fhueske commented on a change in pull request #6521: [FLINK-5315][table] Adding
support for distinct operation for table API on DataStream
URL: https://github.com/apache/flink/pull/6521#discussion_r211226961
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/expressions/ExpressionParser.scala
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@@ -397,6 +403,11 @@ object ExpressionParser extends JavaTokenParsers with
PackratParsers {
lazy val prefixToTime: PackratParser[Expression] =
TO_TIME ~ "(" ~> expression <~ ")" ^^ { e => Cast(e, SqlTimeTypeInfo.TIME)
}
+ lazy val prefixDistinct: PackratParser[Expression] =
+ functionIdent ~ "." ~ "distinct" ~ "(" ~ repsep(expression, ",") ~ ")" ^^ {
Review comment:
use `DISTINCT` instead of `"distinct"`
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