dongjoon-hyun commented on a change in pull request #26438: [SPARK-29408][SQL]
Support sign before `interval` in interval literals
URL: https://github.com/apache/spark/pull/26438#discussion_r344470727
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala
##########
@@ -1948,7 +1959,8 @@ class AstBuilder(conf: SQLConf) extends
SqlBaseBaseVisitor[AnyRef] with Logging
"Can only have a single from-to unit in the interval literal syntax",
errorCtx)
}
- Literal(visitUnitToUnitInterval(innerCtx.body), CalendarIntervalType)
+ val interval = applySign(visitUnitToUnitInterval(innerCtx.body))
Review comment:
```scala
- val interval = applySign(visitUnitToUnitInterval(innerCtx.body))
+ val interval = applySign(ctx.sign,
visitUnitToUnitInterval(innerCtx.body))
```
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