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orderby-planning
Commit Graph

4689 Commits

Author SHA1 Message Date
drh
c91cbc7389 Merge recent trunk changes into the orderby-planning branch. 
FossilOrigin-Name: 8d8609d6c619e02e3e832e3b2256b8dccb8c21de
 2014-05-09 17:17:37 +00:00
dan
d2d8ca600e Fix the way parenthesis in MATCH expressions are handled by FTS if the tokenizer considers them to be token characters. 
FossilOrigin-Name: e21bf7a2ade6373e94ea403c665f78e1ad22143f
 2014-05-07 19:59:36 +00:00
drh
eacc050f30 Make sure the group_concat() function returns an empty string, not a NULL, 
if it has at least one input row.  Fix for ticket [55746f9e65f8587].

FossilOrigin-Name: 0deac8737545a020d344be96fff16660a7977ab8
 2014-05-07 17:19:31 +00:00
drh
731dc0cb0e Add the SQLITE_IOCAP_IMMUTABLE bit as a possible return value from 
the xDeviceCharacteristics method in the VFS.  Add the "nolock" and
"immutable" query parameters to URI filenames.

FossilOrigin-Name: 1a0d7d3d9dd54b783e3a805961287dd01f94770c
 2014-05-07 15:46:04 +00:00
drh
6451c2b04e Fix nolock and immutable so that they work even if READONLY is requested. 
FossilOrigin-Name: e193aced2942e7405d0f45f90d4954b5663b4ba5
 2014-05-07 15:32:03 +00:00
drh
62e603a904 Add test cases and documentation for the nolock and immutable query 
parameters.

FossilOrigin-Name: 19d56cbaca222b32e2e354063149cccd89441d73
 2014-05-07 15:09:24 +00:00
dan
a153643b07 Fix a broken test case in fuzz.test. 
FossilOrigin-Name: faa469355eabb2c407f24638b090725448aac37f
 2014-05-02 14:54:56 +00:00
drh
fb0d6e56d6 Merge latest trunk enhancements and fixes into the orderby-planning branch. 
FossilOrigin-Name: 84862d3a095629d20c8e7b8a16f4dc26cd41ab6d
 2014-05-02 13:09:06 +00:00
dan
3852413246 Fix an obscure problem to do with temp register allocation that could occur if more than one simple SELECT within a compound SELECT uses a partial sort. 
FossilOrigin-Name: 427409ae106cdab7892a6b50fe30c5f52de5addc
 2014-05-01 20:26:48 +00:00
dan
e03d76254c Update a test case in wal2.test that explicitly corrupts a checksum in the wal file to account for the fact that the first byte of said checksum may initially be 0xFF. 
FossilOrigin-Name: 2b935bdea1452505f36dc8c7aad49e6c42f4eceb
 2014-05-01 10:19:16 +00:00
dan
5da73e1a09 Fix a problem in calculating the costs of "OR" scans. 
FossilOrigin-Name: 9bbca48b42e4fe16f2188e18dc736da30a96435c
 2014-04-30 18:11:55 +00:00
dan
75525cbe24 Update a couple of test cases to account for the fact that this branch prefers an index scan and partial sort over a full-table scan and full external sort. 
FossilOrigin-Name: 9b975bf33cd8fc28c64183a9642bf9fb436a4746
 2014-04-30 14:53:21 +00:00
dan
264d2b97a9 Test that the default values used when sqlite_stat1 data is not available are calculated correctly. Fixes for the same. 
FossilOrigin-Name: e2d42f909de85a0586389f2dc0e654f7af2e351a
 2014-04-29 19:01:57 +00:00
dan
e4618fb30d Merge trunk changes into this branch. 
FossilOrigin-Name: d74299f037f3a6a4b3bce8b4d1c76c407c1f3b3e
 2014-04-29 16:46:24 +00:00
dan
09e1df6c00 Ignore likelihood() values on indexed IPK lookups. 
FossilOrigin-Name: 5bb7757a7b32a74482d3e93e9c9eea02273fe981
 2014-04-29 16:10:22 +00:00
dan
67a03cfd6e Fix a test case so that it updates sqlite_stat1 consistently. 
FossilOrigin-Name: 2dc5a0b55567f13f0528ed17242e680cde2f2a29
 2014-04-29 12:01:35 +00:00
dan
7de2a1faf6 Do not reduce the number of rows scanned at all for "IS NOT NULL" constraints. Fix a bug in calculating the number of rows visited by scans of partial indicies. 
FossilOrigin-Name: a8ae93f0cffa116df0ba34d46a53f49d42dace41
 2014-04-28 20:11:20 +00:00
drh
65e6b0dd12 Add the sqlite3_rtree_query_callback() API to the RTree virtual table. 
(Cherrypick from the sessions branch.)

FossilOrigin-Name: af2cbe64adab5f9e3b0f3da00d06428088589d7f
 2014-04-28 17:56:19 +00:00
dan
6b6828625b Update unordered.test to take into account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. 
FossilOrigin-Name: 20f468dfbcb247e51446fad411a6e6cc0d130411
 2014-04-28 15:11:25 +00:00
dan
9881d60d17 Add an extra column to a table in analyze9.test to give the planner a little more reason to select an index. 
FossilOrigin-Name: 1b95544f84bf83c28cc15f6d0690fdf8a6bb3941
 2014-04-28 12:08:23 +00:00
dan
b51926e67c Update test script analyze3.test to account for the fact that SQLite now prefers a full-table scan over a non-covering index scan that visits a large percentage of the table rows. 
FossilOrigin-Name: 35f46a55d866b9a87c1321aab8e0cfe86ccadb93
 2014-04-28 10:00:59 +00:00
dan
440e6ff3b0 Fix an error in estimating of the number of rows visited by a range scan. 
FossilOrigin-Name: d491de62fce69d93e89f65f7713972f7c2c451f7
 2014-04-28 08:49:54 +00:00
dan
2dd3cdcfab Fix an sqlite3_stmt_status() problem caused by recent changs on this branch. 
FossilOrigin-Name: dee204092421a239f9f60ab83c3a5b3e24d1baea
 2014-04-26 20:21:14 +00:00
drh
1f8bb4b0a8 Update requirements marks to fix typos in the requirements text. 
No changes to code.

FossilOrigin-Name: f5a263658187250044afc1a74000e6f6962733ca
 2014-04-26 19:23:14 +00:00
drh
453e0261df Allow the xfer optimization to proceed if the DEFAULT on the very first 
column of the two tables is different.  This is a refinement of the
fix for ticket [f67b41381a].

FossilOrigin-Name: 349f483499dd685a8da94923b6bd810a52e5e236
 2014-04-26 17:52:08 +00:00
dan
9940e2aa45 Avoid transfering records between tables unless the default values for all columns are the same. Fix for [f67b41381a]. 
FossilOrigin-Name: f8c4c495e6de1f124d205383d4bafa46accbff5c
 2014-04-26 14:07:57 +00:00
dan
8ad1d8ba38 If the user provides likelihood() data for a WHERE clause term used as part of an index key, have the planner use it when calculating the expected number of rows visited by the loop. 
FossilOrigin-Name: c51efaa5d29ee0a91b9e6a83a8dd82530670811a
 2014-04-25 20:22:45 +00:00
drh
b79c718f1a Add test cases to ensure correct operation of joins with a virtual table 
that include DISTINCT and ORDER BY clauses.  Verification for ticket
[388d01d4bb8f9].

FossilOrigin-Name: 5ada136f43ce744ae8c349eff39838eb44611b6e
 2014-04-25 17:37:16 +00:00
dan
aa9933c115 Changes to the way the planner calculates the costs of various table and index scans. Some test cases still failing. 
FossilOrigin-Name: c5a6ec0a880652dc8f4593d9f7acd58ddc3dc5f3
 2014-04-24 20:04:49 +00:00
drh
0ff435a782 Reopen the orderby-planning branch and merge in the latest trunk enhancements 
and fixes.

FossilOrigin-Name: 6077ddcd93318e24b9756adaaf293ba9fb3cedf7
 2014-04-24 15:06:25 +00:00
drh
f0582f43dd Comment tweaks on the test case for the [b75a9ca6b0] bug fix. 
FossilOrigin-Name: 65d2544af9adc1e2f1d193e57f8be0422fb0d5eb
 2014-04-21 13:36:54 +00:00
dan
374cd78c1d Avoid discarding an ORDER BY clause in the case where an identical GROUP BY clauses uses an index to group, but not sort, the rows. Fix for [b75a9ca6b0]. 
FossilOrigin-Name: de9a490f594183f337a2ec9e0f87792eac83548b
 2014-04-21 13:21:56 +00:00
drh
65b9ac5224 Make sure the undocumented sqlite_rename_parent() function does not 
crash even if it is invoked with NULL arguments.
Ticket [264b970c4379fd4b94]

FossilOrigin-Name: c6fa8d0d82805be230f672eabccdfa5680d4ddfd
 2014-04-14 19:48:25 +00:00
drh
87744513e7 Make sure column cache elements are cleared correctly when jumping over 
code for key generation in a partial index. 
Fix for ticket [2ea3e9fe6379fc3f6].

FossilOrigin-Name: 3122b8364082be783821da01d4af2af6a9586327
 2014-04-13 19:15:49 +00:00
drh
d83cad235a Modify the OR-clause handling so that it can safely deal with OR-clause 
with 17 or more terms.  Fix for ticket [10fb063b1179be53ea0b53bb].

FossilOrigin-Name: a67b5312f63909737c052fe58ab5772d45530d49
 2014-04-10 02:24:48 +00:00
drh
48e080b26c Performance improvements when reading large blobs, especially if 
SQLITE_DIRECT_OVERFLOW_READ is defined.

FossilOrigin-Name: 2312eb6a9eb31051db4e0baf19e033ba39adc7b1
 2014-04-04 18:49:19 +00:00
drh
853546d047 Merge changes to the query planner that strive to ensure that any index 
usage that is a proper subset of some other index usage always has a slightly
higher cost.

FossilOrigin-Name: 683dd379a293b2f330e1e4cd746f190527fe48ee
 2014-04-04 18:20:35 +00:00
drh
1fb6a11072 Ensure the "PRAGMA journal_mode=WAL" works coming from any other journal_mode 
with ATTACH-ed databases.

FossilOrigin-Name: e54330b43127e46fc6494748cbb353a6fc91cfd7
 2014-04-04 14:12:52 +00:00
drh
c438df1be0 Use OP_Copy instead of OP_SCopy when moving results out of a subquery, 
to prevent the subquery results from changing out from under the outer
query.  Fix for ticket [1e64dd782a126f48d78].

FossilOrigin-Name: d5513dfa23baa0b0a095aaf17d19aacd30dcef61
 2014-04-03 16:29:31 +00:00
drh
e4529c5724 Merge in the latest changes and fixes from trunk. 
FossilOrigin-Name: f6211540c9d66a08dc580dd733e4f4a98968ae30
 2014-03-31 22:03:32 +00:00
drh
3fb183d2f7 Also make sure an index that is a proper subset of some other index has a 
higher cost than that other index.  Add test cases.

FossilOrigin-Name: b7830d232b073a197aa1092e78cb24e88cb10fd3
 2014-03-31 19:49:00 +00:00
drh
7c8e9c78c8 Merge the latest changes from trunk. 
FossilOrigin-Name: 3047a25f1c41e83f0b4772f7c36fbfec0f12dc7e
 2014-03-28 18:35:39 +00:00
drh
70c93204ea Disable the wal64k.test script for non-unix systems since it depends on 
unix-only features.

FossilOrigin-Name: 27deb6e49bcc76714dbdc61b34748603155ac770
 2014-03-28 14:41:35 +00:00
drh
a1f7c0a21c Enhance the sqlite3VdbeRecordCompare() routines so that if they encounter 
database corruption, they will set the UnpackedRecord.isCorrupt field and
return 0.  The sqlite3BtreeMovetoUnpacked() routine detects this and returns
SQLITE_CORRUPT, causing the corruption to be reported back to the top-level.

FossilOrigin-Name: 7fa85eaaaf6d211378620d728a759fdfe30a15b0
 2014-03-28 03:12:48 +00:00
drh
bfa463696b Merge the latest trunk changes and the fix for the crash on a corrupt 
database.

FossilOrigin-Name: 0b35346c32dba14963c85ec178f2b46aa2bbf6dc
 2014-03-27 00:09:00 +00:00
dan
68916c9fd3 Add an extra test case for the potential buffer overread patched by [28ddecff04]. 
FossilOrigin-Name: f585f5d7a0f9bf8c590388654a3638231eba8892
 2014-03-26 15:14:59 +00:00
drh
d9c131c366 Add a test case to verify that the previous change avoids excess buffer 
overread in sqlite3VdbeRecordCompare().

FossilOrigin-Name: 2b28e8d582cf10936fa1faca04a16ca2eeead66f
 2014-03-26 15:05:56 +00:00
drh
182ea4e324 Earlier detection of corruption in sqlite3VdbeRecordCompare() in order to 
avoid a potential buffer overread.

FossilOrigin-Name: 28ddecff044dbc2dff50a7d8406ab67dfe06587f
 2014-03-26 14:51:07 +00:00
drh
5e8980ddb1 Adjust the repeat counts on several tests in speedtest1 so that the relative 
time spent on the test is roughly the same regardless of --size.

FossilOrigin-Name: 7922809ee0d3978ce9221fbb7df63aa0684d0c4d
 2014-03-25 20:28:38 +00:00
drh
e6c7b09df6 Merge enhancements and fixes from trunk. 
FossilOrigin-Name: e005f2d6dd9faf38cc8fdb9428b5aa6192a6adae
 2014-03-25 18:29:12 +00:00