1 DisOrder Database Versions
2 ==========================
4 If no _dbversion global preference is found then database version 1 is
5 assumed. Database versions 2 and above always have a _dbversion
8 Old database versions can be PARTIALLY emulated for testing purposes
9 by setting the undocument dbversion configuration item. Setting it on
10 a production system would be a terrible idea.
15 Path names are in UTF-8, but with no normalization applied: you get
16 whatever the filesystem gives you.
18 Search terms are split according to the old words() function.
19 - "/", ".", "+", "&", ":", "_" and "-" are considered to be separators
20 - anything in General_Category Cc, Cf, Co, Cs, Zl, Cp, Sz, Pe or Ps
21 is considered to be a separator
22 - anything else in General_Category Ll, Lm, Lo, Lt, Lu, Nd, Nl, No,
23 Sc, Sk, Sm or So is considered to be part of a word
24 - everything else is ignored
26 Search terms are case-folded by applying the CaseFolding.txt mapping,
27 without any attempt at normalization.
32 Path names are in UTF-8, normalized to NFC.
34 Search terms are split according to the default Unicode word boundary
37 Search terms are case-folded using the Unicode case-folding algorithm,
40 Things that haven't been done yet:
41 - undump support for new dbversion
42 - automatic upgrade from dbversion 1