Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/2159#discussion_r69039071
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/table.scala
---
@@ -446,9 +446,9 @@ class Table(
}
/**
- * Intersect two [[Table]]s with duplicate records removed. Intersect
returns rows only
- * from the left table that are identical to a row in the right table.
- * Similar to an SQL INTERSECT. The fields of the two union operations
must fully overlap.
+ * Intersect two [[Table]]s with duplicate records removed. Intersect
returns records that
+ * exist in both tables, and emit exactly once. Similar to an SQL
INTERSECT. The fields of
--- End diff --
I would rephrase this to "Intersect returns records that exist in both
tables. If a record is present one or both tables more than once, it is
returned just once, i.e., the resulting table has no duplicate records."
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