[
https://issues.apache.org/jira/browse/CALCITE-3731?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17017347#comment-17017347
]
Rui Wang edited comment on CALCITE-3731 at 1/16/20 5:48 PM:
------------------------------------------------------------
Agreed with all above. IF, CASE and Coalesce can all be converted to CASE WHEN
and then share the same implementation.
was (Author: amaliujia):
Agreed with all above. IF, CASE and Coalesce can all be converted to CASE and
then share the same implementation.
> Add IF function for BigQuery, Hive and Spark Dialects
> -----------------------------------------------------
>
> Key: CALCITE-3731
> URL: https://issues.apache.org/jira/browse/CALCITE-3731
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: vaibhav jain
> Priority: Major
> Labels: pull-request-available
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> Adding support for *IF* function for BigQuery, Hive and Spark Dialects.
> *Syntax*- IF(condition, true_result, false_result)
> If *condition* is true, returns *true_result*, else returns *false_result*.
> Document links:
> [BigQuery|https://cloud.google.com/bigquery/docs/reference/standard-sql/conditional_expressions]
> [Hive
> |https://cwiki.apache.org/confluence/display/Hive/LanguageManual+UDF#LanguageManualUDF-ConditionalFunctions]
> [Spark Sql|https://spark.apache.org/docs/2.3.1/api/sql/index.html#if]
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
