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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
#pragma once
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#include <Parsers/IParserBase.h>
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#include <Parsers/ExpressionElementParsers.h>
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#include <Parsers/ASTAlterQuery.h>
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namespace DB
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{
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/** Query like this:
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* ALTER TABLE [db.]name [ON CLUSTER cluster]
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* [ADD COLUMN [IF NOT EXISTS] col_name type [AFTER col_after],]
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* [DROP COLUMN [IF EXISTS] col_to_drop, ...]
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* [CLEAR COLUMN [IF EXISTS] col_to_clear[ IN PARTITION partition],]
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* [MODIFY COLUMN [IF EXISTS] col_to_modify type, ...]
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* [RENAME COLUMN [IF EXISTS] col_name TO col_name]
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* [MODIFY PRIMARY KEY (a, b, c...)]
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* [MODIFY SETTING setting_name=setting_value, ...]
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* [RESET SETTING setting_name, ...]
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* [COMMENT COLUMN [IF EXISTS] col_name string]
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* [MODIFY COMMENT string]
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* [DROP|DETACH|ATTACH PARTITION|PART partition, ...]
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* [FETCH PARTITION partition FROM ...]
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* [FREEZE [PARTITION] [WITH NAME name]]
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* [DELETE[ IN PARTITION partition] WHERE ...]
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* [UPDATE col_name = expr, ...[ IN PARTITION partition] WHERE ...]
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* [ADD INDEX [IF NOT EXISTS] index_name [AFTER index_name]]
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* [DROP INDEX [IF EXISTS] index_name]
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* [CLEAR INDEX [IF EXISTS] index_name IN PARTITION partition]
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* [MATERIALIZE INDEX [IF EXISTS] index_name [IN PARTITION partition]]
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* ALTER LIVE VIEW [db.name]
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* [REFRESH]
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*/
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class ParserAlterQuery : public IParserBase
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{
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protected:
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const char * getName() const override{ return "ALTER query"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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};
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class ParserAlterCommandList : public IParserBase
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{
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protected:
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const char * getName() const override{ return "a list of ALTER commands"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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public:
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ASTAlterQuery::AlterObjectType alter_object;
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ParserAlterCommandList(ASTAlterQuery::AlterObjectType alter_object_ = ASTAlterQuery::AlterObjectType::TABLE)
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: alter_object(alter_object_) {}
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};
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class ParserAlterCommand : public IParserBase
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{
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protected:
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const char * getName() const override{ return "ALTER command"; }
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bool parseImpl(Pos & pos, ASTPtr & node, Expected & expected) override;
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public:
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ASTAlterQuery::AlterObjectType alter_object;
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ParserAlterCommand(ASTAlterQuery::AlterObjectType alter_object_ = ASTAlterQuery::AlterObjectType::TABLE)
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: alter_object(alter_object_) {}
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};
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}
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