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Copy pathcompress_bloom_dml.out
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244 lines (227 loc) · 9.39 KB
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-- This file and its contents are licensed under the Timescale License.
-- Please see the included NOTICE for copyright information and
-- LICENSE-TIMESCALE for a copy of the license.
create table dml_test(
ts int,
o bigint,
boo bigint,
foo bigint,
sby bigint);
select create_hypertable('dml_test', 'ts', create_default_indexes=>false);
create_hypertable
-----------------------
(1,public,dml_test,t)
insert into dml_test select x, (30000-x), x%2000, x+100, x%5 from generate_series(1, 50000) x;
alter table dml_test set (
timescaledb.compress,
timescaledb.order_by='o',
timescaledb.segment_by='sby',
timescaledb.compress_index = 'bloom(foo, boo), bloom(boo)');
select count(compress_chunk(x)) from show_chunks('dml_test') x;
count
-------
1
vacuum analyze dml_test;
-- 2 filter clauses
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
select * from dml_test where foo = 1001 and boo = 1002;
--- QUERY PLAN ---
Custom Scan (ColumnarScan) on _hyper_1_1_chunk (actual rows=0.00 loops=1)
Vectorized Filter: ((foo = 1001) AND (boo = 1002))
-> Seq Scan on compress_hyper_2_2_chunk (actual rows=0.00 loops=1)
Filter: (_timescaledb_functions.bloom1_contains_any_hashes(regress-test-bloom_701f_boo_foo, TEST-HASHES::bigint[]) AND _timescaledb_functions.bloom1_contains_any_hashes(regress-test-bloom_boo, TEST-HASHES::bigint[]))
Rows Removed by Filter: 50
SET timescaledb.enable_dml_bloom_filter = off;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
UPDATE dml_test SET foo = foo+1 WHERE foo = 1001 AND boo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 50
-> Update on dml_test (actual rows=0.00 loops=1)
Update on _hyper_1_1_chunk dml_test_1
-> Result (actual rows=0.00 loops=1)
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: ((foo = 1001) AND (boo = 1002))
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = on;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
UPDATE dml_test SET foo = foo+1 WHERE foo = 1001 AND boo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Compressed batches filtered: 50
Batches checked by bloom: 50
Batches pruned by bloom: 50
-> Update on dml_test (actual rows=0.00 loops=1)
Update on _hyper_1_1_chunk dml_test_1
-> Result (actual rows=0.00 loops=1)
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: ((foo = 1001) AND (boo = 1002))
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = off;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
DELETE FROM dml_test WHERE foo = 1001 AND boo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 50
-> Delete on dml_test (actual rows=0.00 loops=1)
Delete on _hyper_1_1_chunk dml_test_1
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: ((foo = 1001) AND (boo = 1002))
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = on;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
DELETE FROM dml_test WHERE foo = 1001 AND boo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Compressed batches filtered: 50
Batches checked by bloom: 50
Batches pruned by bloom: 50
-> Delete on dml_test (actual rows=0.00 loops=1)
Delete on _hyper_1_1_chunk dml_test_1
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: ((foo = 1001) AND (boo = 1002))
ROLLBACK;
-- 1 filter clause
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
select * from dml_test where foo = 12;
--- QUERY PLAN ---
Custom Scan (ColumnarScan) on _hyper_1_1_chunk (actual rows=0.00 loops=1)
Vectorized Filter: (foo = 12)
Rows Removed by Filter: 50000
-> Seq Scan on compress_hyper_2_2_chunk (actual rows=50.00 loops=1)
SET timescaledb.enable_dml_bloom_filter = off;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
UPDATE dml_test SET foo = foo+1 WHERE foo = 12;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 50
-> Update on dml_test (actual rows=0.00 loops=1)
Update on _hyper_1_1_chunk dml_test_1
-> Result (actual rows=0.00 loops=1)
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: (foo = 12)
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = on;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
UPDATE dml_test SET foo = foo+1 WHERE foo = 12;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 50
-> Update on dml_test (actual rows=0.00 loops=1)
Update on _hyper_1_1_chunk dml_test_1
-> Result (actual rows=0.00 loops=1)
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: (foo = 12)
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = off;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
DELETE FROM dml_test WHERE foo = 12;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 50
-> Delete on dml_test (actual rows=0.00 loops=1)
Delete on _hyper_1_1_chunk dml_test_1
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: (foo = 12)
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = on;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
DELETE FROM dml_test WHERE foo = 12;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 50
-> Delete on dml_test (actual rows=0.00 loops=1)
Delete on _hyper_1_1_chunk dml_test_1
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=0.00 loops=1)
Filter: (foo = 12)
ROLLBACK;
-- 1 filter clause, real updates
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
select * from dml_test where foo = 1002;
--- QUERY PLAN ---
Custom Scan (ColumnarScan) on _hyper_1_1_chunk (actual rows=1.00 loops=1)
Vectorized Filter: (foo = 1002)
Rows Removed by Filter: 49999
-> Seq Scan on compress_hyper_2_2_chunk (actual rows=50.00 loops=1)
SET timescaledb.enable_dml_bloom_filter = off;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
UPDATE dml_test SET foo = foo+1 WHERE foo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 49
Batches decompressed: 1
Tuples decompressed: 1000
-> Update on dml_test (actual rows=0.00 loops=1)
Update on _hyper_1_1_chunk dml_test_1
-> Result (actual rows=1.00 loops=1)
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=1.00 loops=1)
Filter: (foo = 1002)
Rows Removed by Filter: 999
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = on;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
UPDATE dml_test SET foo = foo+1 WHERE foo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 49
Batches decompressed: 1
Tuples decompressed: 1000
-> Update on dml_test (actual rows=0.00 loops=1)
Update on _hyper_1_1_chunk dml_test_1
-> Result (actual rows=1.00 loops=1)
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=1.00 loops=1)
Filter: (foo = 1002)
Rows Removed by Filter: 999
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = off;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
DELETE FROM dml_test WHERE foo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 49
Batches decompressed: 1
Tuples decompressed: 1000
-> Delete on dml_test (actual rows=0.00 loops=1)
Delete on _hyper_1_1_chunk dml_test_1
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=1.00 loops=1)
Filter: (foo = 1002)
Rows Removed by Filter: 999
ROLLBACK;
SET timescaledb.enable_dml_bloom_filter = on;
BEGIN;
EXPLAIN (ANALYZE, BUFFERS OFF, COSTS OFF, TIMING OFF, SUMMARY OFF)
DELETE FROM dml_test WHERE foo = 1002;
--- QUERY PLAN ---
Custom Scan (ModifyHypertable) (actual rows=0.00 loops=1)
Batches scanned: 50
Batches filtered after decompression: 49
Batches decompressed: 1
Tuples decompressed: 1000
-> Delete on dml_test (actual rows=0.00 loops=1)
Delete on _hyper_1_1_chunk dml_test_1
-> Seq Scan on _hyper_1_1_chunk dml_test_1 (actual rows=1.00 loops=1)
Filter: (foo = 1002)
Rows Removed by Filter: 999
ROLLBACK;