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configure-dll-support
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471 Commits

Author SHA1 Message Date
drh
81367381a9 If an error occurs in the compile-time evaluation of an application-defined 
function, then propagate back out the exact error code, not just the
generic SQLITE_ERROR.

FossilOrigin-Name: 93f42586cc9db63c5a4599ce06630e60204a5bc9
 2015-03-12 18:38:51 +00:00
drh
a9e03b1b82 The valueFromFunction() routine is better able to handle OOM errors. 
Omit unreachable branches.

FossilOrigin-Name: 8fb6bd9be59d6b04e922d7b246aaefd4851539b6
 2015-03-12 06:46:52 +00:00
dan
cdcc11d7d4 Allow the default value for columns added using ALTER TABLE ADD COLUMN to be a function in existing schemas loaded from disk. But prevent this version of SQLite from being used to create such a column. 
FossilOrigin-Name: ff868e22ca0393eaac417872a4c10738f0d7d970
 2015-03-11 20:59:42 +00:00
dan
18bf807689 Allow the query planner to evaluate deterministic scalar SQL functions used in WHERE constraints if all arguments are SQL literals in order to compare the results with sqlite_stat4 sample data. 
FossilOrigin-Name: b7f1fc26d24012e1e7c7f6b3cc0b84ad2b02b8ad
 2015-03-11 20:06:40 +00:00
dan
f11b256b0b Merge latest trunk changes with this branch. 
FossilOrigin-Name: 1b2824f1d11ac336779372e322aecfb36fb2a31d
 2014-10-15 19:37:13 +00:00
dan
74439167cb Rearrange an expression in vdbemem.c to avoid a (harmless) reference to a possibly unitialized variable. 
FossilOrigin-Name: 4a7b3fa049a9aa0668e318287edd4a78c0588bf8
 2014-10-15 11:31:35 +00:00
drh
78aad7cd1d Merge all recent trunk changes. 
FossilOrigin-Name: abfef254721ca29b653f24bfe80e88adaa92dc6c
 2014-10-10 12:56:35 +00:00
drh
722246e801 Make sure the sqlite3VdbeMemClearAndResize() routine is never called with a 
zero size parameter, since a size of zero could lead to either a memory leak
or an assertion fault.

FossilOrigin-Name: f672a380e2e52bede95ff11a533fd9f7d412d494
 2014-10-07 23:02:24 +00:00
drh
3b335fce5c Restrict the scope of the valueToText() routine. 
FossilOrigin-Name: 13c962b33df411a0d9ead0bb1969596faa286f79
 2014-10-07 16:59:22 +00:00
drh
6b011d83b4 Merge all recent trunk changes into the sessions branch. 
FossilOrigin-Name: 6406b77f2c447751a2fbb16f01c61cdcfd6af59e
 2014-09-21 22:49:20 +00:00
drh
1eda9f7d87 Recognize the invariant that a Mem object cannot be MEM_Dyn and have 
a non-zero szMalloc at the same time.  Enforce this with assert()s and
exploit it in the sqlite3VdbeMemClearAndResize() routine for a performance
increase.

FossilOrigin-Name: 3b21cf2b284048da4b728a5d6ec89e5c330144d4
 2014-09-19 22:30:49 +00:00
drh
a5476e9254 Add the sqlite3VdbeMemClearAndResize() function. Fix a sorting-index 
prefilter problem.

FossilOrigin-Name: 987a7a211913b3949da20e43423af376f72a28ba
 2014-09-19 04:42:38 +00:00
drh
322f2852f2 Add the sqlite3VdbeMemClearAndResize() interface to be used in place of 
sqlite3VdbeMemGrow().

FossilOrigin-Name: 5b9b8987797abf7c68d2c3154f6657be9b8b1c8f
 2014-09-19 00:43:39 +00:00
drh
17bcb10299 Add the Mem.szMalloc element to the Mem object and use it to keep track of 
the size of the Mem.zMalloc allocation.

FossilOrigin-Name: 9c09ac353df6041808cace41880f4729ee73f5e1
 2014-09-18 21:25:33 +00:00
drh
74eaba4de2 Merge the Mem.r value into the MemValue union as Mem.u.r. Hence, a Mem can 
now store an integer or a real but not both at the same time.  Strings are
still stored in a separate element Mem.z, for now.

FossilOrigin-Name: 4c8c89d7e62aecfe2eb735f7bb114aed6b452847
 2014-09-18 17:52:15 +00:00
drh
d3b74200a8 In the Mem object, stop requiring that Mem.xDel be NULL when the MEM_Dyn 
bit is clear.  Also reduce the amount of initialization of Mem objects.
All for a small size reduction and performance increase.

FossilOrigin-Name: fdddb477c89dabb9f7bf2d5ccb32534868df3a03
 2014-09-17 16:41:15 +00:00
drh
0725cabe3a Improved interface to the Mem object handling. Small size reduction and 
performance increase.

FossilOrigin-Name: 4e437844322cc20eef92928b53fa6b37eded586e
 2014-09-17 14:52:46 +00:00
drh
6b478bcd9e Continuing cleanup of memory register memory allocation handling. 
FossilOrigin-Name: 2598aedc5dd2bac67e2e518a31f2803e469c2ba6
 2014-09-16 21:54:11 +00:00
drh
8740a60016 Make sure registers are cleared properly prior to being used to store 
the result of an OP_Column operator.

FossilOrigin-Name: 78fb8838d80b229418c347c63579989432e1af7d
 2014-09-16 20:05:21 +00:00
drh
2a2a696cd7 Simplification of the OP_Column logic for the case of rows with overflow. 
FossilOrigin-Name: f73678038d8fc399c1ca55230ae45962007c909c
 2014-09-16 18:22:44 +00:00
drh
035e563bf6 Reorder the elements of the Mem object for a small size reduction and 
performance improvement.

FossilOrigin-Name: 0be3019ed794c10de67dfd645ceea7d45815bc4b
 2014-09-16 14:16:31 +00:00
peter.d.reid
60ec914c74 Fix typos in comments. No code changes. 
FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
 2014-09-06 16:39:46 +00:00
drh
9bd038f12e In the sqlite3_context object, keep a pointer to the result value rather 
than storing the result value in the sqlite3_context object and using
memcpy() to move the value back into its register
after the function returns.  This runs faster and saves over 500 bytes
of code space.

FossilOrigin-Name: 6c1ee3e388eb110de815270467b1e50592c0ba6c
 2014-08-27 14:14:06 +00:00
drh
6c9f8e67de Factor out the exception paths from sqlite3ValueToText() into a separate 
function so that the main routine is much faster for the common case of
no required type or encoding conversions.

FossilOrigin-Name: 1624916c6e9bc5dbcfa146b316a99ac8fecb13a9
 2014-08-27 03:28:50 +00:00
drh
b63388b6a4 Performance enhancement in sqlite3VdbeMemNulTerminate(). 
FossilOrigin-Name: f94cacc393e895522b92c9717c53357afc918d60
 2014-08-27 00:50:11 +00:00
drh
ec3e4f753b Minor changes to the CAST logic to make it more testable. 
FossilOrigin-Name: 1ad70ec550c004160d9c0c57e6c416812cdead5e
 2014-08-25 21:11:01 +00:00
drh
4169e430a2 Allow CAST expressions and unary "+" operators to be used in the DEFAULT 
argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of
range constraints interpreted by STAT3/4.  This involves a rewrite of the
implementation of the CAST operator.

FossilOrigin-Name: 91d8a8d0b792ea5c4fe68fd9caaf3345eddea486
 2014-08-25 20:11:52 +00:00
drh
12b7c7d8c3 Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to 
more accurately reflect what it does.  Performance enhancement to the
sqlite3VdbeMemRelease() function.

FossilOrigin-Name: 3ca5846da7da5e08192a4c96288197be3b7ab6f7
 2014-08-25 11:20:27 +00:00
drh
bd9507c8da Performance optimization in the applyAffinity() logic inside the VDBE. 
FossilOrigin-Name: 25f2246be404f38b4f8dd70397cd1454d46358c4
 2014-08-23 17:21:37 +00:00
drh
2f2b2b8580 Performance enhancement in sqlite3PutVarint(). 
FossilOrigin-Name: a929be551924144c9bc7aab608404d59e479abb5
 2014-08-22 18:48:25 +00:00
drh
0288b21e54 Add header comments on new routines. Rework the sqlite3Stat4Column() routine 
so that is (in theory) able to deal with corrupt samples.

FossilOrigin-Name: ef5cdf949bb53a2958fa34e176b4b9eeda269de5
 2014-06-28 16:06:44 +00:00
dan
fa8874542c Fix a problem with using stat4 samples of type text when estimating the rows visited by a range-query/skip-scan loop. 
FossilOrigin-Name: dfb09db6d412f3bc2a71bda393813783580dbad1
 2014-06-28 15:26:10 +00:00
dan
4e42ba4a35 Fix a couple of problems in estimating the number of rows visited by a range query that uses a skip-scan. 
FossilOrigin-Name: 219736f54dcd1448af3400e699f1c20755ac6876
 2014-06-27 20:14:25 +00:00
dan
b0b8290ecb Attempt to use sqlite_stat4 data to estimate the number of rows visited by a range query that uses a skip-scan. This code is largely untested. 
FossilOrigin-Name: 01dc8102592427b71a18c2cb82301d2266dd59c2
 2014-06-26 20:21:46 +00:00
mistachkin
afc14f72ef Experimental simplification of memory flags/type handling. 
FossilOrigin-Name: bac2820e13a79d91d0f8938c643134a9d6900327
 2014-03-05 01:29:18 +00:00
dan
052c6784ee Fix a problem with "DEFAULT (-(-9223372036854775808))" clauses in ALTER TABLE ... ADD COLUMN commands. 
FossilOrigin-Name: e072cb3ee2a03d786c08230cecc6e970de2cec5b
 2014-03-04 21:00:20 +00:00
drh
d1053a4314 Fix a potential memory use-after-free problem following an OOM error. 
FossilOrigin-Name: 767ccb1fa11b3e7b895fb8c2e91f79e3b4202907
 2014-03-04 18:06:04 +00:00
drh
5f1d536b53 Improve clarity of presentation in the sqlite3VdbeMemFromBtree() routine. 
FossilOrigin-Name: 9830c343bc954b828f6ca752f8ae63e2c0a980c1
 2014-03-04 13:18:23 +00:00
dan
900defa07a Merge latest trunk changes. 
FossilOrigin-Name: e00ed717fbe456010ec6c746490d7c3e9d94ec5a
 2014-03-03 14:45:06 +00:00
drh
c91b2fd310 Change the MEM_Dyn flag so that it means that Mem.xDel exists and must be 
used to free the string or blob.  Add tighter invariant checks on Mem.

FossilOrigin-Name: 44e1c33767cae3bf2cbd2238831fe67197009b43
 2014-03-01 18:13:23 +00:00
drh
75fd054201 Factor the Mem invariant checker into a separate procedure (rather than a 
macro) so that it can be more easily extended.

FossilOrigin-Name: 354699d50e7d251504a7b3d6fbec9e5bcf99557f
 2014-03-01 16:24:44 +00:00
drh
defbd9dade Add extra assert() statements trying to catch a Mem object in an inconsistent 
state.

FossilOrigin-Name: 4aeb3ae435c78070232fef21a147fde4e1c5cd31
 2014-03-01 14:45:18 +00:00
dan
597515d70c Update some test cases that deal with corrupt databases. 
FossilOrigin-Name: 3a09f5605ac7c6e503eb10acfdc607010414d917
 2014-02-28 18:39:51 +00:00
dan
1fed5dab0d Attempt to speed up sqlite3VdbeRecordCompare() by various means. This code is in an interim state. 
FossilOrigin-Name: 85206e0bbac29adab52bef795f6d1479f2ae2c0e
 2014-02-25 21:01:25 +00:00
drh
1b27b8c0a0 Faster and smaller implementation of sqlite3_value_type(). 
FossilOrigin-Name: 5708bc24b8cab623b833121183042b43e5a7021b
 2014-02-10 03:21:57 +00:00
drh
a5750cfe01 Add the OP_Undef and OP_IsUndef opcodes. With these, use the first register 
in the result register range as the flag to indicate EOF on an INSERT from
a SELECT, rather than allocating a separate boolean register for that task.

FossilOrigin-Name: 6fb7448550f28a3c93053e125faeaf11de1011d0
 2014-02-07 13:20:31 +00:00
drh
693e671936 Fixes for various clang warnings. 
FossilOrigin-Name: 87bf60637e5863c54c5e2d05aaaca0835b7aace8
 2014-01-24 22:58:00 +00:00
drh
a3cc007df4 Simplication and optimization of error message handling. 
FossilOrigin-Name: 9d347f547e7ba9590b0c68edf50a14ad94a2bb92
 2013-12-13 16:23:55 +00:00
drh
a9ab481fca Fix harmless compiler warnings. 
FossilOrigin-Name: a7e5fcd66659750eb2f4675082df324e7cf35427
 2013-12-11 11:00:44 +00:00
drh
024045fe6e Avoid unnecessary calls to sqlite3VdbeSerialType() from within 
sqlite3VdbeSerialPut().

FossilOrigin-Name: 079c04a5013074b68f7d90f1ce8bf8e7092ad8a2
 2013-12-10 21:38:08 +00:00