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21584 Commits

Author SHA1 Message Date
drh
c6b2f9e323 More documentation updates. No code changes. 
FossilOrigin-Name: a684d4ef08a48962c632b598242f5e34c9b2fa3ad6339023fbce8ac91582b5e3
 2020-01-13 15:25:43 +00:00
drh
3c867026c0 Documentation updates. No changes to code. 
FossilOrigin-Name: cc0e0aa3a7d534b806cdf63200b32ab3b7f0e08dde717f043a36d2f91c8a046c
 2020-01-13 13:33:08 +00:00
drh
3b8eb08b17 Better than removing the incorrect assert() is to change it into a 
testcase() together with a comment indicating where an appropriate test case
can be found, and the ticket that provoked the change.
Ticket [614b25314c766238]

FossilOrigin-Name: 3e3c60d8124672ff72a57dfa2e51276316bcac8c8ae8a5739da358f26924b0fb
 2020-01-12 22:38:17 +00:00
drh
d8df36bd4e Change the zipfile virtual table so that the xBestIndex method gives a 
reasonable cost estimate even if no filename is specified.  The missing
filename error continues to be raised in the xFilter method.  Meanwhile,
the more reasonable cost estimate avoids unnecessary wierdness in the query
planner.

FossilOrigin-Name: 0e468aa6decc73be307596782a778a739ff1b5dc0eb10fc4bd6776e460f99f8b
 2020-01-12 22:25:58 +00:00
drh
ca7d3e1d42 Remove an incorrect assert(). Fix for ticket [614b25314c766238] 
FossilOrigin-Name: 6a999c5aa0d1d5569a5bda50d27e3a15c13e93e69d00db97c5294901522064a3
 2020-01-12 22:20:07 +00:00
drh
ffe4d4a2d5 New apis: sqlite3_filename_database(), sqlite3_filename_journal(), and 
sqlite3_filename_wal().  Also sqlite3_uri_key().  And the other sqlite3_uri
functions now work using the journal or wal filename in addition to the
database file.  And the sqlite3_db_filename() result is guaranteed to work 
as an argument to the sqlite3_uri functions.

FossilOrigin-Name: fd7bcc53524096f5245e5ae04c12780d2c43b9b3af17ec529447aed21b82cc2b
 2020-01-11 21:08:59 +00:00
drh
cdfadc7948 Minor changes for consistency between sqlite3_filename_wal() and 
sqlite3_filename_journal().

FossilOrigin-Name: 9a70ff43a7b6848a71d5049f5a4ae24e3eb8a83d5c6651f5a9937abf03b3eccf
 2020-01-11 20:27:02 +00:00
drh
8080403e44 Redesign for better legacy compatibility. Add the sqlite3_uri_key() interface. 
FossilOrigin-Name: bcb43d11c4d0be36888c9e968ccdf85e7d7fccd72a29866f85c014e0562d4b93
 2020-01-11 16:08:31 +00:00
drh
8875b9e7b5 Rearchitect the way in which filenames are stored in the Pager object so that 
the sqlite3_uri_parameter() interface will work from journal and WAL filenames
too.  This check-in implements the central idea, and compile and runs somewhat,
but crashes on an extended test.

FossilOrigin-Name: 2ae77bd2335708343bce4541b4d2cf16edfe3fd5bc2dfb93757238c926aa960b
 2020-01-10 18:05:55 +00:00
drh
b2fe5a7c35 Fix to the register validity tracking logic in debug builds. No impact 
on release builds.

FossilOrigin-Name: 0a500da6aa659a8e73206e6d22ddbf2da5e4f1d1d551eeb66433163a3e13109d
 2020-01-10 01:05:49 +00:00
drh
e5f8801044 Documentation updates on newer APIs. No changes to code. 
FossilOrigin-Name: 8845a8c22a4ceabee130ce2addbe07e13b0496eeb542c89850f8658d21a48f89
 2020-01-10 00:00:18 +00:00
drh
2e22579dea Fix the fossildelta.c extension so that it will compile on mingw. 
FossilOrigin-Name: 20237d5dc4451f142b511e50a4acef4574cef17b9222c87dcebfe1ed1bab0ad9
 2020-01-09 23:07:21 +00:00
drh
bebce86cde Merge in the untrusted-schema enhancements. 
See [/doc/87aea3ab1cdda453/doc/trusted-schema.md|doc/trusted-schema.md]
for details.

FossilOrigin-Name: 5720924cb07766cd54fb042da58f4b4acf12b60029fba86a23a606ad0d0f7c68
 2020-01-09 20:44:37 +00:00
drh
32d184e049 Only register the fts3_tokenizer() function using a single text encoding. 
FossilOrigin-Name: 966964af1021feebc56cfda7b08bc787be7f447d682299f7958463aca30a73af
 2020-01-09 20:33:36 +00:00
drh
7be5e3dd4c Fix a harmless compiler warning. 
FossilOrigin-Name: edbf911fdeda14bd63cd752f6237896400eb5a65ef486abe7b91433621d21b5c
 2020-01-09 20:33:13 +00:00
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
b84fda37ef Fix a problem in the encoding display in the updated PRAGMA function_list. 
FossilOrigin-Name: 318ff7720bc60c30c0826becce424226e9cec25c1d59cb2cdb75793739322760
 2020-01-09 16:28:50 +00:00
drh
51ebd5fa14 Fix minor typos in the trusted-schema.md document. 
FossilOrigin-Name: 87aea3ab1cdda4533e6fed605d1295e83bae0bbb9e1b238d239ce158a0d42954
 2020-01-09 16:00:08 +00:00
drh
3858be3e59 Minor formatting changes in the trusted-schema.md document. 
FossilOrigin-Name: 55553b5e5ece8282f6a56a6f5c71024eaaef3c86ec42203af3da708b0de3643b
 2020-01-09 15:18:08 +00:00
drh
b0c4ef711f Design notes for the new-security-options branch. 
FossilOrigin-Name: af7c1ed4f8a7293d0ecacca3cfbe9414e0de5ec40b418ce7831b8dc724feb747
 2020-01-09 14:51:47 +00:00
drh
32266a1072 Simplified error message for the unsafe use of a virtual table. 
FossilOrigin-Name: d662129a601e05e8fca5717a890b5bc920b80a750d061f3c2494788d32b917a5
 2020-01-09 13:08:28 +00:00
drh
05b32ee3c0 Fix a problem that restricted edgy functions in TEMP tables. 
New test cases added.

FossilOrigin-Name: 8878c40753566a8c4ccd1d413019cabde7569b947f730527d13bfc3db384e97d
 2020-01-09 01:20:03 +00:00
drh
014fff20ad Block edgy functions used in DEFAULT constraints. 
FossilOrigin-Name: da434dc149786e4b1cd80b3b2b25f8b614d0dec62d5439f839a66b536999e398
 2020-01-08 22:22:36 +00:00
drh
2eeca2046e Performance improvements and test cases added. Allow "PRAGMA trusted_schema=ON" 
FossilOrigin-Name: 30882ca80f6c51f6bb7b2692c1ac3f19a7c61a23aa8730be79aec0ae3ef08d54
 2020-01-08 20:37:45 +00:00
drh
0dfa5255bc Check for whether or not it is safe to use non-innocuous functions as the 
function is being coded, not when its name is resolved.

FossilOrigin-Name: 1da802d54b689a462e1fe899c6ffa08ef14d34f36728b14b055b5a76b1edc274
 2020-01-08 17:28:19 +00:00
drh
15f3eacfc0 Provide the -innocuous option to the "db func" method in the TCL interface. 
FossilOrigin-Name: 0138652b6c2f21fd67e59a23a396a5b9d6a16ee9b44701cddfc49b23fddfce5b
 2020-01-08 15:44:10 +00:00
drh
6d35956c86 Fix the rot13.c extension to be deterministic. Add the noop.c extension. 
FossilOrigin-Name: a679122ca8ec95d5c8afba3a1a50170db9dd519a3810e56877b8f56e858d0175
 2020-01-08 15:43:29 +00:00
drh
b7e519956a In the TreeView debugging output, show a "DDL" mark on SrcList and Expr nodes 
that derive from a non-TEMP schema.

FossilOrigin-Name: fe7472fd2a70b4df6cb62041b72ed1638ba27ed1e6ceb8aaf56d1c8a82d91889
 2020-01-08 14:39:57 +00:00
drh
19ca76af38 Merge recent changes from trunk. 
FossilOrigin-Name: 5962921fceaf2ec645379a5f1d18e2c2c13abbf92cf64606caee69f45a21c500
 2020-01-08 13:08:52 +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
ded33ccea4 Fix a minor formatting error in the display of BLOB values during VDBE 
tracing.

FossilOrigin-Name: 295442887a3cd5868df26c5be244649ffb3bae8367f5cf02fe513424a1c9f6a7
 2020-01-08 11:36:30 +00:00
drh
4a62581b32 Improvements to the documentation of sqlite3_create_collation(). 
FossilOrigin-Name: fa866aec56deca8cc1b70814215bbdc683f41bc0826da0f8804d952de429820c
 2020-01-08 10:57:27 +00:00
drh
f8f76d672b Simplification of the logic in the constant-propagation optimization. 
FossilOrigin-Name: 1c3e5c20a9e6f501befa2bf6241a1b5190872bd83b765dac67065d252d04ea4f
 2020-01-08 04:36:01 +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
97bffe674f Fix a misworded comment. No code changes. 
FossilOrigin-Name: ee0bc7ede0fbf3e54bb934c0d580c62d7393c984cbc374ece6d57fe9211dac26
 2020-01-08 00:39:37 +00:00
drh
2b1c2aad9f Create the "trusted_schema" pragma. Add sqlite3_vtab_config() calls to set 
the risk rank for many virtual tables.

FossilOrigin-Name: 4c21373c21c9b17b222ae65297a039a035e6ec6b505c00c33704e3c03f94f834
 2020-01-07 19:45:40 +00:00
drh
3f68142b82 Enforce SQLITE_VTABRISK restrictions. 
FossilOrigin-Name: 3d87ff312e617a26846d482b423163cad9c222513f33e128f0fe348dda27c7c9
 2020-01-07 18:10:56 +00:00
drh
406dfcb843 Fix a performance regression caused by the previous check-in. 
FossilOrigin-Name: d7d98d3dff2f0e0cfa5bb8be8e5fd2af5ab470be399eafe3d77b23ee1262f70d
 2020-01-07 18:10:01 +00:00
drh
b77da374ab Invert the UNTRUSTED_SCHEMA setting to be TRUSTED_SCHEMA. 
FossilOrigin-Name: f5fcf1fbc6473f8e91315b14d67745f2748010641b7463d1f4ca51e6fdf97462
 2020-01-07 16:09:11 +00:00
drh
46d987405c Merge recent fixes from trunk. 
FossilOrigin-Name: 5dfa33a09e608d26549e46c58a5563754688af68fa99415f9a548e91f81aca7c
 2020-01-07 15:44:22 +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
cbae3f8c7d In the typeof() optimization in OP_Column, expand the size of the bogus buffer 
provided for data so that it is big enough to cover the increased number of
bytes displayed during register tracing from check-in [54553bf16fabd72d].
This is the correct fix for ticket [bbd55a97e66ff50d], though the earlier one
does not hurt and is useful to retain.

FossilOrigin-Name: e1154c39ba0f8caec70d330e6d5bec745c93ec9a7eafedb3e3730fadc8b8277c
 2020-01-06 20:48:45 +00:00
drh
1402b8e5b6 Merge enhancements from trunk. 
FossilOrigin-Name: 9c50f6c28a4cadb2c33954c066a8e94f8aaf4c31b6c0309db35efc472cb0bcaa
 2020-01-06 19:30:36 +00:00
drh
5ca06329c9 Rewrite the (debugging use only) sqlite3VdbeMemPrettyPrint() function to use 
the safer StrAccum interface rather than writing directly into a static string
buffer.  Perhaps this will address ticket [bbd55a97e66ff50d], which we are
unable to reproduce.

FossilOrigin-Name: 69f6a7e42f42116d29514239575ee1dc381b5b673da012cb5f3e8cf17922d493
 2020-01-06 19:23:41 +00:00
drh
2e26a602a3 Backout change [4d0b9109f7a5312d4e1] because the conditional it added is 
no longer reachable due to check-in [1409758f72c0206c].

FossilOrigin-Name: b3f2696705cc3e7b038f156423f808432a4680ea7e313dc15e34bdf6b1845655
 2020-01-06 18:59:46 +00:00
mistachkin
65cdae00ec Move variable declaration to start-of-block for MSVC. 
FossilOrigin-Name: 55c136ef61f23a04be1bf351ab7f6bdfa033653c32557a04916cc9770453f261
 2020-01-06 18:44:56 +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
2928a15b3c Refactor names of flags for improved legibility. 
FossilOrigin-Name: 411e8ec2219bb4181aaf2209fb1e7baf5e8df8b8c8adb82a69b48cf7e8e7e7d4
 2020-01-06 15:25:41 +00:00
drh
628b1a3f9e Remove a NEVER in btree due to a new test case from dbsqlfuzz. 
FossilOrigin-Name: 46f8ef70fb8b3ae00cc081b280f3dff38b1d0f1b52a8f4477ec89dec32e4d813
 2020-01-05 21:53:15 +00:00
drh
67c826536f Refactor the names of the new controls for restricting what actions the schema 
can take behind the application's back.

FossilOrigin-Name: 65d7d39a858c51ffd781f5a6335e029895e597aeb1e1ccdadea8ce79c8ad412f
 2020-01-04 20:58:41 +00:00
drh
337ca519e1 Enhance PRAGMA function_list to show internal functions if the direct use 
of internal functions is enabled via the SQLITE_TESTCTRL_INTERNAL_FUNCTIONS
test control.

FossilOrigin-Name: 7a8d7ca726666f4384925f959df0d58f7622229e06f1b5e643a3caccd539bb6e
 2020-01-04 19:58:28 +00:00
drh
0ad4f792a9 Merge all fixes and enhancements from trunk. 
FossilOrigin-Name: b878c30f03e895bbc5c4c99c0f727d49093bb78bdc275593cf4852148579ae69
 2020-01-04 19:19:54 +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
drh
17aceebab7 Fix harmless compiler warnings. 
FossilOrigin-Name: 8452fe03430d34abecab618d6136b863630f91d68d69ebbc115f808bc81c3817
 2020-01-04 19:12:13 +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
56ea69bf0e Record when the OP_IfNotOpen branch is and is not taken. 
FossilOrigin-Name: 182a898b14d585edd5fcfdcd6584c957911f0d81773d2868f16b5762dec031ca
 2020-01-04 18:33:20 +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
af23236660 Merge the latest fixes from trunk. 
FossilOrigin-Name: 26ef709a47294c512a70aecd37d29caecec2af261977d9fb2c4d78d09b12f77a
 2020-01-04 15:37:57 +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
drh
b2b61bb61f Back out another NEVER added by check-in [7b62555e285f32d3] - the test case 
was already in test/fuzzdata3.db, but it only occurs if compiled without
SQLITE_ENABLE_PREUPDATE_HOOK.

FossilOrigin-Name: 61f873b14c2c835f3d10b018b357cb8b1f041e97e05709d7ab5a8055e5e05349
 2020-01-04 14:50:06 +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
drh
79d5bc80c7 Enhance PRAGMA function_list so that it shows all instances of each FuncDef, 
the number of arguments, the encoding, the type, and the flags.  Use this
capability to locate and fix incorrect function flags in the standard build.

FossilOrigin-Name: 9ca906d24a2e88eddb2fd067783512b66cfc49dce1596d816a1c38a09d128218
 2020-01-04 01:43:02 +00:00
drh
4be621e1ba Invert the SQLITE_FUNC_SAFE bit to be SQLITE_FUNC_UNSAFE. The external 
bit is still SQLITE_INNOCUOUS.  It gets inverted as the appdef function
is registered.

FossilOrigin-Name: 1c266cb3be46d26e640752a99979acb1a1809361ba70ca3fca981c42383c360e
 2020-01-03 21:57:53 +00:00
drh
c4ad849921 When UNSAFE_IN_VIEW is disabled, only allow functions in views that are 
tagged with SQLITE_INNOCUOUS.

FossilOrigin-Name: 9ee79b254e4c51a2a41f7ed49ad389d8d7105e649483adb79772052fa0ade3c0
 2020-01-03 20:57:38 +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
3b76c45a7f Add NEVER macros to error-detection branches that were made unreachable 
(as far as I can tell) by check-in [ceacc28b03580334].

FossilOrigin-Name: 7b62555e285f32d354df7746ef8dce16856c6d9d53a02d895b74ba02362d2968
 2020-01-03 17:40:30 +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
9ee00200ef Merge fixes from trunk. 
FossilOrigin-Name: 002406df22995880d002be2e4cebb4d560283d4e0d7a4b5a34edcb110802b543
 2020-01-03 15:22:54 +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
e1f49b8850 Fix a problem in sqlite3TreeViewBareExprList() in which the routine was 
not interpreting the new ExprList format correctly.

FossilOrigin-Name: cd56872afbb4edeff2e8c1cb1c8d47c7a9b333b3fc416c20183250807291fae8
 2020-01-03 00:28:14 +00:00
drh
618ee33614 Merge enhancements from trunk. 
FossilOrigin-Name: 091403a6705f5f1352c76eacbfdca75fe0bab12ab9b156842641de07c38d3f66
 2020-01-02 23:50:50 +00:00
drh
24d35e409c Add the two-size lookaside memory allocator. Also, reduce the per-entry 
size of the ExprList object.

FossilOrigin-Name: 51665bf0f975fb248964a4be205a4f3285d3f3f8cc697977d264efefbbe20dd8
 2020-01-02 22:28:47 +00:00
drh
9fc1b9af36 NEVER() and ALWAYS() macros tagging unreachable branches. 
FossilOrigin-Name: 34b877742ef78e9bb3f16815180f4ad9cd722beb1d610f713400a3b25d68aa9b
 2020-01-02 22:23:01 +00:00
drh
378ca1eab3 Merge the latest enhancements from trunk. 
FossilOrigin-Name: bd57e6d923d3b04f0a07aaf18bf389d2b2b7efc7c57e8cb37e6ef910662d8397
 2020-01-02 21:41:59 +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
drh
6b559f3033 Fix some test logic in the OP_Delete opcode so that it works after a 
cursor-trip.

FossilOrigin-Name: 28900e5cab73f9edb9383d64a37e14fed0602966cb704ddffa60c0281698fd52
 2020-01-02 19:50:50 +00:00
drh
1b39aab08d Ifdef-out code that is only possible with the sessions extension. 
FossilOrigin-Name: 4fcf07f79672d203efbc90ad21d97f6a131c3885306f8e0bab015d5ac44b8644
 2020-01-02 18:37:04 +00:00
drh
3aef2fb1b4 Have the OP_ReleaseReg opcode also invalidate the registers if P5 is non-zero. 
FossilOrigin-Name: 937be22106f7e3f08712febd342d6cb81d129f2d5ab24ce80b3a5c3f9bbde54e
 2020-01-02 17:46:02 +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
22e95fbd74 Enhancements to aid testing and debugging: 
In PRAGMA vdbe_trace=on output, show pScopyFrom dependencies on register
values.  Add the sqlite3VdbeRegisterDump() procedure, callable from a
debugger, that shows the values of all registers.  Pass the VDBE pointer
into test_trace_breakpoint() so that sqlite3VdbeRegisterDump() is callable
from the breakpoint.

FossilOrigin-Name: 9886cb4b7987f720aa9d701222ab0987caa0ab8c5d216cb6e523c4a45366dfe5
 2020-01-02 14:42:42 +00:00
drh
52f11b885a Add the test_trace_breakpoint() subroutine that is invoked after each 
instruction is printed while running PRAGMA vdbe_trace=on.  Only works for
SQLITE_DEBUG builds.  Also add parameters "pc" and "pOp" to 
test_addop_breakpoint() to make it easier to set conditionals.

FossilOrigin-Name: 49a6368c384178653cb3ccb58cc8eff93327c16929bf79eeefeb13a4ce897153
 2020-01-02 13:26:49 +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
36e678bc39 The sqlite3WhereEnd() call now unwinds all Expr modifications made by the 
sqlite3WhereBegin().

FossilOrigin-Name: 7bfd42f1dc0c94f9bb74516e62fec8e39c20f4749f4e0972f66c2886d3c64f73
 2020-01-02 00:45:38 +00:00
drh
2a83c10072 Provide the -DSQLITE_ENABLE_INTERNAL_FUNCTIONS=1 compile-time option. Fix 
the ".testctrl internal_function" command in the CLI so that it does not
signal an error on a valid input.

FossilOrigin-Name: 8ee2ce92c082771675d0e8be597043cf9f0fd4f8a73d6a1498bf8743d6b3904a
 2020-01-01 23:02:35 +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