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19853 Commits

Author SHA1 Message Date
drh 38fa8c9bb0 Add support for read-only shadow tables on virtual tables. Added the 
SQLITE_DEFAULT_DEFENSIVE compile-time option that can put SQLite in 
defensive mode by default.

FossilOrigin-Name: 9c685171c4d7ae8615d1489c9621aba79fe4ef1f0e56b75823b88c3e70d127df
 2018-11-10 18:23:32 +00:00
dan d01372f1b8 Add the "changesetfuzz" program. For fuzzing changeset blobs. 
FossilOrigin-Name: 2bae0e7c1c1393aeb0bb7234865e410c9ca0e3c31cdc8566e9503f70ca7ac64c
 2018-11-10 17:37:39 +00:00
dan ad5bafa699 Merge latest trunk changes. 
FossilOrigin-Name: b6d549c988e765789c4a81d586170451db9f5da1973dde8aa0329445f915fbb2
 2018-11-10 17:36:55 +00:00
drh ab0659fdab Remove a NEVER() that is reachable after all. Reverts checkin [9292d3351c40339]. 
FossilOrigin-Name: c5dc7fb873b15bd4e4f31b944c9feee78ab7ec2cb74f5fc55b615fd0e2784a88
 2018-11-10 04:14:51 +00:00
drh 1ca9a8b9df Merge fixes from trunk. 
FossilOrigin-Name: bf88efcec40036e0805940ff6371643dbc518442457d2bc18c711753607ae36c
 2018-11-10 03:47:40 +00:00
drh ac4b8dea9b Fix invalid use of unprotected sqlite3_value objects in the sqldiff utility, 
when using the --changeset option.

FossilOrigin-Name: a8d65214a567eb1afd703ee4d09d398247e060a610b46097a726364db2861001
 2018-11-09 23:41:57 +00:00
dan b430701823 When a table is renamed using "ALTER TABLE RENAME TO", update any REFERENCES 
clauses that refer to the table, unless "PRAGMA legacy_alter_table" is true
and "PRAGMA foreign_keys" is set to false (i.e. so that when "PRAGMA
legacy_alter_table" is set behaviour is still compatible with versions 3.24
and earlier).

FossilOrigin-Name: ae9638e9c0ad0c366f93c88a850f6b4cc86881e9f3f9f1e39574d9d83ddd8a6a
 2018-11-09 20:04:05 +00:00
drh 0b57d312b7 Fix for ticket [787fa716be3a7f650cac] 
FossilOrigin-Name: 531eca6104e41e4301fa2cf58bb8fec811da31e151a0f766c93aece5521d235b
 2018-11-09 14:17:51 +00:00
drh 145d0a35d9 In the treeview.c module, break out the display of SrcList into a separate 
subroutine, so that it can be invoked while debugging.

FossilOrigin-Name: 8c74065f0031274d9bc711d5d53c39aefcfb2b2679811105974a2c7c7a9e1dcb
 2018-11-08 22:53:06 +00:00
drh 635b4ce5f7 Improved documentation for SQLITE_DBCONFIG_DEFENSIVE. Add a NEVER() macro 
on an unreachable branch.

FossilOrigin-Name: 9292d3351c40339de7ad6bc26c02e7592e6cdee2592e0c790fae63ccf21ea88c
 2018-11-08 17:32:50 +00:00
dan dbc1e9e6a8 Add tests and a fix for program "changesetfuzz". 
FossilOrigin-Name: 09b90db56c2d5e3aceae59c6bf1eb07f9db9ef38da29d2162046b88d39e47b86
 2018-11-08 14:59:51 +00:00
dan be075d1188 Merge latest trunk changes into this branch. 
FossilOrigin-Name: 53cd91d00594f1bd7c0a565a35ec9cac3095a583022d6211158a369e942257b0
 2018-11-07 20:13:45 +00:00
dan 5704f455b9 Fix minor issues in the changesetfuzz program. 
FossilOrigin-Name: 5c7f024073bc93089f038b5cf122a7a9d5b933f7c1b357f6d20ae925739ffc38
 2018-11-07 20:07:28 +00:00
dan 7844d21536 Update the "changesetfuzz" program to work with patchsets as well as 
changesets.

FossilOrigin-Name: 75b00fbe884d4bd8ba099d7c0a2e8af2f40fedfdef2d9b624dd51cb66952611c
 2018-11-07 17:52:29 +00:00
drh e1857cc015 Performance improvement in subroutine that decides whether or not a table 
is read-only.

FossilOrigin-Name: 6e4968b00507c4fdbe7e3c91f3f9cd61c6f1848092ddcf306f9fcb101a47fce7
 2018-11-07 16:46:43 +00:00
drh b39dd52adb Merge the onefile permutation fix from trunk. 
FossilOrigin-Name: e543bff87d1efc31a5b863085c056ce06c365cc7d9d3fef0ced7521bde536783
 2018-11-07 16:12:34 +00:00
drh b7c2cf0aaf More test-case adjustments for defensive mode. 
FossilOrigin-Name: 911e8a17a3810cd7042e91a32aba80dc3d6be88320c208e48f7bcee8b22a0ff2
 2018-11-07 14:41:08 +00:00
dan 9db4828662 Fix a problem with the handling of SQLITE_FCNTL_PRAGMA in the test_onefile.c 
demo.

FossilOrigin-Name: 13e21b7da8fe754e230b09ca0b9f1f69cd9aa20d4407ddd8b95ca3fb18c9abeb
 2018-11-07 14:39:22 +00:00
drh 6b758e1d96 Merge the permutations fix from trunk. 
FossilOrigin-Name: b753d849fe0524e14ae9367a47e29be76332fafb77bfe13e266aeef1ef6742ce
 2018-11-07 13:41:27 +00:00
dan 7d0fa14c03 Partially revert [3e1a2f661], as some test scripts require separate $presql 
and $dbconfig variables.

FossilOrigin-Name: cbf85284beb60d068b446c52f000d694a810d4de9096ad2951523a4c88e7334c
 2018-11-07 11:56:23 +00:00
drh 6ab91a7a7a Add the SQLITE_DEFAULT_DEFENSIVE compile-time option. Fix up test cases 
so that they work with DEFENSIVE enabled.

FossilOrigin-Name: 3212733cb6d1a59516d67a86df7c7b1d2456a1b2e5d7080c26b0e87b2609c65d
 2018-11-07 02:17:01 +00:00
dan 005d4c61c1 Update the changesetfuzz program to fuzz changeset schemas as well as data. 
FossilOrigin-Name: 141a93c843d501d8bb640228645ead0a83870c1c11e9d4b07ed24b296c69a0b8
 2018-11-06 20:08:03 +00:00
drh 0f0d3ddf71 Enable DEFENSIVE mode by default for tests. This requires lots of case of 
turning DEFENSIVE off in order to dodgy things to the database for testing
purposes.  No all of those cases are yet handled, so "make test" does not run
to completion.

FossilOrigin-Name: a1d6c6712c3304fd736077432c8c180692cf7d79be7f3a073510b6dab0eb951f
 2018-11-06 19:26:04 +00:00
drh aef15e74c8 Turn on defensive mode for running test scripts. Does not yet work. 
FossilOrigin-Name: 1c1d24edbb732f2a2002a741c7a7afdd010b67e1b5e6d90ff36c6428897e7612
 2018-11-06 15:57:59 +00:00
drh fc25721c9e Only allow shadow table to be written from within a recursive SQL call. 
Omit the SQLITE_PREPARE_SHADOW flag.  Some tests are failing because the
tests depend on being able to write to shadow tables.

FossilOrigin-Name: d890c6582524677666e6f5b5817331dec332ade16b2f744cbb8a3c7dd9b63e21
 2018-11-06 14:03:07 +00:00
drh 5a65470300 Add enforcement of read-only on shadow tables. This does not currently work 
since some virtual tables are attempting to update shadow tables using
sqlite3_exec().

FossilOrigin-Name: f79b47c9859de597d5924870752dd7cab89c8f0608e5cceb2281f6ffb2e91930
 2018-11-06 13:37:20 +00:00
drh 84c501bac1 Initial code to make shadow tables read-only to ordinary SQL. The now 
xShadowName method is added to the sqlite3_module object and is used
to identify potential shadow tables.  The SQLITE_PREPARE_SHADOW argument
to sqlite3_prepare_v3() is defined.  It is designed to permit writing to
shadow tables, but is currently an unused placeholder.

FossilOrigin-Name: 31942b3dd3f66eb0d9977bf1cadc2f2d7be7967cce2b55784be0b939dfef1985
 2018-11-05 23:01:45 +00:00
dan f095a1affb Add preliminary version of "changesetfuzz" program. For fuzzing changeset data 
without creating corrupt changesets.

FossilOrigin-Name: 81ac8745faac0bda8d68ac113f1938f0e25208642e8ceb2af452680086454cb5
 2018-11-05 20:37:33 +00:00
drh 2d13f6016b Add the SQLITE_DBCONFIG_DEFENSIVE flag. 
FossilOrigin-Name: 11d98414eac467affb0b3cf0c7e5cc3d43184fc2b6e7e898bb5277b51ea9e1fa
 2018-11-05 19:37:30 +00:00
drh 9196c81406 Eponymous virtual tables appear to exist in all schemas. This is an alternative 
and improved fix to the eponymous virtual table in trigger problem that
was previously addressed by checkin [1fa74930ab56171e].

FossilOrigin-Name: b8d35c4a7c99ce3753761e5b81269d52c3c910c603fa70b72549883ba68bc485
 2018-11-05 16:38:10 +00:00
drh 383bb4fa62 Disable the IS NOT NULL optimization when the IS NOT NULL operator is part 
of the ON clause of a LEFT JOIN. Fix for ticket [65eb38f6e46de8c75e188a17ec].

FossilOrigin-Name: af39661e60f562b9eb10343fd83e8fe21be4d7276111e7853c1179a24cab09ce
 2018-11-05 07:53:17 +00:00
drh 0f1c2eb5f2 Correct the internal logic for SQLITE_DBCONFIG_DEFENSIVE. 
FossilOrigin-Name: 76094345821246c887a31a234b339d03a78eddbb9fab33b06c3c20797c038349
 2018-11-03 17:31:48 +00:00
dan 29d77dc450 Add extra defenses against strategically corrupt databases to fts3/4. 
FossilOrigin-Name: d44318f59044162e229a444582692e9788f17b5c404b4eb702f4c2114b22fefe
 2018-11-03 16:51:30 +00:00
drh a296cda016 Add the SQLITE_DBCONFIG_DEFENSIVE flag. 
FossilOrigin-Name: af3f29d49359af2291b1d9e06e0db76fd000fbd24b4ac84d2668a0d1322efd83
 2018-11-03 16:09:59 +00:00
drh c6e519f335 Fix a assert() in the query planner that can arise when doing row-value 
operations on a PRIMARY KEY that contains duplicate columns.
Ticket [1a84668dcfdebaf12415d].

FossilOrigin-Name: dcb8c73594ea6b12bad98dc883a585d3e6b925c2ead267dc40332b3d266db5e8
 2018-11-03 13:11:24 +00:00
drh 147ad061f6 Enhance triggers so that they can use table-valued-functions that exist in 
schemas outside of the schema in which the trigger is defined.

FossilOrigin-Name: 1fa74930ab56171e2e840d4a5b259abafb0ad1e0320fc3030066570a6dd10002
 2018-11-02 17:38:39 +00:00
drh 7301e77402 Deploy the sqlite3Strlen30NN() function (argument guaranteed to be non-NULL) for 
a small performance improvement.

FossilOrigin-Name: 4a6ad5190b62020d97a7de02c801544f20b7b98145ceff14af1f2834d3057f9c
 2018-10-31 20:52:00 +00:00
drh a60c63013e Add support for the SQLITE_PREPARE_NORMALIZED flag and the 
sqlite3_normalized_sql() when compiling with SQLITE_ENABLE_NORMALIZE.
Also remove unnecessary whitespace from Makefiles.

FossilOrigin-Name: 790ea39a6585ea9f4dad9e132e1fb0447ac1558f728196580d2c3edee84823f7
 2018-10-31 19:01:13 +00:00
drh f8181eaa20 Tweaks to the test_intarray documentation and tests. 
FossilOrigin-Name: 7107f0dacf4467430d1ca157cb848dde984e48e529e7d67a88b7594b0f8159c9
 2018-10-31 18:24:29 +00:00
drh 05209e9021 Merge fuzz test cases computed by dbfuzz2. 
FossilOrigin-Name: e0d30c1862884049098e1fa9b7c228ff8318a40c09e2516ef2dc8db22e2048e2
 2018-10-31 01:12:06 +00:00
drh 49272bc728 Improved corrupt database detection in the relocatePage() routine of 
the b-tree module.

FossilOrigin-Name: d57873337a2a7a0d717dc7726cd2682b5bea594d2d1ff8f16c2485161fcd6b16
 2018-10-31 01:04:18 +00:00
drh c985c2822c Add new fuzzer cases generated by dbfuzz2. 
FossilOrigin-Name: 79fdad8b42869100845eed36224602452486d0166c18cec7d343040fdac7379e
 2018-10-30 23:45:18 +00:00
dan b74cf4b6ea Update comments in sqlite3session.c to describe the format of "rebase blobs", 
as well as changesets and patchsets.

FossilOrigin-Name: bf93f7b56b1d15682988daf3f1c293caf755433defdecd52ba8782fc40e92bd7
 2018-10-30 19:14:16 +00:00
drh fd748c6460 Split the SQLITE_WriteSchema flag in two flags, WriteSchema and 
SQLITE_NoSchemaError.  Set only WriteSchema on a VACUUM to avoid problems
when trying to vacuum a corrupt database.  With this change, the size
of the flags field on sqlite3 must grow from 32 to 64 bytes.

FossilOrigin-Name: 4f9878107a54356b7105fa1db7655ee239685d570436f6ad4d4221c9bd829b3d
 2018-10-30 16:25:35 +00:00
drh a751f39c3f Modify the CLI so that the --deserialize option is only available if it is 
compiled with SQLITE_ENABLE_DESERIALIZE.  DESERIALIZE is now off by default
for the main.mk makefile, but on for Makefile.in and Makefile.msc.

FossilOrigin-Name: 90b2a684f775e1468d63bf950119cf0aaa62b5a449f518e7cc513c314191dd14
 2018-10-30 15:31:22 +00:00
drh ad9bfa5e07 Improvements to the -fsanitize=fuzzer based database file fuzzer. 
(Cherrypick from the rubust-against-damaged-db branch.)

FossilOrigin-Name: 3cc01a0eaf54e3d5adf206825cfcab15edf73bd5aea10dfc497efd78071a17d0
 2018-10-30 15:20:35 +00:00
drh 2b3c4af553 In the CLI, when opening a file that begins with the normal SQLite prefix, 
open the file as a normal database even if it has a ZIP for AppendVFS record
at the end.

FossilOrigin-Name: 7989bbda70a24611c3b8af96a53114bb53d87a2e1145ec7ad4f1b4cbf8d6040c
 2018-10-30 14:36:21 +00:00
drh 60f34ae091 Enable sqlite3_deserialize() in the CLI. The --deserialize option associated 
with opening a new database cause the database file to be read into memory
and accessed using the sqlite3_deserialize() API.  This simplifies running 
tests on a database without risk of modifying the file on disk.

FossilOrigin-Name: 5e0129ee9afa7c2d707f8ac9e29ef3583c49bb1d0965085c067d58f828ac8cdf
 2018-10-30 13:19:49 +00:00
drh f4452cfbed Fix a potential assertion fault that can occur while trying to DROP a table 
from a corrupted database file.

FossilOrigin-Name: 147a9429a558cf34c316ab8f87832e97caff55d92df696ab6fd045466c8c663d
 2018-10-29 21:01:28 +00:00
drh 5aa20378f7 Fix minor memory leak in the dbstat extension that can occur following an 
attempt to analyze a corrupt database file.

FossilOrigin-Name: cb874fd87384be397008e953242d5773ef5d64e07c3e1ae352a42a25d70597b4
 2018-10-29 18:33:42 +00:00
mistachkin 8bee11a41e Add the sqlite3_normalized_sql() API. 
FossilOrigin-Name: 592b66e8058dd03a056a036e2606247c9efdb06d15eebe9bcc455f7f55e30ae6
 2018-10-29 17:53:23 +00:00
dan dbe7d37ae8 In the sessions module, avoid collecting rebase data if the user has not 
requested it.

FossilOrigin-Name: de72a773dd3ad58a7f2233e1fc06bf60deb8892a2719ea8e9b42e7d592c1279f
 2018-10-29 17:08:27 +00:00
drh f888158c7f Harden the dbstat extension against corrupt database files. 
FossilOrigin-Name: a0d47f25ae7bdf98f5b853f23776b3bf86bea7c0dda386664c1e3b1c363c518f
 2018-10-29 16:07:10 +00:00
drh d811d844cd Improvements to the dbfuzz2.c test module. 
FossilOrigin-Name: d60eff493b875366981c5a25000bb65cde9f6e628192914910790acc562c17b9
 2018-10-27 21:06:44 +00:00
drh 977e5dcd07 Add an entry in Makefile.in to build dbfuzz2 using clang-6.0 with 
-fsanitize=fuzzer,undefined.

FossilOrigin-Name: a4a083ed8cdb106af661d2ee0203e21c576f5c2304419ce603826e4f2851c2e0
 2018-10-27 16:02:16 +00:00
drh 65da285e6a Initial code for a fuzzing tool on database file that works with the 
-fsanitize=fuzzer option of clang.

FossilOrigin-Name: 90d12094d36957fbded71545add8a5dc206798fdacc17d4d161d715569a7f991
 2018-10-27 00:47:33 +00:00
dan 1f48e67db1 Add the sqlite3session_config() interface. For configuring global parameters 
belonging to the sessions module.

FossilOrigin-Name: 1e69f3ff057b0be27a9e79842de2485f8299799f309e89bfa7597dd688e0975b
 2018-10-26 17:05:00 +00:00
dan f689400dc7 Prevent an == constraint specified using the table-valued-function argument 
syntax from being used to optimize any scan not related to the virtual table
for which it was specified as an argument.

FossilOrigin-Name: 4d46685f282409f7154be288719cbea4b743d7ea5315a55a91462003497469f7
 2018-10-26 15:36:53 +00:00
drh 8e5bfedd22 In the WHERE-constraint propagation optimization, if there are duplicate 
constraint, make sure only one of them propagates.  Proposed fix for
ticket [cf5ed20fc8621b165].

FossilOrigin-Name: 5d5b596f152bb2781011a05f75f9e200774d4f69d648ef68de577b4ace973e07
 2018-10-25 14:15:37 +00:00
drh e23d05e807 Add the ENABLE_GEOPOLY case to the compile_options pragma. 
FossilOrigin-Name: de940296d227c96db4d0cf913fc5c0e5138729eda7cda0a0ac6b704cce1e1e1e
 2018-10-24 23:55:41 +00:00
dan 0f5f54062c Fix a problem with using window functions in compound (UNION, INTERSECT etc.) 
queries.

FossilOrigin-Name: 059ff53a46c7f1e4bf3e7dc558312beef67826c2753e2ab7e4e7df498b37b617
 2018-10-23 13:48:19 +00:00
dan 46de072880 Add the sqlite3changeset_start_v2() - a new version of _start() that accepts a flags parameter - and a streaming equivalent to the sessions module. Also add the SQLITE_CHANGESETSTART_INVERT flag, used with start_v2() to invert a changeset while iterating through it. 
FossilOrigin-Name: cbedcb9aaefdfe00453efbdf0eac6c15e1f53bbe8fff2e7d534a5adf23be04f5
 2018-10-20 13:48:09 +00:00
dan 9c18ef09a5 Take steps to avoid a potential integer overflow in sessionBufferGrow(). 
FossilOrigin-Name: f7affa2e708d1b4c7c47157bcb18e9f79611ca45a93ebc88de6dc96f84a677e7
 2018-10-18 15:17:18 +00:00
dan 44748f27a6 Add the SQLITE_CHANGESETAPPLY_INVERT flag to sessions. For inverting and applying a changeset in a single step. 
FossilOrigin-Name: d4b6406e7f5ba06ac73ab9fdef57232b2459e0af12420ed946ebed6aef46f0b1
 2018-10-18 14:59:21 +00:00
drh bafad06139 Test case modifications to support SEE. 
FossilOrigin-Name: 02b6f8f2778c371130c512e980c3db07c7e76dcf7dd92a878b86e4b6a47ca307
 2018-10-12 15:01:56 +00:00
drh fa5c62ef2e Add the textkey and textrekey pragmas. 
FossilOrigin-Name: f03164d45450cd7ff2162999aa9e51eec7fb5e7cab1fa83d876b544f8f841097
 2018-10-11 18:41:50 +00:00
drh e93f82658a Fix harmless compiler warnings in the CLI. 
FossilOrigin-Name: 1916d2912a4ef5c251853de3c9d66417e20f0c0fc8ddfbc84c131dfd798439f6
 2018-10-11 16:53:37 +00:00
drh 53f5f00762 Always reset the pager before changing the codec. 
FossilOrigin-Name: 0bf0fd242b93c3bd308ab46db1be9edef141b89db07a0f5a4ed8b23c963da0d5
 2018-10-11 16:38:56 +00:00
drh f7f2a82aa0 On the first connection to a WAL-mode database that was not cleanly shut down 
and contains a left-over -shm file, truncate the -shm file to 3 bytes instead
of to 0 bytes. Avoiding a truncation to 0 means that system monitoring tools
can better detect if a process illegitimately tries to truncate a -shm file.
Such a rogue process might think it is being helpful by cleaning up old files,
but there is a race condition that can cause damage to the database.

FossilOrigin-Name: 90cf32cde072a305f30c75a71665d1f9e23e805c0a49f5306f015c056dd70f0c
 2018-10-11 13:51:48 +00:00
drh 1dbb147598 In the CLI, fix a file descriptor leak following OOM and a missing va_end() 
call.

FossilOrigin-Name: ec36d15a9e349f4295a9e2215dea0a18e9276e0e4ce2d05021e6b467ab7763bb
 2018-10-11 10:37:24 +00:00
drh b6c4d59e89 In the unix VFS, fix the heap shm allocator (used for unix-excl) 
so that it works even on systems where the page size is larger than 32KB.

FossilOrigin-Name: 7fbb083c5cf0948af3624b7538ffa086f77de27a3e84a7039ae7d6574f1a3a54
 2018-10-11 02:39:11 +00:00
drh a9e4be3b08 In the CLI, allow the SQLITE_HISTORY environment variable, if it exists, 
to specify an alternative file in which to store the shell edit history.

FossilOrigin-Name: 696e82f7c82d1720756078e73f3b15b4cafc202ec290e66f9095a3246c65a3cb
 2018-10-10 18:56:40 +00:00
drh 7dd630a893 Fix an issue with the new memstat.c extension. 
FossilOrigin-Name: ce6e80b1303ed161bec2c63735cd2e2bea7b4e9b4ff780d214d408b1a30d50da
 2018-10-08 20:04:16 +00:00
drh 5f8cb730af Replace the new geopoly_reverse() function with geopoly_ccw(). The 
geopoly_ccw() function only reverses the vertex order if doing so is necessary
to get the correct right-hand winding rule on the polygon.

FossilOrigin-Name: 075066944b13b18d339ccf87ae16f0b91bf00f40bd70f71c6beba6aa6c43f0b6
 2018-10-08 18:55:56 +00:00
drh bc36320f02 Add the geopoly_reverse() function to the GeoPoly extension. 
FossilOrigin-Name: 690dd18a5768c5a8cdfa92d5b01901c1a7b1fb6ebb90399f56a3112e41609f92
 2018-10-08 12:58:59 +00:00
drh 488cddfa86 Fix the ".help -all" option in the command-line shell. 
FossilOrigin-Name: aac8f1dff0728c629b5cbf30369ee91c5862a707ede694dc2628d1d4f5a6c202
 2018-10-06 14:38:17 +00:00
dan 07052d5535 Add test cases and assert() statements to ensure that the authorizer is being 
called as expected from within ALTER TABLE.

FossilOrigin-Name: ff10d2c7de430c88167b1e6e4f5307eee5d69e22c8d24b2ef4fcb3aea25a92e1
 2018-10-06 13:46:22 +00:00
drh bebf54438e Changes to geopoly to silience false-positive warnings coming out of clang. 
FossilOrigin-Name: 11d9015f31d1ea2fd27174d4ceea08a145fdbb92a175bec0aae4b90f991694bc
 2018-10-05 15:10:00 +00:00
drh f470c37a2b Add an ALWAYS on an unreachable branch in the ALTER TABLE logic. 
FossilOrigin-Name: ebcd4523171f0988ff08e2bf36fb8a0caa40efe7ac7556b4eb206784969b03e4
 2018-10-03 18:05:36 +00:00
dan 60bdcf5e56 Change a type in shell.c.in from "int" to "sqlite3_int64" in order to 
avoid a compiler warning and possible integer overflow.

FossilOrigin-Name: bf0a6634cd8f9457992b8da522a6775a304156815bf6f4f64f96016356baa870
 2018-10-03 11:13:30 +00:00
drh 9b7e8e10f2 Add an additional assert() verifying mutex invariants on the 
unixShmSystemLock() routine in the unix VFS.

FossilOrigin-Name: cb1511065d5348c5b3015dc9d690fc5d519a14ffdfa7164bb552a4fa686ad142
 2018-10-02 20:16:41 +00:00
drh 8820c8d3ee Additional field name changes and commit fixes associated with shared-memory 
locking in the unix VFS, to improve maintainability.  No logic changes.

FossilOrigin-Name: 9280774a4bbc665d70f346d258768cbcca3e0e77791473aecfd7d0e87810ab31
 2018-10-02 19:58:08 +00:00
drh 24efa5444d Fix comments and refactor some names associated with shared-memory locking 
in the Unix VFS.  No logical changes.

FossilOrigin-Name: 3e9f1635271c92dce5324728b4ee1cc1a1856ec3c60b1b512a652c21e010e63e
 2018-10-02 19:36:40 +00:00
drh ba160891de Add the "PRAGMA table_xinfo" command that works like table_info but also 
shows hidden columns in virtual tables and adds the "hidden" boolean column.

FossilOrigin-Name: defa0515b8fd50ed9be699542f8c6695dd4a60c02f310665db6657ec5b6b67d0
 2018-10-01 21:41:15 +00:00
drh bfbf7d9daa Test case for PRAGMA table_xinfo. 
FossilOrigin-Name: 7694b9bc3003db6ba0b41c5029c8f7b84c07724e7a518e835e98b3c46e4ea227
 2018-10-01 21:36:38 +00:00
drh bdc9744f60 Change the name of the pragma to PRAGMA table_xinfo. Improve the 
mkpragmatab.tcl script to reuse column names where appropriate.

FossilOrigin-Name: 2fdd068987e59b979045d71ae64e700600ef07e54ae340f30c2064e5dcccb8ea
 2018-10-01 21:26:30 +00:00
drh d7dc0a36cc Add the extra "hidden" column to the end of the PRAGMA table_vinfo output. 
FossilOrigin-Name: cf1b76135f511530dcc7b82f78c952bf97ebcddb40be06f713f9f2326915fabe
 2018-10-01 18:28:42 +00:00
dan 49f84ce1cd Speed up xAccess() calls made on an RBU VFS when there are lots of open 
connections.

FossilOrigin-Name: 310b4b65b8c8ee080760c7efb4c7e20244c6063a5dba37a4f40490105aafd29f
 2018-10-01 17:33:35 +00:00
drh 5612ef1057 Bring the PRAGMA table_vinfo statement up to date with trunk. 
FossilOrigin-Name: 6f606f99231f88ae5ff719d0ce21afc4b844490102c27ac20aa606baaf78d8d6
 2018-10-01 17:15:17 +00:00
drh 44d068532e Fix a potential crash that can occur while reading an index from a corrupt 
database file.  The corruption is a record-header-size that is larger than
0x7fffffff.  Problem detected by OSSFuzz against GDAL and reported to us 
(with a suggested fix) by Even Rouault.  The test case is in TH3.

FossilOrigin-Name: 8ac2cdda68f92b0352bc7f0b4be5fca4bb58565ca65055fb34153cc284ed6922
 2018-10-01 13:54:30 +00:00
dan 5351e884aa Fix a problem with ALTER TABLE commands when the schema features an INSTEAD of 
trigger that uses NEW.* or OLD.*.

FossilOrigin-Name: c52f457e56eb9d573eb67093731eb231aaf6fd6dbdc397e6f948b82736fbe3ab
 2018-10-01 07:04:12 +00:00
drh 15fc988ce0 Add the PRAGMA table_vinfo command (with an extra "v" before "info") that 
works like PRAGMA table_info (without the "v") except that it also shows
hidden columns on virtual tables.

FossilOrigin-Name: 8bcd1a59560aa7ea73e6529e5c14ece8ac09bf7e99efdcfd388fead39846b6bf
 2018-09-29 19:38:42 +00:00
drh ca9a5faf70 Fix test cases so that they work with ICU. 
FossilOrigin-Name: d04b2013b5436430ebbf7053d637fd89c1b15affcb42787dcf1cf5ffc3ae54e2
 2018-09-28 23:53:24 +00:00
dan f8248c42f9 Have sqlite3changegroup_output_strm() call its output function more regularly. 
FossilOrigin-Name: 8467c31aa0bf24e597f680748460a99f425c49f5ab741c3574c339aa56857146
 2018-09-28 20:46:41 +00:00
drh 09b523c99b Fix a bug in the sqlite_memstat virtual table that was causing it to report 
the amount of memory used as zero bytes.

FossilOrigin-Name: 8a758a872175b0c74e631c231240c5c733fbec708d0cff23eb9c4025e4a800ec
 2018-09-28 18:51:18 +00:00
drh 60afcb80ee Add the geopoly_regular(X,Y,R,N) function to the geopoly extension. 
FossilOrigin-Name: 4505bbae58357eacab262b642b2a56d6dd380de72faceb5bbfd042eb94a12c06
 2018-09-28 14:01:17 +00:00
drh 601c8f2829 Make most geopoly functions pure. 
FossilOrigin-Name: 944e167a98e995c5750c1fcd44df857d6b10c1cbb91731fad2849415c42b2cfc
 2018-09-28 13:18:24 +00:00
drh b2d83494d3 Rig geopoly to use sqlite3AtoF() if it is available, as that routine is much 
faster than atof().

FossilOrigin-Name: 470c6c07d0eb70806ac257c1c8ad877e041bbc14ff9a5c490edb51b2956ae726
 2018-09-28 00:16:57 +00:00
drh 17e65ae4c0 Small performance optimization in the JSON parser of Geopoly. 
FossilOrigin-Name: fb520e71035258d5490be33ee28575df2caefa5d5a301c8bbdf1471551c96282
 2018-09-27 23:57:45 +00:00
drh 50db3e8d51 Enhance the GeoPOLY extension so that it always stores its polygons in the 
binary format, which is faster and more compact.

FossilOrigin-Name: dc35f7b1754a78fa0d70c92754de07bb3c28d0d31cb929ee8a3a47ac4f3d446e
 2018-09-27 20:37:52 +00:00