pgsql-server/src/backend/utils/time tqual.c

CVSROOT: /cvsroot
Module name: pgsql-server
Changes by: tgl(at)svr1(dot)postgresql(dot)org 03/09/21 21:47:23

Modified files:
src/backend/utils/time: tqual.c

Log message:
HeapTupleSatisfiesVacuum() needs to be more careful about the
difference between INSERT_IN_PROGRESS and DELETE_IN_PROGRESS for
tuples inserted and then deleted by a concurrent transaction.
Example of bug:
regression=# create table foo (f1 int);
CREATE TABLE
regression=# begin;
BEGIN
regression=# insert into foo values(1);
INSERT 195531 1
regression=# delete from foo;
DELETE 1
regression=# insert into foo values(1);
INSERT 195532 1
regression=# create unique index fooi on foo(f1);
ERROR: could not create unique index
DETAIL: Table contains duplicated values.