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
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