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2168 Commits

Author SHA1 Message Date
drh
11e85273df Work on the UPDATE and INSERT logic. This is an incremental check-in so that 
can switch over to trunk to work on an unrelated issue there.

FossilOrigin-Name: 086ec2a177b24ad90d5d705a99d93aa0c1545217
 2013-10-26 15:40:48 +00:00
drh
6f225d0d7f Replace the OP_IsUnique opcode with OP_NoConflict. This code simplification 
might be useful to move onto trunk even if this branch is never merged.

FossilOrigin-Name: e6650e16dd11327afd25961b2feb29ec8778c2ca
 2013-10-26 13:36:51 +00:00
drh
261c02d963 Basic DELETE operations now working on WITHOUT ROWID tables. 
FossilOrigin-Name: 9eafafa31c4a2bbcf48418743e0fcb17c374e9a6
 2013-10-25 14:46:15 +00:00
drh
acbbc5ba36 Remove an obsolete comment from the VDBE. No code changes. 
FossilOrigin-Name: 53bb070c851db02c9d900cb041ab441895ddbfb7
 2013-10-24 11:55:42 +00:00
drh
ad124329ab Some inserts and queries working for multi-column primary keys 
and WITHOUT ROWID.

FossilOrigin-Name: b21d831b2aa55507dd9def2acb02cdbffddf10d1
 2013-10-23 13:30:58 +00:00
drh
8f8b231239 Add the SQLITE_FCNTL_TRACE file control and generate it for OP_Trace 
when compiled with SQLITE_USE_FCNTL_TRACE.  Update vfslog.c to make
use of the new file control.  Also update vfslog.c to log UNLOCK events
before the fact, rather than afterwards.

FossilOrigin-Name: e801f35a96d861a1e5f223655af4c8a6a7e356bc
 2013-10-18 20:03:43 +00:00
drh
a63b852992 Synchronize with the trunk. 
FossilOrigin-Name: 136445ba020c9475d3f5a7843d7d0add98477138
 2013-10-10 20:13:18 +00:00
drh
95a7b3e36d The date and time functions use the exact same notion of "now" for every 
invocation within the same call to sqlite3_step().

FossilOrigin-Name: daf6ba413cb3cb6065774ba07495eab4a28b49b0
 2013-09-16 12:57:19 +00:00
drh
d36e104112 Combine the FuncDef.iPrefEnc and FuncDef.flags fields into a single 
new FuncDef.funcFlags field.

FossilOrigin-Name: 97b10e66e98e84755aa577f8da017bf1aea2056c
 2013-09-06 13:10:12 +00:00
drh
5f9742e0ff Merge from trunk: (1) Recent bug fixes (2) STAT4 support (3) win32-longpath 
support.

FossilOrigin-Name: e7ebc8f74fe91dee26f952fdf49e427b45448667
 2013-08-29 15:08:38 +00:00
drh
2f53b90665 Merge the STAT4 capability into trunk. 
FossilOrigin-Name: a32af0abe5fa6d570604fa3534e8230d5b6042fc
 2013-08-26 23:18:06 +00:00
drh
32683532f0 Merge in minor bug fixes and performance tweaks from trunk leading up to 
the version 3.8.0 release.

FossilOrigin-Name: 831492dca8bcfb1a1f83a8bb15de9cc94f29f07e
 2013-08-22 15:07:08 +00:00
dan
016f7811f2 If a virtual table xSync() returns an error message, copy it into a buffer allocated by sqlite3DbMalloc() before transfering it to Vdbe.zErrMsg. 
FossilOrigin-Name: 854ba3049005adf033e07e6740a36e63f2a56758
 2013-08-21 17:35:48 +00:00
drh
90bf3d7422 Merge performance enhancements and compiler warning fixes from trunk. 
FossilOrigin-Name: 3e4033285deb417bd72c008917729dbf3bf4e90d
 2013-08-20 13:02:16 +00:00
drh
9b47ee3f09 Performance optimizations in the VDBE and especially to the OP_Next and 
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
drh
db78b96111 Merge in all the latest updates and enhancements from trunk. 
FossilOrigin-Name: 67587a3348b84424b2ab1f2df1ea923a5168e2e4
 2013-08-19 12:49:06 +00:00
drh
77dfd5bb44 Fixes for harmless compiler warnings. 
FossilOrigin-Name: a0d9ca4f07f1dc3a189864f8ed9cdb0b1d791b1a
 2013-08-19 11:15:48 +00:00
dan
3bc9f74fe9 Change some assert() statements in vdbe.c to ensure that a memory cell used to store a VdbeCursor object is not also used for some other purpose. 
FossilOrigin-Name: 71070c9fce86103f174220e07771df99b2e01405
 2013-08-15 16:18:39 +00:00
dan
3d40759803 Merge latest trunk changes with this branch. 
FossilOrigin-Name: 08f74c45ecf711a2373af578d44470add9082377
 2013-08-07 18:42:27 +00:00
drh
700a7fdf83 Merge in the latest changes from trunk. 
FossilOrigin-Name: 69d5bed017bda3e184857febcc8b6f6bed6ad228
 2013-08-06 14:52:27 +00:00
drh
323df7907e Factor all KeyInfo object allocations into a single function: 
sqlite3KeyInfoAlloc().  Always allocate enough space so that 
sqlite3VdbeRecordCompare() can avoid checking boundaries and hence
run faster.

FossilOrigin-Name: 7301bedd94c8610568349953b18ff3575203e1b2
 2013-08-05 19:11:29 +00:00
dan
f52bb8d385 Begin adding experimental sqlite_stat4 table. This commit is buggy. 
FossilOrigin-Name: 2beea303a1d609cd2ff252412c50b966b9e5e8f1
 2013-08-03 20:24:58 +00:00
drh
7fb30bd0dd Merge in the latest trunk changes, including partial indexes, the MAX_PATH 
fix in os_win.c, and the sqlite3_cancel_auto_extension() API.

FossilOrigin-Name: 7e1acb390770d1bd189fac7a3a7f96106f96e3a4
 2013-08-02 20:44:48 +00:00
drh
0d1961e91c Enhance the progress handler so that it keeps track of the number of VDBE 
cycles across sqlite3_step() calls and issues callbacks when the cumulative
instruction count reaches threshold.

FossilOrigin-Name: 4698a82ef855a8e56163622283fb25317d7efdc4
 2013-07-25 16:27:51 +00:00
dan
28f8aebf75 Fix a typo in the previous commit. 
FossilOrigin-Name: cd9096e64b86c8d45f6744e6eb6ced2aa1a18279
 2013-07-18 18:28:04 +00:00
dan
0c5477997b Ensure that all auxiliary data registered by calls to sqlite3_set_auxdata() is destroyed when the VM is halted. Partial fix for [406d3b2ef9]. 
FossilOrigin-Name: 71effa59c98d167e6e4b269e59ad5f468e664ac1
 2013-07-18 17:12:08 +00:00
drh
6f855952d0 Merge recent trunk changes (such as the query_only PRAGMA, the 
defer_foreign_keys PRAGMA, and the SQLITE_DBSTATUS_DEFERRED_FKS parameter
to sqlite3_db_status()) into the sessions branch.

FossilOrigin-Name: 8dfc0b78c38e519b64a796243ff7c0aff688ff36
 2013-07-11 15:31:57 +00:00
drh
b1eaa718fd Add the experimental "query_only" pragma. 
FossilOrigin-Name: 6557c407983b067449deb76bc4c5248de64e07dc
 2013-07-11 15:22:31 +00:00
drh
648e264342 Add the "defer_foreign_keys" pragma and the SQLITE_DBSTATUS_DEFERRED_FKS 
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
drh
963c74df59 Rename the SQLITE_DeferForeignKeys macro to shorter SQLITE_DeferFKs. Move 
the "defer_foreign_keys" pragma into the flagPragma() routine.

FossilOrigin-Name: 3a2ab74c85a40e0e7ef2d6aef6ec23837cb788e6
 2013-07-11 12:19:12 +00:00
drh
13447bf6c7 Experimental "PRAGMA query_only=BOOLEAN" statement that is able to turn 
write capabilities on and off.

FossilOrigin-Name: ece960c496717a3a6c25526ef77dd76b08d607bc
 2013-07-10 13:33:49 +00:00
drh
49afe3aaa0 Run progress callback checks less frequently in the main VDBE evaluation 
loop.  This makes up for the extra CPU cycles used to increment the cycle
counter for SQLITE_STMTSTATUS_VM_STEP.

FossilOrigin-Name: 3e8b02011db2f393d4850115a471709b0a88594f
 2013-07-10 03:05:14 +00:00
drh
888e16e7c5 Pull in all the latest changes from trunk. 
FossilOrigin-Name: af3ca4c6e557e6bc92584586b5a97d9be41b0b82
 2013-07-09 13:05:49 +00:00
dan
cb3e4b797e Experimental change to the handling of foreign key constraint violations when applying a changeset: all foreign keys, immediate and deferred, are deferred until the end of the transaction (or sub-transaction) opened by the sqlite3changeset_apply(). A single call to the conflict-handler (if any) is made if any FK constraint violations are still present in the database at this point. The conflict-handler may choose to rollback the changeset, or to apply it, constraint violations and all. 
FossilOrigin-Name: 1d44e5d3c2b1dc958442f9114a960b256e002ed3
 2013-07-03 19:53:05 +00:00
dan
c0537fe59b Allow read transactions to be freely opened and closed by SQL statements run from within the implementation of user-functions if the user-function is called by a SELECT statement that does not access any database tables (e.g. "SELECT user_function();"). 
FossilOrigin-Name: f308c4851726b4b75636f714466f2314f56e3ec0
 2013-06-28 19:41:43 +00:00
drh
1713afb025 Refactor the Vdbe.noIO field as Vdbe.bIsReader. The meaning is inverted. 
FossilOrigin-Name: 59f98c5c241e5a61cd5b6d0e69b55a6b44c5cafc
 2013-06-28 01:24:57 +00:00
drh
4f7d3a5f06 Refactor names of fields in the sqlite3 object: "activeVdbeCnt" becomes 
"nVdbeActive".  Related fields becomes "nVdbeRead", "nVdbeWrite", and
"nVdbeExec".

FossilOrigin-Name: 14f796963474350e7aee8d3757acd3315fe78e4f
 2013-06-27 23:54:02 +00:00
drh
9e92a47bdf Make sure that sqlite3_stmt_readonly reports false for 
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
drh
fd64cedc4b Bring the sessions branch up-to-date with all the latest trunk changes. 
FossilOrigin-Name: 086a127236ee99d67513490fb7b5549e8b752c44
 2013-06-26 13:31:50 +00:00
drh
bf159fa21b Add a new (experimental) sqlite3_stmt_status() verb that returns the number 
of VM steps.

FossilOrigin-Name: f1366bab737a3ac2ea20a0ec014cc306d7ded8a5
 2013-06-25 22:01:22 +00:00
drh
f7b5496e8e Many small harmless comment changes. Removal of obsolete comments and 
fixing misspelled words.  No changes to code.

FossilOrigin-Name: a0d5cc9315dc6e9ef7dee4c3dfabf4e562d64376
 2013-05-28 12:11:54 +00:00
drh
16fb176814 Merge the latest trunk changes into the sessions branch. 
FossilOrigin-Name: 6994826c0784280f2e9728dfa4185848846d03df
 2013-04-22 23:59:06 +00:00
dan
fbfe388d31 Fix an incorrect type cast in an assignment in vdbe.c. 
FossilOrigin-Name: 320b5295da57023399c7b9eed82eae40cf619803
 2013-04-08 10:38:57 +00:00
drh
8dd661aad1 Merge the changes for the 3.7.16.1 release candidate into the sessions branch. 
FossilOrigin-Name: ee35a89712b8ea9f4e70d61a29150348896b519f
 2013-03-28 01:19:26 +00:00
drh
dba0cb2351 Remove the SQLITE_OMIT_MERGE_SORT compile-time option and its related code. 
The merge sorter is now a required component.

FossilOrigin-Name: 8b44d6fb159e85267095e846cded2764c3bcb895
 2013-03-24 22:56:49 +00:00
mistachkin
48864df97d Many spelling fixes in comments. No changes to code. 
FossilOrigin-Name: 6f6e2d50941e444ebc83604daddcc034137a05b7
 2013-03-21 21:20:32 +00:00
drh
dab942860c Enhancements to the query planner to make use of indices for ORDER BY even 
when IN constraints are in the WHERE clause.  Add extended error codes for
all SQLITE_CONSTRAINT errors.

FossilOrigin-Name: 7e14dc734d7d941da5c3aa6612e26d93b5b929bd
 2013-02-13 13:42:50 +00:00
drh
d91c1a1768 Add extended error codes for constraint errors. 
FossilOrigin-Name: 5461104668a49529577f21df97f6a0e7d8f0c679
 2013-02-09 13:58:25 +00:00
drh
89ded43b36 Merge recent trunk changes into the sessions branch. 
FossilOrigin-Name: 7e068e39b3b31364271664e0afb1cd95a235c26f
 2013-01-03 22:22:55 +00:00
drh
be707b396a When an arithmetic operation with two integer operands must give a 
floating-point answer due to overflow, make sure the answer is not
rounded back to integer by affinity.

FossilOrigin-Name: bd7aeeb691fee69dd6a562138a7aba8e8e192272
 2012-12-10 22:19:14 +00:00