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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2020/12/03 14:07:00 UTC
[jira] [Commented] (SPARK-33646) Add new function
DATE_FROM_UNIX_DATE and UNIX_DATE
[ https://issues.apache.org/jira/browse/SPARK-33646?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17243198#comment-17243198 ]
Apache Spark commented on SPARK-33646:
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User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/30588
> Add new function DATE_FROM_UNIX_DATE and UNIX_DATE
> --------------------------------------------------
>
> Key: SPARK-33646
> URL: https://issues.apache.org/jira/browse/SPARK-33646
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Gengliang Wang
> Assignee: Gengliang Wang
> Priority: Major
>
> h2. What changes were proposed in this pull request?
> Add new functions DATE_FROM_UNIX_DATE and UNIX_DATE for conversion between Date type and Numeric types.
> h2. Why are the changes needed?
> 1. Explicit conversion between Date type and Numeric types is disallowed in ANSI mode. We need to provide new functions for users to complete the conversion.
> 2. We have introduced new functions from Bigquery for conversion between Timestamp type and Numeric types: TIMESTAMP_SECONDS, TIMESTAMP_MILLIS, TIMESTAMP_MICROS , UNIX_SECONDS, UNIX_MILLIS, and UNIX_MICROS. It makes sense to add functions for conversion between Date type and Numeric types as well.
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