Re: pg12 release notes - Mailing list pgsql-hackers

From Justin Pryzby
Subject Re: pg12 release notes
Date
Msg-id 20190510013449.GL3925@telsasoft.com
Whole thread Raw
In response to Re: pg12 release notes  (Bruce Momjian <bruce@momjian.us>)
Responses Re: pg12 release notes  (Bruce Momjian <bruce@momjian.us>)
List pgsql-hackers
On Thu, May 09, 2019 at 09:02:51PM -0400, Bruce Momjian wrote:
> These were all very helpful.  I adjusted your changes to create the
> attached applied patch.  URL updated:

Thanks.

> -Allow more comparisons with information_schema text columns to use indexes (Tom Lane)
> +Allow more use of indexes for text columns comparisons with information_schema columns (Tom Lane)

I think "columns" should not be plural..but it could be better still:

|Allow use of indexes for more comparisons with text columns of information_schema (Tom Lane)

Regarding this proposed change of mine:
-Btree indexes pg_upgraded from previous releases will not have this ordering.  This slightly reduces the maximum
lengthof indexed values.
 
+Btree indexes pg_upgraded from previous releases will not have this ordering.  This slightly reduces the maximum
permittedlength of indexed values.
 

I think "permitted" is important, since otherwise it sounds like maybe for
whatever values are being indexed, their maximum length is reduced by this
patch.  If you overthink it, you could decide that maybe that's happening due
to use of prefix/suffix truncation or something ..

Should this one be listed twice ?  I tried to tell if it was intentional but
couldn't decide..
249d64999 Add support TCP user timeout in libpq and the backend se

Justin



pgsql-hackers by date:

Previous
From: Bruce Momjian
Date:
Subject: Re: pg12 release notes
Next
From: Peter Geoghegan
Date:
Subject: Re: pg12 release notes