2011/10/30 Black, Michael (IS) michael.bla...@ngc.com
#1 What version?
3.7.8, using System.Data.Sqlite wrapper
#2 How long to insert the 1M?
10 seconds
#3 What's the average string size?
55 characters
#5 How long to create the index?
10 seconds
#6 How long to insert the
[sqlite-users-boun...@sqlite.org] on
behalf of Fabian [fabianpi...@gmail.com]
Sent: Saturday, October 29, 2011 12:11 PM
To: General Discussion of SQLite Database
Subject: EXT :Re: [sqlite] Slow inserts with UNIQUE
2011/10/29 Simon Slavin slav...@bigfraud.org
When you insert the 10,000 strings
Discussion of SQLite Database
Subject: EXT :Re: [sqlite] Slow inserts with UNIQUE
2011/10/29 Simon Slavin slav...@bigfraud.org
When you insert the 10,000 strings are you doing it inside a transaction ?
BEGIN TRANSACTION;
INSERT ...
INSERT ...
INSERT ...
COMMIT;
Yes, I use transactions
I have a table with one TEXT column. I insert 1 million rows of short
strings, and then create an UNIQUE INDEX. The speed is very acceptable. Then
I insert another 10.000 short strings, and the performance is very bad, it
almosts take longer than inserting the initial million(!) rows to fill the
On 29 Oct 2011, at 5:57pm, Fabian wrote:
I have a table with one TEXT column. I insert 1 million rows of short
strings, and then create an UNIQUE INDEX. The speed is very acceptable. Then
I insert another 10.000 short strings, and the performance is very bad, it
almosts take longer than
2011/10/29 Simon Slavin slav...@bigfraud.org
When you insert the 10,000 strings are you doing it inside a transaction ?
BEGIN TRANSACTION;
INSERT ...
INSERT ...
INSERT ...
COMMIT;
Yes, I use transactions, prepared statements, cache_size, journal_mode and
synchronous PRAGMA's, almost
