Re: Very slow query when too many joins
Posted by:
As Os
Date: June 05, 2016 10:48AM
It 's user created fields.
Table 'field' holds the id, the name of the field and it's options.
Table 'fields_values' holds the the values of the fields.
They're joined with: id->field_id
Table 'ads' holds it's id and the fields' ids.
If one row of 'ads' has 27 fields it has to make 27 JOINS to take the values from 'fields_values' table.
Subject
Views
Written By
Posted
5142
June 05, 2016 09:17AM
1974
June 05, 2016 09:27AM
1834
June 05, 2016 10:14AM
Re: Very slow query when too many joins
1683
June 05, 2016 10:48AM
1600
June 05, 2016 10:56AM
1910
June 05, 2016 03:33PM
1426
June 05, 2016 03:41PM
1509
June 05, 2016 05:36PM
1420
June 06, 2016 02:23AM
1435
June 06, 2016 03:33AM
1312
June 06, 2016 08:36AM
1400
June 06, 2016 08:52AM
1415
June 06, 2016 09:02AM
1386
June 06, 2016 11:16AM
1514
June 06, 2016 08:29AM
1332
June 06, 2016 11:30AM
1352
June 06, 2016 12:08PM
1364
June 06, 2016 02:11PM
1428
June 07, 2016 03:40PM
1454
July 20, 2016 05:34AM
1431
July 20, 2016 09:37AM
1852
July 21, 2016 04:43AM
1324
July 22, 2016 10:59PM
Sorry, you can't reply to this topic. It has been closed.
Content reproduced on this site is the property of the respective copyright holders.
It is not reviewed in advance by Oracle and does not necessarily represent the opinion
of Oracle or any other party.