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45 lines
947 B
C++
45 lines
947 B
C++
#pragma once
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#include <Parsers/ASTQueryWithTableAndOutput.h>
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#include <Parsers/ASTQueryWithOnCluster.h>
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namespace DB
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{
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/** DROP query
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*/
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class ASTDropQuery : public ASTQueryWithTableAndOutput, public ASTQueryWithOnCluster
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{
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public:
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enum Kind
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{
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Drop,
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Detach,
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Truncate,
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};
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Kind kind;
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bool if_exists{false};
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/// Useful if we already have a DDL lock
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bool no_ddl_lock{false};
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/// We dropping dictionary, so print correct word
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bool is_dictionary{false};
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/** Get the text that identifies this element. */
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String getID(char) const override;
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ASTPtr clone() const override;
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ASTPtr getRewrittenASTWithoutOnCluster(const std::string & new_database) const override
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{
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return removeOnCluster<ASTDropQuery>(clone(), new_database);
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}
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protected:
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void formatQueryImpl(const FormatSettings & settings, FormatState &, FormatStateStacked) const override;
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};
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}
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