JingsongLi commented on a change in pull request #10039: [FLINK-14262][table]
Support referencing function with fully/partially qualified names in SQL
URL: https://github.com/apache/flink/pull/10039#discussion_r343035254
##########
File path:
flink-table/flink-table-planner-blink/src/main/java/org/apache/flink/table/planner/catalog/FunctionCatalogOperatorTable.java
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@@ -184,4 +188,21 @@ private boolean isNotUserFunction(SqlFunctionCategory
category) {
public List<SqlOperator> getOperatorList() {
throw new UnsupportedOperationException("This should never be
called");
}
+
+ public static FunctionIdentifier toFunctionIdentifier(String[] names,
CatalogManager catalogManager) {
+ return names.length == 1 ?
+ FunctionIdentifier.of(names[0]) :
+ FunctionIdentifier.of(
+
catalogManager.qualifyIdentifier(UnresolvedIdentifier.of(names)));
+ }
+
+ public static SqlIdentifier createSqlIdentifier(CallExpression call,
UserDefinedFunction function) {
Review comment:
I will create a util class, because functions are not only user define.
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