Use TSConfigRelationId in AlterTSConfiguration()

When we are altering a text search configuration, we are getting the
tuple from pg_ts_config and using its OID, so use TSConfigRelationId
when invoking any post-alter hooks and setting the object address.

Further, in the functions called from AlterTSConfiguration(), we're
saving information about the command via
EventTriggerCollectAlterTSConfig(), so we should be setting
commandCollected to true.  Also add a regression test to
test_ddl_deparse for ALTER TEXT SEARCH CONFIGURATION.

Author: Artur Zakirov, a few additional comments by me
Discussion: https://www.postgresql.org/message-id/57a71eba-f2c7-e7fd-6fc0-2126ec0b39bd%40postgrespro.ru

Back-patch the fix for the InvokeObjectPostAlterHook() call to 9.3 where
it was introduced, and the fix for the ObjectAddressSet() call and
setting commandCollected to true to 9.5 where those changes to
ProcessUtilitySlow() were introduced.

5 files changed, 26 insertions, 3 deletions

diff --git a/src/backend/commands/tsearchcmds.c b/src/backend/commands/tsearchcmds.c
index b24011371c7..2b84848cf5f 100644
--- a/src/backend/commands/tsearchcmds.c
+++ b/src/backend/commands/tsearchcmds.c
@@ -1215,10 +1215,10 @@ AlterTSConfiguration(AlterTSConfigurationStmt *stmt)
 	/* Update dependencies */
 	makeConfigurationDependencies(tup, true, relMap);
 
-	InvokeObjectPostAlterHook(TSConfigMapRelationId,
+	InvokeObjectPostAlterHook(TSConfigRelationId,
 							  HeapTupleGetOid(tup), 0);
 
-	ObjectAddressSet(address, TSConfigMapRelationId, cfgId);
+	ObjectAddressSet(address, TSConfigRelationId, cfgId);
 
 	heap_close(relMap, RowExclusiveLock);
 
diff --git a/src/backend/tcop/utility.c b/src/backend/tcop/utility.c
index fd4eff49074..2e89ad783a1 100644
--- a/src/backend/tcop/utility.c
+++ b/src/backend/tcop/utility.c
@@ -1479,7 +1479,13 @@ ProcessUtilitySlow(ParseState *pstate,
 				break;
 
 			case T_AlterTSConfigurationStmt:
-				address = AlterTSConfiguration((AlterTSConfigurationStmt *) parsetree);
+				AlterTSConfiguration((AlterTSConfigurationStmt *) parsetree);
+				/*
+				 * Commands are stashed in MakeConfigurationMapping and
+				 * DropConfigurationMapping, which are called from
+				 * AlterTSConfiguration
+				 */
+				commandCollected = true;
 				break;
 
 			case T_AlterTableMoveAllStmt:
diff --git a/src/test/modules/test_ddl_deparse/Makefile b/src/test/modules/test_ddl_deparse/Makefile
index 8ea6f39afd2..3a57a95c849 100644
--- a/src/test/modules/test_ddl_deparse/Makefile
+++ b/src/test/modules/test_ddl_deparse/Makefile
@@ -23,6 +23,7 @@ REGRESS = test_ddl_deparse \
 	comment_on \
 	alter_function \
 	alter_sequence \
+	alter_ts_config \
 	alter_type_enum \
 	opfamily \
 	defprivs \
diff --git a/src/test/modules/test_ddl_deparse/expected/alter_ts_config.out b/src/test/modules/test_ddl_deparse/expected/alter_ts_config.out
new file mode 100644
index 00000000000..afc352fc5ff
--- /dev/null
+++ b/src/test/modules/test_ddl_deparse/expected/alter_ts_config.out
@@ -0,0 +1,8 @@
+--
+-- ALTER TEXT SEARCH CONFIGURATION
+--
+CREATE TEXT SEARCH CONFIGURATION en (copy=english);
+NOTICE:  DDL test: type simple, tag CREATE TEXT SEARCH CONFIGURATION
+ALTER TEXT SEARCH CONFIGURATION en
+  ALTER MAPPING FOR host, email, url, sfloat WITH simple;
+NOTICE:  DDL test: type alter text search configuration, tag ALTER TEXT SEARCH CONFIGURATION
diff --git a/src/test/modules/test_ddl_deparse/sql/alter_ts_config.sql b/src/test/modules/test_ddl_deparse/sql/alter_ts_config.sql
new file mode 100644
index 00000000000..ac13e21ddad
--- /dev/null
+++ b/src/test/modules/test_ddl_deparse/sql/alter_ts_config.sql
@@ -0,0 +1,8 @@
+--
+-- ALTER TEXT SEARCH CONFIGURATION
+--
+
+CREATE TEXT SEARCH CONFIGURATION en (copy=english);
+
+ALTER TEXT SEARCH CONFIGURATION en
+  ALTER MAPPING FOR host, email, url, sfloat WITH simple;