Am 12.03.2012 12:40, schrieb Kit:
2012/3/12, Christoph P.U. Kukulies<k...@kukulies.org>:
INSERT OR IGNORE INTO resource ...
INSERT OR REPLACE INTO instance ...
Thanks a lot. What is the idea behind the INSERT OR REPLACE in your
solution?
Christoph
If you edit a test for some version of your software, md5sum is
changed too. You must replace row in `instance`.
Thanks. I have the structure now in a shape I think it would be useful:
CREATE TABLE instance (
mandant TEXT ,
md5sum TEXT,
basename TEXT,
prob_ref TEXT,
suite TEXT ,
tag TEXT ,
size INT,
creation_date TEXT,
last_write_time TEXT,
PRIMARY KEY (mandant,basename,prob_ref,suite,tag)
);
CREATE TABLE resource ( md5sum TEXT PRIMARY KEY, data BLOB);
The FS tree contained about a million files and a corresponding
tar-archive comprises about 70 GB.
The database with gzipped BLOBS now is 1.7GB in size.
Each files' location is made of \mandant\prob_ref\tag\suite\basename.
My only question now is:
when I collect the files and INSERT or IGNORE the resource, I have to
read in the file and build the BLOB,
independently on whether the INSERT really has to take place. A quick
beforehand decision whether
an INSERT has to be made, could possibly speed up the file collection
process.
I was using a try clause on the INSERT and if that wouldn't fail I was
doing an UPDATE on just the BLOB.
Other ideas?
--
Christoph
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