-- This should fail, because the two transactions have a write-skew anomaly

INSERT INTO pxtest1 VALUES ('fff');

ERROR: could not serialize access due to read/write dependencies among transactions

DETAIL: Canceled on identification as a pivot, during write.

DETAIL:Reason code:Canceled on identification as a pivot, during write.

HINT: The transaction might succeed if retried.

PREPARE TRANSACTION 'foo5';

SELECT gid FROM pg_prepared_xacts;