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feat(rbo) parallel factor via session veriable

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This commit is contained in:
Leonid Fedorov
2025-08-22 02:05:21 +00:00
committed by drrtuy
parent 8c3a99699c
commit 67370721db
5 changed files with 30 additions and 9 deletions
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2
dbcon/mysql/ha_mcs_execplan.cpp
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@@ -7601,7 +7601,7 @@ int cs_get_select_plan(ha_columnstore_select_handler* handler, THD* thd, SCSEP&
derivedTableOptimization(&gwi, csep);
{
optimizer::RBOptimizerContext ctx(gwi, *thd, csep->traceOn());
optimizer::RBOptimizerContext ctx(gwi, *thd, csep->traceOn(), get_ces_optimization_parallel_factor(thd));
// TODO RBO can crash or fail leaving CSEP in an invalid state, so there must be a valid CSEP copy
// TBD There is a tradeoff b/w copy per rule and copy per optimizer run.
bool csepWasOptimized = optimizer::optimizeCSEP(*csep, ctx, get_unstable_optimizer(&ctx.thd));