Fix DDL deparse of CREATE OPERATOR CLASS

When an implicit operator family is created, it wasn't getting reported.
Make it do so.

This has always been missing.  Backpatch to 10.

Author: Masahiko Sawada <sawada.mshk@gmail.com>
Reported-by: Leslie LEMAIRE <leslie.lemaire@developpement-durable.gouv.fr>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Reviewed-by: Michael Paquiër <michael@paquier.xyz>
Discussion: https://postgr.es/m/f74d69e151b22171e8829551b1159e77@developpement-durable.gouv.fr

src/backend/commands/opclasscmds.c

@@ -240,7 +240,8 @@ get_opclass_oid(Oid amID, List *opclassname, bool missing_ok)
  * Caller must have done permissions checks etc. already.
  */
 static ObjectAddress
-CreateOpFamily(const char *amname, const char *opfname, Oid namespaceoid, Oid amoid)
+CreateOpFamily(CreateOpFamilyStmt *stmt, const char *opfname,
+			   Oid namespaceoid, Oid amoid)
 {
 	Oid			opfamilyoid;
 	Relation	rel;
@@ -264,7 +265,7 @@ CreateOpFamily(const char *amname, const char *opfname, Oid namespaceoid, Oid am
 		ereport(ERROR,
 				(errcode(ERRCODE_DUPLICATE_OBJECT),
 				 errmsg("operator family \"%s\" for access method \"%s\" already exists",
-						opfname, amname)));
+						opfname, stmt->amname)));
 
 	/*
 	 * Okay, let's create the pg_opfamily entry.
@@ -312,6 +313,10 @@ CreateOpFamily(const char *amname, const char *opfname, Oid namespaceoid, Oid am
 	/* dependency on extension */
 	recordDependencyOnCurrentExtension(&myself, false);
 
+	/* Report the new operator family to possibly interested event triggers */
+	EventTriggerCollectSimpleCommand(myself, InvalidObjectAddress,
+									 (Node *) stmt);
+
 	/* Post creation hook for new operator family */
 	InvokeObjectPostCreateHook(OperatorFamilyRelationId, opfamilyoid, 0);
 
@@ -447,13 +452,17 @@ DefineOpClass(CreateOpClassStmt *stmt)
 		}
 		else
 		{
+			CreateOpFamilyStmt *opfstmt;
 			ObjectAddress tmpAddr;
 
+			opfstmt = makeNode(CreateOpFamilyStmt);
+			opfstmt->opfamilyname = stmt->opclassname;
+			opfstmt->amname = stmt->amname;
+
 			/*
 			 * Create it ... again no need for more permissions ...
 			 */
-			tmpAddr = CreateOpFamily(stmt->amname, opcname,
-									 namespaceoid, amoid);
+			tmpAddr = CreateOpFamily(opfstmt, opcname, namespaceoid, amoid);
 			opfamilyoid = tmpAddr.objectId;
 		}
 	}
@@ -792,7 +801,7 @@ DefineOpFamily(CreateOpFamilyStmt *stmt)
 				 errmsg("must be superuser to create an operator family")));
 
 	/* Insert pg_opfamily catalog entry */
-	return CreateOpFamily(stmt->amname, opfname, namespaceoid, amoid);
+	return CreateOpFamily(stmt, opfname, namespaceoid, amoid);
 }
 
 

src/backend/tcop/utility.c

@@ -1713,6 +1713,12 @@ ProcessUtilitySlow(ParseState *pstate,
 
 			case T_CreateOpFamilyStmt:
 				address = DefineOpFamily((CreateOpFamilyStmt *) parsetree);
+
+				/*
+				 * DefineOpFamily calls EventTriggerCollectSimpleCommand
+				 * directly.
+				 */
+				commandCollected = true;
 				break;
 
 			case T_CreateTransformStmt:

src/test/modules/test_ddl_deparse/expected/opfamily.out

@@ -64,4 +64,5 @@ NOTICE:  DDL test: type simple, tag CREATE OPERATOR
 create operator class ctype_hash_ops
   default for type ctype using hash as
   operator 1 =(ctype, ctype);
+NOTICE:  DDL test: type simple, tag CREATE OPERATOR FAMILY
 NOTICE:  DDL test: type create operator class, tag CREATE OPERATOR CLASS

src/test/regress/expected/event_trigger.out

@@ -476,6 +476,11 @@ NOTICE:  NORMAL: orig=f normal=t istemp=f type=table identity=evttrig.part_10_15
 NOTICE:  NORMAL: orig=f normal=t istemp=f type=table identity=evttrig.part_15_20 name={evttrig,part_15_20} args={}
 DROP TABLE a_temp_tbl;
 NOTICE:  NORMAL: orig=t normal=f istemp=t type=table identity=pg_temp.a_temp_tbl name={pg_temp,a_temp_tbl} args={}
+-- CREATE OPERATOR CLASS without FAMILY clause should report
+-- both CREATE OPERATOR FAMILY and CREATE OPERATOR CLASS
+CREATE OPERATOR CLASS evttrigopclass FOR TYPE int USING btree AS STORAGE int;
+NOTICE:  END: command_tag=CREATE OPERATOR FAMILY type=operator family identity=public.evttrigopclass USING btree
+NOTICE:  END: command_tag=CREATE OPERATOR CLASS type=operator class identity=public.evttrigopclass USING btree
 DROP EVENT TRIGGER regress_event_trigger_report_dropped;
 DROP EVENT TRIGGER regress_event_trigger_report_end;
 -- only allowed from within an event trigger function, should fail

src/test/regress/sql/event_trigger.sql

@@ -337,6 +337,10 @@ DROP INDEX evttrig.one_idx;
 DROP SCHEMA evttrig CASCADE;
 DROP TABLE a_temp_tbl;
 
+-- CREATE OPERATOR CLASS without FAMILY clause should report
+-- both CREATE OPERATOR FAMILY and CREATE OPERATOR CLASS
+CREATE OPERATOR CLASS evttrigopclass FOR TYPE int USING btree AS STORAGE int;
+
 DROP EVENT TRIGGER regress_event_trigger_report_dropped;
 DROP EVENT TRIGGER regress_event_trigger_report_end;