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Check can become nullable before applying join_use_nulls

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vdimir 2023-05-09 16:43:32 +00:00
parent 40d658e467
commit 12141bb6cd
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src/Analyzer/Passes/QueryAnalysisPass.cpp
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@ -1219,6 +1219,7 @@ private:
static void convertJoinedColumnTypeToNullIfNeeded(QueryTreeNodePtr & resolved_identifier, const JoinKind & join_kind, std::optional<JoinTableSide> resolved_side)
{
if (resolved_identifier->getNodeType() == QueryTreeNodeType::COLUMN &&
JoinCommon::canBecomeNullable(resolved_identifier->getResultType()) &&
(isFull(join_kind) ||
(isLeft(join_kind) && resolved_side && *resolved_side == JoinTableSide::Right) ||
(isRight(join_kind) && resolved_side && *resolved_side == JoinTableSide::Left)))