1
0
mirror of https://github.com/sqlite/sqlite.git synced 2026-10-23 21:49:02 +03:00
Commit Graph

12 Commits

Author SHA1 Message Date
dan
4bc39fa188 Change the EXPLAIN QUERY PLAN output to use "USING INDEX" instead of "BY INDEX", and to use "SEARCH" instead of "SCAN" for loops that are not full-table scans.
FossilOrigin-Name: 6611b76b0296875fb9903b25dfaa783a9c12eaa1
2010-11-13 16:42:27 +00:00
dan
acf1987d18 Fix a bug in the EXPLAIN QUERY PLAN code.
FossilOrigin-Name: 7ae068952fba4395b4aa437613a5ed2bd9ddf941
2010-11-11 11:43:01 +00:00
dan
47eb16d4ce Modifications to test cases to account for new EXPLAIN QUERY PLAN output.
FossilOrigin-Name: 30904ef8412348464e893e9e1551ef22cad24a3e
2010-11-11 10:36:25 +00:00
drh
dda70fe38e Remove leftover "breakpoint" commands from test scripts. Also remove blank
lines at the end of scripts. (CVS 6721)

FossilOrigin-Name: 1fef16ec2b89981770cf44f606a420fbe031a7a4
2009-06-05 17:09:11 +00:00
danielk1977
1d46146b58 Attempt to optimize virtual table queries with 'OR' expressions in the WHERE clause. (CVS 6527)
FossilOrigin-Name: f61e4cd93682fd98bea2a71d346f9eaa68454390
2009-04-21 09:02:45 +00:00
danielk1977
a55331620e Optimize queries of the form "SELECT count(*) FROM <tbl>" by adding a sqlite3BtreeCount() interface to the btree layer. (CVS 6316)
FossilOrigin-Name: d4aa6593183224b6868a322511511c0bbf63b598
2009-02-24 10:01:51 +00:00
danielk1977
e2d7b24d08 Scan an index instead of a table for "SELECT count(*) FROM <tbl>" queries. Because an index is usually smaller than a table on disk, this saves some IO. (CVS 6315)
FossilOrigin-Name: 294ba6f743c9132dce0e73da480bd3c2071e7239
2009-02-23 17:33:49 +00:00
drh
103bd88cf7 Increased test coverage in where.c. (CVS 6146)
FossilOrigin-Name: 1e5725c5179660277c2e8c321877d7ee3ca21808
2009-01-08 21:00:02 +00:00
drh
171256c45c Increase test coverage of where.c. Make sure OR-optimization works on
UPDATE and DELETE in addition to SELECT.  (Bug found by coverage tests.) (CVS 6139)

FossilOrigin-Name: 4b2c08e8984befb12fa2173ca89d9f54cf764d22
2009-01-08 03:11:19 +00:00
drh
04bbcd5ce9 Fix a bug in the multi-index OR cost estimator. Remove leftover "breakpoint"
commands from test scripts. (CVS 6086)

FossilOrigin-Name: b090d5736d7eaec17a39d3133e1587b1d2a42acb
2008-12-30 17:55:00 +00:00
drh
eb9441eb06 Add LEFT JOIN test cases for multi-index OR in where9.test. (CVS 6085)
FossilOrigin-Name: 96f3b62914adde34079f08428b4e2fe81c193612
2008-12-30 16:35:53 +00:00
drh
46129af9fb Get EXPLAIN QUERY PLAN working with the multi-index OR optimization.
Added new test script "where9.test". (CVS 6084)

FossilOrigin-Name: 4b6460221011e02bedb724169e8e4793e539e65a
2008-12-30 16:18:47 +00:00