30.09.2014 19:19, Geoff Worboys wrote:
CREATE INDEX MyIndex1 ON MyTable1 (Field1, Field2);
where Field1 is VARCHAR(80)
Field2 is VARCHAR(255)
both use the database default CHARACTER SET WIN1252 with
collation WIN1252_NOCASE as defined like this:
CREATE COLLATION WIN1252_UNICODE
DYdusnfs IIRC, unicode derived case/accent insensitive collations use six bytes
DYdusnfs per character encoding. This gives us 2010 bytes which is pretty near
DYdusnfs the 1/4 page size. Given that some overhead should be taken into
DYdusnfs account, the key length may in fact overflow the
Dmitry Yemanov dim...@users.sourceforge.net [firebird-support] wrote:
IIRC, unicode derived case/accent insensitive collations use
six bytes per character encoding. This gives us 2010 bytes
which is pretty near the 1/4 page size. Given that some
overhead should be taken into account, the key
