Define worker plan rewrites in terms of events #2086

Job	Run time
tpcds-plans-test	5m 4s
tpch-plans-test	2m 0s
tpch-correctness-test (static)	6m 42s
tpch-correctness-test (adaptive)	6m 32s
clippy	1m 22s
tpcds-correctness-test (01, static)	6m 4s
build	1m 22s
format-check	56s
clickbench-plans-test	1m 35s
tpcds-correctness-test (09, static)	5m 55s
tpcds-correctness-test (06, adaptive)	5m 34s
tpcds-correctness-test (05, adaptive)	2m 33s
unit-test	3m 25s
tpcds-correctness-test (01, adaptive)	11m 40s
tpcds-correctness-test (04, static)	11m 40s
clickbench-correctness-test (adaptive)	11m 40s
clickbench-correctness-test (static)	11m 40s
tpcds-correctness-test (09, adaptive)	4m 58s
tpcds-correctness-test (10, static)	5m 11s
tpcds-correctness-test (07, adaptive)	11m 40s
tpcds-correctness-test (07, static)	11m 40s
tpcds-correctness-test (02, adaptive)	3m 57s
tpcds-correctness-test (06, static)	11m 40s
tpcds-correctness-test (08, adaptive)	11m 40s
tpcds-correctness-test (04, adaptive)	11m 40s
tpcds-correctness-test (10, adaptive)	11m 40s
tpcds-correctness-test (05, static)	11m 40s
tpcds-correctness-test (08, static)	5m 43s
tpcds-correctness-test (03, adaptive)	11m 40s
tpcds-correctness-test (03, static)	7m 16s
tpcds-correctness-test (02, static)	11m 40s
	3h 47m 49s

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