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Posted to issues@flink.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2018/07/22 15:36:00 UTC

[jira] [Updated] (FLINK-9907) add CRC32 checksum in table Api and sql

     [ https://issues.apache.org/jira/browse/FLINK-9907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ASF GitHub Bot updated FLINK-9907:
----------------------------------
    Labels: pull-request-available  (was: )

> add CRC32 checksum in table Api and sql
> ---------------------------------------
>
>                 Key: FLINK-9907
>                 URL: https://issues.apache.org/jira/browse/FLINK-9907
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API &amp; SQL
>            Reporter: xueyu
>            Priority: Major
>              Labels: pull-request-available
>
> CRC32 returns the cyclic redundancy check value of a given string as a 32-bit unsigned value, null if string is null. In mysql and hive the syntax like
> select CRC32('test') = 3632233996
> Though it is not a hash function, however the pattern and behavior looks similar with hash functions (md5, sha1, sha2 etc..), so I put codegen in HashCalcCallGen



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