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21 Commits

Author SHA1 Message Date
drh
8210233c7b Revise tests cases to align with the new EXPLAIN QUERY PLAN output. 
FossilOrigin-Name: 50fbd532602d2c316813046ed6be8be2991c281eb5f295c4c28520a0de73862c
 2021-03-20 15:11:29 +00:00
drh
0ca23aa437 Fix broken requirement marks. 
FossilOrigin-Name: 98d67152849e062c6de45b0e526daffc3d6cb29d563d40664a8d7140119a30b2
 2021-03-12 13:49:09 +00:00
drh
094afffaec Improve the query planner so that it is better able to find full 
index scan plan when there is an INDEXED BY clause.

FossilOrigin-Name: d901837fea1ed54de43ad59eb47c02cbfd2eb215fc57317b5ea8c22a7df947c4
 2020-06-03 03:00:09 +00:00
drh
e3d511c078 Fix requirements marks. No code changes. 
FossilOrigin-Name: 7fdad122a21e4b01bd678198fd5131dc32febe3af366bd6368505398255f9822
 2018-05-04 18:32:11 +00:00
drh
b3f0276b9e Fix test cases so that they work with the new EXPLAIN QUERY PLAN output 
format.  Only some of the cases have been fixed.  This is an incremental
check-in.

FossilOrigin-Name: 5f0e803e33aa557865d5fc830d9202d628de9a94c9757058ca48f1a560702cd3
 2018-05-02 18:00:17 +00:00
dan
85e1f46eb9 Fix a problem causing an INDEXED BY specifying an unusable partial index to be 
mishandled.

FossilOrigin-Name: 292a04086a902634fc514b379a2b245eb2681c1b84d9bb950b6ecb9aab28b468
 2017-11-07 18:20:15 +00:00
dan
f0ee1d3c12 Experimental change to use a single-pass approach for DELETE statements on non-virtual tables that do not fire triggers or require foriegn-key processing. 
FossilOrigin-Name: eaeb2b80f6f8f83679c8323a81bb39570ec946fe
 2015-09-12 19:26:11 +00:00
drh
b3366b99c8 Update evidence marks due to wording changes in requirements text. No 
changes to code.

FossilOrigin-Name: 86781093bdb4c4fdedd228cb1c8961db48a483bb
 2015-09-11 20:54:44 +00:00
drh
682a6ef6bd New requirements marks on INSERT and INDEXED BY and on some sqlite3_config() 
options.

FossilOrigin-Name: c298ea0bd90d63673435bf8ceafbaeba3db6187d
 2015-03-04 23:14:14 +00:00
dan
e934e633a5 Fix an invalid assert() in where.c. Also a crash that can occur in the EXPLAIN QUERY PLAN code under obscure circumstances. 
FossilOrigin-Name: ef192abb82c2fc31135f875d7a19908d67c076b0
 2013-08-20 17:14:57 +00:00
drh
4fe425ad79 "make test" now passing. 
FossilOrigin-Name: addd7f466d6ff55f82d907286650c26b06e9397b
 2013-06-12 17:08:06 +00:00
drh
5822d6feb2 Fix test cases for the new EXPLAIN QUERY PLAN format. Add the 
wherecosttest tool.  Other fixes to logarithm cost.

FossilOrigin-Name: aa580e368e3c398b8377b80342dfdd906324c248
 2013-06-10 23:30:09 +00:00
drh
083310dfcc Change the weighting of binary searches on tables to 1/10th the cost of a 
search on an index.  Change the assumed reduction in search space from a
indexed range constraint from 1/3rd to 1/4th.  Do not let the estimated 
number of rows drop below 1.

FossilOrigin-Name: 4847c6cb71423248b186ab7842b97c83e2f5fefd
 2011-01-28 01:57:41 +00:00
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
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
5e377d90ed If the outer loop of a join must be a full table scan, make sure that an 
incomplete ANALYZE does not trick the planner into use a table that might
be indexable in an inner loop.  Ticket [13f033c865f878]

FossilOrigin-Name: e7a714b52c45af096af74049826d32c647abfe3f
 2010-08-04 21:17:16 +00:00
drh
296a483c2e Allow the keyword INDEXED to be used as the name of a table or index or 
column - for backwards compatibility. (CVS 6370)

FossilOrigin-Name: 53149c9f5d5cfaba3374703cd3af92a9d4cf8718
 2009-03-22 20:36:18 +00:00
danielk1977
992347f2ed Fix a bug in where.c causing a malfunction when an INDEXED BY clause specified an unusable index on other than the leftmost table in the FROM clause. Ticket #3560. (CVS 6076) 
FossilOrigin-Name: f8ff0212129ce602a1e1e9ad702c47b9302f2f21
 2008-12-30 09:45:45 +00:00
danielk1977
b1c685b0c8 Allow INDEXED BY and NOT INDEXED to be used in UPDATE and DELETE statements. (CVS 5772) 
FossilOrigin-Name: 83a7e446b2d4846a6f92bd831a2adaa265f5a786
 2008-10-06 16:18:39 +00:00
danielk1977
de89c4cc17 Add a test to indexedby.test to check that automatic indexes (sqlite_autoindex_xxx) can be used with the INDEXED BY syntax. (CVS 5767) 
FossilOrigin-Name: bb51c34506b3353506b6f3566fbe2a10d02e8ebc
 2008-10-06 11:29:49 +00:00
danielk1977
85574e31cb Allow INDEXED BY and NOT INDEXED clauses in SELECT statements. (CVS 5766) 
FossilOrigin-Name: 98ca5580f5acd2e7b3ce512520ec0527f221505e
 2008-10-06 05:32:18 +00:00