| From: | fn ln <emuser20140816(at)gmail(dot)com> |
|---|---|
| To: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
| Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, Andres Freund <andres(at)anarazel(dot)de>, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, PostgreSQL Developers <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: BUG #15977: Inconsistent behavior in chained transactions |
| Date: | 2019-09-07 09:58:20 |
| Message-ID: | CA+99BHqSVBpJZ9pD=QczBs5L8KfuAvi3rYkKRbXXNE0cADoB+A@mail.gmail.com |
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| Lists: | pgsql-bugs pgsql-hackers |
> Looking at the latest patch, the comment blocks on top of TBLOCK_STARTED
> and TBLOCK_IMPLICIT_INPROGRESS in EndTransactionBlock() need an update
> to mention the difference of behavior with chained transactions. And
> the same comment rework should be done in UserAbortTransactionBlock()
> for TBLOCK_IMPLICIT_INPROGRESS/TBLOCK_STARTED?
I made another patch for that.
I don't have much confidence with my English spelling so further
improvements may be needed.
> If it is too much a change and potential regression, then I think that the
> "and chain" variants should be consistent and just raise warnings.
We don't have an exact answer for implicit transaction chaining behavior
yet.
So I think it's better to disable this feature until someone discovers the
use cases for this.
Permitting AND CHAIN without a detailed specification might cause troubles
in future.
| Attachment | Content-Type | Size |
|---|---|---|
| disable-implicit-transaction-chaining-v5.patch | application/octet-stream | 5.1 KB |
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