Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/2468#discussion_r79826729
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/expressions/time.scala
---
@@ -248,3 +249,97 @@ case class LocalTime() extends
CurrentTimePoint(SqlTimeTypeInfo.TIME, local = tr
case class LocalTimestamp() extends
CurrentTimePoint(SqlTimeTypeInfo.TIMESTAMP, local = true)
+case class TemporalOverlaps(
+ leftTimePoint: Expression,
+ leftTemporal: Expression,
+ rightTimePoint: Expression,
+ rightTemporal: Expression)
+ extends Expression {
+
+ override private[flink] def children: Seq[Expression] =
+ Seq(leftTimePoint, leftTemporal, rightTimePoint, rightTemporal)
+
+ override private[flink] def resultType: TypeInformation[_] =
BOOLEAN_TYPE_INFO
+
+ override private[flink] def validateInput(): ExprValidationResult = {
+ if (!TypeCheckUtils.isTimePoint(leftTimePoint.resultType)) {
+ return ValidationFailure(s"TemporalOverlaps operator requires
leftTimePoint to be of type " +
+ s"Time Point, but get ${leftTimePoint.resultType}.")
+ }
+ if (!TypeCheckUtils.isTimePoint(rightTimePoint.resultType)) {
+ return ValidationFailure(s"TemporalOverlaps operator requires
rightTimePoint to be of " +
+ s"type Time Point, but get ${rightTimePoint.resultType}.")
+ }
+ if (leftTimePoint.resultType != rightTimePoint.resultType) {
+ return ValidationFailure(s"TemporalOverlaps operator requires
leftTimePoint and " +
+ s"rightTimePoint to be of same type.")
+ }
+
+ // leftTemporal is point, then it must be comparable with leftTimePoint
+ if (TypeCheckUtils.isTimePoint(leftTemporal.resultType)) {
+ if (leftTemporal.resultType != leftTimePoint.resultType) {
+ return ValidationFailure(s"TemporalOverlaps operator requires
leftTemporal and " +
+ s"leftTimePoint to be of same type if leftPointOrInterval is of
type Time Point.")
+ }
+ } else if (!isTimeInterval(leftTemporal.resultType)) {
+ return ValidationFailure(s"TemporalOverlaps operator requires
leftTemporal to be of " +
+ s"type Time Point or Time Interval.")
+ }
+
+ // rightTemporal is point, then it must be comparable with
rightTimePoint
+ if (TypeCheckUtils.isTimePoint(rightTemporal.resultType)) {
+ if (rightTemporal.resultType != rightTimePoint.resultType) {
+ return ValidationFailure(s"TemporalOverlaps operator requires
rightTemporal and " +
+ s"rightTimePoint to be of same type if rightPointOrInterval is
of type Time Point.")
--- End diff --
`rightPointOrInterval` should be `rightTemporal`?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
