>> CI AI indexes are much bigger because of ICU implementation of index
key derivation.
Compareing those icu depending collations, CI AI is smallest.
http://demo.icu-project.org/icu-bin/collation.html
Input
-------
ç
C
c
Sort case 1 with sort keys: strength=default (equivalent of collate
unicode)
Output
-------
c
2D , 05 , 05 .
C
2D , 05 , DC .
ç
2D , 45 A0 , 06 .
Sort case 2 with sort keys: strength=primary (equivalent of collate
unicode_ci_ai)
Output
-------
ç
2D .
C
2D .
c
2D .
Sort case 3 with sort keys: strength=secondary (equivalent of collate
unicode_ci)
Output
-------
C
2D , 05 .
c
2D , 05 .
ç
2D , 45 A0 .
Hiro
(2018/10/16 2:08), Dimitry Sibiryakov s...@ibphoenix.com
[firebird-support] wrote:
CI AI indexes are much bigger because of ICU implementation of index key
derivation.
You must increase page size of your database to return index depth to norm.
