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25 lines
533 B
C++
25 lines
533 B
C++
#pragma once
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#include <Interpreters/InDepthNodeVisitor.h>
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namespace DB
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{
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class ASTIdentifier;
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/// Data for RenameColumnVisitor which traverse tree and rename all columns with
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/// name column_name to rename_to
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struct RenameColumnData
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{
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using TypeToVisit = ASTIdentifier;
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String column_name;
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String rename_to;
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void visit(ASTIdentifier & identifier, ASTPtr & ast) const;
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};
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using RenameColumnMatcher = OneTypeMatcher<RenameColumnData>;
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using RenameColumnVisitor = InDepthNodeVisitor<RenameColumnMatcher, true>;
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}
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