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Commit Graph

13138 Commits

Author SHA1 Message Date
drh
007c843b0f Experimental implementation of IS TRUE and IS FALSE operators. All TRUE and
FALSE to act like constants if the names do not resolve to a column name.

FossilOrigin-Name: 40314bc999af08ab10e654241208842b4bb95b19858d11249444372250ea4160
2018-02-26 03:20:18 +00:00
drh
c0ec2f7762 Remove an unreachable branch in the walIndexPage() logic.
FossilOrigin-Name: 4e61a9731f5949dcf05c541106b56be16add04a7730613481fc8519d3e4f493b
2018-02-21 01:48:22 +00:00
drh
8d3e15eec4 Small performance improvement in sqltie3WalFindFrame().
FossilOrigin-Name: 52013cad0e6ce2d694f25e2984a76d438cef724f0e07c8bb9d3dce8a3caf4350
2018-02-21 01:05:37 +00:00
drh
4f4e49a98b Remove an unnecessary memset().
FossilOrigin-Name: e7b7f5884a78630c6ba6a217c36247397e62f1928d4b480df929efcfc4a01893
2018-02-21 00:48:02 +00:00
drh
2e178d7321 Make the walIndexPage() routine about 3x faster by factoring out the seldom
used reallocation logic into a separate subroutine.

FossilOrigin-Name: e2b107141cd97bd4ab240748a9ce43fc2ec950ea74610697a4a7a3d7a6441e6b
2018-02-20 22:20:57 +00:00
drh
3993678d3d Remove a superfluous "#if 1". No logic changes.
FossilOrigin-Name: caaffd32001ff44c31f2d6dbe921f9d294f869c2c4a81e943fdf3f43f8d9313c
2018-02-20 16:39:11 +00:00
drh
cc398969e0 Optimize calls to sqlite3_mprintf("%z...") so that they attempt to append
text onto the end of the existing memory allocation rather than reallocating
and copying.

FossilOrigin-Name: 4bc8a48e644562f6e6192f4c6fc4a70f6bb59f8126ed6c6dc876bedf65d74cda
2018-02-20 15:23:37 +00:00
drh
b0b6f8783c Remove a lot of the text describing extended format options from the
documentation on sqlite3_mprintf() and friends, since that information is
now covered by the separate printf.html document.  Provide links to that
other document.  No changes to code.

FossilOrigin-Name: 99eec556f065ad19548e48d1f4ae0a3767b4e82e1c83fa2365062e3c5e0071fb
2018-02-20 13:46:20 +00:00
drh
a15a7c352c Printing a value of 0 using %c terminates the string.
FossilOrigin-Name: 255612f0a131f2f522cbca3cc5a1edcf7e38938abca25ba421e7e38a422db9c9
2018-02-19 21:58:16 +00:00
drh
cf7c8370d1 Test cases and a bug fix on the new unicode handling in %c.
FossilOrigin-Name: e41d64e95b9b6fec5dc329553822925e7d648a41912b420cfa1ba198736e6bab
2018-02-19 20:23:20 +00:00
drh
136102beda Fix the %c substitution in printf() so that it works with unicode characters.
FossilOrigin-Name: c35be1d9e9132fbadc74d207c1088e5a710a151c0835c38a63bf3c8e6fd711a0
2018-02-19 18:56:52 +00:00
drh
57e3ba7623 Make the alternate-form-2 flag ("!") change the meaning of width and precision
from bytes to characters for the %q, %Q, and %w extensions of printf().

FossilOrigin-Name: 391540acbea34eb88c75b1152b458d8936b3fdfff47633b9ec897775b015ba4c
2018-02-19 18:03:10 +00:00
drh
62856465f2 In the printf() library, measure width and precision in characters rather
than bytes if the "!" (alternate-form-2) flag is present on a %s or %z
substitution.

FossilOrigin-Name: ca31c6630422fca70e626dd38aae96296bd8535d491ca52391624a5e7e663636
2018-02-19 17:03:23 +00:00
drh
26f625fbf4 Only try to use the geteuid() interface on unix if HAVE_FCHOWN is defined.
This fixes the build for vxWorks, we are told.

FossilOrigin-Name: 38f654dc117bb11d61407327884b5c913cfaf920547bebc4ce5a4cf983e5c20e
2018-02-19 16:34:31 +00:00
drh
a224ee2a1b Fix an assert so that it compares two CellInfo objects field by field
instead of using memcmp().  Memcmp() does not work on x86
because of uninitialized padding bytes.

FossilOrigin-Name: 88258770adead70fa101c74e266a37bb9aaffac0ba738a4b345617feb8c46477
2018-02-19 13:53:56 +00:00
drh
e28eb64d09 Fix a memory leak in the processing of nested row values. This problem has
existed every since row values support was added (version 3.15.0, 2016-10-14)
but was only just now detected by OSSFuzz.

FossilOrigin-Name: 2df6bbf1b8ca881c8a465d6624de66fde4c5975ccae6b2f2dda392b137f577de
2018-02-18 17:50:03 +00:00
mistachkin
091881bbb0 Port mutex enhancments from check-in [f53b8a573b] to the Win32 implementation.
FossilOrigin-Name: 74bb7225d132c80fd5758bb8c120448e3b3e951d0ca2fa0c57cac0a9c6c27045
2018-02-18 00:54:06 +00:00
dan
c551550808 Fix a data race causing a tsan complaint with SQLITE_ENABLE_API_ARMOR builds
on unix. The race condition is not dangerous in practice, it just upsets tsan.

FossilOrigin-Name: f53b8a573bfbb48780243d56ca8372165adb1b979731c43d46cd1f8eb7e593f3
2018-02-17 07:38:50 +00:00
drh
713f34ace9 Do not allow parameters or schema references inside of WITH clause of
triggers and views.  This fixes a bug discovered by OSSFuzz and present
since common-table-expressions were first added in 2014-02-03.

FossilOrigin-Name: b918d4b4e546d3903ff20efc3c8ca26dd9761cc8ed9ef7d2799b66ff9ae1ae51
2018-02-15 21:00:37 +00:00
drh
501ea05630 Fix the --heap, --pagecache, --lookaside and other options to the command-line
shell that invoke sqlite3_config() so that they work again.

FossilOrigin-Name: 00707f2f2f746a6421f3e2de995e68cc8adba7225a04db6b28db52944e7e988e
2018-02-15 01:03:37 +00:00
drh
ee269a60c9 Add the --readonly option to the ".open" command in the CLI.
FossilOrigin-Name: 06870bb15656b50b0e14d4364bb21afac76500e313ecf67aaef3688d603fd076
2018-02-14 23:27:43 +00:00
drh
4d1c6845ff Fix an incorrect table lookup used to find the appropriate search operator
for a WHERE clause on a row-value inequality.  The incorrect table lookup
was causing an incorrect answer for the less-than operator.
Fix for ticket [f484b65f3d6230593c34f11]

FossilOrigin-Name: f3112e67cdb27c1aec8d2cee3cb91ade061d093e13505894698e26336898b336
2018-02-13 18:48:08 +00:00
drh
35043cc32a When compiling with VDBE_PROFILE, add the sqlite3NProfileCnt global variable
which can be used to measure per-opcode values other than elapse time, if
non-zero.

FossilOrigin-Name: d44d5936428859b6d3e089d9835acb8ca1f3c0a85b59eeaa619170623e7dcc30
2018-02-12 20:27:34 +00:00
dan
1db7db1f03 Update test file func6.test so that it works with SQLITE_ENABLE_NULL_TRIM
builds.

FossilOrigin-Name: e128d72f1a565551d3b6fdb3807fcb1c2a2bf355f0c09d04562b62f49d01fdbc
2018-02-12 15:27:32 +00:00
drh
00c3ef2df9 Fix a possible infinite loop in VACUUM that can come up when the schema
has been carefully corrupted.  Problem discovered by OSSFuzz. Test cases
in TH3.

FossilOrigin-Name: 27754b74ddf6463c6f9c48ea0df3637945b5ea086b92a41ddeb55b9aaefea4c2
2018-02-12 13:30:34 +00:00
drh
c86d82f27d Fix misplaced testcase() macros from the previous check-in.
FossilOrigin-Name: 3aed949a18a251c5795f21f0385c205a127502b7e9cf06bc7f4c763951cd7984
2018-02-10 02:31:30 +00:00
drh
f313952097 Improve the performance of the built-in REPLACE() function in cases where
it does many substitutions that make the string larger.  OSSFuzz is reporting
intermittant timeouts when running a test where it does a REPLACE() on a 
930KB random blob. Perhaps this enhancement will fix that.

FossilOrigin-Name: fab2c2b07b5d3cd851db3e6f5c8a44155e32b0df22905ea33412b153b825a928
2018-02-09 23:25:14 +00:00
mistachkin
2a86110a6c Enhance sqlite3ErrStr() to include several more error codes.
FossilOrigin-Name: ad5d3bdc739a0997786f94fb5789b726b9f53ff883226093924338fe5000922b
2018-02-08 01:00:11 +00:00
mistachkin
b189e4101c Fix typo in comment. Skip tests added by check-in [4761db83b6] when running on Windows.
FossilOrigin-Name: 468a389cdc8b6f92c77b11f682e210ad8cce7e3dbc0df308a898f4115e85fce2
2018-02-07 18:45:00 +00:00
dan
fa68815fa3 When the final connection disconnects from a wal mode database, check that the
database file has not been moved or unlinked before deleting the wal and shm
files.

FossilOrigin-Name: 4761db83b6d3d57f281370899403c102e39ad0021d315dd6a6912d250436782a
2018-02-07 16:14:41 +00:00
mistachkin
bc6b8d7359 Adjust the previous check-in, which modified the Win32 VFS, so that it works with SQLITE_OMIT_WAL.
FossilOrigin-Name: 36c2e67e82626f8d0a187c6c286c133ed659889e3b577469261b9dcd3b3ab75b
2018-02-05 21:02:47 +00:00
mistachkin
435666e26d Allocation the mutex used by the Win32 VFS only once at initialization, instead of every time it is needed.
FossilOrigin-Name: 535ed0ac5e8728ec91fc0a4cb54b820923d161cfd4e0e6aed6df6cdae365bc7d
2018-02-05 20:42:50 +00:00
drh
561158937b Allocation the mutex used by the unix VFS only once at initialization, instead
of every time it is needed.

FossilOrigin-Name: 5764dc160783f5c4017204b3e26a89d31240c868484ced8214c9ad872bd77bd4
2018-02-05 16:39:12 +00:00
drh
4b18c1d53a In the CLI,
make sure sqlite3_initialize() is called correctly even for non-UTF8 hosts.

FossilOrigin-Name: a3591fb54178b8f124207ff16e3ef9e58a62585feb3a56ced2b862222aea19d8
2018-02-04 20:33:13 +00:00
mistachkin
97f9059eee Fix harmless compiler warning seen with MSVC.
FossilOrigin-Name: 63a914410b5750bd08836864ae456ff09549487c5ce49706fedffa3d4f973059
2018-02-04 01:30:54 +00:00
drh
563ddbe54d New assert() statements to help ensure that no other errors similar
to [343634942dd54ab57b7] ever appear in the code.

FossilOrigin-Name: 5a70af1e9c567f12c997d25d0a305a8d42bf2cc92f2811e9d5fdde720665e213
2018-02-01 15:57:00 +00:00
drh
06b3bd5b7a When an index is based on a text representation of a numeric column in the
original table, make sure the indexed value uses the canonical text 
representation of the numeric value in the table.
Proposed fix for ticket [343634942dd54ab57b70].

FossilOrigin-Name: 88e2ce916791d488076584f3795a89eb4277fcb812af9e4c2f383815d55ff6f1
2018-02-01 01:13:33 +00:00
drh
5cd253423b Improve the omit-left-join optimization so that it works in some cases
when the RHS is subject to a UNIQUE but not NOT NULL constraint.

FossilOrigin-Name: 02ba8a7ba7ba71cd7abd5dd3093ea486f53a025f6972bb444f2da37e0e2fc3b2
2018-01-31 16:50:27 +00:00
dan
4ea48144f9 Fix a failing assert() in the new code on this branch.
FossilOrigin-Name: 74d857d178dfadea7e07ba47439fe11aa9d282b54caf78cd6961e593b37406d0
2018-01-31 14:07:01 +00:00
drh
04a28c3b6d Changes to the autoconf tarball so that it does not try to use system() when
building on iOS.

FossilOrigin-Name: 32ed9c106710c74a12d60ec33027fd6a9335627c95642ba608593b2735714da6
2018-01-31 01:38:44 +00:00
dan
099fa84727 If a virtual table xColumn method sets an error message using
sqlite3_result_error(), use that message in preference to any error message
left in the sqlite3_vtab object.

FossilOrigin-Name: 71e3b715ad36c2132a587b84221be6359c31d7a17c3fba201b7ed3baf17922f1
2018-01-30 18:33:23 +00:00
dan
8433e7166b Update the omit-left-join optimization so that it works in some cases when the
RHS is subject to a UNIQUE but not NOT NULL constraint.

FossilOrigin-Name: 88411a402b29f19d69e0d06d9099eabb98c238ddb7c07ce110236316f008753e
2018-01-29 17:08:52 +00:00
dan
26e731cc88 Ensure the "unique-not-null" flag is set for automatic indexes on columns
declared with "col UNIQUE NOT NULL" (where the NOT NULL comes after the
UNIQUE).

FossilOrigin-Name: 8767f7b880f2e4112f75f0b6ef7be3f50ab1ae20e103e7d03d8bfe77e6c79438
2018-01-29 16:22:39 +00:00
drh
1822ebf9b1 Changes to avoid a harmless UB warning from clang.
FossilOrigin-Name: 19f5c1400054df10688ab448e7e23afef97cab4a7c7a3e411f7527509b515dd8
2018-01-27 14:25:27 +00:00
drh
33f10207aa Proposed fix for the query planner problem of ticket
[ec32177c99ccac2b1].

FossilOrigin-Name: eef8cbef3c49e6331301a8f3f8a5fd12090b1e99e68487c2d405e53ef771f688
2018-01-27 05:40:10 +00:00
drh
33f763d154 Fix the query planner so that it takes into account dependencies in the
arguments to table-valued functions in subexpressions in the WHERE clause.
Fix for ticket [80177f0c226ff54f6dd].

FossilOrigin-Name: 7daa687340e475972d6849f84fe1419a1f5700934f53fd80656849adc73d6d04
2018-01-26 22:41:59 +00:00
drh
4eb57ceffc Improve text-to-integer conversion in boundary cases. The
sqlite3Atoi64() function always returns the minimum or maximum integer
if the magnitude of the text value is too large.  Trailing whitespace is
now ignored.

FossilOrigin-Name: ace0644a1a2a42a3ea42d44f00a31915b8a7e56c9ba90f90a6c02001f89f9c86
2018-01-26 18:37:34 +00:00
drh
cad42838d7 Slightly smaller and faster implementation of OP_If and OP_IfNot.
FossilOrigin-Name: 6ab42934e2c4957b5d8927bf4434a9db07ab6078987a6a2d25f35cc468d21203
2018-01-25 01:20:29 +00:00
drh
9f8952390a When unpacking a sorter record, do so from right to left instead of left to
right, since by starting with the right-most column, the work done by
OP_Column opcodes is reduced.

FossilOrigin-Name: 8055e4f42446ceb5bcf752bbf41a73289c3ca759c56c9f779edc3d7f202b7881
2018-01-24 20:42:42 +00:00
drh
da6bc6792f Rearrange fields of the BtCursor object so that it is smaller and requires less
initialization, for a small performance improvement.

FossilOrigin-Name: 0ddf5292cc0411ec6fcb7399ecf2904c899e0488404d3f65490fbe1db15efdf4
2018-01-24 16:04:21 +00:00