Hello,
COMMIT AND CHAIN in implicit block leaves blockState as TBLOCK_STARTED,
which doesn't trigger the chaining. but ROLLBACK AND CHAIN sets the
blockState into TBLOCK_ABORT_PENDING, so the chaining is triggered.
I think disabling s->chain beforehand should do the desired behavior.
Patch applies with "patch", although "git apply" complained because of
CRLF line terminations forced by the octet-stream mime type.
Patch compiles cleanly. Make check ok.
Patch works for me, and solution seems appropriate. It should be committed
for pg 12.0.
There could be a test added in "regress/sql/transactions.sql", I'd suggest
something like:
-- implicit transaction and not chained.
COMMIT AND CHAIN;
COMMIT;
ROLLBACK AND CHAIN;
ROLLBACK;
which should show the appropriate "no transaction in progress" warnings.
Doc could be made a little clearer about what to expect when there is no
explicit transaction in progress.
--
Fabien.
