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 20...)
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.
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