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

@@ -571,10 +571,10 @@ 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 
 ---
@@ -587,11 +587,11 @@ 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 
 ---
@@ -660,7 +660,7 @@ 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;
@@ -682,8 +682,8 @@ 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 
@@ -703,11 +703,11 @@ 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;
@@ -728,7 +728,7 @@ 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;
@@ -750,10 +750,10 @@ 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 
@@ -773,7 +773,7 @@ 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;
@@ -835,7 +835,7 @@ 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 
@@ -855,10 +855,10 @@ 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 
@@ -884,7 +884,7 @@ 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
@@ -894,7 +894,7 @@ 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
@@ -996,21 +996,21 @@ 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 
 -----------------------
@@ -1018,7 +1018,7 @@ 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 
 -----------------------
@@ -1027,7 +1027,7 @@ SHOW transaction_isolation;  -- transaction is active at this point
 
 ROLLBACK;
 -- 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 
@@ -1035,7 +1035,7 @@ 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 
@@ -1043,7 +1043,7 @@ SHOW transaction_isolation;  -- out of transaction block
  read committed
 (1 row)
 
-SELECT * FROM abc ORDER BY 1;
+SELECT * FROM trans_abc ORDER BY 1;
  a  
 ----
   7
@@ -1051,7 +1051,7 @@ 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

@@ -358,10 +358,10 @@ 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;
 
@@ -371,11 +371,11 @@ 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;
 
@@ -421,7 +421,7 @@ 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;
@@ -430,19 +430,19 @@ 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;
@@ -450,12 +450,12 @@ 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;
@@ -474,12 +474,12 @@ 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;
@@ -490,11 +490,11 @@ 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
@@ -559,35 +559,35 @@ 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;
 
 -- 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
 
-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.