[jira] [Updated] (SPARK-20754) Add Function Alias For MOD/TRUNCT/POSITION

["Xiao Li (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-20754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Xiao Li updated SPARK-20754:
----------------------------
    Summary: Add Function Alias For MOD/TRUNCT/POSITION  (was: Add Function Alias For )

> Add Function Alias For MOD/TRUNCT/POSITION
> ------------------------------------------
>
>                 Key: SPARK-20754
>                 URL: https://issues.apache.org/jira/browse/SPARK-20754
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Xiao Li
>
> We already have the impl of the following functions. We can add the function alias to be consistent with ANSI. 
> {noformat} 
> MOD(<m>,<n>)
> {noformat} 
> Returns the remainder of m divided by n. Returns m if n is 0.
> {noformat} 
> TRUNC
> {noformat} 
> Returns the number x, truncated to D decimals. If D is 0, the result will have no decimal point or fractional part. If D is negative, the number is zeroed out.
> {noformat} 
> POSITION
> {noformat} 
> Returns the position of the char IN <string>) in the source string.



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