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https://issues.apache.org/jira/browse/DRILL-5363?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15929430#comment-15929430
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Khurram Faraaz commented on DRILL-5363:
---------------------------------------
Same as CURRENT_DATE, CURRENT_TIMESTAMP also works without open and close
parentheses.
{noformat}
0: jdbc:drill:schema=dfs.tmp> select CURRENT_TIMESTAMP FROM (values(1));
+--------------------------+
| CURRENT_TIMESTAMP |
+--------------------------+
| 2017-03-17 05:15:07.719 |
+--------------------------+
1 row selected (0.247 seconds)
{noformat}
> CURRENT_TIMESTAMP() documented, but not actually available in Drill
> -------------------------------------------------------------------
>
> Key: DRILL-5363
> URL: https://issues.apache.org/jira/browse/DRILL-5363
> Project: Apache Drill
> Issue Type: Bug
> Reporter: Paul Rogers
>
> The [Drill
> documentation|http://drill.apache.org/docs/date-time-functions-and-arithmetic/]
> describes a CURRENT_TIMESTAMP() function. Tried the following query:
> {code}
> SELECT CURRENT_TIMESTAMP() FROM (VALUES(1))
> {code}
> Got the following errors:
> {code}
> SEVERE: org.apache.calcite.sql.validate.SqlValidatorException: No match found
> for function signature CURRENT_TIMESTAMP()
> SEVERE: org.apache.calcite.runtime.CalciteContextException: From line 1,
> column 8 to line 1, column 26: No match found for function signature
> CURRENT_TIMESTAMP()
> {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.
> Note that Drill provides a {{NOW()}} function which does work and would seem
> to do exactly the same as the non-existent {{CURRENT_TIMESTAMP()}} function.
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