On 10/18/2012 09:49 PM, Dan Kennedy wrote:
On 10/18/2012 03:32 PM, Imanuel wrote:
Ok, here it is (45mb):
http://www.file-upload.net/download-6707980/CREATE_INDEX_test.7z.html

On Linux here 3.6.22 takes around 61 seconds. Against 23 for a new
version. Are you able to reproduce the performance regression with
these two?

http://www.sqlite.org/sqlite-shell-win32-x86-3062200.zip
http://www.sqlite.org/sqlite-shell-win32-x86-307140100.zip

Second link is incorrect. They should be:

  http://www.sqlite.org/sqlite-shell-win32-x86-3062200.zip
  http://www.sqlite.org/sqlite-shell-win32-x86-3071401.zip

Dan.



Dan.






Imanuel


Am 18.10.2012 00:37, schrieb Imanuel:
No, the performance stays the same.
I have also tried using a big cache_size, but that didn't change
anything, too.

Yes, I can share the database - it is currently uploading, I will mail
the link tomorrow.

Imanuel


Am 17.10.2012 22:08, schrieb Dan Kennedy:
On 10/18/2012 01:32 AM, Imanuel wrote:
Hello

I tested this on an SSD with a database with one single table with
5,553,534 entries:
CREATE TABLE Namen(id INTEGER PRIMARY KEY, geonameid INTEGER, lang
TEXT,
name TEXT, pref INTEGER DEFAULT 0, short INTEGER DEFAULT 0, coll
INTEGER
DEFAULT 0, historic INTEGER DEFAULT 0, sort INTEGER DEFAULT 7)

When running this command:
CREATE INDEX idx_namen_name ON Namen(name)

Version 3.6.22 (from here: http://indasoftware.com/sqlite/) takes 36
seconds, while 3.7.14.1 (as DLL, too) takes 279 seconds.
Indexing the column "geonameid" makes 24 vs. 312 seconds.
Neither of the both columns are presorted.
If you set "PRAGMA temp_store = memory" in 3.7.14.1 is the
performance the same as in 3.6.22?

Are you able to share the database?

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