Re: [sqlite] FTS Find Tokens at Record Start
You might want to check the following: SELECT word FROM fts WHERE fts MATCH '^token' Beginning with 3.7.9 this should only return records that have 'token' at the beginning of the record. See changelog of 3.7.9: If a search token (on the right-hand side of the MATCH operator) in FTS4 begins with "^" then that token must be the first in its field of the document. ** Potentially Incompatible Change ** -Ursprüngliche Nachricht- Von: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org] Im Auftrag von Clemens Ladisch Gesendet: Freitag, 5. April 2013 15:41 An: sqlite-users@sqlite.org Betreff: Re: [sqlite] FTS Find Tokens at Record Start Paul Vercellotti wrote: > using FTS, how do you match records that contain certain tokens beginning at > the start of the record Apparently, this information is not stored in the FTS index. Search for the tokens, then manually check with LIKE or something like that. Regards, Clemens ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] FTS Find Tokens at Record Start
Paul Vercellotti wrote: > using FTS, how do you match records that contain certain tokens beginning at > the start of the record Apparently, this information is not stored in the FTS index. Search for the tokens, then manually check with LIKE or something like that. Regards, Clemens ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
[sqlite] FTS Find Tokens at Record Start
Hi there, I couldn't find this from the documentation: using FTS, how do you match records that contain certain tokens beginning at the start of the record (or any token position for that matter). For example, I want to match records that start with "Four score and seven years ago" but not match records that contain that phrase in the middle. This matches any document that contains the phrase: SELECT rowid FROM documents WHERE content MATCH '"Four score and seven years ago"'; But I want only the results that start with that phrase, which would be a subset of those results. It looks like I could programmatically parse the output of the offsetsfunction to find this info and manually filter my results, but is there a way to set up the query so it does the filtering for me, and only returns results that start at byte offset 0 in the column (or token 0)? Thanks! -Paul ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
