Re: bad choice of the word in sentence

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bruce Momjian <bruce@momjian.us>
Cc: anton.sidyakin@gmail.com, pgsql-docs@lists.postgresql.org
Date: 2023-06-24T01:16:39Z
Lists: pgsql-docs
Bruce Momjian <bruce@momjian.us> writes:
> On Thu, Jun 22, 2023 at 06:38:37PM +0000, PG Doc comments form wrote:
>> Quote:
>> "<...>When a transaction uses this isolation level, a SELECT query (without
>> a FOR UPDATE/SHARE clause) sees only data committed before the query began;
>> it never sees either uncommitted data or changes committed during query
>> execution by concurrent transactions. <...>"

>> Don't you think this is bad choice of the word, especially while speaking
>> about "commiting transactions" in very same sentence?

> No, the issue is only for committed transactions, not aborted ones.

I think this sentence is formally correct, but it is not very hard to
misparse.  Maybe a bit of re-ordering would help?  Like

	... it never sees either uncommitted data or changes committed by
	concurrent transactions during the query's execution.

			regards, tom lane



Commits

  1. Doc: minor wording adjustments in transaction isolation discussion.