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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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6
dbcon/joblist/batchprimitiveprocessor-jl.h
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@@ -252,6 +252,11 @@ class BatchPrimitiveProcessorJL
uuid = u;
}
void setMaxPmJoinResultCount(uint32_t count)
{
maxPmJoinResultCount = count;
}
private:
const size_t perColumnProjectWeight_ = 10;
const size_t perColumnFilteringWeight_ = 10;
@@ -374,6 +379,7 @@ class BatchPrimitiveProcessorJL
unsigned fJoinerChunkSize;
uint32_t dbRoot;
bool hasSmallOuterJoin;
uint32_t maxPmJoinResultCount = 1048576;
uint32_t _priority;