matriv commented on a change in pull request #18858:
URL: https://github.com/apache/flink/pull/18858#discussion_r812629262
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File path:
flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/BuiltInFunctionDefinition.java
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@@ -177,8 +177,9 @@ public String toString() {
// Shared with BuiltInSqlOperator and BuiltInSqlFunction in planner
//
--------------------------------------------------------------------------------------------
+ // note that for SQL operators the name can contain spaces and dollar signs
private static final Pattern INTERNAL_NAME_PATTERN =
- Pattern.compile("\\$[A-Z0-9_]+\\$[1-9][0-9]*");
+ Pattern.compile("\\$[A-Z0-9_ $]+\\$[1-9][0-9]*");
Review comment:
Makes sense.
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