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30,154 Commits 1,570 Branches 183 Tags
empty-table-optimizations
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9780 Commits

Author SHA1 Message Date
drh
ec39707fe6 New dbsqlfuzz cases added to test/fuzzdata8.db. 
FossilOrigin-Name: 49073b7003330027303c4c776e9f85112f8b99b89f848fec3f953eba501d7505
 2019-09-26 16:57:42 +00:00
dan
a51ddb1ed7 Fix a window-functions problem that could occur if an ORDER BY clause contains an alias for a window-function that is not a top-level expression. 
FossilOrigin-Name: 1cc6cf6407c6e25aeafeca379a93d0ad2614839c07fb3644e46926fce5f1cfab
 2019-09-26 15:53:37 +00:00
dan
e7579a53fb Further simplifications to window-function code. 
FossilOrigin-Name: 5fe15c1d8383989257e11d1806e6b035acacd1b504ae385ba58d20db10f26eee
 2019-09-25 16:41:44 +00:00
dan
37d296a717 Bug fixes for window frames of the form (... RANGE BETWEEN b PRECEDING AND a PRECEDING) or (... RANGE a FOLLOWING AND b FOLLOWING) where (a > b). 
FossilOrigin-Name: 040e196a8be3ca41b9365310ab88c2a3cc84b918a6511c77a6d95d4b4e0da3ed
 2019-09-24 20:20:05 +00:00
dan
8c9bcb2328 Allow SQLite to omit redundant ORDER BY sorts in the case where a SELECT statement has GROUP BY and ORDER BY clauses that use the same expressions, even when the ORDER BY expressions are marked "DESC". 
FossilOrigin-Name: 20f7951bb238ddc0b8932a55145df426b6fdf7b8631e069345902c853c90f191
 2019-09-21 15:44:12 +00:00
dan
ed09dddece Fix a problem with queries containing a min() or max() function for which the FILTER clause excludes all rows. 
FossilOrigin-Name: b1d7e104e034655fe41bc55c562d91e8074a2973d538b8b29301458db45afc57
 2019-09-20 20:52:16 +00:00
dan
14e3e22773 Fix an assert() in fts3 that could fail when accessing a corrupt database. 
FossilOrigin-Name: 601ce9532d34f97a5faa170b6d8a272e5c54f2eabff84660201a1840e0fd9929
 2019-09-19 13:51:52 +00:00
drh
6d2566dfc2 Always clear the temporary register cache after coding a subroutine. 
FossilOrigin-Name: b6f2a7f9cdb547c925f08306df82519e41a7a0dd2cabd9861a48917bb6eef845
 2019-09-18 20:34:54 +00:00
dan
572b0dddee Add extra tests for the handling of corrupt records in fts3. 
FossilOrigin-Name: 40e29a47d1266c16a4992e43579a51addcc632503099c4cd128f77dd4e67da3c
 2019-09-18 17:22:00 +00:00
drh
e691dcb506 Test cases for ticket [587791f92620090e] 
FossilOrigin-Name: ca0e3a83a1c015b346a791e6de03904d17a769c52dad0e3d71316c6e2e3f43c7
 2019-09-17 13:30:30 +00:00
drh
91f473b5cc Do not attempt the LIKE optimization for non-text columns and a pattern 
prefix of "-".  Ticket [0f0428096f17252a]

FossilOrigin-Name: 6fe0367f9a337b7c62886b7771f3ce0642faa13f4e4f3d9a0c848abbab514cd0
 2019-09-16 18:19:41 +00:00
drh
130dbc3d96 Add recent interesting cases from dbsqlfuzz. 
FossilOrigin-Name: f06ef3d75d85545dd58c6dda10f7ad04fafbb7ae8706b3821be21f86a94795f1
 2019-09-16 15:15:38 +00:00
dan
b42eb3571c Fix a problem with processing CTEs that use a WINDOW clause. 
FossilOrigin-Name: ca564d4b5b19fe56842a04f31bb61352e6ae9d72a7e7634eb27ebcf5f670545a
 2019-09-16 05:34:08 +00:00
drh
fab5b07395 Fix the windows inverse function on the JSON aggregates. 
FossilOrigin-Name: f464d847af490dd3ec45565dcc4c2e6ff4ed1ebb65036f30ca0b3ce2e73080e6
 2019-09-14 00:21:34 +00:00
dan
51a75aaa76 Fix a problem with using json1 window functions with an EXCLUDE clause. 
FossilOrigin-Name: 4a1978814da41608a16f6953bd575c97d587a34bd80b7ac0e619d62bfdc903d2
 2019-09-13 20:42:46 +00:00
drh
e087a7c35b Fix the windowB test module so that it works even if SQLite is built without 
JSON support.

FossilOrigin-Name: 807975c76b36347f02aa0ce9661d608adbffe1f7e77c15f8da677e47e1187153
 2019-09-13 18:59:04 +00:00
dan
945a3527d5 Merge latest trunk changes with this branch. 
FossilOrigin-Name: 14ef7543465dd14d8fa141fcceb1950b5c2d265a3e862323969d747b39c0cd8c
 2019-09-13 16:19:53 +00:00
dan
fa50834914 Ensure the columns of views and sub-queries maintain their implicit collation sequences when the "push-down" optimization is applied. Fix for [18458b1a]. 
FossilOrigin-Name: 36997c4ade2ef3a274cd1ac52b44118fb3a05325adb650b7b338ecb43d060575
 2019-09-10 15:33:52 +00:00
dan
d5deb6b3c4 Ensure the columns of views and sub-selects in the FROM clause of a select are always assigned implicit collation sequences, just as table columns are. Fix for [a7debbe0]. 
FossilOrigin-Name: b9ec72203c19c2b95e648ac1dfad74eec98d4ff82581cdc10dc4221ba551728f
 2019-09-09 20:17:24 +00:00
dan
e08663946e Ensure the columns of views and sub-selects in the FROM clause of a select are always assigned implicit collation sequences, just as table columns are. Possible fix for [a7debbe0]. 
FossilOrigin-Name: 1863b7bf12521bdd2b51c5b8d3a4634bff3e15d3713e0b5343952df7da02f794
 2019-09-09 19:49:42 +00:00
dan
e2ba6df9f0 Add the SQLITE_SUBTYPE flag, which can be passed to sqlite3_create_function() and similar to indicate to the core that a user function is likely to use sqlite3_result_subtype(). 
FossilOrigin-Name: 6aa438ce41d460a6782ae63503128b9140c28ff59c2b2eed48b004acf83e0560
 2019-09-07 18:20:43 +00:00
dan
1a97c413f8 Fix handling of NULL, text and blob values in window queries that use "RANGE BETWEEN A FOLLOWING AND B FOLLOWING", or "B PRECEDING AND A PRECEDING", where A>B. 
FossilOrigin-Name: cb3e2be674316e1d39968eb6567f1fe1b72f9d89af49640a9e83f944979c4cf0
 2019-09-04 06:56:43 +00:00
drh
c7d12f4ad4 When we play games with COLLATE in order to commute an operator in the 
WHERE clause processing, be sure not to use the commuted operator to qualify
a partial index, as insufficient COLLATE information is preserved to verify
that the expression will correctly qualify the index.
Ticket [767a8cbc6d20bd68]

FossilOrigin-Name: 5351e920f489562f959ab8a376ff720f845ea165e0cdc7c3a271aac53c2aa64a
 2019-09-03 14:27:25 +00:00
drh
4fc836546e Fix a bug introduced earlier today by check-in [88833a9c2849c959]. 
Ticket [29f635e0af71234b]

FossilOrigin-Name: 6e7b4527d32cc1be0294614b9d7363d4b59cf654a954b86515b3f6888975ce73
 2019-09-02 22:13:06 +00:00
drh
dd668c26b5 When applying the IN_INDEX_NOOP optimization and the LHS has REAL affinity, 
also apply REAL affinity to each element of the RHS.
Ticket [2841e99d104c6436].

FossilOrigin-Name: 88833a9c2849c959a37a80e0e4d2b211ce3c83a48319724c89b172b060c876b4
 2019-09-02 02:21:58 +00:00
drh
bffdd63633 When computing an expression value for an index-on-expression or a CHECK 
constraint and the expressions uses a REAL table column, but the value of
that column is an integer (in other words, when it is using the 
store-real-as-integer optimization) be sure to promote the value to real
before evaluating the expression.  Ticket [57af00b6642ecd68].

FossilOrigin-Name: 0658c16e311393c8a347b1bd41fa5dbfd2e184aa75d84c011aa8dbac79b632e9
 2019-09-02 00:58:44 +00:00
drh
80f6bfc064 Improvements to the algorithm that determines which SELECT in a sequence 
of nested SELECT statements that an aggregate function belongs to.  This
resolves an issue identified by dbsqlfuzz.

FossilOrigin-Name: d768007473f4ed40abbdf2c7e501b580b1cc37c1620c7cb90af1f208a8c35145
 2019-08-31 20:13:30 +00:00
dan
f66bfcb740 If a DELETE trigger fired by an UPDATE OR REPLACE statement deletes the row being updated, do not attempt to proceed with the original UPDATE operation. Fix for [d6a0fbc1]. 
FossilOrigin-Name: 4145b3e05051ba6729105157a876793ad14a05d895fc10fe704f437eab16ea93
 2019-08-31 17:14:35 +00:00
drh
7314495ff8 When the affinity of a table column is INT or REAL, make the affinity of 
corresponding index columns NUMERIC.  This increases the precision of
index lookups for large numbers so that it matches the precision of
ordinary comparison operators.  Ticket [40812aea1fde9594]

FossilOrigin-Name: e0d909c740b774d8a46731696e33342be83206cc4a95d07f42fdb3d8cc2d7a8e
 2019-08-30 23:56:34 +00:00
drh
a7ce167e5b Make sure OP_RealAffinity has been applied to all columns of type REAL 
in the excluded.* pseudo-table of an UPSERT.
Ticket [5a3dba8104421320]

FossilOrigin-Name: 67381dadede98a55d8d9e085d021e6fa6473071978967b6302e03b28cf2245e1
 2019-08-30 23:15:00 +00:00
dan
9889ede28d Add test case to window8.test. Also fix an error in a comment in window.c. 
FossilOrigin-Name: 2925bfa5971c8557ecaa6ac18df0825ebbbd1622017509e83451d90640146fa8
 2019-08-30 19:45:03 +00:00
drh
db3a32ed1c Back out the change at [47cd634c98b502d4] which was incorrect. Add a test 
case so that we don't accidently back out that change again.

FossilOrigin-Name: 596ac2a4eab28b74f4050fb4eb71883f2a1421fdbccf302413e4653391bb52c9
 2019-08-30 18:02:49 +00:00
drh
ac6627327c New test cases for window functions with RANGE BETWEEN and DESC NULLS FIRST. 
FossilOrigin-Name: f7002f86c780e279c9f8a6268f317586519c059c9de2115ff6f1cad272570c29
 2019-08-30 16:46:12 +00:00
dan
8b47f52082 Fix a bug in RANGE window functions that use "ORDER BY <expr> DESC NULLS FIRST" as the window-frame ORDER BY clause. 
FossilOrigin-Name: 39b4cad4a51bb5116d62ffb16ac36d96a9280321b049eb2d008605392f52a459
 2019-08-30 16:14:58 +00:00
drh
ae144a1c9f The expression "(X IS FALSE) IN (FALSE)" does not imply that X is NOT NULL. 
Ticket [f8f472cbc77ba9c9]

FossilOrigin-Name: dd66134817ecbda01c59a05ad0d6ac44bee700ab10cd2119c869dd69af293fe2
 2019-08-30 16:00:58 +00:00
drh
7a231b4973 The expression "(X IS FALSE) BETWEEN FALSE AND TRUE" does not implie that 
X is not NULL.  Ticket [fba33c8b1df6a915]

FossilOrigin-Name: 057fb8b1809b8b9c8fff0fd0804153b9644f0545c23c6ddc4758bda3381094b9
 2019-08-30 15:11:08 +00:00
drh
38cefc83c8 The expression "(x IS FALSE) IS FALSE" does not imply that X is not NULL. 
Ticket [a6408d42b9f44462]

FossilOrigin-Name: 45ff2b1f2693bb0231a864a511bb82cf2a5945ab3d806a5bbaf1517ecb287883
 2019-08-30 13:07:06 +00:00
dan
bd717a4d2e Improve vdbe branch coverage of NULLS LAST code. 
FossilOrigin-Name: e8e9f77d52974f6ba0a536d05837b280a996745deb3a2169bb29379f10e49df4
 2019-08-29 21:16:46 +00:00
dan
9d23ea74d4 Fix other problems similar to ticket [c0390363]. 
FossilOrigin-Name: 96ff2ba9c4bb71d5f7c6f359986a76a5364b7ac3e1a612441543a9eabecf31df
 2019-08-29 19:34:29 +00:00
dan
b6a9121bb3 Fix another case where SQLite assumes that if "~(? AND FALSE)" is true, "?" must be non-null. 
FossilOrigin-Name: 616f5663b3dbd0929128c0990fc6d8bba1513c7ae196b87c450ac0b3b3203ecd
 2019-08-29 15:50:16 +00:00
dan
1cd382e350 Avoid assuming that for "~ (? OR TRUE)" to be true, "?" must not be NULL, just as we do for "NOT (? OR TRUE)". Fix for ticket [c0390363]. 
FossilOrigin-Name: 84ae41fd2f50cb7c0c3f6522d0f94817e1bbf96eae5316279e3e32cee4e46e91
 2019-08-29 15:06:35 +00:00
dan
8085d53d3c Add support for "ORDER BY ... NULLS FIRST" and "ORDER BY ... NULLS LAST". Use this to fix ticket [f8a7060e]. 
FossilOrigin-Name: 94085fb3e756bc984237b74b6e29c68462ad860870c64dcb5124feaeec387660
 2019-08-27 19:59:21 +00:00
drh
7ec796d002 Add ALWAYS() to an always true conditional that results from the 
previous check-in.  Add a test case for ticket [dbaf8a6820be1ece] to
supplement those already checked into TH3.

FossilOrigin-Name: aff209804722ac902c7abfde80ad2677e0f51beb2c7f28f65d51105d984a1640
 2019-08-27 17:28:05 +00:00
drh
790b37a240 Omit the "x IN (y)" to "x==y" optimization of check-in [e68b427afbc82e20] 
(and ticket [e39d032577df6942]) as it causes difficult affinity problems
as demonstrated by ticket [dbaf8a6820be1ece] and the original assertion fault
is no longer a factor due to countless other changes of the previous 5 years.

FossilOrigin-Name: 7f5168a76a400fc2e1e40c6950470b1bfb38a0be54fc5518c17c29fdae7d8f1f
 2019-08-27 17:01:07 +00:00
drh
6397a78b2b If a TEMP TRIGGER references an auxiliary schema, and that auxiliary schema 
is detached, move the trigger to reference the TEMP schema before completing
the detach, so that the trigger does not hold a dangling schema pointer.

FossilOrigin-Name: 069c2f4c61f06211a8981abc412afcc1536ece13380b13a70aa99123f8f527cd
 2019-08-27 10:05:45 +00:00
drh
512e46a74c Merge in recent fixes from trunk. 
FossilOrigin-Name: ad816d01d4bd3908ff2c574d79d1a29b6d732df308f2f1b1cdf7c0bc7c1bd7cf
 2019-08-26 20:41:33 +00:00
drh
554a9dc78a Improved detection of number of column mismatch for vector assignment 
in UPDATE statements.  Ticket [78acc9d40f0786e8]

FossilOrigin-Name: bd4bda73df3794eef424eb13e08fc7cc54347d1ac69febaeec41f6b6cb4a42bc
 2019-08-26 14:18:28 +00:00
drh
a677eecad3 Merge fixes from trunk. Also fix a reference to the KeyInfo.aSortOrder field, 
which should now be KeyInfo.aSortFlags

FossilOrigin-Name: 63e625c8eb06720eef30573aa562e38c90d228a9cf493f8bb59f09e50f0e3168
 2019-08-22 19:35:24 +00:00
drh
0d950af311 Fix the likely(), unlikely(), and likelihood() functions so that they have 
no affinity, just like any other function.
Ticket [7e07a3dbf5a8cd26]

FossilOrigin-Name: 44578865fa7baf9760e355691ca9ce753295aaba7a4ee0bba29d4f85d9335bab
 2019-08-22 16:38:42 +00:00
drh
af8664020a Fix a false-positive in sqlite3ExprNeedsNoAffinityChange(). 
Ticket [ac184eb571d5e6e0]

FossilOrigin-Name: e62eddbb048cbc2c15cb8eeb5b7a907e7cb08c21a27ebba96a069f62dbcb0f30
 2019-08-22 11:11:28 +00:00