[
https://issues.apache.org/jira/browse/FLINK-3574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15186912#comment-15186912
]
ASF GitHub Bot commented on FLINK-3574:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/1775#discussion_r55497175
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/expressions/call.scala
---
@@ -61,3 +70,11 @@ object BuiltInFunctionConstants {
val TRIM_TRAILING = Literal(2)
val TRIM_DEFAULT_CHAR = Literal(" ")
}
+
+object BuiltInMethods {
+ val LOG10 = Types.lookupMethod(classOf[Math], "log10", classOf[Double])
+ val EXP = Types.lookupMethod(classOf[Math], "exp", classOf[Double])
+ val POWER = Types.lookupMethod(classOf[Math], "pow", classOf[Double],
classOf[Double])
+ val LN = Types.lookupMethod(classOf[Math], "log", classOf[Double])
+ val ABS = Types.lookupMethod(classOf[SqlFunctions], "abs",
classOf[Double])
+}
--- End diff --
this file causes a scalastyle violation on travis:
```
error
file=/home/travis/build/apache/flink/flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/expressions/call.scala
message=File must end with newline character
```
> Implement math functions for Table API
> --------------------------------------
>
> Key: FLINK-3574
> URL: https://issues.apache.org/jira/browse/FLINK-3574
> Project: Flink
> Issue Type: Sub-task
> Components: Table API
> Reporter: Timo Walther
> Assignee: Dawid Wysakowicz
>
> {code}
> MOD
> EXP
> POWER
> LN
> LOG10
> ABS
> {code}
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