ Database Drivers and APIs |
Apache HAWQ (Incubating) Docs
</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="/stylesheets/all.css" rel="stylesheet" media="screen, print" />
<link href="/stylesheets/print.css" rel="stylesheet" media="print" />
<link href='/images/favicon.ico' rel='shortcut icon'>
<script src="/javascripts/all.js"></script>
</head>
<body class="docs docs_userguide docs_userguide_2_2_0_0-incubating docs_userguide_2_2_0_0-incubating_clientaccess docs_userguide_2_2_0_0-incubating_clientaccess_g-database-application-interfaces has-subnav">
<div class="viewport">
<div class='wrap'>
<script type="text/javascript">
document.domain = "";
</script>
<header class="header header-layout">
<h1 class="logo">
<a href="/">Apache HAWQ® (incubating) Documentation</a>
</h1>
<div class="header-links js-bar-links">
<div class="btn-menu" data-behavior="MenuMobile"></div>
<div class="header-item"><a href="http://hawq.incubator.apache.org/">Back to Apache HAWQ Page</a></div>
<div class="header-item">
<a href="https://issues.apache.org/jira/browse/HAWQ" target="_blank">Issues</a>
</div>
</div>
</header>
<div class="container">
<!--googleoff: index-->
<div id="sub-nav" class="js-sidenav nav-container" role="navigation">
<a class="sidenav-title" data-behavior="SubMenuMobile"> Doc Index</a>
<div class="nav-content">
<ul>
<li>
Apache HAWQ (incubating)
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/requirements/system-requirements.html">System Requirements</a>
</li>
<li class="has_submenu">
<span>
HAWQ System Overview
</span>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/HAWQOverview.html">What is HAWQ?</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/HAWQArchitecture.html">HAWQ Architecture</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/TableDistributionStorage.html">Table Distribution and Storage</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/ElasticSegments.html">Elastic Query Execution Runtime</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/ResourceManagement.html">Resource Management</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/HDFSCatalogCache.html">HDFS Catalog Cache</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/ManagementTools.html">Management Tools</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/overview/RedundancyFailover.html">High Availability, Redundancy and Fault Tolerance</a>
</li>
</ul>
</li>
<li class="has_submenu">
<a href="/docs/userguide/2.2.0.0-incubating/tutorial/overview.html">Getting Started with HAWQ Tutorial</a>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/tutorial/gettingstarted/introhawqenv.html">Lesson 1 - Runtime Environment</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/tutorial/gettingstarted/basichawqadmin.html">Lesson 2 - Cluster Administration</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/tutorial/gettingstarted/basicdbadmin.html">Lesson 3 - Database Administration</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/tutorial/gettingstarted/dataandscripts.html">Lesson 4 - Sample Data Set and HAWQ Schemas</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/tutorial/gettingstarted/introhawqtbls.html">Lesson 5 - HAWQ Tables</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/tutorial/gettingstarted/intropxfhdfs.html">Lesson 6 - HAWQ Extension Framework (PXF)</a>
</li>
</ul>
</li>
<li class="has_submenu">
<span>
Running a HAWQ Cluster
</span>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/RunningHAWQ.html">Overview</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/setuphawqopenv.html">Introducing the HAWQ Operating Environment</a>
</li>
<li class="has_submenu">
<a href="/docs/userguide/2.2.0.0-incubating/admin/ambari-admin.html">Managing HAWQ Using Ambari</a>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/ambari-rest-api.html">Using the Ambari REST API</a>
</li>
</ul>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/startstop.html">Starting and Stopping HAWQ</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/ClusterExpansion.html">Expanding a Cluster</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/ClusterShrink.html">Removing a Node</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/BackingUpandRestoringHAWQDatabases.html">Backing Up and Restoring HAWQ</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/HighAvailability.html">High Availability in HAWQ</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/MasterMirroring.html">Master Mirroring</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html">HAWQ Filespaces and High Availability Enabled HDFS</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/FaultTolerance.html">Understanding the Fault Tolerance Service</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/RecommendedMonitoringTasks.html">Recommended Monitoring and Maintenance Tasks</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/maintain.html">Routine System Maintenance Tasks</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/monitor.html">Monitoring a HAWQ System</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/admin/logfiles.html">HAWQ Administrative Log Files</a>
</li>
</ul>
</li>
<li class="has_submenu">
<span>
Managing Resources
</span>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/HAWQResourceManagement.html">How HAWQ Manages Resources</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/best-practices.html">Best Practices for Configuring Resource Management</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/ConfigureResourceManagement.html">Configuring Resource Management</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/YARNIntegration.html">Integrating YARN with HAWQ</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/ResourceQueues.html">Working with Hierarchical Resource Queues</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/ResourceManagerStatus.html">Analyzing Resource Manager Status</a>
</li>
</ul>
</li>
<li class="has_submenu">
<span>
Managing Client Access
</span>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/client_auth.html">Configuring Client Authentication</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/ldap.html">Using LDAP Authentication with TLS/SSL</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/kerberos.html">Using Kerberos Authentication</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/disable-kerberos.html">Disabling Kerberos Security</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/hawq-access-checks.html">Overview of HAWQ Authorization</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/roles_privs.html">Using HAWQ Native Authorization</a>
</li>
<li class="has_submenu">
<span>
Using Ranger for Authorization
</span>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ranger/ranger-overview.html">Overview of Ranger Policy Management</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ranger/ranger-integration-config.html">Configuring HAWQ to use Ranger Policy Management</a>
</li>
<li class="has_submenu">
<a href="/docs/userguide/2.2.0.0-incubating/ranger/ranger-policy-creation.html">Creating HAWQ Authorization Policies in Ranger</a>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ranger/ranger-resource-perms.html">HAWQ Resources and Permissions</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ranger/ranger-sqlcmd-summary.html">SQL Command Permissions Summary</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ranger/madlib-ranger.html">Using MADLib with Ranger Authorization</a>
</li>
</ul>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ranger/ranger-auditing.html">Auditing Authorization Events</a>
</li>
</ul>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-establishing-a-database-session.html">Establishing a Database Session</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-supported-client-applications.html">Supported Client Applications</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-hawq-database-client-applications.html">HAWQ Client Applications</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-connecting-with-psql.html">Connecting with psql</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-database-application-interfaces.html">HAWQ Database Drivers and APIs</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-troubleshooting-connection-problems.html">Troubleshooting Connection Problems</a>
</li>
</ul>
</li>
<li class="has_submenu">
<span>
Defining Database Objects
</span>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl.html">Overview</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-database.html">Creating and Managing Databases</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-tablespace.html">Creating and Managing Tablespaces</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-schema.html">Creating and Managing Schemas</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-table.html">Creating and Managing Tables</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/locate-table-hdfs.html"> Identifying HAWQ Table HDFS Files</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-storage.html">Choosing the Table Storage Model</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-partition.html">Partitioning Large Tables</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-view.html">Creating and Managing Views</a>
</li>
</ul>
</li>
<li class="has_submenu">
<span>
Using Procedural Languages
</span>
<ul>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/plext/UsingProceduralLanguages.html">Using Languages in HAWQ</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/plext/builtin_langs.html">Using HAWQ Built-In Languages</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/plext/using_pljava.html">Using PL/Java</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/plext/using_plpgsql.html">Using PL/pgSQL</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/plext/using_plpython.html">Using PL/Python</a>
</li>
<li>
<a href="/docs/userguide/2.2.0.0-incubating/plext/using_plr.html">Using PL/R</a>
</li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/dml.html">Managing Data with HAWQ</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/BasicDataOperations.html">Basic Data Operations</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/about_statistics.html">About Database Statistics</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/ConcurrencyControl.html">Concurrency Control</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/Transactions.html">Working with Transactions</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-and-unloading-data.html">Loading and Unloading Data</a>
<ul>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-working-with-file-based-ext-tables.html">Working with File-Based External Tables</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-external-tables.html">Accessing File-Based External Tables</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-gpfdist-protocol.html">gpfdist Protocol</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-gpfdists-protocol.html">gpfdists Protocol</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-handling-errors-ext-table-data.html">Handling Errors in External Table Data</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html">Using the HAWQ File Server (gpfdist)</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-about-gpfdist-setup-and-performance.html">About gpfdist Setup and Performance</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-controlling-segment-parallelism.html">Controlling Segment Parallelism</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-installing-gpfdist.html">Installing gpfdist</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-starting-and-stopping-gpfdist.html">Starting and Stopping gpfdist</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-troubleshooting-gpfdist.html">Troubleshooting gpfdist</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-creating-and-using-web-external-tables.html">Creating and Using Web External Tables</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-command-based-web-external-tables.html">Command-based Web External Tables</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-url-based-web-external-tables.html">URL-based Web External Tables</a></li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-data-using-an-external-table.html">Loading Data Using an External Table</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html">Loading and Writing Non-HDFS Custom Data</a>
<ul>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-using-a-custom-format.html">Using a Custom Format</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-importing-and-exporting-fixed-width-data.html">Importing and Exporting Fixed Width Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-examples-read-fixed-width-data.html">Examples - Read Fixed-Width Data</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/creating-external-tables-examples.html">Creating External Tables - Examples</a>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-handling-load-errors.html">Handling Load Errors</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html">Define an External Table with Single Row Error Isolation</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html">Capture Row Formatting Errors and Declare a Reject Limit </a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html">Identifying Invalid CSV Files in Error Table Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-moving-data-between-tables.html">Moving Data between Tables</a></li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-register_files.html">Registering Files into HAWQ Internal Tables</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-data-with-hawqload.html">Loading Data with hawq load</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-data-with-copy.html">Loading Data with COPY</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html">Running COPY in Single Row Error Isolation Mode</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-optimizing-data-load-and-query-performance.html">Optimizing Data Load and Query Performance</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-unloading-data-from-hawq-database.html">Unloading Data from HAWQ</a>
<ul>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-defining-a-file-based-writable-external-table.html">Defining a File-Based Writable External Table</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-hawq-file-server-gpfdist.html">Example - HAWQ file server (gpfdist)</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html">Defining a Command-Based Writable External Web Table</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html">Disabling EXECUTE for Web or Writable External Tables</a></li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-unloading-data-using-a-writable-external-table.html">Unloading Data Using a Writable External Table</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-unloading-data-using-copy.html">Unloading Data Using COPY</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transforming-xml-data.html">Transforming XML Data</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-determine-the-transformation-schema.html">Determine the Transformation Schema</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-write-a-transform.html">Write a Transform</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-write-the-gpfdist-configuration.html">Write the gpfdist Configuration</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-load-the-data.html">Load the Data</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transfer-and-store-the-data.html">Transfer and Store the Data</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transforming-with-gpload.html">Transforming with GPLOAD</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transforming-with-insert-into-select-from.html">Transforming with INSERT INTO SELECT FROM</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-configuration-file-format.html">Configuration File Format</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-xml-transformation-examples.html">XML Transformation Examples</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html">Command-based Web External Tables</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html">Example using IRS MeF XML Files (In demo Directory)</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-witsml-files-in-demo-directory.html">Example using WITSML™ Files (In demo Directory)</a></li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-formatting-data-files.html">Formatting Data Files</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-formatting-rows.html">Formatting Rows</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-formatting-columns.html">Formatting Columns</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-representing-null-values.html">Representing NULL Values</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-escaping.html">Escaping</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-escaping-in-text-formatted-files.html">Escaping in Text Formatted Files</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-escaping-in-csv-formatted-files.html">Escaping in CSV Formatted Files</a></li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-character-encoding.html">Character Encoding</a></li>
</ul>
</li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/datamgmt/HAWQInputFormatforMapReduce.html">HAWQ InputFormat for MapReduce</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/pxf/HawqExtensionFrameworkPXF.html">Using PXF with Unmanaged Data</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/InstallPXFPlugins.html">Installing PXF Plugins</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/ConfigurePXF.html">Configuring PXF</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/HDFSFileDataPXF.html">Accessing HDFS File Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/HivePXF.html">Accessing Hive Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/HBasePXF.html">Accessing HBase Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/JsonPXF.html">Accessing JSON Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data to HDFS</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles to Read and Write Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF External Tables and API</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting PXF</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/query/query.html">Querying Data</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/HAWQQueryProcessing.html">About HAWQ Query Processing</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-optimizer.html">About GPORCA</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-overview.html">Overview of GPORCA</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-features.html">GPORCA Features and Enhancements</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-enable.html">Enabling GPORCA</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-notes.html">Considerations when Using GPORCA</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-fallback.html">Determining The Query Optimizer In Use</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-changed.html">Changed Behavior with GPORCA</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-limitations.html">GPORCA Limitations</a></li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/defining-queries.html">Defining Queries</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/functions-operators.html">Using Functions and Operators</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/query-performance.html">Query Performance</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/query/query-profiling.html">Query Profiling</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/bestpractices/HAWQBestPracticesOverview.html">Best Practices</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/bestpractices/config_hawq_bestpractices.html">Configuring HAWQ</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/bestpractices/operating_hawq_bestpractices.html">Operating HAWQ</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/bestpractices/secure_bestpractices.html">Securing HAWQ</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/bestpractices/managing_resources_bestpractices.html">Managing Resources</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/bestpractices/managing_data_bestpractices.html">Managing Data</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/bestpractices/querying_data_bestpractices.html">Querying Data</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html">Troubleshooting</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_dwd_rnx_15">Query Performance Issues</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_vm5_znx_15">Rejection of Query Resource Requests</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_qq4_rkl_wv">Queries Cancelled Due to High VMEM Usage</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_hlj_zxx_15">Segments Do Not Appear in gp_segment_configuration</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_mdz_q2y_15">Handling Segment Resource Fragmentation</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/hawq-reference.html">HAWQ Reference</a>
<ul>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/SQLCommandReference.html">SQL Commands</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER AGGREGATE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER CONVERSION</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER DATABASE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER FUNCTION</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER OPERATOR</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-OPERATOR-CLASS.html">ALTER OPERATOR CLASS</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-RESOURCE-QUEUE.html">ALTER RESOURCE QUEUE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-ROLE.html">ALTER ROLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-SEQUENCE.html">ALTER SEQUENCE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-TABLE.html">ALTER TABLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-TABLESPACE.html">ALTER TABLESPACE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-TYPE.html">ALTER TYPE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-USER.html">ALTER USER</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ANALYZE.html">ANALYZE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/BEGIN.html">BEGIN</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CHECKPOINT.html">CHECKPOINT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CLOSE.html">CLOSE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE AGGREGATE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE CAST</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE CONVERSION</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE DATABASE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE EXTERNAL TABLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE FUNCTION</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-GROUP.html">CREATE GROUP</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-LANGUAGE.html">CREATE LANGUAGE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-OPERATOR.html">CREATE OPERATOR</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-OPERATOR-CLASS.html">CREATE OPERATOR CLASS</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-RESOURCE-QUEUE.html">CREATE RESOURCE QUEUE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-ROLE.html">CREATE ROLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-SCHEMA.html">CREATE SCHEMA</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-SEQUENCE.html">CREATE SEQUENCE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TABLE.html">CREATE TABLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TABLE-AS.html">CREATE TABLE AS</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TABLESPACE.html">CREATE TABLESPACE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TYPE.html">CREATE TYPE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-USER.html">CREATE USER</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-VIEW.html">CREATE VIEW</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP AGGREGATE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-CAST.html">DROP CAST</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP CONVERSION</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP DATABASE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP EXTERNAL TABLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP FILESPACE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-FUNCTION.html">DROP FUNCTION</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-GROUP.html">DROP GROUP</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-LANGUAGE.html">DROP LANGUAGE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-OPERATOR.html">DROP OPERATOR</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-OPERATOR-CLASS.html">DROP OPERATOR CLASS</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-OWNED.html">DROP OWNED</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-RESOURCE-QUEUE.html">DROP RESOURCE QUEUE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-ROLE.html">DROP ROLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-SCHEMA.html">DROP SCHEMA</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-SEQUENCE.html">DROP SEQUENCE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-TABLE.html">DROP TABLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-TABLESPACE.html">DROP TABLESPACE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-TYPE.html">DROP TYPE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-USER.html">DROP USER</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-VIEW.html">DROP VIEW</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/END.html">END</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/EXECUTE.html">EXECUTE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/EXPLAIN.html">EXPLAIN</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/FETCH.html">FETCH</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/GRANT.html">GRANT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/INSERT.html">INSERT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/PREPARE.html">PREPARE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/REASSIGN-OWNED.html">REASSIGN OWNED</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/RELEASE-SAVEPOINT.html">RELEASE SAVEPOINT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/RESET.html">RESET</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/REVOKE.html">REVOKE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ROLLBACK.html">ROLLBACK</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/ROLLBACK-TO-SAVEPOINT.html">ROLLBACK TO SAVEPOINT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/SAVEPOINT.html">SAVEPOINT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/SELECT.html">SELECT</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/SELECT-INTO.html">SELECT INTO</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/SET.html">SET</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/SET-ROLE.html">SET ROLE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/SET-SESSION-AUTHORIZATION.html">SET SESSION AUTHORIZATION</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/SHOW.html">SHOW</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/TRUNCATE.html">TRUNCATE</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/sql/VACUUM.html">VACUUM</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/HAWQSiteConfig.html">Server Configuration Parameter Reference</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_config.html">About Server Configuration Parameters</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html">Configuration Parameter Categories</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic_hfd_1tl_zp">Append-Only Table Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic39">Client Connection Default Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic12">Connection and Authentication Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic47">Database and Tablespace/Filespace Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic29">Error Reporting and Logging Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic45">External Table Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic57">GPORCA Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic49">HAWQ Array Configuration Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic_pxfparam">HAWQ Extension Framework (PXF) Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic56">HAWQ PL/Java Extension Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#hawq_resource_management">HAWQ Resource Management Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic43">Lock Management Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic48">Past PostgreSQL Version Compatibility Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic21">Query Tuning Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#ranger_related">Ranger Configuration Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#statistics_collection">Statistics Collection Parameters</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic15">System Resource Consumption Parameters</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html">Configuration Parameters</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#add_missing_from">add_missing_from</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#application_name">application_name</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#array_nulls">array_nulls</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#authentication_timeout">authentication_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#backslash_quote">backslash_quote</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#block_size">block_size</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#bonjour_name">bonjour_name</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#check_function_bodies">check_function_bodies</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#client_encoding">client_encoding</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#client_min_messages">client_min_messages</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#cpu_index_tuple_cost">cpu_index_tuple_cost</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#cpu_operator_cost">cpu_operator_cost</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#cpu_tuple_cost">cpu_tuple_cost</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#cursor_tuple_fraction">cursor_tuple_fraction</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#custom_variable_classes">custom_variable_classes</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#DateStyle">DateStyle</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#db_user_namespace">db_user_namespace</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#deadlock_timeout">deadlock_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#debug_assertions">debug_assertions</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#debug_pretty_print">debug_pretty_print</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_parse">debug_print_parse</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_plan">debug_print_plan</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_prelim_plan">debug_print_prelim_plan</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_rewritten">debug_print_rewritten</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_slice_table">debug_print_slice_table</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#topic_fqj_4fd_kv">default_hash_table_bucket_number</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#default_statistics_target">default_statistics_target</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#default_tablespace">default_tablespace</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#default_transaction_isolation">default_transaction_isolation</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#default_transaction_read_only">default_transaction_read_only</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#dynamic_library_path">dynamic_library_path</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#effective_cache_size">effective_cache_size</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_bitmapscan">enable_bitmapscan</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_groupagg">enable_groupagg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_hashagg">enable_hashagg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_hashjoin">enable_hashjoin</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_indexscan">enable_indexscan</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_mergejoin">enable_mergejoin</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_nestloop">enable_nestloop</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_seqscan">enable_seqscan</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_sort">enable_sort</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#enable_tidscan">enable_tidscan</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#escape_string_warning">escape_string_warning</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#explain_pretty_print">explain_pretty_print</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#extra_float_digits">extra_float_digits</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#from_collapse_limit">from_collapse_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_adjust_selectivity_for_outerjoins">gp_adjust_selectivity_for_outerjoins</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_analyze_relative_error">gp_analyze_relative_error</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_autostats_mode">gp_autostats_mode</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#topic_imj_zhf_gw">gp_autostats_on_change_threshhold</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_backup_directIO">gp_backup_directIO</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_backup_directIO_read_chunk_mb">gp_backup_directIO_read_chunk_mb</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_cached_segworkers_threshold">gp_cached_segworkers_threshold</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_command_count">gp_command_count</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_connections_per_thread">gp_connections_per_thread</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_debug_linger">gp_debug_linger</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_dynamic_partition_pruning">gp_dynamic_partition_pruning</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_agg_distinct">gp_enable_agg_distinct</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_agg_distinct_pruning">gp_enable_agg_distinct_pruning</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_direct_dispatch">gp_enable_direct_dispatch</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_fallback_plan">gp_enable_fallback_plan</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_fast_sri">gp_enable_fast_sri</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_groupext_distinct_gather">gp_enable_groupext_distinct_gather</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_groupext_distinct_pruning">gp_enable_groupext_distinct_pruning</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_multiphase_agg">gp_enable_multiphase_agg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_predicate_propagation">gp_enable_predicate_propagation</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_preunique">gp_enable_preunique</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_sequential_window_plans">gp_enable_sequential_window_plans</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_sort_distinct">gp_enable_sort_distinct</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_sort_limit">gp_enable_sort_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_external_enable_exec">gp_external_enable_exec</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_external_grant_privileges">gp_external_grant_privileges</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_external_max_segs">gp_external_max_segs</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_filerep_tcp_keepalives_count">gp_filerep_tcp_keepalives_count</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_filerep_tcp_keepalives_idle">gp_filerep_tcp_keepalives_idle</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_filerep_tcp_keepalives_interval">gp_filerep_tcp_keepalives_interval</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_hashjoin_tuples_per_bucket">gp_hashjoin_tuples_per_bucket</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_idf_deduplicate">gp_idf_deduplicate</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_cache_future_packets">gp_interconnect_cache_future_packets</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_default_rtt">gp_interconnect_default_rtt</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_fc_method">gp_interconnect_fc_method</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_hash_multiplier">gp_interconnect_hash_multiplier</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_min_retries_before_timeout">gp_interconnect_min_retries_before_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_min_rto">gp_interconnect_min_rto</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_queue_depth">gp_interconnect_queue_depth</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_setup_timeout">gp_interconnect_setup_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_snd_queue_depth">gp_interconnect_snd_queue_depth</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_timer_checking_period">gp_interconnect_timer_checking_period</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_timer_period">gp_interconnect_timer_period</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_interconnect_type">gp_interconnect_type</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_log_format">gp_log_format</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_max_csv_line_length">gp_max_csv_line_length</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_max_databases">gp_max_databases</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_max_filespaces">gp_max_filespaces</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_max_packet_size">gp_max_packet_size</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_max_plan_size">gp_max_plan_size</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_max_tablespaces">gp_max_tablespaces</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_motion_cost_per_row">gp_motion_cost_per_row</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_reject_percent_threshold">gp_reject_percent_threshold</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_reraise_signal">gp_reraise_signal</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_role">gp_role</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_safefswritesize">gp_safefswritesize</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_segment_connect_timeout">gp_segment_connect_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_segments_for_planner">gp_segments_for_planner</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_session_id">gp_session_id</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_set_proc_affinity">gp_set_proc_affinity</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_set_read_only">gp_set_read_only</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_statistics_pullup_from_child_partition">gp_statistics_pullup_from_child_partition</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_statistics_use_fkeys">gp_statistics_use_fkeys</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_vmem_idle_resource_timeout">gp_vmem_idle_resource_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_vmem_protect_segworker_cache_limit">gp_vmem_protect_segworker_cache_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_workfile_checksumming">gp_workfile_checksumming</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_workfile_compress_algorithm">gp_workfile_compress_algorithm</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_workfile_limit_files_per_query">gp_workfile_limit_files_per_query</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_workfile_limit_per_query">gp_workfile_limit_per_query</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#gp_workfile_limit_per_segment">gp_workfile_limit_per_segment</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_acl_type">hawq_acl_type</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_dfs_url">hawq_dfs_url</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_global_rm_type">hawq_global_rm_type</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_master_address_host">hawq_master_address_host</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_master_address_port">hawq_master_address_port</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_master_directory">hawq_master_directory</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_master_temp_directory">hawq_master_temp_directory</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_re_memory_overcommit_max">hawq_re_memory_overcommit_max</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_cluster_report">hawq_rm_cluster_report_period</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_force_alterqueue_cancel_queued_request">hawq_rm_force_alterqueue_cancel_queued_request</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_master_port">hawq_rm_master_port</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_memory_limit_perseg">hawq_rm_memory_limit_perseg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_min_resource_perseg">hawq_rm_min_resource_perseg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_nresqueue_limit">hawq_rm_nresqueue_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_nslice_perseg_limit">hawq_rm_nslice_perseg_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_nvcore_limit_perseg">hawq_rm_nvcore_limit_perseg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_nvseg_perquery_limit">hawq_rm_nvseg_perquery_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_nvseg_perquery_perseg_limit">hawq_rm_nvseg_perquery_perseg_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_nvseg_variance_amon_seg_limit">hawq_rm_nvseg_variance_amon_seg_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_rejectrequest_nseg_limit">hawq_rm_rejectrequest_nseg_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_resource_idle_timeout">hawq_rm_resource_idle_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_return_percent_on_overcommit">hawq_rm_return_percent_on_overcommit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_segment_heartbeat_interval">hawq_rm_segment_heartbeat_interval</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_segment_port">hawq_rm_segment_port</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_stmt_nvseg">hawq_rm_stmt_nvseg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_stmt_vseg_memory">hawq_rm_stmt_vseg_memory</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_tolerate_nseg_limit">hawq_rm_tolerate_nseg_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_yarn_address">hawq_rm_yarn_address</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_yarn_app_name">hawq_rm_yarn_app_name</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_yarn_queue_name">hawq_rm_yarn_queue_name</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rm_yarn_scheduler_address">hawq_rm_yarn_scheduler_address</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_rps_address_port">hawq_rps_address_port</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_segment_address_port">hawq_segment_address_port</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_segment_directory">hawq_segment_directory</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#hawq_segment_temp_directory">hawq_segment_temp_directory</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#integer_datetimes">integer_datetimes</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#IntervalStyle">IntervalStyle</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#join_collapse_limit">join_collapse_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#krb_caseins_users">krb_caseins_users</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#krb_server_keyfile">krb_server_keyfile</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#krb_srvname">krb_srvname</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#lc_collate">lc_collate</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#lc_ctype">lc_ctype</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#lc_messages">lc_messages</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#lc_monetary">lc_monetary</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#lc_numeric">lc_numeric</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#lc_time">lc_time</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#listen_addresses">listen_addresses</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#local_preload_libraries">local_preload_libraries</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_autostats">log_autostats</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_connections">log_connections</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_disconnections">log_disconnections</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_dispatch_stats">log_dispatch_stats</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_duration">log_duration</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_error_verbosity">log_error_verbosity</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_executor_stats">log_executor_stats</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_hostname">log_hostname</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_min_duration_statement">log_min_duration_statement</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_min_error_statement">log_min_error_statement</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_min_messages">log_min_messages</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_parser_stats">log_parser_stats</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_planner_stats">log_planner_stats</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_rotation_age">log_rotation_age</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_rotation_size">log_rotation_size</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_statement">log_statement</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_statement_stats">log_statement_stats</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_timezone">log_timezone</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#log_truncate_on_rotation">log_truncate_on_rotation</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_appendonly_tables">max_appendonly_tables</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_connections">max_connections</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_files_per_process">max_files_per_process</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_fsm_pages">max_fsm_pages</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_fsm_relations">max_fsm_relations</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_function_args">max_function_args</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_identifier_length">max_identifier_length</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_index_keys">max_index_keys</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_locks_per_transaction">max_locks_per_transaction</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_prepared_transactions">max_prepared_transactions</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#max_stack_depth">max_stack_depth</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#optimizer">optimizer</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#optimizer_analyze_root_partition">optimizer_analyze_root_partition</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#optimizer_minidump">optimizer_minidump</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#optimizer_parts_to_force_sort_on_insert">optimizer_parts_to_force_sort_on_insert</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#optimizer_prefer_scalar_dqa_multistage_agg">optimizer_prefer_scalar_dqa_multistage_agg</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#password_encryption">password_encryption</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pgstat_track_activity_query_size">pgstat_track_activity_query_size</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pljava_classpath">pljava_classpath</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pljava_statement_cache_size">pljava_statement_cache_size</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pljava_release_lingering_savepoints">pljava_release_lingering_savepoints</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pljava_vmoptions">pljava_vmoptions</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#port">port</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pxf_enable_filter_pushdown">pxf_enable_filter_pushdown</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pxf_enable_stat_collection">pxf_enable_stat_collection</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pxf_remote_service_login">pxf_remote_service_login</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pxf_remote_service_secret">pxf_remote_service_secret</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pxf_service_address">pxf_service_address</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pxf_service_port">pxf_service_port</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#pxf_stat_max_fragments">pxf_stat_max_fragments</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#random_page_cost">random_page_cost</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#regex_flavor">regex_flavor</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#runaway_detector_activation_percent">runaway_detector_activation_percent</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#search_path">search_path</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#seg_max_connections">seg_max_connections</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#seq_page_cost">seq_page_cost</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#server_encoding">server_encoding</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#server_version">server_version</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#server_version_num">server_version_num</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#shared_buffers">shared_buffers</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#shared_preload_libraries">shared_preload_libraries</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#ssl">ssl</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#ssl_ciphers">ssl_ciphers</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#standard_conforming_strings">standard_conforming_strings</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#statement_timeout">statement_timeout</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#superuser_reserved_connections">superuser_reserved_connections</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#tcp_keepalives_count">tcp_keepalives_count</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#tcp_keepalives_idle">tcp_keepalives_idle</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#tcp_keepalives_interval">tcp_keepalives_interval</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#temp_buffers">temp_buffers</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#TimeZone">TimeZone</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#timezone_abbreviations">timezone_abbreviations</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#track_activities">track_activities</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#track_counts">track_counts</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#transaction_isolation">transaction_isolation</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#transaction_read_only">transaction_read_only</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#transform_null_equals">transform_null_equals</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#unix_socket_directory">unix_socket_directory</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#unix_socket_group">unix_socket_group</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#unix_socket_permissions">unix_socket_permissions</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#update_process_title">update_process_title</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#vacuum_cost_delay">vacuum_cost_delay</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#vacuum_cost_limit">vacuum_cost_limit</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#vacuum_cost_page_dirty">vacuum_cost_page_dirty</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#vacuum_cost_page_miss">vacuum_cost_page_miss</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#vacuum_freeze_min_age">vacuum_freeze_min_age</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html#xid_stop_limit">xid_stop_limit</a></li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/HAWQSampleSiteConfig.html">Sample hawq-site.xml Configuration File</a></li>
</ul>
</li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/HDFSConfigurationParameterReference.html">HDFS Configuration Reference</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/HAWQEnvironmentVariables.html">Environment Variables</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/CharacterSetSupportReference.html">Character Set Support Reference</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/HAWQDataTypes.html">Data Types</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/catalog_ref.html">System Catalog Reference</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/catalog_ref-tables.html">System Tables</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/catalog_ref-views.html">System Views</a></li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/catalog_ref-html.html">System Catalogs Definitions</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_configuration_history.html">gp_configuration_history</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_distribution_policy.html">gp_distribution_policy</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_global_sequence.html">gp_global_sequence</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_master_mirroring.html">gp_master_mirroring</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_persistent_database_node.html">gp_persistent_database_node</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_persistent_filespace_node.html">gp_persistent_filespace_node</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_persistent_relation_node.html">gp_persistent_relation_node</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_persistent_relfile_node.html">gp_persistent_relfile_node</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_persistent_tablespace_node.html">gp_persistent_tablespace_node</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_relfile_node.html">gp_relfile_node</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_segment_configuration.html">gp_segment_configuration</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/gp_version_at_initdb.html">gp_version_at_initdb</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_aggregate.html">pg_aggregate</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_am.html">pg_am</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_amop.html">pg_amop</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_amproc.html">pg_amproc</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_appendonly.html">pg_appendonly</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_attrdef.html">pg_attrdef</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_attribute.html">pg_attribute</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_attribute_encoding.html">pg_attribute_encoding</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_auth_members.html">pg_auth_members</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_authid.html">pg_authid</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_cast.html">pg_cast</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_class.html">pg_class</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_compression.html">pg_compression</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_constraint.html">pg_constraint</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_conversion.html">pg_conversion</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_database.html">pg_database</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_depend.html">pg_depend</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_description.html">pg_description</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_exttable.html">pg_exttable</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_filespace.html">pg_filespace</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_filespace_entry.html">pg_filespace_entry</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_index.html">pg_index</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_inherits.html">pg_inherits</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_language.html">pg_language</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_largeobject.html">pg_largeobject</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_listener.html">pg_listener</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_locks.html">pg_locks</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_namespace.html">pg_namespace</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_opclass.html">pg_opclass</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_operator.html">pg_operator</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_partition.html">pg_partition</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_partition_columns.html">pg_partition_columns</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_partition_encoding.html">pg_partition_encoding</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_partition_rule.html">pg_partition_rule</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_partition_templates.html">pg_partition_templates</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_partitions.html">pg_partitions</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_pltemplate.html">pg_pltemplate</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_proc.html">pg_proc</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_resqueue.html">pg_resqueue</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_resqueue_status.html">pg_resqueue_status</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_rewrite.html">pg_rewrite</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_roles.html">pg_roles</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_shdepend.html">pg_shdepend</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_shdescription.html">pg_shdescription</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_stat_activity.html">pg_stat_activity</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_stat_last_operation.html">pg_stat_last_operation</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_stat_last_shoperation.html">pg_stat_last_shoperation</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_stat_operations.html">pg_stat_operations</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_stat_partition_operations.html">pg_stat_partition_operations</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_statistic.html">pg_statistic</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_stats.html">pg_stats</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_tablespace.html">pg_tablespace</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_trigger.html">pg_trigger</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_type.html">pg_type</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_type_encoding.html">pg_type_encoding</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/catalog/pg_window.html">pg_window</a></li>
</ul>
</li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/toolkit/hawq_toolkit.html">The hawq_toolkit Administrative Schema</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/toolkit/hawq_toolkit.html#topic2">Checking for Tables that Need Routine Maintenance</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/toolkit/hawq_toolkit.html#topic16">Viewing HAWQ Server Log Files</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/toolkit/hawq_toolkit.html#topic38">Checking Database Object Sizes and Disk Space</a></li>
</ul>
</li>
<li class="has_submenu"><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/management_tools.html">HAWQ Management Tools Reference</a>
<ul>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/analyzedb.html">analyzedb</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/createdb.html">createdb</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/createuser.html">createuser</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/dropdb.html">dropdb</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/dropuser.html">dropuser</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/gpfdist.html">gpfdist</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/gplogfilter.html">gplogfilter</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqactivate.html">hawq activate</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqcheck.html">hawq check</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqcheckperf.html">hawq checkperf</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqconfig.html">hawq config</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqextract.html">hawq extract</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqfilespace.html">hawq filespace</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqinit.html">hawq init</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqload.html">hawq load</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqregister.html">hawq register</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqrestart.html">hawq restart</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqscp.html">hawq scp</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqssh.html">hawq ssh</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqssh-exkeys.html">hawq ssh-exkeys</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqstart.html">hawq start</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqstate.html">hawq state</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/admin_utilities/hawqstop.html">hawq stop</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/pg_dump.html">pg_dump</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/pg_dumpall.html">pg_dumpall</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/pg_restore.html">pg_restore</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/psql.html">psql</a></li>
<li><a href="/docs/userguide/2.2.0.0-incubating/reference/cli/client_utilities/vacuumdb.html">vacuumdb</a></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<!--end of sub-nav-->
<!--googleon: index-->
<main class="content content-layout" id="js-content" role="main">
<a id="top"></a>