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Posted to dev@phoenix.apache.org by "James Taylor (JIRA)" <ji...@apache.org> on 2015/12/02 01:42:11 UTC
[jira] [Commented] (PHOENIX-2476) Use the standard string
concatenation operator symbol
[ https://issues.apache.org/jira/browse/PHOENIX-2476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15034990#comment-15034990 ]
James Taylor commented on PHOENIX-2476:
---------------------------------------
Looks like Postgres and Oracle support || for string concatenation. I can see how + would be convenient, but not sure I'd call it the standard operator.
[~julianhyde] or [~maryannxue] - does Calcite support using the + operator for string concatenation?
> Use the standard string concatenation operator symbol
> -----------------------------------------------------
>
> Key: PHOENIX-2476
> URL: https://issues.apache.org/jira/browse/PHOENIX-2476
> Project: Phoenix
> Issue Type: Improvement
> Affects Versions: 4.6.0
> Reporter: Kevin Liew
> Labels: newbie, phoenix, string
>
> Phoenix uses '||' as the string concatenation operator symbol instead of the commonly used '+'
> https://msdn.microsoft.com/en-CA/library/ms177561.aspx
> If we try to use '+' we get an error from the queryserver
> {noformat}Type mismatch. VARCHAR for (COLUMN1 + KEYCOLUMN){noformat}
> The '+'
> operator is not implemented for VARCHAR so it would be an improvement to implement the standard function for that '+' symbol
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