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https://issues.apache.org/jira/browse/SPARK-4151?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Josh Rosen updated SPARK-4151:
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Fix Version/s: (was: 1.1.1)
1.1.2
> Add string operation function trim, ltrim, rtrim, length to support SparkSql
> (HiveQL)
> --------------------------------------------------------------------------------------
>
> Key: SPARK-4151
> URL: https://issues.apache.org/jira/browse/SPARK-4151
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.1.0
> Reporter: shengli
> Priority: Minor
> Fix For: 1.1.0, 1.1.2
>
> Original Estimate: 72h
> Remaining Estimate: 72h
>
> Add three string operation functions to support spark sql and hiveql.
> eg:
> sql("select trim(' a b ') from src ").collect() --> 'a b'
> sql("select ltrim(' a b ') from src ").collect() --> 'a b '
> sql("select rtrim(' a b ') from src ").collect() --> ' a b'
> sql("select length('ab') from src ").collect() --> 2
> And Rename the trait of stringOperations.scala.
> I prefer to rename trait CaseConversionExpression to
> StringTransformationExpression, it is more make sence than before so that
> this trait can support more string transformation but not only caseconversion.
> And also add a trait StringCalculationExpression that do string computation
> like length, indexof etc....
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