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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8302) Support shift_left and shift_right in TableAPI
Date Mon, 01 Jan 2018 01:56:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307352#comment-16307352
] 

ASF GitHub Bot commented on FLINK-8302:
---------------------------------------

Github user sunjincheng121 commented on a diff in the pull request:

    https://github.com/apache/flink/pull/5202#discussion_r159148500
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/sql/ScalarSqlFunctions.scala
---
    @@ -58,4 +58,22 @@ object ScalarSqlFunctions {
           OperandTypes.family(SqlTypeFamily.NUMERIC, SqlTypeFamily.NUMERIC)),
         SqlFunctionCategory.NUMERIC)
     
    +  val SHIFT_LEFT = new SqlFunction(
    +    "SHIFT_LEFT",
    +    SqlKind.OTHER_FUNCTION,
    +    ReturnTypes.ARG0,
    +    null,
    +    OperandTypes.family(SqlTypeFamily.NUMERIC, SqlTypeFamily.NUMERIC),
    +    SqlFunctionCategory.NUMERIC
    +  )
    +
    +  val SHIFT_RIGHT = new SqlFunction(
    +    "SHIFT_RIGHT",
    +    SqlKind.OTHER_FUNCTION,
    +    ReturnTypes.ARG0,
    +    null,
    +    OperandTypes.family(SqlTypeFamily.NUMERIC, SqlTypeFamily.NUMERIC),
    +    SqlFunctionCategory.NUMERIC
    --- End diff --
    
    Second operand should be  SqlTypeFamily.INTEGER.
     `OperandTypes.family(SqlTypeFamily.NUMERIC, SqlTypeFamily.NUMERIC) -> OperandTypes.family(SqlTypeFamily.NUMERIC,
SqlTypeFamily.INTEGER) `


> Support shift_left and shift_right in TableAPI
> ----------------------------------------------
>
>                 Key: FLINK-8302
>                 URL: https://issues.apache.org/jira/browse/FLINK-8302
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: DuBin
>              Labels: features
>             Fix For: 1.5.0
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> Add shift_left and shift_right support in TableAPI, shift_left(input, n) act as input
<< n, shift_right(input, n) act as input >> n.



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