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24 lines
543 B
C++
24 lines
543 B
C++
#pragma once
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#include <DataStreams/BlockIO.h>
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namespace DB
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{
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/** Interpreters interface for different queries.
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*/
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class IInterpreter
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{
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public:
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/** For queries that return a result (SELECT and similar), sets in BlockIO a stream from which you can read this result.
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* For queries that receive data (INSERT), sets a thread in BlockIO where you can write data.
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* For queries that do not require data and return nothing, BlockIO will be empty.
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*/
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virtual BlockIO execute() = 0;
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virtual ~IInterpreter() {}
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};
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}
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