Possible typos in the #12.1.1 examples
The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/12/textsearch-intro.html
Description:
SELECT title || ' ' || author || ' ' || abstract || ' ' || body AS
document
FROM messages
WHERE mid = 12;
Seems like here the example missed 'm' as an alias and a dot in the `where`
clause:
... messages m
... m.id = 12;
SELECT m.title || ' ' || m.author || ' ' || m.abstract || ' ' || d.body AS
document
FROM messages m, docs d
WHERE mid = did AND mid = 12;
Possibly, the example missed dots:
... m.id = d.id AND m.id = 12;
Thanks!
On Mon, Mar 02, 2020 at 03:38:01PM +0000, PG Doc comments form wrote:
Seems like here the example missed 'm' as an alias and a dot in the `where`
clause:
... messages m
... m.id = 12;
This query is valid as-is.
SELECT m.title || ' ' || m.author || ' ' || m.abstract || ' ' || d.body AS
document
FROM messages m, docs d
WHERE mid = did AND mid = 12;Possibly, the example missed dots:
... m.id = d.id AND m.id = 12;
This one is actually valid as well, as long as both relations don't
use the same column names, but I can see your point to add the aliases
to the quals of the WHERE clause to bring more clarity.
--
Michael
On Thu, Mar 5, 2020 at 04:45:23PM +0900, Michael Paquier wrote:
On Mon, Mar 02, 2020 at 03:38:01PM +0000, PG Doc comments form wrote:
Seems like here the example missed 'm' as an alias and a dot in the `where`
clause:
... messages m
... m.id = 12;This query is valid as-is.
SELECT m.title || ' ' || m.author || ' ' || m.abstract || ' ' || d.body AS
document
FROM messages m, docs d
WHERE mid = did AND mid = 12;Possibly, the example missed dots:
... m.id = d.id AND m.id = 12;This one is actually valid as well, as long as both relations don't
use the same column names, but I can see your point to add the aliases
to the quals of the WHERE clause to bring more clarity.
Agreed, alias added in all supported branches.
--
Bruce Momjian <bruce@momjian.us> https://momjian.us
EnterpriseDB https://enterprisedb.com
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