pg.ddx.io  pgsql-docs@postgresql.org mailing list archive  

help / color / mirror / Atom feed

Minor mistake in string functions docs - overlay
2+ messages / 2 participants
[nested] [flat]

* Minor mistake in string functions docs - overlay
@ 2014-12-11 15:51  Roy Tate <roy.l.tate@gmail.com>
  0 siblings, 1 reply; 2+ messages in thread

From: Roy Tate @ 2014-12-11 15:51 UTC (permalink / raw)
  To: pgsql-docs

I found a minor mistake in the documentation of string functions.

http://www.postgresql.org/docs/9.4/static/functions-string.html

In table 9-6 examples and results columns, look at the overlay function,
which has 4 x characters, but overlays 3 characters.  Please remove an x.

overlay('T*xxxx*as' placing 'hom' from 2 for 4)     Thomas

Please change the call to { *overlay('Txxxas'* ... }

Have a good day, and thanks for creating such amazing documentation.

Roy Tate

^ permalink  raw  reply  [nested|flat] 2+ messages in thread

* Re: Minor mistake in string functions docs - overlay
@ 2014-12-12 02:10  Tom Lane <tgl@sss.pgh.pa.us>
  parent: Roy Tate <roy.l.tate@gmail.com>
  0 siblings, 0 replies; 2+ messages in thread

From: Tom Lane @ 2014-12-12 02:10 UTC (permalink / raw)
  To: Roy Tate <roy.l.tate@gmail.com>; +Cc: pgsql-docs

Roy Tate <roy.l.tate@gmail.com> writes:
> I found a minor mistake in the documentation of string functions.
> http://www.postgresql.org/docs/9.4/static/functions-string.html

> In table 9-6 examples and results columns, look at the overlay function,
> which has 4 x characters, but overlays 3 characters.  Please remove an x.

Really?  The example works as stated for me:

regression=# select overlay('Txxxxas' placing 'hom' from 2 for 4);
 overlay 
---------
 Thomas
(1 row)

Removing an 'x' would give

regression=# select overlay('Txxxas' placing 'hom' from 2 for 4);
 overlay 
---------
 Thoms
(1 row)

I think the example is trying to point out that the replacement string
need not be the same length as what is replaced.

			regards, tom lane


-- 
Sent via pgsql-docs mailing list (pgsql-docs@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-docs



^ permalink  raw  reply  [nested|flat] 2+ messages in thread

end of thread, other threads:[~2014-12-12 02:10 UTC | newest]

Thread overview: 2+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2014-12-11 15:51 Minor mistake in string functions docs - overlay Roy Tate <roy.l.tate@gmail.com>
2014-12-12 02:10 ` Tom Lane <tgl@sss.pgh.pa.us>

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox