Parsed test spec with 2 sessions starting permutation: s1b s1delc1 s2sel s1c s2sel step s1b: BEGIN; step s1delc1: ALTER TABLE c1 NO INHERIT p; step s2sel: SELECT SUM(a) FROM p; step s1c: COMMIT; step s2sel: <... completed> sum 11 step s2sel: SELECT SUM(a) FROM p; sum 1 starting permutation: s1b s1delc1 s1addc2 s2sel s1c s2sel step s1b: BEGIN; step s1delc1: ALTER TABLE c1 NO INHERIT p; step s1addc2: ALTER TABLE c2 INHERIT p; step s2sel: SELECT SUM(a) FROM p; step s1c: COMMIT; step s2sel: <... completed> sum 11 step s2sel: SELECT SUM(a) FROM p; sum 101 starting permutation: s1b s1dropc1 s2sel s1c s2sel step s1b: BEGIN; step s1dropc1: DROP TABLE c1; step s2sel: SELECT SUM(a) FROM p; step s1c: COMMIT; step s2sel: <... completed> sum 1 step s2sel: SELECT SUM(a) FROM p; sum 1 starting permutation: s1b s1delc1 s1modc1a s2sel s1c s2sel step s1b: BEGIN; step s1delc1: ALTER TABLE c1 NO INHERIT p; step s1modc1a: ALTER TABLE c1 ALTER COLUMN a TYPE float; step s2sel: SELECT SUM(a) FROM p; step s1c: COMMIT; step s2sel: <... completed> error in steps s1c s2sel: ERROR: attribute "a" of relation "c1" does not match parent's type step s2sel: SELECT SUM(a) FROM p; sum 1