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37 lines
946 B
C++
37 lines
946 B
C++
#include <Storages/IStorage.h>
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#include <Storages/ColumnsDescription.h>
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#include <Storages/StorageValues.h>
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#include <DataStreams/OneBlockInputStream.h>
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#include <Processors/Sources/SourceFromSingleChunk.h>
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#include <Processors/Pipe.h>
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namespace DB
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{
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StorageValues::StorageValues(const StorageID & table_id_, const ColumnsDescription & columns_, const Block & res_block_)
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: IStorage(table_id_), res_block(res_block_)
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{
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setColumns(columns_);
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}
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Pipes StorageValues::read(
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const Names & column_names,
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const SelectQueryInfo & /*query_info*/,
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const Context & /*context*/,
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QueryProcessingStage::Enum /*processed_stage*/,
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size_t /*max_block_size*/,
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unsigned /*num_streams*/)
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{
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check(column_names, true);
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Pipes pipes;
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Chunk chunk(res_block.getColumns(), res_block.rows());
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pipes.emplace_back(std::make_shared<SourceFromSingleChunk>(res_block.cloneEmpty(), std::move(chunk)));
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return pipes;
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}
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}
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