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42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
#pragma once
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#include <DB/Parsers/ASTInsertQuery.h>
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#include <DB/Interpreters/Context.h>
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#include <DB/IO/ConcatReadBuffer.h>
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#include <DB/DataStreams/IProfilingBlockInputStream.h>
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#include <DB/DataStreams/BlockIO.h>
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int LOGICAL_ERROR;
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}
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/** Prepares an input stream which produce data containing in INSERT query
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* Head of inserting data could be stored in INSERT ast directly
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* Remaining (tail) data could be stored in input_buffer_tail_part
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*/
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class InputStreamFromASTInsertQuery : public IProfilingBlockInputStream
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{
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public:
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InputStreamFromASTInsertQuery(const ASTPtr & ast, ReadBuffer & input_buffer_tail_part, const BlockIO & streams, Context & context);
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Block readImpl() override { return res_stream->read(); }
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void readPrefixImpl() override { return res_stream->readPrefix(); }
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void readSuffixImpl() override { return res_stream->readSuffix(); }
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String getName() const override { return "InputStreamFromASTInsertQuery"; }
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String getID() const override { return "InputStreamFromASTInsertQuery(" + toString(this) + ")"; }
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private:
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std::unique_ptr<ReadBuffer> input_buffer_ast_part;
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std::unique_ptr<ReadBuffer> input_buffer_contacenated;
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BlockInputStreamPtr res_stream;
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};
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}
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