| From: | PG Doc comments form <noreply(at)postgresql(dot)org> |
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| To: | pgsql-docs(at)lists(dot)postgresql(dot)org |
| Cc: | florian(dot)murat(dot)koch(at)gmail(dot)com |
| Subject: | Explanations not clear |
| Date: | 2024-05-06 17:59:40 |
| Message-ID: | 171501838010.704.2474442958031349608@wrigleys.postgresql.org |
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The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/16/collation.html
Description:
I created a collation specifying the ks-level3 setting and with
deterministic set to false. But when I compare "a_b" to "a-b" with this
collation I get false. According to the table 24.1 it should yield true.
Only after adding ka-shifted this comparison becomes true. The interactions
of the different options are not very clear. What is the difference for each
level when using ks without ka and with ka? The explanations for the options
kc and kb are also not very helpful. Also the role of deterministic = false
is not very good explained. It seems that the settings ks, ka and kc loose
any meaning with this setting.
Thank you very much
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