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https://issues.apache.org/jira/browse/SPARK-16609?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin updated SPARK-16609:
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Target Version/s: 2.2.0 (was: 2.1.0)
> Single function for parsing timestamps/dates
> --------------------------------------------
>
> Key: SPARK-16609
> URL: https://issues.apache.org/jira/browse/SPARK-16609
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Michael Armbrust
> Assignee: Reynold Xin
>
> Today, if you want to parse a date or timestamp, you have to use the unix
> time function and then cast to a timestamp. Its a little odd there isn't a
> single function that does both. I propose we add
> {code}
> to_date(<input>, <pattern>)/to_timestamp(<input>, <pattern>).
> {code}
> For reference, in other systems there are:
> MS SQL: {{convert(<input>, <pattern id>)}}. See:
> https://technet.microsoft.com/en-us/library/ms174450(v=sql.110).aspx
> Netezza: {{to_timestamp(<input>, <pattern>)}}. See:
> https://www.ibm.com/support/knowledgecenter/SSULQD_7.0.3/com.ibm.nz.dbu.doc/r_dbuser_ntz_sql_extns_conversion_funcs.html
> Teradata has special casting functionality: {{cast(<input> as timestamp
> format '<pattern>')}}
> MySql: {{STR_TO_DATE(<input>, <pattern>)}}. This returns a datetime when you
> define both date and time parts. See:
> https://dev.mysql.com/doc/refman/5.5/en/date-and-time-functions.html
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