twalthr commented on a change in pull request #6299: [FLINK-9713][table][sql]
Support processing time versioned joins
URL: https://github.com/apache/flink/pull/6299#discussion_r208501105
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/table.scala
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@@ -155,6 +158,90 @@ class Table(
select(withResolvedAggFunctionCall: _*)
}
+ /**
+ * Creates table version function backed up by this table as a history
table.
+ *
+ * @param version field for the [[TableVersionFunction]]. Must points to a
time indicator
+ * @param primaryKey field for the [[TableVersionFunction]].
+ * @return [[TableVersionFunction]]
+ */
+ def createTableVersionFunction(
+ version: String,
+ primaryKey: String): TableVersionFunction = {
Review comment:
Consider composite keys as well.
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