60ec914c74
Fix typos in comments. No code changes.
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FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
2014-09-06 16:39:46 +00:00
503ae86508
Merge recent performance enhancements from trunk onto the threads branch.
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FossilOrigin-Name: 35c44a3c73e2e8b14ff194c41986f4bdb9dfe737
2014-08-29 14:40:07 +00:00
9bd038f12e
In the sqlite3_context object, keep a pointer to the result value rather
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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
6c4ec84256
Merge the CAST operator enhancements from trunk.
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FossilOrigin-Name: 6c8f86e4e08d5d57e21496277613e0f9dcc06514
2014-08-25 22:43:17 +00:00
4169e430a2
Allow CAST expressions and unary "+" operators to be used in the DEFAULT
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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
4d015c6902
Merge the recent performance enhancements implemented on trunk into the
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threads branch.
FossilOrigin-Name: dfdc900f5d1a31ee5c5f35a630c4a8253e69093b
2014-08-25 13:27:02 +00:00
12b7c7d8c3
Change the name of the VdbeMemRelease() macro to VdbeMemReleaseExtern() to
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more accurately reflect what it does. Performance enhancement to the
sqlite3VdbeMemRelease() function.
FossilOrigin-Name: 3ca5846da7da5e08192a4c96288197be3b7ab6f7
2014-08-25 11:20:27 +00:00
bd9507c8da
Performance optimization in the applyAffinity() logic inside the VDBE.
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FossilOrigin-Name: 25f2246be404f38b4f8dd70397cd1454d46358c4
2014-08-23 17:21:37 +00:00
966d9f267f
Merge recent trunk changes into the threads branch.
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FossilOrigin-Name: 163c247bd8280ab14fe577329c631c8bd884707f
2014-07-28 15:01:37 +00:00
8af3f772c1
Add constraints (enforced only when SQLITE_DEBUG is enabled) on the use of
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OP_Next and OP_Prev.
FossilOrigin-Name: 2230c74f1efa591770176c9b40e920724a3c39e1
2014-07-25 18:01:06 +00:00
2bd2c29a95
Merge all recent trunk changes into the threads branch.
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FossilOrigin-Name: 770685892c8f09b9cddb2fbb2877cfb291e19425
2014-07-24 16:54:28 +00:00
3526319b48
Add the OP_ReopenIdx opcode that works like OP_OpenRead except that it becomes
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a no-op if the cursor is already open on the same index. Update the
OR-optimization logic to make use of OP_ReopenIdx in order to avoid
unnecessary cursor open requests sent to the B-Tree layer.
FossilOrigin-Name: 77f412caf0192d3e7fecb377d6d72123d8b64424
2014-07-22 20:02:19 +00:00
6614181610
Merge the latest trunk changes into the threads branch.
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FossilOrigin-Name: ae23a65eb1547fbe8b86ab71477071990a22d31d
2014-06-30 20:25:03 +00:00
3eddb23e31
Change the VDBE to export the sqlite3MemCompare() routine and thus free
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where.c from the dependency on vdbeInt.h.
FossilOrigin-Name: d186d1ac3c47f0d814636c4b8386a6065a294750
2014-06-28 14:28:06 +00:00
958d261bb8
Fix harmless compiler warnings.
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FossilOrigin-Name: f8f72ecb9052a4cace1db75879fb8b5131ea4f50
2014-04-18 13:40:07 +00:00
fad9f9a8a6
When sorting data for a CREATE INDEX statement in single-threaded mode, assume that keys are delivered to the sorter in primary key order. Also fix various comments that had fallen out of date.
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FossilOrigin-Name: 821d1ac4504243fa13b9e3c0d56361ad9fb80d78
2014-04-01 18:41:51 +00:00
a1f7c0a21c
Enhance the sqlite3VdbeRecordCompare() routines so that if they encounter
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database corruption, they will set the UnpackedRecord.isCorrupt field and
return 0. The sqlite3BtreeMovetoUnpacked() routine detects this and returns
SQLITE_CORRUPT, causing the corruption to be reported back to the top-level.
FossilOrigin-Name: 7fa85eaaaf6d211378620d728a759fdfe30a15b0
2014-03-28 03:12:48 +00:00
65ea12cb4a
Make it possible for block-sort to use the OP_SorterOpen sorter in addition
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to a generic OP_OpenEphemeral.
FossilOrigin-Name: 7ce2daafd39a117041bfdd0a7132e2764fe7a74b
2014-03-19 17:41:36 +00:00
079a307259
First attempt at getting block-sort to work. This is an incremental check-in.
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There are many problems still to be worked out.
FossilOrigin-Name: 59742dd4c5259883850044d0938248b009ebd045
2014-03-19 14:10:55 +00:00
afc14f72ef
Experimental simplification of memory flags/type handling.
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FossilOrigin-Name: bac2820e13a79d91d0f8938c643134a9d6900327
2014-03-05 01:29:18 +00:00
295aedf097
Fix compiler warnings.
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FossilOrigin-Name: ba8993727e5752cbc92c7d78437e9e0510c899f7
2014-03-03 18:25:24 +00:00
c91b2fd310
Change the MEM_Dyn flag so that it means that Mem.xDel exists and must be
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used to free the string or blob. Add tighter invariant checks on Mem.
FossilOrigin-Name: 44e1c33767cae3bf2cbd2238831fe67197009b43
2014-03-01 18:13:23 +00:00
75fd054201
Factor the Mem invariant checker into a separate procedure (rather than a
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macro) so that it can be more easily extended.
FossilOrigin-Name: 354699d50e7d251504a7b3d6fbec9e5bcf99557f
2014-03-01 16:24:44 +00:00
defbd9dade
Add extra assert() statements trying to catch a Mem object in an inconsistent
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state.
FossilOrigin-Name: 4aeb3ae435c78070232fef21a147fde4e1c5cd31
2014-03-01 14:45:18 +00:00
1b27b8c0a0
Faster and smaller implementation of sqlite3_value_type().
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FossilOrigin-Name: 5708bc24b8cab623b833121183042b43e5a7021b
2014-02-10 03:21:57 +00:00
5f61229504
Do away with the "multi-register pseudo-table" abstration. Instead, just
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use an OP_SCopy to load results directory from the result registers of
the co-routine.
FossilOrigin-Name: 1e64dd782a126f48d78c43a664844a41d0e6334e
2014-02-08 23:20:32 +00:00
ed71a839fd
Change the OP_InitCoroutine instruction to jump over the co-routine
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implementation.
FossilOrigin-Name: a522f364a6b8ca6f69c353b30609a2166f6e94cf
2014-02-07 19:18:10 +00:00
a5750cfe01
Add the OP_Undef and OP_IsUndef opcodes. With these, use the first register
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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
73d5b8f550
Move elements of the Vdbe object that are only used during statement
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preparation out into the Parse object.
FossilOrigin-Name: c289a253c0c053ac8fc344efe138262c327d8096
2013-12-23 19:09:07 +00:00
9ac7962ace
Show changes to the column cache when PRAGMA vdbe_addoptrace=ON is set.
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FossilOrigin-Name: 4c6a659c432e4f7c0285f58675a67f967b07bb0d
2013-12-18 15:11:47 +00:00
a9ab481fca
Fix harmless compiler warnings.
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FossilOrigin-Name: a7e5fcd66659750eb2f4675082df324e7cf35427
2013-12-11 11:00:44 +00:00
024045fe6e
Avoid unnecessary calls to sqlite3VdbeSerialType() from within
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sqlite3VdbeSerialPut().
FossilOrigin-Name: 079c04a5013074b68f7d90f1ce8bf8e7092ad8a2
2013-12-10 21:38:08 +00:00
038b7bc4ef
Simplifications to the OP_MakeRecord opcode and the sqlite3VdbeSerialPut()
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helper function.
FossilOrigin-Name: 7277a769694787e0332d1a4efc02041834661e2a
2013-12-09 23:17:22 +00:00
501932ca68
Changes some offset and amount parameters from "int" to "u32" to avoid
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harmless signed/unsigned comparison warnings.
FossilOrigin-Name: 4e8c5d0795cb7c603182bfa70f3855d654f0997e
2013-11-21 21:59:53 +00:00
5cc1023e1c
Reduce the size of VdbeCursor again, this time without a performance hit.
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FossilOrigin-Name: 933939932c44bccb0958f203a5bd24e683c1cf38
2013-11-21 01:04:02 +00:00
1fd522ff49
Unpack some fields, adding some space back to the VdbeCursor object,
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in order to help the code to run a little faster.
FossilOrigin-Name: f8d5efcd7b92492b833b6cd1cb6bec006c6a0809
2013-11-21 00:10:35 +00:00
14da87f8c5
Reduce the size of the VdbeCursor object from 144 to 120 bytes.
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FossilOrigin-Name: 5f9d50688508affd0bc8e4d52e21dacfacdbb5ce
2013-11-20 21:51:33 +00:00
399af1d2c2
Refactoring the OP_Column opcode for improved performance and
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maintainability.
FossilOrigin-Name: 7c914e3997d2b28164a2fa7eb4398262b6ddb4b2
2013-11-20 17:25:55 +00:00
79353dbd5f
Simplifications to the VdbeCursor object.
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FossilOrigin-Name: 5562cd343d8f69242e06a51a7f1aef7ee7d78eec
2013-11-20 02:53:58 +00:00
84e55a80db
Add the "PRAGMA vdbe_eqp" command, only available with SQLITE_DEBUG. Simplify
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some of the other debugging logic.
FossilOrigin-Name: 8ce33f4c818e1c785a1c176f6f631b8184e1166b
2013-11-13 17:58:23 +00:00
1153c7b25d
Size KeyInfo objects so that IdxInserts always compare the correct number of
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fields.
FossilOrigin-Name: 302a81390f039fc23eeb8510e95b9d9fa0b41edd
2013-11-01 22:02:56 +00:00
11e85273df
Work on the UPDATE and INSERT logic. This is an incremental check-in so that
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can switch over to trunk to work on an unrelated issue there.
FossilOrigin-Name: 086ec2a177b24ad90d5d705a99d93aa0c1545217
2013-10-26 15:40:48 +00:00
95a7b3e36d
The date and time functions use the exact same notion of "now" for every
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invocation within the same call to sqlite3_step().
FossilOrigin-Name: daf6ba413cb3cb6065774ba07495eab4a28b49b0
2013-09-16 12:57:19 +00:00
9b47ee3f09
Performance optimizations in the VDBE and especially to the OP_Next and
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related opcodes and in the sqlite3BtreeNext() and sqlite3BtreePrevious()
routines. This is a cherrypick of [6f99b54aedeb], [d2efea1682a7], and
[d78c5d89de4b].
FossilOrigin-Name: 7f72fc4f47445a2c01910b268335873de9f75059
2013-08-20 03:13:51 +00:00
0c5477997b
Ensure that all auxiliary data registered by calls to sqlite3_set_auxdata() is destroyed when the VM is halted. Partial fix for [406d3b2ef9].
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FossilOrigin-Name: 71effa59c98d167e6e4b269e59ad5f468e664ac1
2013-07-18 17:12:08 +00:00
648e264342
Add the "defer_foreign_keys" pragma and the SQLITE_DBSTATUS_DEFERRED_FKS
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value for sqlite3_db_status(). This is a cherry-pick of a sequence of five
checkins in the sessions branch between [1d44e5d3c2] and [d39e65fe70].
FossilOrigin-Name: 527121ac3cdc96ac33ad975c227a6685a2f7e999
2013-07-11 15:03:32 +00:00
1713afb025
Refactor the Vdbe.noIO field as Vdbe.bIsReader. The meaning is inverted.
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FossilOrigin-Name: 59f98c5c241e5a61cd5b6d0e69b55a6b44c5cafc
2013-06-28 01:24:57 +00:00
9e92a47bdf
Make sure that sqlite3_stmt_readonly reports false for
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PRAGMA journal_mode and PRAGMA wal_checkpoint. Ticket [a589ec069e3].
Also keep track of whether a prepared statement does no reading or
writing.
FossilOrigin-Name: 1937fd8eec2c1da95a782d9dc63926d846b06bdc
2013-06-27 17:40:30 +00:00
bf159fa21b
Add a new (experimental) sqlite3_stmt_status() verb that returns the number
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of VM steps.
FossilOrigin-Name: f1366bab737a3ac2ea20a0ec014cc306d7ded8a5
2013-06-25 22:01:22 +00:00
60625313b0
Increase the default SQLITE_MAX_SCHEMA_RETRY to 50. Make sure that macro
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covers every case where a prepared statement might need to be reprepared due
to a schema change. The sqlite3_exec() interface now uses
sqlite3_prepare_v2().
FossilOrigin-Name: c1d7304c80c4a6244c8a9f6fad1eebd0f339c724
2013-04-06 18:06:51 +00:00
peter.d.reid