2013-02-21 10:02:33 +00:00
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#pragma once
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2017-04-01 09:19:00 +00:00
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#include <Interpreters/Context.h>
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#include <Interpreters/IInterpreter.h>
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2013-02-21 10:02:33 +00:00
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namespace DB
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{
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2014-06-26 00:58:14 +00:00
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2013-02-22 09:41:13 +00:00
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/** Вернуть названия и типы столбцов указанной таблицы.
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2017-04-01 07:20:54 +00:00
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*/
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2015-06-18 02:11:05 +00:00
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class InterpreterDescribeQuery : public IInterpreter
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2013-02-22 09:41:13 +00:00
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{
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public:
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2017-04-01 07:20:54 +00:00
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InterpreterDescribeQuery(ASTPtr query_ptr_, const Context & context_)
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: query_ptr(query_ptr_), context(context_) {}
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2014-06-26 00:58:14 +00:00
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2017-04-01 07:20:54 +00:00
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BlockIO execute() override;
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2014-06-26 00:58:14 +00:00
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2013-02-22 09:41:13 +00:00
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private:
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2017-04-01 07:20:54 +00:00
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ASTPtr query_ptr;
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Context context;
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2014-06-26 00:58:14 +00:00
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2017-04-01 07:20:54 +00:00
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Block getSampleBlock();
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BlockInputStreamPtr executeImpl();
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2013-02-22 09:41:13 +00:00
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};
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2014-06-26 00:58:14 +00:00
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2013-02-21 10:02:33 +00:00
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}
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