database/mariadb-columnstore-engine
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fix(rbo,rules,QA): ExistsFilter::transform merges statistics to enable QA for EXISTS expressions.

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This commit is contained in:
drrtuy
2025-09-01 15:13:17 +00:00
committed by Leonid Fedorov
parent b92e5ae155
commit 96fc875255
3 changed files with 13 additions and 3 deletions
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11
dbcon/execplan/calpontselectexecutionplan.cpp
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@@ -1182,10 +1182,15 @@ execplan::SCSEP CalpontSelectExecutionPlan::cloneForTableWORecursiveSelectsGbObH
// Deep copy of column map
for (const auto& entry : fColumnMap)
{
// WIP only relevant RCs must be copied
if (entry.second)
auto tableAlias = entry.second->singleTable();
// TODO We insert multiple times if there are multiple SCs for the same RC.
if (tableAlias && targetTableAlias.weakerEq(*tableAlias))
{
newColumnMap.insert({entry.first, SRCP(entry.second->clone())});
auto it = fColumnMap.find(entry.first);
if (it == fColumnMap.end())
{
newColumnMap.insert({entry.first, SRCP(entry.second->clone())});
}
}
}

3
dbcon/mysql/ha_exists_sub.cpp
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@@ -127,6 +127,9 @@ execplan::ParseTree* ExistsSub::transform()
return NULL;
}
// Insert column statistics
fGwip.mergeTableStatistics(gwi.tableStatisticsMap);
// remove outer query tables
CalpontSelectExecutionPlan::TableList tblist;

2
dbcon/rbo/rbo_apply_parallel_ces.cpp
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@@ -441,6 +441,8 @@ execplan::SCSEP createDerivedTableFromTable(execplan::CalpontSelectExecutionPlan
}
{
derivedCSEP->tableAlias(tableAlias, true);
auto additionalUnionVec = makeUnionFromTable(
*derivedCSEP, const_cast<execplan::CalpontSystemCatalog::TableAliasName&>(table), ctx);