[PATCH v3 7/7] Handle pg_get_triggerdef default args in system_functions.sql

Modernize pg_get_triggerdef to use CREATE OR REPLACE FUNCTION to handle
the optional pretty argument.
---
 src/backend/catalog/system_functions.sql |  7 +++++++
 src/backend/utils/adt/ruleutils.c        | 14 --------------
 src/include/catalog/pg_proc.dat          |  5 +----
 src/include/catalog/pg_retired.dat       |  1 +
 4 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/src/backend/catalog/system_functions.sql b/src/backend/catalog/system_functions.sql
index a6f7cdf3a36..08b9b68d0cd 100644
--- a/src/backend/catalog/system_functions.sql
+++ b/src/backend/catalog/system_functions.sql
@@ -699,6 +699,13 @@ LANGUAGE INTERNAL
 PARALLEL SAFE
 AS 'pg_get_expr';
 
+CREATE OR REPLACE FUNCTION
+  pg_get_triggerdef(trigger oid, pretty bool DEFAULT false)
+RETURNS TEXT
+LANGUAGE INTERNAL
+PARALLEL SAFE
+AS 'pg_get_triggerdef';
+
 --
 -- The default permissions for functions mean that anyone can execute them.
 -- A number of functions shouldn't be executable by just anyone, but rather
diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c
index d87b361a093..598c916ddb6 100644
--- a/src/backend/utils/adt/ruleutils.c
+++ b/src/backend/utils/adt/ruleutils.c
@@ -807,20 +807,6 @@ pg_get_viewdef_worker(Oid viewoid, int prettyFlags, int wrapColumn)
  */
 Datum
 pg_get_triggerdef(PG_FUNCTION_ARGS)
-{
-	Oid			trigid = PG_GETARG_OID(0);
-	char	   *res;
-
-	res = pg_get_triggerdef_worker(trigid, false);
-
-	if (res == NULL)
-		PG_RETURN_NULL();
-
-	PG_RETURN_TEXT_P(string_to_text(res));
-}
-
-Datum
-pg_get_triggerdef_ext(PG_FUNCTION_ARGS)
 {
 	Oid			trigid = PG_GETARG_OID(0);
 	bool		pretty = PG_GETARG_BOOL(1);
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 4304ab220ba..bf00983b3ff 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -3983,9 +3983,6 @@
   proname => 'pg_get_partition_constraintdef', provolatile => 's',
   prorettype => 'text', proargtypes => 'oid',
   prosrc => 'pg_get_partition_constraintdef' },
-{ oid => '1662', descr => 'trigger description',
-  proname => 'pg_get_triggerdef', provolatile => 's', prorettype => 'text',
-  proargtypes => 'oid', prosrc => 'pg_get_triggerdef' },
 { oid => '1665', descr => 'name of sequence for a serial column',
   proname => 'pg_get_serial_sequence', provolatile => 's', prorettype => 'text',
   proargtypes => 'text text', prosrc => 'pg_get_serial_sequence' },
@@ -8551,7 +8548,7 @@
   prosrc => 'pg_timezone_names' },
 { oid => '2730', descr => 'trigger description with pretty-print option',
   proname => 'pg_get_triggerdef', provolatile => 's', prorettype => 'text',
-  proargtypes => 'oid bool', prosrc => 'pg_get_triggerdef_ext' },
+  proargtypes => 'oid bool', prosrc => 'pg_get_triggerdef' },
 
 # asynchronous notifications
 { oid => '3035',
diff --git a/src/include/catalog/pg_retired.dat b/src/include/catalog/pg_retired.dat
index 8b5f58850f6..46764648040 100644
--- a/src/include/catalog/pg_retired.dat
+++ b/src/include/catalog/pg_retired.dat
@@ -22,6 +22,7 @@
 { oid => '1640', proname => 'pg_get_viewdef' },
 { oid => '1641', proname => 'pg_get_viewdef' },
 { oid => '1643', proname => 'pg_get_indexdef' },
+{ oid => '1662', proname => 'pg_get_triggerdef' },
 { oid => '1716', proname => 'pg_get_expr' }
 
 ]
-- 
2.43.0


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