2012-06-25 02:52:51 +00:00
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#pragma once
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2017-04-01 09:19:00 +00:00
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#include <DataStreams/IBlockInputStream.h>
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2012-06-25 02:52:51 +00:00
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namespace DB
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{
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2020-01-31 16:29:40 +00:00
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class Pipe;
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2017-05-13 22:19:04 +00:00
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/** If the number of sources of `inputs` is greater than `width`,
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* then glues the sources to each other (using ConcatBlockInputStream),
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* so that the number of sources becomes no more than `width`.
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2012-06-25 02:52:51 +00:00
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*
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2017-05-13 22:19:04 +00:00
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* Trying to glue the sources with each other uniformly randomly.
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* (to avoid overweighting if the distribution of the amount of data in different sources is subject to some pattern)
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2012-06-25 02:52:51 +00:00
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*/
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2020-08-03 11:33:11 +00:00
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void narrowPipe(Pipe & pipe, size_t width);
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2012-06-25 02:52:51 +00:00
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}
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