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mayBenefitFromIndexForIn returns true if at least one tuple element is in pk [#CLICKHOUSE-3680]

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Nikolai Kochetov 2018-04-03 21:37:35 +03:00
parent ad137994f9
commit a687c41a8c
1 changed files with 4 additions and 5 deletions
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9
dbms/src/Storages/MergeTree/MergeTreeData.cpp
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@ -2195,12 +2195,11 @@ bool MergeTreeData::mayBenefitFromIndexForIn(const ASTPtr & left_in_operand) con
if (left_in_operand_tuple && left_in_operand_tuple->name == "tuple")
{
for (const auto & item : left_in_operand_tuple->arguments->children)
if (!isPrimaryKeyColumnPossiblyWrappedInFunctions(item))
/// The tuple itself may be part of the primary key, so check that as a last resort.
return isPrimaryKeyColumnPossiblyWrappedInFunctions(left_in_operand);
if (isPrimaryKeyColumnPossiblyWrappedInFunctions(item))
return true;
/// tuple() is invalid but can still be found here since this method may be called before the arguments are validated.
return !left_in_operand_tuple->arguments->children.empty();
/// The tuple itself may be part of the primary key, so check that as a last resort.
return isPrimaryKeyColumnPossiblyWrappedInFunctions(left_in_operand);
}
else
{