VladPolskiy/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-08-05 18:54:32 +00:00
Code Issues Packages Projects Releases Wiki Activity

Clarify documentation for the initcap function

Browse Source 
This commit documents differences in the definition of word separators for
the initcap function between libc and ICU locale providers.
Backpatch to all supported branches.

Discussion: https://postgr.es/m/804cc10ef95d4d3b298e76b181fd9437%40postgrespro.ru
Author: Oleg Tselebrovskiy <o.tselebrovskiy@postgrespro.ru>
Backpatch-through: 13
This commit is contained in:
Alexander Korotkov
2025-07-29 10:41:13 +03:00
parent 637ead2e1a
commit 1fe9e3822c
1 changed files with 5 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
doc/src/sgml/func.sgml
View File

@ -3148,8 +3148,11 @@ SELECT NOT(ROW(table.*) IS NOT NULL) FROM TABLE; -- detect at least one null in
</para>
<para>
Converts the first letter of each word to upper case and the
rest to lower case. Words are sequences of alphanumeric
characters separated by non-alphanumeric characters.
rest to lower case. When using the <literal>libc</literal> locale
provider, words are sequences of alphanumeric characters separated
by non-alphanumeric characters; when using the ICU locale provider,
words are separated according to
<ulink url="https://www.unicode.org/reports/tr29/#Word_Boundaries">Unicode Standard Annex #29</ulink>.
</para>
<para>
<literal>initcap('hi THOMAS')</literal>