From 08668da727f2da49c43806c994ab787980151401 Mon Sep 17 00:00:00 2001
From: "okbob@github.com" <okbob@github.com>
Date: Sun, 16 Jun 2024 15:52:38 +0200
Subject: [PATCH 3/3] set plpgsql.extra_errors to "none"

Purpose of previous commit was to run tests with active strict_expr_check.
Now, reset to default and revert all changes from previous commit.
---
 .../basic_archive/expected/basic_archive.out  |  4 +--
 contrib/basic_archive/sql/basic_archive.sql   |  4 +--
 src/pl/plpgsql/src/expected/plpgsql_array.out | 34 ++++++++-----------
 src/pl/plpgsql/src/pl_handler.c               |  4 +--
 src/pl/plpgsql/src/sql/plpgsql_array.sql      | 14 ++++----
 .../recovery/t/026_overwrite_contrecord.pl    |  4 +--
 src/test/regress/expected/alter_table.out     |  2 +-
 src/test/regress/expected/plancache.out       |  2 +-
 src/test/regress/expected/plpgsql.out         | 12 +++----
 src/test/regress/expected/stats_ext.out       |  2 +-
 src/test/regress/expected/transactions.out    |  4 +--
 src/test/regress/sql/alter_table.sql          |  2 +-
 src/test/regress/sql/plancache.sql            |  2 +-
 src/test/regress/sql/plpgsql.sql              | 12 +++----
 src/test/regress/sql/stats_ext.sql            |  2 +-
 src/test/regress/sql/transactions.sql         |  4 +--
 16 files changed, 52 insertions(+), 56 deletions(-)

diff --git a/contrib/basic_archive/expected/basic_archive.out b/contrib/basic_archive/expected/basic_archive.out
index 280ff3e022e..0015053e0f2 100644
--- a/contrib/basic_archive/expected/basic_archive.out
+++ b/contrib/basic_archive/expected/basic_archive.out
@@ -11,8 +11,8 @@ DECLARE
 	loops int := 0;
 BEGIN
 	LOOP
-		archived := (SELECT count(*) > 0 FROM pg_ls_dir('.', false, false) a
-			WHERE a ~ '^[0-9A-F]{24}$');
+		archived := count(*) > 0 FROM pg_ls_dir('.', false, false) a
+			WHERE a ~ '^[0-9A-F]{24}$';
 		IF archived OR loops > 120 * 10 THEN EXIT; END IF;
 		PERFORM pg_sleep(0.1);
 		loops := loops + 1;
diff --git a/contrib/basic_archive/sql/basic_archive.sql b/contrib/basic_archive/sql/basic_archive.sql
index 2c127a821f1..14e236d57ab 100644
--- a/contrib/basic_archive/sql/basic_archive.sql
+++ b/contrib/basic_archive/sql/basic_archive.sql
@@ -7,8 +7,8 @@ DECLARE
 	loops int := 0;
 BEGIN
 	LOOP
-		archived := (SELECT count(*) > 0 FROM pg_ls_dir('.', false, false) a
-			WHERE a ~ '^[0-9A-F]{24}$');
+		archived := count(*) > 0 FROM pg_ls_dir('.', false, false) a
+			WHERE a ~ '^[0-9A-F]{24}$';
 		IF archived OR loops > 120 * 10 THEN EXIT; END IF;
 		PERFORM pg_sleep(0.1);
 		loops := loops + 1;
diff --git a/src/pl/plpgsql/src/expected/plpgsql_array.out b/src/pl/plpgsql/src/expected/plpgsql_array.out
index caf07e834e5..4c6b3ce998a 100644
--- a/src/pl/plpgsql/src/expected/plpgsql_array.out
+++ b/src/pl/plpgsql/src/expected/plpgsql_array.out
@@ -50,7 +50,7 @@ do $$ declare a quadarray;
 begin a.c1[1].i := 11; raise notice 'a = %, a.c1[1].i = %', a, a.c1[1].i; end$$;
 NOTICE:  a = ("{""(,11)""}",), a.c1[1].i = 11
 do $$ declare a int[];
-begin a := (select array_agg(x) from (values(1),(2),(3)) v(x)); raise notice 'a = %', a; end$$;
+begin a := array_agg(x) from (values(1),(2),(3)) v(x); raise notice 'a = %', a; end$$;
 NOTICE:  a = {1,2,3}
 do $$ declare a int[] := array[1,2,3];
 begin
@@ -64,34 +64,30 @@ end$$;
 NOTICE:  a = {1,1,2,3,42,3,1,1,2,3,42,3}
 create temp table onecol as select array[1,2] as f1;
 do $$ declare a int[];
-begin a := (select f1 from onecol); raise notice 'a = %', a; end$$;
+begin a := f1 from onecol; raise notice 'a = %', a; end$$;
 NOTICE:  a = {1,2}
 do $$ declare a int[];
-begin a := (select * from onecol for update); raise notice 'a = %', a; end$$;
+begin a := * from onecol for update; raise notice 'a = %', a; end$$;
 NOTICE:  a = {1,2}
 -- error cases:
 do $$ declare a int[];
-begin a := (select from onecol); raise notice 'a = %', a; end$$;
-ERROR:  subquery must return only one column
-LINE 1: a := (select from onecol)
-             ^
-QUERY:  a := (select from onecol)
-CONTEXT:  PL/pgSQL function inline_code_block line 2 at assignment
+begin a := from onecol; raise notice 'a = %', a; end$$;
+ERROR:  assignment source returned 0 columns
+CONTEXT:  PL/pgSQL assignment "a := from onecol"
+PL/pgSQL function inline_code_block line 2 at assignment
 do $$ declare a int[];
-begin a := (select f1, f1 from onecol); raise notice 'a = %', a; end$$;
-ERROR:  subquery must return only one column
-LINE 1: a := (select f1, f1 from onecol)
-             ^
-QUERY:  a := (select f1, f1 from onecol)
-CONTEXT:  PL/pgSQL function inline_code_block line 2 at assignment
+begin a := f1, f1 from onecol; raise notice 'a = %', a; end$$;
+ERROR:  assignment source returned 2 columns
+CONTEXT:  PL/pgSQL assignment "a := f1, f1 from onecol"
+PL/pgSQL function inline_code_block line 2 at assignment
 insert into onecol values(array[11]);
 do $$ declare a int[];
-begin a := (select f1 from onecol); raise notice 'a = %', a; end$$;
-ERROR:  more than one row returned by a subquery used as an expression
-CONTEXT:  PL/pgSQL assignment "a := (select f1 from onecol)"
+begin a := f1 from onecol; raise notice 'a = %', a; end$$;
+ERROR:  query returned more than one row
+CONTEXT:  query: a := f1 from onecol
 PL/pgSQL function inline_code_block line 2 at assignment
 do $$ declare a int[];
-begin a := (select f1 from onecol limit 1); raise notice 'a = %', a; end$$;
+begin a := f1 from onecol limit 1; raise notice 'a = %', a; end$$;
 NOTICE:  a = {1,2}
 do $$ declare a real;
 begin a[1] := 2; raise notice 'a = %', a; end$$;
diff --git a/src/pl/plpgsql/src/pl_handler.c b/src/pl/plpgsql/src/pl_handler.c
index 11e4dd1b62c..b3ba3163e9a 100644
--- a/src/pl/plpgsql/src/pl_handler.c
+++ b/src/pl/plpgsql/src/pl_handler.c
@@ -53,7 +53,7 @@ bool		plpgsql_check_asserts = true;
 static char *plpgsql_extra_warnings_string = NULL;
 static char *plpgsql_extra_errors_string = NULL;
 int			plpgsql_extra_warnings;
-int			plpgsql_extra_errors = PLPGSQL_XCHECK_STRICTEXPRCHECK;
+int			plpgsql_extra_errors;
 
 /* Hook for plugins */
 PLpgSQL_plugin **plpgsql_plugin_ptr = NULL;
@@ -196,7 +196,7 @@ _PG_init(void)
 							   gettext_noop("List of programming constructs that should produce an error."),
 							   NULL,
 							   &plpgsql_extra_errors_string,
-							   "strict_expr_check",
+							   "none",
 							   PGC_USERSET, GUC_LIST_INPUT,
 							   plpgsql_extra_checks_check_hook,
 							   plpgsql_extra_errors_assign_hook,
diff --git a/src/pl/plpgsql/src/sql/plpgsql_array.sql b/src/pl/plpgsql/src/sql/plpgsql_array.sql
index 09a76a8416b..da984a99414 100644
--- a/src/pl/plpgsql/src/sql/plpgsql_array.sql
+++ b/src/pl/plpgsql/src/sql/plpgsql_array.sql
@@ -46,7 +46,7 @@ do $$ declare a quadarray;
 begin a.c1[1].i := 11; raise notice 'a = %, a.c1[1].i = %', a, a.c1[1].i; end$$;
 
 do $$ declare a int[];
-begin a := (select array_agg(x) from (values(1),(2),(3)) v(x)); raise notice 'a = %', a; end$$;
+begin a := array_agg(x) from (values(1),(2),(3)) v(x); raise notice 'a = %', a; end$$;
 
 do $$ declare a int[] := array[1,2,3];
 begin
@@ -61,26 +61,26 @@ end$$;
 create temp table onecol as select array[1,2] as f1;
 
 do $$ declare a int[];
-begin a := (select f1 from onecol); raise notice 'a = %', a; end$$;
+begin a := f1 from onecol; raise notice 'a = %', a; end$$;
 
 do $$ declare a int[];
-begin a := (select * from onecol for update); raise notice 'a = %', a; end$$;
+begin a := * from onecol for update; raise notice 'a = %', a; end$$;
 
 -- error cases:
 
 do $$ declare a int[];
-begin a := (select from onecol); raise notice 'a = %', a; end$$;
+begin a := from onecol; raise notice 'a = %', a; end$$;
 
 do $$ declare a int[];
-begin a := (select f1, f1 from onecol); raise notice 'a = %', a; end$$;
+begin a := f1, f1 from onecol; raise notice 'a = %', a; end$$;
 
 insert into onecol values(array[11]);
 
 do $$ declare a int[];
-begin a := (select f1 from onecol); raise notice 'a = %', a; end$$;
+begin a := f1 from onecol; raise notice 'a = %', a; end$$;
 
 do $$ declare a int[];
-begin a := (select f1 from onecol limit 1); raise notice 'a = %', a; end$$;
+begin a := f1 from onecol limit 1; raise notice 'a = %', a; end$$;
 
 do $$ declare a real;
 begin a[1] := 2; raise notice 'a = %', a; end$$;
diff --git a/src/test/recovery/t/026_overwrite_contrecord.pl b/src/test/recovery/t/026_overwrite_contrecord.pl
index 7d004b04031..f408d4f69b6 100644
--- a/src/test/recovery/t/026_overwrite_contrecord.pl
+++ b/src/test/recovery/t/026_overwrite_contrecord.pl
@@ -33,7 +33,7 @@ $node->safe_psql(
 	'postgres', q{
 DO $$
 DECLARE
-    wal_segsize int := (SELECT setting::int FROM pg_settings WHERE name = 'wal_segment_size');
+    wal_segsize int := setting::int FROM pg_settings WHERE name = 'wal_segment_size';
     remain int;
     iters  int := 0;
 BEGIN
@@ -43,7 +43,7 @@ BEGIN
         from generate_series(1, 10) g;
 
         remain := wal_segsize - (pg_current_wal_insert_lsn() - '0/0') % wal_segsize;
-        IF (SELECT remain < 2 * setting::int from pg_settings where name = 'block_size') THEN
+        IF remain < 2 * setting::int from pg_settings where name = 'block_size' THEN
             RAISE log 'exiting after % iterations, % bytes to end of WAL segment', iters, remain;
             EXIT;
         END IF;
diff --git a/src/test/regress/expected/alter_table.out b/src/test/regress/expected/alter_table.out
index 5a0497c1859..08984dd98f1 100644
--- a/src/test/regress/expected/alter_table.out
+++ b/src/test/regress/expected/alter_table.out
@@ -2691,7 +2691,7 @@ LANGUAGE plpgsql AS $$
 DECLARE
     v_relfilenode oid;
 BEGIN
-    v_relfilenode := (SELECT relfilenode FROM pg_class WHERE oid = p_tablename);
+    v_relfilenode := relfilenode FROM pg_class WHERE oid = p_tablename;
 
     EXECUTE p_ddl;
 
diff --git a/src/test/regress/expected/plancache.out b/src/test/regress/expected/plancache.out
index faae99515f7..4e59188196c 100644
--- a/src/test/regress/expected/plancache.out
+++ b/src/test/regress/expected/plancache.out
@@ -139,7 +139,7 @@ create temp view v1 as
   select 2+2 as f1;
 create function cache_test_2() returns int as $$
 begin
-	return (select f1 from v1);
+	return f1 from v1;
 end$$ language plpgsql;
 select cache_test_2();
  cache_test_2 
diff --git a/src/test/regress/expected/plpgsql.out b/src/test/regress/expected/plpgsql.out
index 5545858c968..8f4f5cb1183 100644
--- a/src/test/regress/expected/plpgsql.out
+++ b/src/test/regress/expected/plpgsql.out
@@ -121,7 +121,7 @@ create trigger tg_room_ad after delete
 -- ************************************************************
 create function tg_wslot_biu() returns trigger as $$
 begin
-    if (select count(*) = 0 from Room where roomno = new.roomno) then
+    if count(*) = 0 from Room where roomno = new.roomno then
         raise exception 'Room % does not exist', new.roomno;
     end if;
     return new;
@@ -286,7 +286,7 @@ begin
         raise exception ''no manual manipulation of HSlot'';
     end if;
     if tg_op = ''UPDATE'' and new.hubname != old.hubname then
-	if (select count(*) > 0 from Hub where name = old.hubname) then
+	if count(*) > 0 from Hub where name = old.hubname then
 	    raise exception ''no manual manipulation of HSlot'';
 	end if;
     end if;
@@ -942,12 +942,12 @@ begin
 	return retval || pslot_backlink_view(psrec.slotlink);
     end if;
     if sltype = ''HS'' then
-        retval := (select comment from Hub H, HSlot HS
+        retval := comment from Hub H, HSlot HS
 			where HS.slotname = psrec.slotlink
-			  and H.name = HS.hubname);
+			  and H.name = HS.hubname;
         retval := retval || '' slot '';
-	retval := (select retval || slotno::text from HSlot
-			where slotname = psrec.slotlink);
+	retval := retval || slotno::text from HSlot
+			where slotname = psrec.slotlink;
 	return retval;
     end if;
     return psrec.slotlink;
diff --git a/src/test/regress/expected/stats_ext.out b/src/test/regress/expected/stats_ext.out
index 4d41e791ed1..6359e5fb689 100644
--- a/src/test/regress/expected/stats_ext.out
+++ b/src/test/regress/expected/stats_ext.out
@@ -350,7 +350,7 @@ CREATE STATISTICS tststats.s8 ON a, b FROM tststats.pt;
 CREATE STATISTICS tststats.s9 ON a, b FROM tststats.pt1;
 DO $$
 DECLARE
-	relname text := (SELECT reltoastrelid::regclass FROM pg_class WHERE oid = 'tststats.t'::regclass);
+	relname text := reltoastrelid::regclass FROM pg_class WHERE oid = 'tststats.t'::regclass;
 BEGIN
 	EXECUTE 'CREATE STATISTICS tststats.s10 ON a, b FROM ' || relname;
 EXCEPTION WHEN wrong_object_type THEN
diff --git a/src/test/regress/expected/transactions.out b/src/test/regress/expected/transactions.out
index 3458dad1749..7f5757e89c4 100644
--- a/src/test/regress/expected/transactions.out
+++ b/src/test/regress/expected/transactions.out
@@ -543,7 +543,7 @@ select * from xacttest;
 rollback;
 -- Now the same test with plpgsql (since it depends on SPI which is different)
 create or replace function max_xacttest() returns smallint language plpgsql as
-'begin return (select max(a) from xacttest); end' stable;
+'begin return max(a) from xacttest; end' stable;
 begin;
 update xacttest set a = max_xacttest() + 10 where a > 0;
 select * from xacttest;
@@ -558,7 +558,7 @@ select * from xacttest;
 
 rollback;
 create or replace function max_xacttest() returns smallint language plpgsql as
-'begin return (select max(a) from xacttest); end' volatile;
+'begin return max(a) from xacttest; end' volatile;
 begin;
 update xacttest set a = max_xacttest() + 10 where a > 0;
 select * from xacttest;
diff --git a/src/test/regress/sql/alter_table.sql b/src/test/regress/sql/alter_table.sql
index e857aed4a07..fc6e36d0e78 100644
--- a/src/test/regress/sql/alter_table.sql
+++ b/src/test/regress/sql/alter_table.sql
@@ -1678,7 +1678,7 @@ LANGUAGE plpgsql AS $$
 DECLARE
     v_relfilenode oid;
 BEGIN
-    v_relfilenode := (SELECT relfilenode FROM pg_class WHERE oid = p_tablename);
+    v_relfilenode := relfilenode FROM pg_class WHERE oid = p_tablename;
 
     EXECUTE p_ddl;
 
diff --git a/src/test/regress/sql/plancache.sql b/src/test/regress/sql/plancache.sql
index a3dbd93468e..4b2f11dcc64 100644
--- a/src/test/regress/sql/plancache.sql
+++ b/src/test/regress/sql/plancache.sql
@@ -81,7 +81,7 @@ create temp view v1 as
 
 create function cache_test_2() returns int as $$
 begin
-	return (select f1 from v1);
+	return f1 from v1;
 end$$ language plpgsql;
 
 select cache_test_2();
diff --git a/src/test/regress/sql/plpgsql.sql b/src/test/regress/sql/plpgsql.sql
index 238e0ec67f2..dd0d908d422 100644
--- a/src/test/regress/sql/plpgsql.sql
+++ b/src/test/regress/sql/plpgsql.sql
@@ -161,7 +161,7 @@ create trigger tg_room_ad after delete
 -- ************************************************************
 create function tg_wslot_biu() returns trigger as $$
 begin
-    if (select count(*) = 0 from Room where roomno = new.roomno) then
+    if count(*) = 0 from Room where roomno = new.roomno then
         raise exception 'Room % does not exist', new.roomno;
     end if;
     return new;
@@ -348,7 +348,7 @@ begin
         raise exception ''no manual manipulation of HSlot'';
     end if;
     if tg_op = ''UPDATE'' and new.hubname != old.hubname then
-	if (select count(*) > 0 from Hub where name = old.hubname) then
+	if count(*) > 0 from Hub where name = old.hubname then
 	    raise exception ''no manual manipulation of HSlot'';
 	end if;
     end if;
@@ -1071,12 +1071,12 @@ begin
 	return retval || pslot_backlink_view(psrec.slotlink);
     end if;
     if sltype = ''HS'' then
-        retval := (select comment from Hub H, HSlot HS
+        retval := comment from Hub H, HSlot HS
 			where HS.slotname = psrec.slotlink
-			  and H.name = HS.hubname);
+			  and H.name = HS.hubname;
         retval := retval || '' slot '';
-	retval := (select retval || slotno::text from HSlot
-			where slotname = psrec.slotlink);
+	retval := retval || slotno::text from HSlot
+			where slotname = psrec.slotlink;
 	return retval;
     end if;
     return psrec.slotlink;
diff --git a/src/test/regress/sql/stats_ext.sql b/src/test/regress/sql/stats_ext.sql
index 6c6e2719b7d..da4f2fe9c93 100644
--- a/src/test/regress/sql/stats_ext.sql
+++ b/src/test/regress/sql/stats_ext.sql
@@ -223,7 +223,7 @@ CREATE STATISTICS tststats.s8 ON a, b FROM tststats.pt;
 CREATE STATISTICS tststats.s9 ON a, b FROM tststats.pt1;
 DO $$
 DECLARE
-	relname text := (SELECT reltoastrelid::regclass FROM pg_class WHERE oid = 'tststats.t'::regclass);
+	relname text := reltoastrelid::regclass FROM pg_class WHERE oid = 'tststats.t'::regclass;
 BEGIN
 	EXECUTE 'CREATE STATISTICS tststats.s10 ON a, b FROM ' || relname;
 EXCEPTION WHEN wrong_object_type THEN
diff --git a/src/test/regress/sql/transactions.sql b/src/test/regress/sql/transactions.sql
index 1981955ac65..51ae1b31b30 100644
--- a/src/test/regress/sql/transactions.sql
+++ b/src/test/regress/sql/transactions.sql
@@ -320,7 +320,7 @@ rollback;
 
 -- Now the same test with plpgsql (since it depends on SPI which is different)
 create or replace function max_xacttest() returns smallint language plpgsql as
-'begin return (select max(a) from xacttest); end' stable;
+'begin return max(a) from xacttest; end' stable;
 
 begin;
 update xacttest set a = max_xacttest() + 10 where a > 0;
@@ -328,7 +328,7 @@ select * from xacttest;
 rollback;
 
 create or replace function max_xacttest() returns smallint language plpgsql as
-'begin return (select max(a) from xacttest); end' volatile;
+'begin return max(a) from xacttest; end' volatile;
 
 begin;
 update xacttest set a = max_xacttest() + 10 where a > 0;
-- 
2.50.1

