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34 lines
643 B
C++
34 lines
643 B
C++
#pragma once
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#include <DB/Parsers/ASTUseQuery.h>
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#include <DB/Interpreters/Context.h>
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#include <DB/Interpreters/IInterpreter.h>
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namespace DB
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{
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/** Выбрать БД по-умолчанию для сессии.
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*/
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class InterpreterUseQuery : public IInterpreter
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{
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public:
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InterpreterUseQuery(ASTPtr query_ptr_, Context & context_)
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: query_ptr(query_ptr_), context(context_) {}
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BlockIO execute() override
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{
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const String & new_database = typeid_cast<const ASTUseQuery &>(*query_ptr).database;
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context.getSessionContext().setCurrentDatabase(new_database);
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return {};
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}
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private:
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ASTPtr query_ptr;
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Context & context;
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};
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}
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