--- /dev/null
+Parsed test spec with 2 sessions
+
+starting permutation: s1_begin s1_tuplock1 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_tuplock1: SELECT * FROM multixact_conflict FOR KEY SHARE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+-----------------
+(0,1) |f |{"For Key Share"}
+(0,2) |f |{"For Key Share"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_tuplock2 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_tuplock2: SELECT * FROM multixact_conflict FOR SHARE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+-------------
+(0,1) |f |{"For Share"}
+(0,2) |f |{"For Share"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_tuplock3 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_tuplock3: SELECT * FROM multixact_conflict FOR NO KEY UPDATE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+---------------------
+(0,1) |f |{"For No Key Update"}
+(0,2) |f |{"For No Key Update"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_tuplock4 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_tuplock4: SELECT * FROM multixact_conflict FOR UPDATE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+--------------
+(0,1) |f |{"For Update"}
+(0,2) |f |{"For Update"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_updatea s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_updatea: UPDATE multixact_conflict SET a = 10 WHERE a = 1;
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+--------
+(0,1) |f |{Update}
+(1 row)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_updateb s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_updateb: UPDATE multixact_conflict SET b = 11 WHERE b = 4;
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+-----------------
+(0,2) |f |{"No Key Update"}
+(1 row)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_lcksvpt s1_tuplock1 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_lcksvpt: SELECT * FROM multixact_conflict FOR KEY SHARE; SAVEPOINT s;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s1_tuplock1: SELECT * FROM multixact_conflict FOR KEY SHARE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+-----------------
+(0,1) |f |{"For Key Share"}
+(0,2) |f |{"For Key Share"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_lcksvpt s1_tuplock2 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_lcksvpt: SELECT * FROM multixact_conflict FOR KEY SHARE; SAVEPOINT s;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s1_tuplock2: SELECT * FROM multixact_conflict FOR SHARE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+-------------------
+(0,1) |t |{"Key Share",Share}
+(0,2) |t |{"Key Share",Share}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_lcksvpt s1_tuplock3 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_lcksvpt: SELECT * FROM multixact_conflict FOR KEY SHARE; SAVEPOINT s;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s1_tuplock3: SELECT * FROM multixact_conflict FOR NO KEY UPDATE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+---------------------------------
+(0,1) |t |{"Key Share","For No Key Update"}
+(0,2) |t |{"Key Share","For No Key Update"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_lcksvpt s1_tuplock4 s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_lcksvpt: SELECT * FROM multixact_conflict FOR KEY SHARE; SAVEPOINT s;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s1_tuplock4: SELECT * FROM multixact_conflict FOR UPDATE;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+--------------------------
+(0,1) |t |{"Key Share","For Update"}
+(0,2) |t |{"Key Share","For Update"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_lcksvpt s1_updatea s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_lcksvpt: SELECT * FROM multixact_conflict FOR KEY SHARE; SAVEPOINT s;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s1_updatea: UPDATE multixact_conflict SET a = 10 WHERE a = 1;
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+--------------------
+(0,1) |t |{"Key Share",Update}
+(0,2) |f |{"For Key Share"}
+(2 rows)
+
+step s1_commit: COMMIT;
+
+starting permutation: s1_begin s1_lcksvpt s1_updateb s2_rowlocks s1_commit
+step s1_begin: BEGIN;
+step s1_lcksvpt: SELECT * FROM multixact_conflict FOR KEY SHARE; SAVEPOINT s;
+a|b
+-+-
+1|2
+3|4
+(2 rows)
+
+step s1_updateb: UPDATE multixact_conflict SET b = 11 WHERE b = 4;
+step s2_rowlocks: SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict');
+locked_row|multi|modes
+----------+-----+-----------------------------
+(0,1) |f |{"For Key Share"}
+(0,2) |t |{"Key Share","No Key Update"}
+(2 rows)
+
+step s1_commit: COMMIT;
--- /dev/null
+# Tests for contrib/pgrowlocks
+
+setup {
+ CREATE TABLE multixact_conflict (a int PRIMARY KEY, b int);
+ INSERT INTO multixact_conflict VALUES (1, 2), (3, 4);
+}
+
+teardown {
+ DROP TABLE multixact_conflict;
+}
+
+session s1
+step s1_begin { BEGIN; }
+step s1_tuplock1 { SELECT * FROM multixact_conflict FOR KEY SHARE; }
+step s1_tuplock2 { SELECT * FROM multixact_conflict FOR SHARE; }
+step s1_tuplock3 { SELECT * FROM multixact_conflict FOR NO KEY UPDATE; }
+step s1_tuplock4 { SELECT * FROM multixact_conflict FOR UPDATE; }
+step s1_updatea { UPDATE multixact_conflict SET a = 10 WHERE a = 1; }
+step s1_updateb { UPDATE multixact_conflict SET b = 11 WHERE b = 4; }
+step s1_lcksvpt { SELECT * FROM multixact_conflict FOR KEY SHARE; SAVEPOINT s; }
+step s1_commit { COMMIT; }
+
+session s2
+step s2_rowlocks { SELECT locked_row, multi, modes FROM pgrowlocks('multixact_conflict'); }
+
+permutation s1_begin s1_tuplock1 s2_rowlocks s1_commit
+permutation s1_begin s1_tuplock2 s2_rowlocks s1_commit
+permutation s1_begin s1_tuplock3 s2_rowlocks s1_commit
+permutation s1_begin s1_tuplock4 s2_rowlocks s1_commit
+permutation s1_begin s1_updatea s2_rowlocks s1_commit
+permutation s1_begin s1_updateb s2_rowlocks s1_commit
+
+# test multixact cases using savepoints
+permutation s1_begin s1_lcksvpt s1_tuplock1 s2_rowlocks s1_commit
+permutation s1_begin s1_lcksvpt s1_tuplock2 s2_rowlocks s1_commit
+permutation s1_begin s1_lcksvpt s1_tuplock3 s2_rowlocks s1_commit
+permutation s1_begin s1_lcksvpt s1_tuplock4 s2_rowlocks s1_commit
+permutation s1_begin s1_lcksvpt s1_updatea s2_rowlocks s1_commit
+permutation s1_begin s1_lcksvpt s1_updateb s2_rowlocks s1_commit