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fix duplicated any function rewrite (#13419)

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Artem Zuikov 2020-08-07 01:36:14 +03:00 committed by GitHub
parent cece629145
commit e05dc65e73
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3 changed files with 5 additions and 3 deletions
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6
src/Interpreters/RewriteAnyFunctionVisitor.cpp
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@ -14,7 +14,7 @@ namespace DB
namespace
{
bool extractIdentifiers(const ASTFunction & func, std::vector<ASTPtr *> & identifiers)
bool extractIdentifiers(const ASTFunction & func, std::unordered_set<ASTPtr *> & identifiers)
{
for (auto & arg : func.arguments->children)
{
@ -30,7 +30,7 @@ bool extractIdentifiers(const ASTFunction & func, std::vector<ASTPtr *> & identi
return false;
}
else if (arg->as<ASTIdentifier>())
identifiers.emplace_back(&arg);
identifiers.emplace(&arg);
}
return true;
@ -67,7 +67,7 @@ void RewriteAnyFunctionMatcher::visit(const ASTFunction & func, ASTPtr & ast, Da
return;
}
std::vector<ASTPtr *> identifiers;
std::unordered_set<ASTPtr *> identifiers; /// implicit remove duplicates
if (!extractIdentifiers(func, identifiers))
return;

1
tests/queries/0_stateless/01430_fix_any_rewrite_aliases.reference Normal file
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@ -0,0 +1 @@
1

1
tests/queries/0_stateless/01430_fix_any_rewrite_aliases.sql Normal file
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@ -0,0 +1 @@
SELECT any(if(if(x, 1, 2) AS a_, a_, 0)) FROM (SELECT 1 AS x);