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7823 Commits

Author SHA1 Message Date
dan
fbb6e9ff48 Fix an assert() in window.c that could fail with some obscure SELECT statements that use window functions. 
FossilOrigin-Name: 83dc55679a91bf5d1d13706088ce58eed02b9aad1ad0ae237966e78e0d769663
 2020-01-09 20:11:29 +00:00
drh
87969b2a11 When doing a test-to-double conversion on a BLOB with an odd number of bytes 
and assuming a UTF16 encoding, ignore the last byte.
Ticket [9eda2697f5cc1aba].

FossilOrigin-Name: 1c76f1d8ec0937a2d2e4ce75f98494c953e9621db31945d7e44f45d90d1c3892
 2020-01-08 12:17:46 +00:00
drh
c9301e6e7c Fix the constant propagation optimization so that it does not try to 
propagate constant expressions that have affinity.  Ticket [82ac75ba0093e5dc]

FossilOrigin-Name: 6db1c3498f6bfa01bb460e62b802b63ec4bf43577a17a94e1e2fa0ecc1e64960
 2020-01-08 01:43:47 +00:00
drh
42925d1f1a Add an "|| CORRUPT_DB" term to an assert() statement inside of btree. 
FossilOrigin-Name: 03c1d75ddc063469fc856114595bd12d21759fe0979ce1ba1cf52e48e6b0d4a1
 2020-01-07 13:32:15 +00:00
dan
262efe4a43 Fix an instance of an undefined behaviour (a left-shift of a 64-bit unsigned integer by a value greater than 64) that could occur in fts3. 
FossilOrigin-Name: e1f12978b53683114ab0ef0e84a14dd4fabc72750b214aac19cd9da22a582a27
 2020-01-07 09:06:43 +00:00
drh
b592d47a81 Do not attempt to use the skip-scan optimization if prior terms of the 
index are already used for non-equality constraints.
Ticket [304017f5f04a0035]

FossilOrigin-Name: d7126a9ced86cb0934d5bde2bf535e6b529c361444c99e723f29dd3eb36e7044
 2020-01-06 17:33:09 +00:00
dan
9e10f9ab05 Ensure the SF_Aggregate flag on a SELECT statement is set if a DISTINCT is transformed to a GROUP BY. Ticket [9c944882]. 
FossilOrigin-Name: 1409758f72c0206cc48f9f7e789382472949523b7056ea46f8dcb93fd3ea60c6
 2020-01-06 17:06:12 +00:00
drh
2e5beddb34 Fix DBSTAT so that it returns now rows, rather than an error when the 
WHERE clause is "schema=NULL".

FossilOrigin-Name: 5b246b47aeadc25dbec0956e2d6edcd49fbe874a01734fdf15b770507648222d
 2020-01-04 19:14:48 +00:00
dan
664d80bbf7 Omit the omit flat from eq constraints on column "name" of dbstat virtual tables. Fix for [74a4c386]. 
FossilOrigin-Name: cfff5cb2279088aa66f435bd0d627b2c74c9a99ad9addfd44a4df8ba770b795a
 2020-01-04 18:38:58 +00:00
drh
64f7ee0219 Remove another NEVER added by check-in [7b62555e285f32d3]. 
Dbsqlfuzz found another test case.

FossilOrigin-Name: 481f4956aff52797880930752693a8c0b10d7fdd71d86919fe8ee13c90ad5b81
 2020-01-04 17:55:01 +00:00
drh
6f2180d21a New test cases in test/in4.test require rtree, so disable those tests on 
builds that lack the rtree extension.

FossilOrigin-Name: b5900914f7f34caf1a97c87233781d55467329b0ac4366354df13c6fd72a99c7
 2020-01-04 17:42:27 +00:00
dan
74ebaadcdd Fix a problem where the loop for the RHS of a LEFT JOIN uses values from an IN() clause as the second or subsequent field of an index. 
FossilOrigin-Name: 95ef68966c50f311830cba8c9257a4085c93011d205e0e31867c2917fa62a48e
 2020-01-04 16:55:57 +00:00
drh
f6ea97ea3d Fix a false-positive in the register validity tracking logic by moving the 
temporary register release call before the jump that uses that temporary
register.

FossilOrigin-Name: 9da48a5ca66dc67c8f7fb2d2471dac7ea696e35ecba5ddf65747d08d452436c1
 2020-01-04 15:21:47 +00:00
drh
4549a3b8cb Improve a testcase in test/fuzzdata8.db to make it more resilient. 
FossilOrigin-Name: 139aefe60097e06b43df35652e6b2183b7a4b03341d1bde23deada3fa3358fee
 2020-01-04 14:57:26 +00:00
dan
6fe63b4ee7 Omit the omit flag from eq constraints on column "aggregate" of dbstat virtual tables. Fix for [727074e2]. 
FossilOrigin-Name: 74ef6f2b6d9f50ff1d455e2263ba77707c1e8394b25b3f8a3a2a7b6e7f2c481e
 2020-01-04 14:00:56 +00:00
drh
e5cf3e990a Restore a NEVER and an assert in btree that was removed by 
check-in [7b62555e285f32d3].  Dbsqlfuzz found test cases.

FossilOrigin-Name: 04a05c83f58784df438dc6614f7920f782bf7c1ed4f6d101c03b6573cfde06ee
 2020-01-04 12:34:44 +00:00
dan
e455e3acf0 In fts3, avoid making a very large memory allocation if the merge-hint record is corrupt. 
FossilOrigin-Name: 9add58fe9688d5c1f675736e7f1c6ff7831d2ff6fdeb884a2e62c1bf9536ee50
 2020-01-03 20:16:32 +00:00
drh
0d21eae099 Improvement to check-in [7405e98225761180] so that missing or null filenames 
given to the zipfile extension throw an immediate error.

FossilOrigin-Name: 523e09bd228750fb7be1d4e68d18f6c1bf9db19293d66fbf30b86409321e9814
 2020-01-03 16:38:54 +00:00
dan
9a20ea9b5b Improve a specific case of early database corruption dectecion in the b-tree layer. 
FossilOrigin-Name: ceacc28b035803342764f9b696c1e80edcd259b87ea4fb46f92963d6cb33de3e
 2020-01-03 15:51:23 +00:00
drh
4c983b2f86 Remove an over-zealous ALWAYS() macro and add a test case that shows that 
the conditional can sometimes be false.

FossilOrigin-Name: 536e9a9d1bd514056ecbc8172ed58f2656a86f791a15e526ae2e5f2c93687b6a
 2020-01-03 14:34:04 +00:00
dan
607dd6e608 Fix a possible NULL pointer dereference caused by using a "VALUES(...)" as a component of a compound SELECT with non-integer ORDER BY clause terms. 
FossilOrigin-Name: 9d791116420f4e3f613775569e0a0cba2fc22da568b2fb2df920bcf9c9002938
 2020-01-03 14:27:08 +00:00
drh
90996885fc Fix the OP_Copy-coalesce optimization so that if the previous row happens 
to end with OP_Copy but is not a candidate for the optimization due to jumps,
then the optimization is correctly bypassed.

FossilOrigin-Name: b36126c1889e323c9a8f04b4f4884576993c845e7d393e5e73aaa6ab5158c1f9
 2020-01-03 14:16:43 +00:00
dan
aa328b6ab1 Ensure that when a Select object is reset a new, empty, SrcList is allocated. 
FossilOrigin-Name: 4889cbf898d7ec54f061b21b6d3621b22fc482cbeaa7115d40995a4cc30e41db
 2020-01-03 13:55:14 +00:00
drh
0cbec59c8b When generating the name of a view (or common table expression) because the 
SQL does not specify a name, avoid the names "true" and "false" which might
be confused for the boolean literals of the same name, leading to an
inconsistent abstract syntax tree.

FossilOrigin-Name: ff9492d3ff733c222ea67f23d478df1547641b5e2e6dd870b0b29e25c13f3739
 2020-01-03 02:20:37 +00:00
drh
0c4f82051c Do not allow the zipfile virtual table to start a transaction if no 
filename has been specified.

FossilOrigin-Name: 7405e982257611803792617f5d8142c54f9831b4a030f4de8607888c525e6289
 2020-01-02 21:30:13 +00:00
dan
9f3e6fadde Handle blobs that are the return values of functions being cast to text in utf16 databases in the same way as blobs read directly from the database. Fix for [771fe617]. 
FossilOrigin-Name: e782096aa06fcf410c3a0a6ee26a9e4f44333da39b28b2efe675814a8652911a
 2020-01-02 16:24:22 +00:00
drh
4cbd847a91 Fix the OP_Move opcode so that it correctly manages dependency tracking. 
This change impacts debugging builds only.

FossilOrigin-Name: 5377add4b8af8c52d0a32f5273835ac6bdc42cfb2a95ffcb335b987437a91aa6
 2020-01-02 15:02:08 +00:00
drh
629b88c683 Use OP_Copy instead of OP_SCopy to move the results of a scalar subquery. 
FossilOrigin-Name: 435c272dcf6ed5f3acb564b8f959557145f117b869547b670258cf5a1908ab6b
 2020-01-02 02:50:45 +00:00
drh
fc705da15d When generating code for a subquery, make a copy of the Select object and 
generate the code out of the copy, in case the code generator makes
modifications to expression and the Select object needs to be reused.

FossilOrigin-Name: 4edddcc0bc8d71e9b8abac67bc3766f1d9143dddd1f59264859ce65e5aa9b8c6
 2020-01-01 21:14:30 +00:00
dan
4ea562ee70 Ensure that when code for a scalar SELECT featuring window functions is generated more than once by the planner, separate ephemeral tables are opened for each instance. 
FossilOrigin-Name: ce1417325273aba866767349b55d9bbfb61a08e716bebda2122918a9657ee38c
 2020-01-01 20:17:15 +00:00
drh
aef8167421 Fix the sqlite3ExprImpliesNonNullRow() routine so that it correctly 
handles a numeric comparison of two AND subexpressions.

FossilOrigin-Name: 07e504d5174a1a8b1aa05ec5b44ac81ab3ea706c5a098caa88deb3d489cec8fb
 2020-01-01 16:43:41 +00:00
drh
171c50ec38 New test-only SQL functions: implies_nonnull_row(), expr_compare(), and 
expr_implies_expr().  The SQLITE_TESTCTRL_INTERNAL_FUNCTIONS test-control
is modified to toggle internal function access on and off for a single
database connection.

FossilOrigin-Name: 473892a8eceacf24d57fd0c72ff2a0b8be4e0d75e0af7a30bdb24fbc3b453601
 2020-01-01 15:43:30 +00:00
drh
1e732787da Set the SQLITE_DIRECTONLY flag on the fts3_tokenizer() function of FTS3, 
thus preventing that function from being called from within a trigger or
view.

FossilOrigin-Name: f3171dc22e4d3a40ca17fe609391d92fc6a997b775bfefa5947aec69c889aa73
 2019-12-31 18:12:36 +00:00
drh
02ff747bc0 The OP_ResultRow opcode releases the SCopy dependences on all its registers, 
as the values in those registers will not be reused.

FossilOrigin-Name: 1dc83c5d54ca2890112e735e336c209adb8d067d2f647e9f8ae5d58f84a52461
 2019-12-31 12:18:24 +00:00
drh
70d6b8327a Back out the NEVER() from check-in [40d10e7aad5b8992] because it is reachable 
after all. Ticket [892575cdba4e1e36]

FossilOrigin-Name: f481636f1a0333c6e98906e5d4433bf1d046380bc29c760e8e7e2c2b3530b956
 2019-12-30 23:50:19 +00:00
dan
2b6e670f73 In ALTER TABLE, rename columns and tables in expressions that are optimized out by the "AND 0" optimization. Doing this also fixes an otherwise harmless assert() failure. 
FossilOrigin-Name: a9e0354c992b0287608ddd18fd35fe7e6102a8f293d6e6e1b3488644bcda8168
 2019-12-30 06:55:31 +00:00
drh
7b14b65d20 Do not allow triggers that run as part of REPLACE conflict resolution 
during an UPDATE to modify the the table being updated.  Otherwise, those
triggers might delete content out from under the update operation, leading
to all kinds of problems.  Ticket [314cc133e5ada126]

FossilOrigin-Name: db4b7e1dc399c1f16b827ac087aa37c0815f4b2f41f1ffad59963eead2ab5562
 2019-12-29 22:08:20 +00:00
drh
be3da24134 Add the OP_FinishSeek opcode which completes an OP_DeferredSeek if the seek 
has not already completed.  Also add the sqlite3WhereUsesDeferredSeek()
interface to the query planner.  The UPDATE implementation adds an
OP_FinishSeek before running the final OP_Insert if one is needed.
Ticket [ec8abb025e78f40c] and also an assertion fault reported by Yongheng.

FossilOrigin-Name: 21ef6e99331210b80fa7c71b4f02e8f768a748d01aef884368af2f6b51a067e0
 2019-12-29 00:52:41 +00:00
dan
997d7434b7 Do not attempt to flatten compound sub-queries in a FROM clause into the parent if any component of the sub-query uses a window function. 
FossilOrigin-Name: eeb76f621de2f930a548db0fbb9fe25b4479b73581826b8dfa2e63cd1f1ab783
 2019-12-28 18:25:51 +00:00
dan
4adb1d0000 Change an assert() in where.c to a testcase() macro, since the condition may be false. This was a problem with the assert() only, there is no bug in release builds that omit assert(). 
FossilOrigin-Name: 82be135dee7ccfde5f8a67f3621b7ced449dce89bae9cadf025154a4de848c11
 2019-12-28 18:08:39 +00:00
dan
51f2b1719c Fix an instance where the planner might choose to use the OR-optimization when it adds no benefit. The same quirk causes an assert() to fail. This is not a bug in released versions - without the assert() the library still gets the right answer, it just does so less efficiently than it should. 
FossilOrigin-Name: f4bed1d7af8a94c6facd567dec5afae8865a5ad76b8834493099e5e30bed1132
 2019-12-28 15:24:02 +00:00
drh
7505123fe5 Two new test cases added to test/fuzzdata8.db. 
FossilOrigin-Name: 1be2c18f4021e1d0b8412ecb68a599475c717dd97c7db209fc4203358957fd70
 2019-12-28 11:55:44 +00:00
dan
43526f4ada Merge latest trunk changes with this branch. 
FossilOrigin-Name: d693be375380fbfca426999a77eeecb8453fa77b77f608bfe266945dee1da41d
 2019-12-28 08:33:46 +00:00
drh
d9670abb58 When an INSERT is receiving content from a SELECT, run an OP_ReleaseReg opcode 
at the top of each iteration of the loop in order to prevent spurious
OP_SCopy misuse complaints.  Ticket [de4b04149b9fdeae]

FossilOrigin-Name: 6afadd3b3a40b0ef29fd14fb24c2a4b9479483e5f8b9125ce02d8daae662207f
 2019-12-28 01:52:46 +00:00
drh
ad5f157791 Recompute the values for all generated columns after 
NOT NULL ON CONFLICT REPLACE constraints fire.
Tickets [37823501c68a09f9] and [5fbc159eeb092130].

FossilOrigin-Name: 4cc12c18860bc4801a407cf45e88e23d3d40391f01a461fbac2cac5f102100e1
 2019-12-28 00:36:51 +00:00
dan
a6c1a71cde Do not attempt to unwind the WITH stack in the Parse object following an error. This fixes a separate case to [de6e6d68]. 
FossilOrigin-Name: d29edef93451cc67a5d69c1cce1b1832d9ca8fff1f600afdd51338b74d077b92
 2019-12-27 20:54:42 +00:00
dan
b4b3630657 Remove a NEVER() that is no longer true. Fix for [36ffedcb9]. 
FossilOrigin-Name: 597896ed0ae9e2960a8f39576bd7f77a11dccc1da84b6a44ebb5c38d90ebc330
 2019-12-27 20:06:32 +00:00
dan
e3735bf466 Fix a problem involving window function aliases being referenced from sub-selects. 
FossilOrigin-Name: e3b5fc05c00fc58be7a7c94ce1d97a5b05113f39aba03df64aab08364f85616b
 2019-12-27 19:46:07 +00:00
drh
6473ba95a0 Add a missing "ifcapable rtree {...}" line to the window1.test test module. 
FossilOrigin-Name: 4e6fbb1a5100fe29209bcf668fbecf3a733034b84925265d8a15b0a84baf6cf0
 2019-12-27 18:15:04 +00:00
dan
431704375e Fix a problem with window functions in aggregate queries that do not have GROUP BY clauses. 
FossilOrigin-Name: 99609786f485653464d1caef1d207ae299d28c925bff3e8e94891759b4765dcc
 2019-12-27 16:25:56 +00:00