luoyuxia commented on code in PR #22888:
URL: https://github.com/apache/flink/pull/22888#discussion_r1251429935


##########
flink-table/flink-sql-parser/src/main/codegen/includes/parserImpls.ftl:
##########
@@ -455,6 +455,46 @@ SqlShowFunctions SqlShowFunctions() :
     }
 }
 
+/**
+* Parses a show functions statement.
+* SHOW PROCEDURES [ ( FROM | IN ) [catalog_name.]database_name ] [ [NOT] (LIKE 
| ILIKE) pattern;
+*/
+SqlShowProcedures SqlShowProcedures() :
+{
+    String prep = null;
+    SqlIdentifier databaseName = null;
+    boolean notLike = false;
+    boolean isIlike = false;

Review Comment:
   I would like to let it to be a string, and then convert to `LikeTypeEnum` 
after sqlnode conversion phase.



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