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https://issues.apache.org/jira/browse/FLINK-9970?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16558605#comment-16558605
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ASF GitHub Bot commented on FLINK-9970:
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yanghua commented on issue #6432: [FLINK-9970] Add ASCII function for table/sql
API
URL: https://github.com/apache/flink/pull/6432#issuecomment-408164654
@twalthr Really sorry about my careless. For this PR, I just want to push as
soon as possible, because it is mid-night in China, so did not check carefully,
sorry for that. Now, it has been updated, please review it again.
Actually, I have contributed to table module recently and implemented five
functions, they are `fromBase64`, `toBase64`, `log2(x)`, `ascii`, `chr`.
`ascii` and `chr(char)` is a pair functions in many RDBMS to exchange ASCII
code and character(string).
The purpose is I want to enhance Flink table/sql's functions. I know there
are some functions more important, I will try to implement them in the future.
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> Add ASCII function for table/sql API
> ------------------------------------
>
> Key: FLINK-9970
> URL: https://issues.apache.org/jira/browse/FLINK-9970
> Project: Flink
> Issue Type: New Feature
> Components: Table API & SQL
> Reporter: vinoyang
> Assignee: vinoyang
> Priority: Minor
> Labels: pull-request-available
>
> refer to :
> https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_ascii
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