xueyu created FLINK-9907:
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Summary: 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 & SQL
Reporter: xueyu
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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