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MCOL-5522 Properly process pm join result count. (#2909)

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This patch:
1. Properly processes situation when pm join result count is exceeded.
2. Adds session variable 'columnstore_max_pm_join_result_count` to control the limit.
This commit is contained in:
Denis Khalikov
2023-08-04 16:55:45 +03:00
committed by GitHub
parent 4f580d109d
commit 896e8dd769
17 changed files with 144 additions and 60 deletions
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10
dbcon/execplan/calpontselectexecutionplan.h
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@ -708,6 +708,15 @@ class CalpontSelectExecutionPlan : public CalpontExecutionPlan
return fDJSForceRun;
}
void maxPmJoinResultCount(uint32_t value)
{
fMaxPmJoinResultCount = value;
}
uint32_t maxPmJoinResultCount()
{
return fMaxPmJoinResultCount;
}
void umMemLimit(uint64_t l)
{
fUMMemLimit = l;
@ -942,6 +951,7 @@ class CalpontSelectExecutionPlan : public CalpontExecutionPlan
uint64_t fDJSPartitionSize = 100 * 1024 * 1024;
uint32_t fDJSMaxPartitionTreeDepth = 8;
bool fDJSForceRun = false;
uint32_t fMaxPmJoinResultCount = 1048576;
int64_t fUMMemLimit = numeric_limits<int64_t>::max();
bool fIsDML = false;
long fTimeZone = 0;