Hi Alan!
Did you look at Mark's queue bits he sent to the mailing list a week
ago?
Cheers,
-Brian
On Dec 22, 2008, at 4:05 PM, dormando wrote:
It's for queue management, so we (intend) for the rows to get
dropped if the PKID conflicts.
The logic is actually INSERT IGNORE INTO ... unless database does
not have INSERT IGNORE, in which case use REPLACE INTO. Which could
be much slower.
I like the idea of ON CONFLICT ... all we really need is ON CONFLICT
DROP or IGNORE, and don't really need ON CONFLICT MUNGE_MY_DATA.
It's along the same idea of how you do "ON DUPLICATE KEY UPDATE" in
SQLite. ON CONFLICT blah blah blah.
-Dormando
On Mon, 22 Dec 2008, Brian Aker wrote:
Do you use the ignore to dump rows? Or do you just want to muddle
through the data? Would it be ok to encourage default values?
The slippery sloap is allowing null on not null columns. I would
like to avoid that, most everything else I am game for.
Personally I use IGNORE to handle loads where I have a primary key
and I just want duplicate data dropped.
Cheers,
--Brian
On Dec 22, 2008, at 2:05 PM, dormando <[email protected]> wrote:
No, please don't go back into any corner. Discuss, please!
Are you a huge fan of the IGNORE keyword?
-jay
I personally (and my company) use the crap out of it. Along with
LOAD DATA INFILE that was previously discussed. If one or the
other goes away, do we have alternatives?
Think I've used INSERT IGNORE INTO ... SELECT FROM ... a bunch to
collapse data. There isn't really a way to handle bailouts in the
middle, nor is it always reasonable to adjust all of the data
first. ie; You want the constraint on one table but not another,
for different views of the data.
We could potentially get by without using INSERT IGNORE in
mogilefs by handling and ignoring the errors... but bulk requeue
attempts would bail out in the middle, so we'd have to only do one
at a time, which is slow.
-Dormando
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_______________________________________________________
Brian "Krow" Aker, brian at tangent.org
Seattle, Washington
http://krow.net/ <-- Me
http://tangent.org/ <-- Software
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