flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-9853) add hex support in table api and sql
Date Mon, 13 Aug 2018 12:03:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-9853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16578171#comment-16578171

ASF GitHub Bot commented on FLINK-9853:

twalthr commented on a change in pull request #6337: [FLINK-9853] [table] Add HEX support

URL: https://github.com/apache/flink/pull/6337#discussion_r209582133

 File path: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/expressions/mathExpressions.scala
 @@ -422,3 +422,21 @@ case class Bin(child: Expression) extends UnaryExpression {
     relBuilder.call(ScalarSqlFunctions.BIN, child.toRexNode)
+case class Hex(child: Expression) extends UnaryExpression {
+  override private[flink] def resultType: TypeInformation[_] = BasicTypeInfo.STRING_TYPE_INFO
+  override private[flink] def validateInput(): ValidationResult = child.resultType match
+    case _: IntegerTypeInfo[_] =>
 Review comment:
   Rely on `TypeCheckUtils.isIntegerFamily` and `TypeCheckUtils#isString` instead.

This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:

> add hex support in table api and sql
> ------------------------------------
>                 Key: FLINK-9853
>                 URL: https://issues.apache.org/jira/browse/FLINK-9853
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API &amp; SQL
>            Reporter: xueyu
>            Priority: Major
>              Labels: pull-request-available
> like in mysql, HEX could take int or string arguments, For a integer argument N, it returns
a hexadecimal string representation of the value of N. For a string argument str, it returns
a hexadecimal string representation of str where each byte of each character in str is converted
to two hexadecimal digits. 
> Syntax:
> HEX(100) = 64
> HEX('This is a test String.') = '546869732069732061207465737420537472696e672e'
> See more: [link MySQL|https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_hex]

This message was sent by Atlassian JIRA

View raw message