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_r276875614
##########
File path:
flink-table/flink-table-planner/src/main/java/org/apache/flink/table/expressions/ExpressionResolver.java
##########
@@ -54,15 +54,13 @@
import scala.Some;
-import static java.util.stream.Collectors.toList;
-
/**
* Tries to resolve all unresolved expressions such as {@link
UnresolvedReferenceExpression}
* or calls such as {@link BuiltInFunctionDefinitions#OVER}.
*
* <p>The default set of rules ({@link ExpressionResolver#getResolverRules()})
will resolve following references:
* <ul>
- * <li>flatten '*' to all fields of underlying inputs</li>
+ * <li>flatten '*' and columns operations to all fields of underlying
inputs</li>
Review comment:
`columns operations` -> `columns function` ?
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