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30 lines
695 B
C++
30 lines
695 B
C++
#include <Dictionaries/DictionaryBlockInputStreamBase.h>
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namespace DB
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{
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DictionaryBlockInputStreamBase::DictionaryBlockInputStreamBase(size_t rows_count, size_t max_block_size)
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: rows_count(rows_count), max_block_size(max_block_size), next_row(0)
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{
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}
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String DictionaryBlockInputStreamBase::getID() const
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{
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std::stringstream ss;
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ss << static_cast<const void*>(this);
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return ss.str();
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}
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Block DictionaryBlockInputStreamBase::readImpl()
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{
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if (next_row == rows_count)
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return Block();
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size_t block_size = std::min<size_t>(max_block_size, rows_count - next_row);
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Block block = getBlock(next_row, block_size);
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next_row += block_size;
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return block;
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}
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}
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