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26d61e5adfbc9e1a3955d1fb04a5f5f06ebfdb13
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1213 Commits

Author SHA1 Message Date
drh
0167ef202b Fix an obsolete comment that defines the meaning of one of the parameters 
to the sqlite3FindInIndex() subroutine.  No changes to code.

FossilOrigin-Name: 0c946f0846b2835f8facca806a4d4ecc2b2e97343de245a0d91716d998b2a829
 2019-09-02 01:25:07 +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
35a38e0836 Fix a harmless compiler warning. 
FossilOrigin-Name: 63c67a54b4d3e501f3059dcdfc6bb50c6b8dad63a34eb773e4408d9e4e780d7a
 2019-08-31 20:29:28 +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
drh
6a19865ff2 Remove some affinity tests that became unreachable due to the prior change. 
FossilOrigin-Name: e2db1123faac26c0e0b6a1ebef1685ea7633bfcafd1ff743ba5380700f7745af
 2019-08-31 01:33:19 +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
drh
f4d9c9822d Remove a faulty testcase() macro. 
FossilOrigin-Name: 80124ae55246b79023d23d3f55487ac3c0b40e8ff301c5daf4dd0631de8ddb29
 2019-08-29 23:24:18 +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
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
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
d86fe44ab5 Fix typo in a comment. No code changes. 
FossilOrigin-Name: d0cc06d8a30444125e5655f6587a6355471c3447c08a2e5f7a046a4ed5cc5f09
 2019-08-26 13:45:49 +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
dan
2ebb550824 Update this branch with latest trunk changes. 
FossilOrigin-Name: 6153bcf41a9aa0497f8210311c99ac23846223068f2b6a3a1c2d9dec7673c7e1
 2019-08-21 15:41:50 +00:00
dan
4780b9ad46 Fix a segfault that could occur following an OOM while processing a SELECT statement for which one or more of the expressions in the window frame declaration are themselves sub-selects that use window functions. 
FossilOrigin-Name: 75aec4fc886c04fe098828cc03bc72c197cbf40f0a1890fe5bbb98d4fd5c3c7e
 2019-08-20 14:43:01 +00:00
dan
ae8e45cb0c Fix problems with window frames that use ORDER BY ... NULLS LAST etc. 
FossilOrigin-Name: 75d665a494dd7d6e77d5a80af386ee5accc0a53416d5493424dc0fef6c7b01a0
 2019-08-19 19:59:50 +00:00
dan
9105fd5189 Prevent NULLS FIRST/LAST from being used in CREATE INDEX and other statements. 
FossilOrigin-Name: bb9767a287097a615aeb4abdba689b10e1a1c36c016c8e55905b508075e62c86
 2019-08-19 17:26:32 +00:00
dan
c324d44690 When populating an ephemeral b-tree for the RHS of an IN(...) clause, avoid applying an affinity to a value that may be used later on for some other purpose. Fix for [c7a117190]. 
FossilOrigin-Name: 43e8b14314d876178d487c3b519296ac1de065fdcaa70768e40d684015bceb9d
 2019-08-17 19:13:49 +00:00
drh
9e9a67adb0 Ensure the functions that appear to be constant are not factored out of 
expression that originate on the right-hand side of a LEFT JOIN.
Ticket [6710d2f7a13a2997]

FossilOrigin-Name: 500c9152daaf11cf69d778aa8592175f6088337c6667c59af6df3a24cd81eb0e
 2019-08-17 17:07:15 +00:00
dan
5b32bdff80 Merge trunk changes into this branch. 
FossilOrigin-Name: db1e60800bc260cdcd604739daaba72c6b486158123fc62a3898aca4ead33cd3
 2019-08-17 15:47:32 +00:00
dan
a3fcc000cb Ensure that SQLite does not attempt to process incompatible window functions in a single scan. Fix for [256741a1]. 
FossilOrigin-Name: 4f5b2d938194fab7627486e2ced633def2c90d9d3328e3700612feb9dbfa3d9a
 2019-08-15 13:53:22 +00:00
dan
6e11892db8 Experimental implementation of NULLS FIRST/LAST. This branch still has problems - the most significant of which is that ORDER BY clauses with a non-default NULLS FIRST/LAST qualifier can never use an index. 
FossilOrigin-Name: 07babb0f897fc8c9cb5b30481899c32fdd743f3f3ca508d8d957826252107dd5
 2019-08-12 16:36:38 +00:00
drh
14c865e859 Fix the sqliteExprImpliesExpr() routine so that it recognizes that 
"(NULL IS FALSE) IS FALSE" doe not implie "NULL NOT NULL".
Ticket [9080b6227fabb466]

FossilOrigin-Name: da01ba4fa47c6508b31533ccd769e637af04bd37f51463372fbc6c848d892a4d
 2019-08-10 15:06:03 +00:00
drh
915e434c35 Performance optimization to the new affinity handling logic. 
FossilOrigin-Name: c9724e761bce7a4ae63ce3c1408795915865e8d3024dcb90690456f724f0df53
 2019-08-06 15:18:15 +00:00
drh
96fb16eecd Use 0x40 (ASCII '@') instead of 0x00 to mean "no affinity" so that columns 
with no affinity can appear in a zero-terminated string.  Use the new
SQLITE_AFF_NONE macro for this new magic number.

FossilOrigin-Name: e8234f6939ccff4c10f741cf66d1c537cfebcbd0d1d79a618a64c755a7f087b5
 2019-08-06 14:37:24 +00:00
drh
1194904b81 Refactor field Expr.affinity into Expr.affExpr to avoid confusion with other 
fields and variables named "affinity" and display affExpr it in
sqlite3TreeViewExpr() output.

FossilOrigin-Name: a29f2a7d07beff64e489e8f824babc6228c4a499fadc0ee701caa60a63baadcd
 2019-08-05 18:01:42 +00:00
dan
e0ae3f69eb Fix a bug in the linked-list handling code added by commit [fd7316cd]. 
FossilOrigin-Name: 05080344dceafcfb670fbf01f7d69a1d713a54b6845f968a9cfe941fb53b13af
 2019-07-22 17:28:43 +00:00
dan
75b0821e99 Remove Window objects from the corresponding Select.pWin list when they are deleted. 
FossilOrigin-Name: d23f33168222dfa40a67dc7de58057418151989e81429e4af47617e86db04667
 2019-07-22 16:20:03 +00:00
dan
8b65e5919d When processing a BETWEEN or CASE expression, avoid transforming a node of the original expression into a TK_REGISTER node. Instead, take a copy and use it instead. Fix for [1be72aab9]. 
FossilOrigin-Name: 7ef7b23cbb1b9ace9f853238d9133320c153e6c3417e6823ab6394ee1fe56358
 2019-07-17 14:34:17 +00:00
dan
4f9adee289 Rework the FILTER clause implementation to share more code with window functions. 
FossilOrigin-Name: 5dac8c38dfc3f41c5c8fb49ca35de7fd1b21f269d72e8ba6ba59ed0a4030a54d
 2019-07-13 16:22:50 +00:00
dan
8117f113bc Minor performance improvement in sqlite3ExprDeleteNN(). 
FossilOrigin-Name: bcc8b38ac75b731a4cd2873ab83f423be036467a511b617c779869de9bbb5383
 2019-07-10 20:16:53 +00:00
dan
6ba7ab0d25 Experimental implementation of FILTER clause for aggregate functions. 
FossilOrigin-Name: 1f1ae2d6ac8dcbb62e5aa3dc17bc67d559cb565fc0d0a8c00a596075d35f8130
 2019-07-02 11:56:47 +00:00
dan
069d1b1faf Avoid transforming TK_COLLATE or TK_UNLIKELY Expr nodes to TK_REFERENCE. Instead, transform the uppermost Expr node in the expression tree that is not of this type. 
FossilOrigin-Name: ba7870e292919cf6c2f4b65b63fb0420ba2718eb0a797e0ba5302eec551a4238
 2019-06-16 08:58:14 +00:00
dan
6ece353f2d Handle expressions like "expr IS TRUE COLLATE xyz" in the same way as "expr IS TRUE". Fix for [4d01eda8115b10d1]. 
FossilOrigin-Name: 5c6146b56a75a94f4baa10e95407c54dd0b9314a57a8702a4b96b15c4d7ac48c
 2019-06-12 13:49:32 +00:00
drh
a7d6db6ac0 The affinity of the unlikely() function and its cousins should be "none". 
Ticket [0c620df60bffd9ef]

FossilOrigin-Name: 614ecb0af47038848e8ba2aed6b92db6f33ddc4aea6361795dbde440380f5a35
 2019-06-11 21:02:15 +00:00
drh
42be2ad30b Make sure the affinity of the RHS of an IN operator does not affect the 
outcome even if the RHS expression contains a COLLATE clause.
Ticket [57353f8243c637c0]

FossilOrigin-Name: 0f748fe58bbbb7ce3f30303da25ec811b2bbce249549aa9c7927979ac5b38013
 2019-06-11 18:07:53 +00:00
drh
8e34e4061b Add the new sqlite3ExprUnmapAndDelete() function and use it in place of 
separate calls to sqlite3RenameExprUnmap() and sqlite3ExprDelete().

FossilOrigin-Name: 36ea13e0a851a749c9ef292377ecd82dbd4797d38df907b362487fa234c98ca5
 2019-06-11 10:43:56 +00:00
drh
b854b76733 The ALTER TABLE command should not attempt to rename objects that are 
contained within an expression tree that has been optimized out because
it is the other branch of an "AND false" expression.
Ticket [533010b8cacebe82]

FossilOrigin-Name: 04bd5cb73287f926f1ecf578998fa6ce1379474e86918c692eae5778d0817cef
 2019-06-11 02:43:22 +00:00
dan
8ac02a94ab Update the sqlite3ExprCompare() routine so that it does not think "? IS NOT TRUE" is the same as "? IS TRUE". Fix for [d3e7f2ba5b3]. 
FossilOrigin-Name: 99eba69b3a64741c69d167bf7a05dbe138c9e7faecc54a1b8d8220cb23902830
 2019-05-20 10:36:15 +00:00
dan
7ac0e562a3 Fix an assert() failure that could occur in a join query if the RHS of an IN() operator is a list containing correlated expressions. This problem was introduced by checkin [e130319317e7611938] which was part of the fix for ticket [787fa716be3a7f650c] - so this commit is part of that ticket's fix too. 
FossilOrigin-Name: 778b1224a318d0137c7dab8361128f593506d3677267898119b934b4d66dfe38
 2019-05-18 21:22:25 +00:00
drh
c51cf8642f A new implementation for the sqlite3ExprImpliesExpr() theorem prover that 
does a better job of answering TRUE to "(NOT A) OR B" when B is a NOT NULL
expression.

FossilOrigin-Name: b3413197f57711f04102d8cc6ff1e8ddbe0f5f2bcb6e1989cf314fa97f0ff7f1
 2019-05-11 19:36:03 +00:00
dan
c6824c8d6c When considering partial indexes, do not assume that a "CASE x ..." expression implies "x IS NOT NULL". 
FossilOrigin-Name: 1b24303220b7b4f59520176a0150fc619c668865450b4fdaa9ce4113a56e9687
 2019-05-11 16:14:42 +00:00
dan
8f2b1e4c90 Do not assume that "x IS NOT ?" implies "x NOT NULL" when considering partial indexes. Fix for ticket [8025674847]. 
FossilOrigin-Name: 0ba6d709b50d92db1542f2ff30535a80184b00dadf759d51e5cae7a6e37b1764
 2019-05-11 13:04:33 +00:00