> Can you provide examples of your schema, data, and the types of queries > you want to run? This would make it easier to offer suggestions. > > Rich Of course Richard,
In my test I was simply doind something like that : $sqlite3.exe test.db $CREATE TABLE item(id INTEGER PRIMARY KEY AUTOINCREMENT, bits BLOB); $INSERT INTO item(id,bits) VALUES (NULL, RANDOMBLOB(25000)); $INSERT INTO item(id,bits) VALUES (NULL, RANDOMBLOB(25000)); $INSERT INTO item(id,bits) VALUES (NULL, RANDOMBLOB(25000)); ... My wish is to be able to select an item like that : $SELECT id FROM item WHERE bits & 1<<'X'; (where X is a random value from 0 to 200000...) I know this is a bit tricky and not a good practice in Database, but we have a such amount of data, we need to pack it in bit arrays, and we need to keep the solution very simple... so sqlite should be a good candidate. > You cannot provide your own operations, but you can provide your own > functions: > > http://sqlite.org/c3ref/create_function.html > > Then you can write something like > > select blob_OR(blob1, blob2) from mytable; > > where blob_OR is your custom function. > > Igor Tandetnik Thanks, Igor, I will take a look on that. Bruno. _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
