sunjincheng121 commented on a change in pull request #8087:
[FLINK-12029][table] Add column operations for TableApi
URL: https://github.com/apache/flink/pull/8087#discussion_r276875964
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File path:
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/api/scala/expressionDsl.scala
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@@ -184,6 +184,12 @@ trait ImplicitExpressionOperations {
*/
def % (other: Expression): Expression = mod(other)
+ /**
+ * Indicates the range from left to right, i.e. [left, right], which can be
used in columns
+ * selection, e.g.: columns(1 to 3).
Review comment:
`columns(1 to 3)` -> `withColumns(1 to 3)`
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