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https://issues.apache.org/jira/browse/DRILL-5361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15930229#comment-15930229
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Paul Rogers commented on DRILL-5361:
------------------------------------
Our documentation list all functions without parens. {{NOW()}} is listed as
{{NOW}} (no parens), I had to figure out it needed parens. So, when I tried
{{CURRENT_DATE}}, I added parens.
As was suggested, maybe just change the doc to show if parens are required or
no parens are required.
{code}
NOW()
CURRENT_DATE
{code}
Or, just allow people to experiment and learn the hard way as I have, or rely
on prior knowledge as Zelaine has.
Would be nice to make parens optional, but that is a very low priority request.
> CURRENT_DATE() documented, but not actually available in Drill
> --------------------------------------------------------------
>
> Key: DRILL-5361
> URL: https://issues.apache.org/jira/browse/DRILL-5361
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.10.0
> Reporter: Paul Rogers
>
> The [Drill
> documentation|http://drill.apache.org/docs/date-time-functions-and-arithmetic/]
> describes a CURRENT_DATE() function. Tried the following query:
> {code}
> SELECT CURRENT_DATE() FROM (VALUES(1))
> {code}
> Got the following errors:
> {code}
> SEVERE: org.apache.calcite.sql.validate.SqlValidatorException: No match found
> for function signature CURRENT_DATE()
> SEVERE: org.apache.calcite.runtime.CalciteContextException: From line 1,
> column 8 to line 1, column 21: No match found for function signature
> CURRENT_DATE()
> {code}
> Please:
> * Implement the function, or
> * Remove the function from the documentation, or
> * Leave the function in the docs, but add a footnote saying that the function
> is not yet available.
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