2017-04-01 09:19:00 +00:00
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#include <Common/Exception.h>
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2011-08-28 02:22:23 +00:00
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2017-04-01 09:19:00 +00:00
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#include <Columns/ColumnsNumber.h>
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#include <DataTypes/DataTypesNumber.h>
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#include <DataStreams/OneBlockInputStream.h>
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#include <Storages/System/StorageSystemOne.h>
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2011-08-28 02:22:23 +00:00
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namespace DB
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{
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StorageSystemOne::StorageSystemOne(const std::string & name_)
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2018-01-25 14:42:39 +00:00
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: name(name_)
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2011-08-28 02:22:23 +00:00
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{
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2018-03-13 14:18:11 +00:00
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setColumns(ColumnsDescription({{"dummy", std::make_shared<DataTypeUInt8>()}}));
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2011-08-28 02:22:23 +00:00
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}
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2012-01-09 19:20:48 +00:00
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BlockInputStreams StorageSystemOne::read(
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2017-04-01 07:20:54 +00:00
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const Names & column_names,
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2017-12-02 02:47:12 +00:00
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const SelectQueryInfo &,
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2018-04-19 15:18:26 +00:00
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const Context & context,
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QueryProcessingStage::Enum processed_stage,
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2017-12-02 02:47:12 +00:00
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const size_t /*max_block_size*/,
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const unsigned /*num_streams*/)
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2011-08-28 02:22:23 +00:00
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{
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2017-04-01 07:20:54 +00:00
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check(column_names);
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2018-04-19 15:18:26 +00:00
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checkQueryProcessingStage(processed_stage, context);
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2012-05-08 11:19:00 +00:00
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2017-12-16 00:49:03 +00:00
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return BlockInputStreams(1, std::make_shared<OneBlockInputStream>(
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Block{ColumnWithTypeAndName(
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DataTypeUInt8().createColumnConst(1, UInt64(0))->convertToFullColumnIfConst(),
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std::make_shared<DataTypeUInt8>(),
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"dummy")}));
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2011-08-28 02:22:23 +00:00
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}
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}
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