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https://issues.apache.org/jira/browse/CALCITE-815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17986290#comment-17986290
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ZheHu commented on CALCITE-815:
-------------------------------
[~julianhyde] Before going forward, I want to make sure that I understand the
above discussion correctly. Here is what I do:
- add SqlConformance#emptyStringIsNull that only ORACLE is enabled
- add one BuiltInMethod that handles empty string to null if emptyStringIsNull
is true
- splicing this function in String functions that produce empty strings(my
[dev-branch|https://github.com/ILuffZhe/calcite/commit/48ecd0f76e9ba9bf195913d9f4c789add8ede432]
takes REPLACE as an example)
> Add an option to allow empty strings to represent null values
> -------------------------------------------------------------
>
> Key: CALCITE-815
> URL: https://issues.apache.org/jira/browse/CALCITE-815
> Project: Calcite
> Issue Type: New Feature
> Reporter: Wei Xue
> Assignee: ZheHu
> Priority: Major
> Labels: dialect, phoenix
>
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