Thanks for your answer Eric,Sandu About the first idea of Eric I have to say its correct for me when I do a test with another fts5 table with no huge rows but my database has that problem.And about the other possibility I tested that before to set "*"at the first and end of the match but I have got an error.Here if there is no problem I will attach an example Arabic text database if you search for 'أعلم*' it must find 83 rows but it will find 49 which is the same with "أعلم" results.and if you put "*"at the both sides you will get error.I don't know if I did something wrong during creation but this is all I have got.
On Tue, Sep 11, 2018 at 10:20 AM Sandu Buraga <buraga.sa...@gmail.com> wrote: > In Arabic you have a different direction of the text. Might be that the > reason? > > Sandu > > Eric Minbiole <eminbi...@gmail.com> schrieb am Di., 11. Sep. 2018, 00:23: > > > > SELECT rowid,text > > > FROM table > > > WHERE table MATCH 'أعلم*'; > > > > > > And I have to add this that my data is Arabic text. > > > > > > This method must find words that contains 'أعلم' but it doesn't. What > > > should I do now. > > > > > > > > I just tried this in SQLite version 3.24.0 on a Mac, and it seems to > work. > > Please see my example below. In particular, the first select doesn't > have a > > *, so it doesn't find the word. The second example includes a trailing *, > > so it performs a "starts with" search, and does find the match. (Note > that > > I simply doubled the letters of your original arabic text to make a > longer > > word.) > > > > MacBook-II:Programs eric$ ./sqlite3 > > > SQLite version 3.24.0 2018-06-04 19:24:41 > > > Enter ".help" for usage hints. > > > Connected to a transient in-memory database. > > > Use ".open FILENAME" to reopen on a persistent database. > > > sqlite> CREATE VIRTUAL TABLE fts USING fts5(doc); > > > sqlite> INSERT INTO fts (rowid, doc) VALUES (1, 'english text'); > > > sqlite> INSERT INTO fts (rowid, doc) VALUES (2, 'arabic أعلمأعلم'); > > > sqlite> SELECT rowid FROM fts WHERE fts MATCH 'أعلم'; > > > sqlite> SELECT rowid FROM fts WHERE fts MATCH 'أعلم*'; > > > 2 > > > sqlite> > > > > > > > One possible explanation: You mentioned that you want a "contains" > search. > > However, the trailing asterisk in your example only results in a "begins > > with" search. If you really want a "contains" search, you'll need to put > > the * at both the beginning and end of the match word. E.g., "WHERE fts > > MATCH '*asdf*'; > > > > Hope this is helpful. > > > > ~Eric > > _______________________________________________ > > sqlite-users mailing list > > sqlite-users@mailinglists.sqlite.org > > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users > > > _______________________________________________ > sqlite-users mailing list > sqlite-users@mailinglists.sqlite.org > http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
