hequn8128 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_r271260519
##########
File path:
flink-table/flink-table-common/src/main/java/org/apache/flink/table/expressions/BuiltInFunctionDefinitions.java
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@@ -319,6 +319,14 @@
public static final FunctionDefinition CURRENT_ROW =
new FunctionDefinition("currentRow", OTHER_FUNCTION);
+ // columns
+ public static final FunctionDefinition COLUMNS =
+ new FunctionDefinition("columns", OTHER_FUNCTION);
+ public static final FunctionDefinition COLUMNS_RANGE =
+ new FunctionDefinition("columnsRange", OTHER_FUNCTION);
+ public static final FunctionDefinition COLUMNS_INVERSE_SELECTION =
+ new FunctionDefinition("columnsInverseSelection",
OTHER_FUNCTION);
+
Review comment:
Using `MINUS_PREFIX` directly is better. Thanks.
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