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_r276875770
##########
File path:
flink-table/flink-table-planner/src/main/java/org/apache/flink/table/expressions/rules/ResolverRules.java
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@@ -57,6 +57,11 @@
*/
public static final ResolverRule FLATTEN_STAR_REFERENCE = new
StarReferenceFlatteningRule();
+ /**
+ * Resolves columns functions to corresponding fields of inputs. See
{@link ExpandColumnsFunctionRule} for details.
+ */
+ public static final ResolverRule EXPAND_COLUMN_OPERATIONS = new
ExpandColumnsFunctionRule();
Review comment:
`EXPAND_COLUMN_OPERATIONS`->`EXPAND_COLUMNS_FUNCTION`
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