Avoid naming conflict between transactions.sql and namespace.sql.

Commits 681d9e462 et al added a test case in namespace.sql that
implicitly relied on there not being a table "public.abc".
However, the concurrently-run transactions.sql test creates precisely
such a table, so with the right timing you'd get a failure.
Creating a table named as generically as "abc" in a common schema
seems like bad practice, so fix this by changing the name of
transactions.sql's table.  (Compare 2cf8c7aa4.)

Marina Polyakova

Discussion: https://postgr.es/m/80d0201636665d82185942e7112257b4@postgrespro.ru

src/test/regress/expected/transactions.out

@@ -609,10 +609,10 @@ drop function inverse(int);
 -- performed in the aborted subtransaction
 begin;
 savepoint x;
-create table abc (a int);
+create table trans_abc (a int);
-insert into abc values (5);
+insert into trans_abc values (5);
-insert into abc values (10);
+insert into trans_abc values (10);
-declare foo cursor for select * from abc;
+declare foo cursor for select * from trans_abc;
 fetch from foo;
  a 
 ---
@@ -625,11 +625,11 @@ fetch from foo;
 ERROR:  cursor "foo" does not exist
 commit;
 begin;
-create table abc (a int);
+create table trans_abc (a int);
-insert into abc values (5);
+insert into trans_abc values (5);
-insert into abc values (10);
+insert into trans_abc values (10);
-insert into abc values (15);
+insert into trans_abc values (15);
-declare foo cursor for select * from abc;
+declare foo cursor for select * from trans_abc;
 fetch from foo;
  a 
 ---
@@ -698,7 +698,7 @@ COMMIT;
 DROP FUNCTION create_temp_tab();
 DROP FUNCTION invert(x float8);
 -- Tests for AND CHAIN
-CREATE TABLE abc (a int);
+CREATE TABLE trans_abc (a int);
 -- set nondefault value so we have something to override below
 SET default_transaction_read_only = on;
 START TRANSACTION ISOLATION LEVEL REPEATABLE READ, READ WRITE, DEFERRABLE;
@@ -720,8 +720,8 @@ SHOW transaction_deferrable;
  on
 (1 row)
 
-INSERT INTO abc VALUES (1);
+INSERT INTO trans_abc VALUES (1);
-INSERT INTO abc VALUES (2);
+INSERT INTO trans_abc VALUES (2);
 COMMIT AND CHAIN;  -- TBLOCK_END
 SHOW transaction_isolation;
  transaction_isolation 
@@ -741,11 +741,11 @@ SHOW transaction_deferrable;
  on
 (1 row)
 
-INSERT INTO abc VALUES ('error');
+INSERT INTO trans_abc VALUES ('error');
 ERROR:  invalid input syntax for type integer: "error"
-LINE 1: INSERT INTO abc VALUES ('error');
+LINE 1: INSERT INTO trans_abc VALUES ('error');
-                                ^
+                                      ^
-INSERT INTO abc VALUES (3);  -- check it's really aborted
+INSERT INTO trans_abc VALUES (3);  -- check it's really aborted
 ERROR:  current transaction is aborted, commands ignored until end of transaction block
 COMMIT AND CHAIN;  -- TBLOCK_ABORT_END
 SHOW transaction_isolation;
@@ -766,7 +766,7 @@ SHOW transaction_deferrable;
  on
 (1 row)
 
-INSERT INTO abc VALUES (4);
+INSERT INTO trans_abc VALUES (4);
 COMMIT;
 START TRANSACTION ISOLATION LEVEL REPEATABLE READ, READ WRITE, DEFERRABLE;
 SHOW transaction_isolation;
@@ -788,10 +788,10 @@ SHOW transaction_deferrable;
 (1 row)
 
 SAVEPOINT x;
-INSERT INTO abc VALUES ('error');
+INSERT INTO trans_abc VALUES ('error');
 ERROR:  invalid input syntax for type integer: "error"
-LINE 1: INSERT INTO abc VALUES ('error');
+LINE 1: INSERT INTO trans_abc VALUES ('error');
-                                ^
+                                      ^
 COMMIT AND CHAIN;  -- TBLOCK_ABORT_PENDING
 SHOW transaction_isolation;
  transaction_isolation 
@@ -811,7 +811,7 @@ SHOW transaction_deferrable;
  on
 (1 row)
 
-INSERT INTO abc VALUES (5);
+INSERT INTO trans_abc VALUES (5);
 COMMIT;
 START TRANSACTION ISOLATION LEVEL REPEATABLE READ, READ WRITE, DEFERRABLE;
 SHOW transaction_isolation;
@@ -873,7 +873,7 @@ SHOW transaction_deferrable;
  off
 (1 row)
 
-INSERT INTO abc VALUES (6);
+INSERT INTO trans_abc VALUES (6);
 ROLLBACK AND CHAIN;  -- TBLOCK_ABORT_PENDING
 SHOW transaction_isolation;
  transaction_isolation 
@@ -893,10 +893,10 @@ SHOW transaction_deferrable;
  off
 (1 row)
 
-INSERT INTO abc VALUES ('error');
+INSERT INTO trans_abc VALUES ('error');
 ERROR:  invalid input syntax for type integer: "error"
-LINE 1: INSERT INTO abc VALUES ('error');
+LINE 1: INSERT INTO trans_abc VALUES ('error');
-                                ^
+                                      ^
 ROLLBACK AND CHAIN;  -- TBLOCK_ABORT_END
 SHOW transaction_isolation;
  transaction_isolation 
@@ -922,7 +922,7 @@ COMMIT AND CHAIN;  -- error
 ERROR:  COMMIT AND CHAIN can only be used in transaction blocks
 ROLLBACK AND CHAIN;  -- error
 ERROR:  ROLLBACK AND CHAIN can only be used in transaction blocks
-SELECT * FROM abc ORDER BY 1;
+SELECT * FROM trans_abc ORDER BY 1;
  a 
 ---
  1
@@ -932,7 +932,7 @@ SELECT * FROM abc ORDER BY 1;
 (4 rows)
 
 RESET default_transaction_read_only;
-DROP TABLE abc;
+DROP TABLE trans_abc;
 -- Test assorted behaviors around the implicit transaction block created
 -- when multiple SQL commands are sent in a single Query message.  These
 -- tests rely on the fact that psql will not break SQL commands apart at a
@@ -1090,21 +1090,21 @@ SHOW transaction_read_only;
  off
 (1 row)
 
-CREATE TABLE abc (a int);
+CREATE TABLE trans_abc (a int);
 -- COMMIT/ROLLBACK + COMMIT/ROLLBACK AND CHAIN
-INSERT INTO abc VALUES (7)\; COMMIT\; INSERT INTO abc VALUES (8)\; COMMIT AND CHAIN;  -- 7 commit, 8 error
+INSERT INTO trans_abc VALUES (7)\; COMMIT\; INSERT INTO trans_abc VALUES (8)\; COMMIT AND CHAIN;  -- 7 commit, 8 error
 WARNING:  there is no transaction in progress
 ERROR:  COMMIT AND CHAIN can only be used in transaction blocks
-INSERT INTO abc VALUES (9)\; ROLLBACK\; INSERT INTO abc VALUES (10)\; ROLLBACK AND CHAIN;  -- 9 rollback, 10 error
+INSERT INTO trans_abc VALUES (9)\; ROLLBACK\; INSERT INTO trans_abc VALUES (10)\; ROLLBACK AND CHAIN;  -- 9 rollback, 10 error
 WARNING:  there is no transaction in progress
 ERROR:  ROLLBACK AND CHAIN can only be used in transaction blocks
 -- COMMIT/ROLLBACK AND CHAIN + COMMIT/ROLLBACK
-INSERT INTO abc VALUES (11)\; COMMIT AND CHAIN\; INSERT INTO abc VALUES (12)\; COMMIT;  -- 11 error, 12 not reached
+INSERT INTO trans_abc VALUES (11)\; COMMIT AND CHAIN\; INSERT INTO trans_abc VALUES (12)\; COMMIT;  -- 11 error, 12 not reached
 ERROR:  COMMIT AND CHAIN can only be used in transaction blocks
-INSERT INTO abc VALUES (13)\; ROLLBACK AND CHAIN\; INSERT INTO abc VALUES (14)\; ROLLBACK;  -- 13 error, 14 not reached
+INSERT INTO trans_abc VALUES (13)\; ROLLBACK AND CHAIN\; INSERT INTO trans_abc VALUES (14)\; ROLLBACK;  -- 13 error, 14 not reached
 ERROR:  ROLLBACK AND CHAIN can only be used in transaction blocks
 -- START TRANSACTION + COMMIT/ROLLBACK AND CHAIN
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (15)\; COMMIT AND CHAIN;  -- 15 ok
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (15)\; COMMIT AND CHAIN;  -- 15 ok
 SHOW transaction_isolation;  -- transaction is active at this point
  transaction_isolation 
 -----------------------
@@ -1112,7 +1112,7 @@ SHOW transaction_isolation;  -- transaction is active at this point
 (1 row)
 
 COMMIT;
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (16)\; ROLLBACK AND CHAIN;  -- 16 ok
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (16)\; ROLLBACK AND CHAIN;  -- 16 ok
 SHOW transaction_isolation;  -- transaction is active at this point
  transaction_isolation 
 -----------------------
@@ -1122,7 +1122,7 @@ SHOW transaction_isolation;  -- transaction is active at this point
 ROLLBACK;
 SET default_transaction_isolation = 'read committed';
 -- START TRANSACTION + COMMIT/ROLLBACK + COMMIT/ROLLBACK AND CHAIN
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (17)\; COMMIT\; INSERT INTO abc VALUES (18)\; COMMIT AND CHAIN;  -- 17 commit, 18 error
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (17)\; COMMIT\; INSERT INTO trans_abc VALUES (18)\; COMMIT AND CHAIN;  -- 17 commit, 18 error
 ERROR:  COMMIT AND CHAIN can only be used in transaction blocks
 SHOW transaction_isolation;  -- out of transaction block
  transaction_isolation 
@@ -1130,7 +1130,7 @@ SHOW transaction_isolation;  -- out of transaction block
  read committed
 (1 row)
 
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (19)\; ROLLBACK\; INSERT INTO abc VALUES (20)\; ROLLBACK AND CHAIN;  -- 19 rollback, 20 error
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (19)\; ROLLBACK\; INSERT INTO trans_abc VALUES (20)\; ROLLBACK AND CHAIN;  -- 19 rollback, 20 error
 ERROR:  ROLLBACK AND CHAIN can only be used in transaction blocks
 SHOW transaction_isolation;  -- out of transaction block
  transaction_isolation 
@@ -1139,7 +1139,7 @@ SHOW transaction_isolation;  -- out of transaction block
 (1 row)
 
 RESET default_transaction_isolation;
-SELECT * FROM abc ORDER BY 1;
+SELECT * FROM trans_abc ORDER BY 1;
  a  
 ----
   7
@@ -1147,7 +1147,7 @@ SELECT * FROM abc ORDER BY 1;
  17
 (3 rows)
 
-DROP TABLE abc;
+DROP TABLE trans_abc;
 -- Test for successful cleanup of an aborted transaction at session exit.
 -- THIS MUST BE THE LAST TEST IN THIS FILE.
 begin;

src/test/regress/sql/transactions.sql

@@ -378,10 +378,10 @@ drop function inverse(int);
 begin;
 
 savepoint x;
-create table abc (a int);
+create table trans_abc (a int);
-insert into abc values (5);
+insert into trans_abc values (5);
-insert into abc values (10);
+insert into trans_abc values (10);
-declare foo cursor for select * from abc;
+declare foo cursor for select * from trans_abc;
 fetch from foo;
 rollback to x;
 
@@ -391,11 +391,11 @@ commit;
 
 begin;
 
-create table abc (a int);
+create table trans_abc (a int);
-insert into abc values (5);
+insert into trans_abc values (5);
-insert into abc values (10);
+insert into trans_abc values (10);
-insert into abc values (15);
+insert into trans_abc values (15);
-declare foo cursor for select * from abc;
+declare foo cursor for select * from trans_abc;
 
 fetch from foo;
 
@@ -441,7 +441,7 @@ DROP FUNCTION invert(x float8);
 
 -- Tests for AND CHAIN
 
-CREATE TABLE abc (a int);
+CREATE TABLE trans_abc (a int);
 
 -- set nondefault value so we have something to override below
 SET default_transaction_read_only = on;
@@ -450,19 +450,19 @@ START TRANSACTION ISOLATION LEVEL REPEATABLE READ, READ WRITE, DEFERRABLE;
 SHOW transaction_isolation;
 SHOW transaction_read_only;
 SHOW transaction_deferrable;
-INSERT INTO abc VALUES (1);
+INSERT INTO trans_abc VALUES (1);
-INSERT INTO abc VALUES (2);
+INSERT INTO trans_abc VALUES (2);
 COMMIT AND CHAIN;  -- TBLOCK_END
 SHOW transaction_isolation;
 SHOW transaction_read_only;
 SHOW transaction_deferrable;
-INSERT INTO abc VALUES ('error');
+INSERT INTO trans_abc VALUES ('error');
-INSERT INTO abc VALUES (3);  -- check it's really aborted
+INSERT INTO trans_abc VALUES (3);  -- check it's really aborted
 COMMIT AND CHAIN;  -- TBLOCK_ABORT_END
 SHOW transaction_isolation;
 SHOW transaction_read_only;
 SHOW transaction_deferrable;
-INSERT INTO abc VALUES (4);
+INSERT INTO trans_abc VALUES (4);
 COMMIT;
 
 START TRANSACTION ISOLATION LEVEL REPEATABLE READ, READ WRITE, DEFERRABLE;
@@ -470,12 +470,12 @@ SHOW transaction_isolation;
 SHOW transaction_read_only;
 SHOW transaction_deferrable;
 SAVEPOINT x;
-INSERT INTO abc VALUES ('error');
+INSERT INTO trans_abc VALUES ('error');
 COMMIT AND CHAIN;  -- TBLOCK_ABORT_PENDING
 SHOW transaction_isolation;
 SHOW transaction_read_only;
 SHOW transaction_deferrable;
-INSERT INTO abc VALUES (5);
+INSERT INTO trans_abc VALUES (5);
 COMMIT;
 
 START TRANSACTION ISOLATION LEVEL REPEATABLE READ, READ WRITE, DEFERRABLE;
@@ -494,12 +494,12 @@ START TRANSACTION ISOLATION LEVEL SERIALIZABLE, READ WRITE, NOT DEFERRABLE;
 SHOW transaction_isolation;
 SHOW transaction_read_only;
 SHOW transaction_deferrable;
-INSERT INTO abc VALUES (6);
+INSERT INTO trans_abc VALUES (6);
 ROLLBACK AND CHAIN;  -- TBLOCK_ABORT_PENDING
 SHOW transaction_isolation;
 SHOW transaction_read_only;
 SHOW transaction_deferrable;
-INSERT INTO abc VALUES ('error');
+INSERT INTO trans_abc VALUES ('error');
 ROLLBACK AND CHAIN;  -- TBLOCK_ABORT_END
 SHOW transaction_isolation;
 SHOW transaction_read_only;
@@ -510,11 +510,11 @@ ROLLBACK;
 COMMIT AND CHAIN;  -- error
 ROLLBACK AND CHAIN;  -- error
 
-SELECT * FROM abc ORDER BY 1;
+SELECT * FROM trans_abc ORDER BY 1;
 
 RESET default_transaction_read_only;
 
-DROP TABLE abc;
+DROP TABLE trans_abc;
 
 
 -- Test assorted behaviors around the implicit transaction block created
@@ -579,39 +579,39 @@ SHOW transaction_read_only;
 SET TRANSACTION READ ONLY\; ROLLBACK AND CHAIN;  -- error
 SHOW transaction_read_only;
 
-CREATE TABLE abc (a int);
+CREATE TABLE trans_abc (a int);
 
 -- COMMIT/ROLLBACK + COMMIT/ROLLBACK AND CHAIN
-INSERT INTO abc VALUES (7)\; COMMIT\; INSERT INTO abc VALUES (8)\; COMMIT AND CHAIN;  -- 7 commit, 8 error
+INSERT INTO trans_abc VALUES (7)\; COMMIT\; INSERT INTO trans_abc VALUES (8)\; COMMIT AND CHAIN;  -- 7 commit, 8 error
-INSERT INTO abc VALUES (9)\; ROLLBACK\; INSERT INTO abc VALUES (10)\; ROLLBACK AND CHAIN;  -- 9 rollback, 10 error
+INSERT INTO trans_abc VALUES (9)\; ROLLBACK\; INSERT INTO trans_abc VALUES (10)\; ROLLBACK AND CHAIN;  -- 9 rollback, 10 error
 
 -- COMMIT/ROLLBACK AND CHAIN + COMMIT/ROLLBACK
-INSERT INTO abc VALUES (11)\; COMMIT AND CHAIN\; INSERT INTO abc VALUES (12)\; COMMIT;  -- 11 error, 12 not reached
+INSERT INTO trans_abc VALUES (11)\; COMMIT AND CHAIN\; INSERT INTO trans_abc VALUES (12)\; COMMIT;  -- 11 error, 12 not reached
-INSERT INTO abc VALUES (13)\; ROLLBACK AND CHAIN\; INSERT INTO abc VALUES (14)\; ROLLBACK;  -- 13 error, 14 not reached
+INSERT INTO trans_abc VALUES (13)\; ROLLBACK AND CHAIN\; INSERT INTO trans_abc VALUES (14)\; ROLLBACK;  -- 13 error, 14 not reached
 
 -- START TRANSACTION + COMMIT/ROLLBACK AND CHAIN
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (15)\; COMMIT AND CHAIN;  -- 15 ok
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (15)\; COMMIT AND CHAIN;  -- 15 ok
 SHOW transaction_isolation;  -- transaction is active at this point
 COMMIT;
 
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (16)\; ROLLBACK AND CHAIN;  -- 16 ok
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (16)\; ROLLBACK AND CHAIN;  -- 16 ok
 SHOW transaction_isolation;  -- transaction is active at this point
 ROLLBACK;
 
 SET default_transaction_isolation = 'read committed';
 
 -- START TRANSACTION + COMMIT/ROLLBACK + COMMIT/ROLLBACK AND CHAIN
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (17)\; COMMIT\; INSERT INTO abc VALUES (18)\; COMMIT AND CHAIN;  -- 17 commit, 18 error
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (17)\; COMMIT\; INSERT INTO trans_abc VALUES (18)\; COMMIT AND CHAIN;  -- 17 commit, 18 error
 SHOW transaction_isolation;  -- out of transaction block
 
-START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO abc VALUES (19)\; ROLLBACK\; INSERT INTO abc VALUES (20)\; ROLLBACK AND CHAIN;  -- 19 rollback, 20 error
+START TRANSACTION ISOLATION LEVEL REPEATABLE READ\; INSERT INTO trans_abc VALUES (19)\; ROLLBACK\; INSERT INTO trans_abc VALUES (20)\; ROLLBACK AND CHAIN;  -- 19 rollback, 20 error
 SHOW transaction_isolation;  -- out of transaction block
 
 RESET default_transaction_isolation;
 
-SELECT * FROM abc ORDER BY 1;
+SELECT * FROM trans_abc ORDER BY 1;
 
-DROP TABLE abc;
+DROP TABLE trans_abc;
 
 
 -- Test for successful cleanup of an aborted transaction at session exit.