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Column comment is only avaiable since 18.16 #686

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zhicwu merged 1 commit into from
Jul 11, 2021
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Column comment is only avaiable since 18.16 #686

zhicwu merged 1 commit into from
Jul 11, 2021

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@zhicwu zhicwu commented Jul 11, 2021

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@zhicwu zhicwu linked an issue Jul 11, 2021 that may be closed by this pull request
system.columns.comment column was introduced only in 18.16.0 #684
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github-actions bot commented Jul 11, 2021 

Benchmark                           (client)  (statement)   Mode  Cnt     Score     Error  Units
Basic.insertOneRandomNumber  clickhouse-jdbc       normal  thrpt   20   282.933 ±  27.683  ops/s
Basic.insertOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20   278.250 ±  32.181  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc       normal  thrpt   20  1851.674 ± 238.774  ops/s
Basic.selectOneRandomNumber  clickhouse-jdbc     prepared  thrpt   20  1889.328 ± 250.241  ops/s

@zhicwu zhicwu merged commit 5d952a9 into ClickHouse:develop Jul 11, 2021
@zhicwu zhicwu deleted the column-comment branch July 11, 2021 09:37
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system.columns.comment column was introduced only in 18.16.0

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