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30 lines
714 B
C++
30 lines
714 B
C++
#pragma once
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#include <Parsers/IAST.h>
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namespace DB
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{
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/** Something like t.*
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* It will have qualifier as its child ASTIdentifier.
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* Optional transformers can be attached to further manipulate these expanded columns.
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*/
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class ASTQualifiedAsterisk : public IAST
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{
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public:
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String getID(char) const override { return "QualifiedAsterisk"; }
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ASTPtr clone() const override
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{
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auto clone = std::make_shared<ASTQualifiedAsterisk>(*this);
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clone->cloneChildren();
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return clone;
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}
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void appendColumnName(WriteBuffer & ostr) const override;
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protected:
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void formatImpl(const FormatSettings & settings, FormatState & state, FormatStateStacked frame) const override;
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};
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}
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