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23 lines
570 B
C++
23 lines
570 B
C++
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#include <Parsers/ASTSubquery.h>
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#include <Parsers/ExpressionElementParsers.h>
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#include <Parsers/ParserSelectQuery.h>
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#include <Parsers/ParserUnionQueryElement.h>
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#include <Common/typeid_cast.h>
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namespace DB
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{
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bool ParserUnionQueryElement::parseImpl(Pos & pos, ASTPtr & node, Expected & expected)
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{
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if (!ParserSubquery().parse(pos, node, expected) && !ParserSelectQuery().parse(pos, node, expected))
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return false;
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if (auto * ast_sub_query = typeid_cast<ASTSubquery *>(node.get()))
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node = ast_sub_query->children.at(0);
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return true;
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}
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}
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