dan
1d8cb21fdb
Modify the OP_Once opcode so that it works correctly in trigger sub-programs. This is a candidate fix for [7bbfb7d442].
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FossilOrigin-Name: 557c69055a300b4082830b5f4803091dca1c3140
2011-12-09 13:24:16 +00:00
drh
7e02e5e6b5
Begin adding the data-structure explaining subsystem. All is contained within
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FossilOrigin-Name: 79ae51c5b1b20ed0a425a87e65a32a096a80b7e1
2011-12-06 19:44:51 +00:00
dan
029ead645d
If an error occurs within sqlite3_step() on a statement prepared using sqlite3_prepare_v2(), transfer both the error code and error message to the database handle before sqlite3_step() returns (so that they are available via sqlite3_errcode() and sqlite3_errmsg(). Prior to this commit, only the error code was transfered. The error message was not available until after either sqlite3_reset() or sqlite3_finalize() had been called on the statement handle.
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FossilOrigin-Name: 8f88cc4e616b4b30ed349f89e148f782da5cb6c4
2011-10-27 15:19:58 +00:00
drh
ca892a7252
The build works again with -DSQLITE_OMIT_MERGE_SORT. The merge-sorter now
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avoids spilling to disk (letting the in-memory linked list grow without
bound) if PRAGMA temp_store=3.
FossilOrigin-Name: 68e26c4487696d194ee85370380e4b0e56d206ee
2011-09-03 00:17:51 +00:00
dan
5134d1357e
Instead of a temporary b-tree, use a linked-list and merge-sort to sort records in main memory in vdbesort.c.
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FossilOrigin-Name: 7769fb988d9be0f2d8129aaac19620ac88f9b4a6
2011-09-02 10:31:11 +00:00
drh
c6aff30ca4
Experimental code-generator changes to utilize new opcodes for sorting.
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FossilOrigin-Name: bab2e560f6cb989c83a96aad60f666960ede7abe
2011-09-01 15:32:47 +00:00
drh
2d36eb43a4
About a 1% overall performance improvement by using a macro to avoid
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no-op calls to sqlite3MemReleaseExternal().
FossilOrigin-Name: ff71d20a9ed129bd1785a3f7a777ce62098735b7
2011-08-29 02:49:41 +00:00
dan
e6f7bc6379
Remove an unused parameter from a function in vdbesort.c. Fix some comments and other details in the same file.
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FossilOrigin-Name: 1a8498d8037a1b93e56951bbdbb76291bd5a4f87
2011-08-12 16:11:43 +00:00
dan
689ab89781
Add the SQLITE_OMIT_MERGE_SORT pre-processor directive. To omit the code in vdbesort.c.
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FossilOrigin-Name: 4ced2394b10d0a4f86422ff893bcdf3cf32591e3
2011-08-12 15:02:00 +00:00
dan
1e74e602ec
In temp files used for merge sorting, store the size of each packed-memory-array at the start of the array itself. This is to avoid having to store the offsets of all arrays in the (potentially very large) file in main-memory.
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FossilOrigin-Name: 8051c1767c4386b0f14a66742d9fac41e001eb07
2011-08-06 12:01:58 +00:00
dan
7fe6270b4d
Minor fixes to vdbesort.c code in preparation for a major rework.
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FossilOrigin-Name: 7f339c0e2655310d7530041c379b082d49ce8c7f
2011-08-02 10:56:22 +00:00
dan
a20fde64eb
Experimental support for speeding up CREATE INDEX commands using an offline merge sort.
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FossilOrigin-Name: 30dbf0feab0323250404e0741ac2716bcb6b0cbe
2011-07-12 14:28:05 +00:00
drh
124c0b49a1
Refactor the SQL parameter processing so that parameter names for values
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that are optimized out of the prepare statement are not forgotten.
FossilOrigin-Name: b3aaf715b60b8a338cc6c92dad1ead4a3f7146a3
2011-06-01 18:15:55 +00:00
drh
dc5b047ec3
Fix a performance regression: Keep two btree masks in each prepared
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statement; one for btrees used and another for btrees that require locks.
Only try to lock the btrees identified by the second mask.
FossilOrigin-Name: 614de91a504d2231009a9de1305e31fce1b1c5a6
2011-04-06 22:05:53 +00:00
drh
e54e051800
Remove the mutex counter and the logic that attempts to verify that btree
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mutexes are held continuously. We are not making that assumption at this
time.
FossilOrigin-Name: 242ce7cff416a87d57d4eb624cb79fa4e2215559
2011-04-05 17:31:56 +00:00
drh
bdaec52c62
Remove the BtreeMutexArray object - use the Vdbe.btreeMask field to accomplish
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the same result. Add a generation counter to btree mutexes in order to assert
that mutexes are never temporarily dropped over a range of instructions in order
to do deadlock avoidance in some subroutine. Lock all btrees in any Vdbe
program that uses OP_ParseSchema.
FossilOrigin-Name: d81708f7d1eee399bfe76f6b8dac950a85dc2582
2011-04-04 00:14:43 +00:00
drh
6412358526
Change the name of the "tAttachMask" datatype to "yDbMask".
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FossilOrigin-Name: 3d6f2e82358c0d8c0ca04e0da20b84fc65c3f7fa
2011-04-02 20:01:02 +00:00
drh
01c7dc887c
Increase the upper bound on SQLITE_MAX_ATTACHED from 30 to 62.
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FossilOrigin-Name: 7aaf8772274422f5020fad9eea490e195170720f
2011-03-23 18:22:34 +00:00
drh
2e5de2f2b3
Reorder the fields in private structures in an effort to reduce alignment
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gaps and thus make the structures smaller, and to put frequently accessed
fields first. Also update some obsolete comments. Valgrind shows a very
slight performance improvement.
FossilOrigin-Name: 378a1d13af4a6f4cb2bfa65944b3b0d444b9f21c
2011-01-07 02:50:40 +00:00
dan
271065704c
Avoid recursive calls to sqlite3VdbeMemRelease() when deleting VM frames used by trigger programs.
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FossilOrigin-Name: 119ffe955eb1e8016cb8131a63bd17557f395f3f
2010-12-01 08:04:47 +00:00
drh
2b4ded993b
Add assert() statements that fail when a shallow copy is accessed after the
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original has been modified. These assert() statements should detect the kinds
of subtle SCopy bugs such as caused the fault
in ticket [b351d95f9cd5ef17e9d9dbae18f].
FossilOrigin-Name: 8b8e1732e8410efd5f8e308c43abe521584e87a0
2010-09-27 21:09:31 +00:00
drh
d4187c716c
Provide hints to the btree layer during the creation of transient tables
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when it is possible for those tables to use a hash rather than a binary tree.
No use is current made of those hints, though assert() statement verify
their accuracy.
FossilOrigin-Name: 4fead8e714c7e50a9d246467e62bc846ef6180a0
2010-08-30 22:15:45 +00:00
dan
d19c933e8e
Change the way SubProgram objects are deleted so that the code is the same for deletion and measurement.
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FossilOrigin-Name: 00e55102a8309eb6df08ad4a8937ba02688bac62
2010-07-26 12:05:17 +00:00
drh
a21a64dd0c
Veryquick.test is now working. The SQLITE_STMTSTATUS_AUTOINDEX counter
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added.
FossilOrigin-Name: abbf16e5e7895971710fb3a8fd9c782fc1218a77
2010-04-06 22:33:55 +00:00
drh
4611d925a9
Expire pragma statements when reset, even if they were not run to completion.
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FossilOrigin-Name: 78351d289bba83e536b64666c566b7bfc57351da
2010-02-25 14:47:01 +00:00
drh
7ec5ea942e
Make the sqlite3_result_double() interface work the same as
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sqlite3_result_int64() when SQLITE_OMIT_FLOATING_POINT is defined.
FossilOrigin-Name: 61df5986600b6c9e6d5c42efc0067a27fe54251f
2010-01-13 00:04:13 +00:00
drh
a6c2ed91ca
Optimizations to the main loop inside sqlite3VdbeExec() to help VDBE byte code
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run a few percent faster.
FossilOrigin-Name: d622ac6ac7a297754494d3a33dbaeea02836272e
2009-11-14 23:22:23 +00:00
drh
c81c11f62c
Remove the obsolete "$Id:$" RCS identifier strings from the source code.
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FossilOrigin-Name: f6c045f649036958078cb15cd9d5453680c82b0c
2009-11-10 01:30:52 +00:00
drh
8677d30812
Create a new datatype "ynVar" to hold "nVar" (number of variable) values.
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This is normally 16-bits can can be 32-bits if SQLITE_MAX_VARIABLE_NUMBER
is large enough.
FossilOrigin-Name: 24a4d520d540d92b611abc4eb57dc6da9be4eac6
2009-11-04 13:17:14 +00:00
drh
75f8d8be1a
All SQLITE_MAX_VARIABLE_NUMBER to exceed 32767. The sizes of some structures
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increase when the compile-time parameter is configured this way.
FossilOrigin-Name: 16a24b4485420bdf30d3c8e22cfbaf008e07df02
2009-11-03 01:22:07 +00:00
drh
80bcf232a9
Remove additional obsolete code from the sqlite3_release_memory() logic.
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FossilOrigin-Name: 2eeb6ed818dac240afe761b4e7c11e961255bf33
2009-10-26 22:32:55 +00:00
dan
1d2ce4f804
Remove the sqlite3_reoptimize() API. The same functionality is now provided automatically to queries prepared using prepare_v2().
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FossilOrigin-Name: 2c50b3d5aab7cd8cc841d61f8c3b2b34d2f0b54b
2009-10-19 18:11:09 +00:00
dan
937d0dea4f
Add the experimental sqlite3_reoptimize() API.
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FossilOrigin-Name: 9bd6f3d8864d422fe42074688b191915b27ad8ea
2009-10-15 18:35:38 +00:00
dan
8a2fff7a78
Fix a problem with FK constraints that implicitly map to a composite primary key.
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FossilOrigin-Name: e0a48d53110130de75602603f524539e421a9dba
2009-09-23 18:07:22 +00:00
dan
32b09f29c9
Do not check immediate foreign key constraints until the end of the statement. This matches the postgres behaviour.
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FossilOrigin-Name: 1a32149cc3c722058f4ed4c81edadeb6ce5bc9e4
2009-09-23 17:29:59 +00:00
dan
1da40a381f
Check in implementation of foreign key constraints.
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FossilOrigin-Name: d5d399811876391642937edeb9e8434dd9e356f5
2009-09-19 17:00:31 +00:00
drh
3e9ca09453
Code simplifications, especially to the pseudo-table logic, and comment
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improvements.
FossilOrigin-Name: 52449a9569b7142095cc88ee208b31cc59a3cab4
2009-09-08 01:14:48 +00:00
dan
65a7cd1631
More fixes and comment updates.
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FossilOrigin-Name: 38a9327bad1a01e3d7a47fad44ece2f6c7e88643
2009-09-01 12:16:01 +00:00
dan
76d462ee78
Fixes for new triggers scheme.
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FossilOrigin-Name: 9eb91efda5241609ff18ff15ef5eaa0e86788eab
2009-08-30 11:42:51 +00:00
dan
165921a742
Changes to support recursive triggers.
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FossilOrigin-Name: 9b9c19211593d5ff7b39254a29c284560a8bcedb
2009-08-28 18:53:45 +00:00
drh
35f6b936ce
Simplifications to vdbe.c to promote better test coverage. (CVS 6802)
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FossilOrigin-Name: 3ffc93d762b64fd84f47c4b6d68ab56b69ea98a9
2009-06-23 14:15:04 +00:00
drh
aa73609f92
Simplifications to vdbe.c in support of coverage testing. (CVS 6794)
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FossilOrigin-Name: 16680f05bd169dfb1b4bf0eb082e69701f9b07ab
2009-06-22 00:55:30 +00:00
drh
8bfdf72136
Reorganize and cleanup the prepared statement object. Remove code that has
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been commented out for ages and is no longer relevant to anything. (CVS 6786)
FossilOrigin-Name: 37ae5f5e8feb34a8e6e8b34aa18df1e9a1ce55cb
2009-06-19 14:06:03 +00:00
drh
35cd643cc7
Take care that a corrupt variable-length integer does not cause 32-bit
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integer overflow when parsing a record format, nor cause excessively large
memory allocations. (CVS 6719)
FossilOrigin-Name: 38b20327a80996c7044b88be32161ac4ac0ec3a9
2009-06-05 14:17:21 +00:00
danielk1977
de630353d8
Speed up INSERT operations that add data to UNIQUE or PRIMARY KEY indexes by rationalizing duplicate seek operations. (CVS 6599)
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FossilOrigin-Name: cac4f3d812f0a02ca5c1fa78d366f694403929a8
2009-05-04 11:42:29 +00:00
drh
1b26c7ccfa
Remove the rowhash object from the code. Rowset now fills its role. (CVS 6535)
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FossilOrigin-Name: e963bed0fe3ce5fa32f04b930e5ed0956dc2aa47
2009-04-22 02:15:47 +00:00
danielk1977
1d46146b58
Attempt to optimize virtual table queries with 'OR' expressions in the WHERE clause. (CVS 6527)
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FossilOrigin-Name: f61e4cd93682fd98bea2a71d346f9eaa68454390
2009-04-21 09:02:45 +00:00
danielk1977
f7590db099
Changes to ensure that when running in shared-cache mode with a non-threadsafe build, the correct busy-handler callback is always invoked. (CVS 6481)
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FossilOrigin-Name: 683e4bd74783e6e3f6cf75f9582008c7b7e02a01
2009-04-10 12:55:16 +00:00
danielk1977
bd43455c38
Fix some cases where executing SQL from within a user-function callback could cause problems related to statement-transactions. (CVS 6355)
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FossilOrigin-Name: a60f4191791dd7bb49d5c95b350a9924845b59a8
2009-03-18 10:33:00 +00:00
drh
7f75122149
Move the rowid cache out of VdbeCursor and into BtCursor. When multiple
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BtCursors are open on the same table, set their rowid cache all at the
same time. Ticket #3731 . (CVS 6354)
FossilOrigin-Name: 189785832a7dc9f4a0a2113d850b92b987e0f9bf
2009-03-17 22:33:00 +00:00
