On 03/04/2017 01:22, Clemens Ladisch wrote:
Do you have a concrete example for such a statement?
Yes. I need to re-assemble the large data packet that comes in portions.
I would like to use a blob field for this. I don't want to store parts
in separate records, because this is essentially one file.
So far sqlite is failing, because the handle returned by
sqlite3_blob_write is invalidated by the updates to the other fields,
and sqlite3_blob_open/sqlite3_blob_close are too slow to call them on
every fragment.
I would like to maintain the record like this:
table file {
id integer,
num_done integer,
num_total integer,
data blob
}
File metadata and data all in one record. Blob handle gets invalidated
when metadata is updated, and it's too expensive to open/close the blob
every time.
Due to these two problems sqlite can't support this reasonable, IMO, use
case.
Yuri
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