2a0b527b37
Omit unnecessary CHECK constraints in UPDATE statements, when none of the
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columns referenced in the CHECK constraint are modified.
FossilOrigin-Name: 02fbdbc782dd98f080bf4482d820f36c0ef3d519
2016-02-10 16:52:24 +00:00
bdb00225ab
Omit NOT NULL checks on unchanging columns in an UPDATE.
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FossilOrigin-Name: 6a3aaedfb41735996470abbae6d3cd1be1f508b3
2016-02-10 16:03:20 +00:00
bbde018230
Code simplification: ALTER TABLE ADD COLUMN always upgrades the file_format
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to 4 if is not there already. No need to upgrade to only 2 or 3 since format
4 has now been supported for over 10 years.
FossilOrigin-Name: e1d8ec85546caeca3bb7a05ad962a2aed91194ce
2016-02-09 16:09:22 +00:00
575fad6500
Add the slightly faster sqlite3DbMallocRawNN(db,n) routine for the majority
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cases where db is guaranteed to be not NULL.
FossilOrigin-Name: 0a802e96ab06e2643834b83671fa8353da1a348d
2016-02-05 13:38:36 +00:00
4a642b6060
Improvements to the way that OOM errors are processed.
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FossilOrigin-Name: c3ef03478a5788c855b3aef385d43ae7f494f440
2016-02-05 01:55:27 +00:00
6841b1cb3d
Add "PRAGMA synchronous=EXTRA" which syncs the directory containing the
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rollback journal when the rollback journal is deleted in order to commit a
transaction in DELETE mode.
FossilOrigin-Name: af92401826f5cf49e62c278f344ab75252a18da2
2016-02-03 19:20:15 +00:00
1b32554b80
Enhance the internal sqlite3VdbeAddOpList() interface to automatically update
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jump destinations. Use this feature to simplify the AUTOINCREMENT code
generator.
FossilOrigin-Name: ae8b9d2edf1b5aef6108e729754911db7682b6a3
2016-02-03 01:55:44 +00:00
4b09ec6e11
Add the BTREE_FORDELETE and BTREE_AUXDELETE flags to the b-tree layer interface
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and use them. Add assert() statement to verify that they are correct.
FossilOrigin-Name: 85c467041c9378cae3038756da815e9117ee8c7d
2016-01-30 13:32:30 +00:00
5f4a686f8c
Simplification and size reduction to the printf logic. Remove the bFlags
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parameter from sqlite3VXPrintf() and sqlite3XPrintf(). Use sqlite3XPrintf()
instead of sqlite3_snprintf() for rendering P4 values in EXPLAIN output.
FossilOrigin-Name: 0bdb41c45aa1cc8e5c136aaa6605d54b401483bd
2016-01-30 12:50:25 +00:00
def19e3b48
Change the name of the BTREE_IDXDELETE flag to BTREE_AUXDELETE, to better
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reflect its purpose.
FossilOrigin-Name: 1d3bf6bebdda9f96734bc139601e9b05344ea0b4
2016-01-27 16:26:25 +00:00
8716bfd8cd
Merge all recent trunk enhancements.
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FossilOrigin-Name: 9a71d56dcea953cb965f1fdda9a8b8f158cdeff6
2016-01-26 23:32:55 +00:00
40aced5c65
Add the sqlite3TokenInit() utility function.
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FossilOrigin-Name: 7323175337b7ba85ac932ca892b28860f6a5b688
2016-01-22 17:48:09 +00:00
e807bdba86
Add a new hint bit on the flags parameter of sqlite3BtreeDelete(). The new
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BTREE_IDXDELETE bit indicates that the call is to delete an index entry
corresponding to a table row that has already been deleted.
FossilOrigin-Name: ac2cbadd8000947c097da5b00c00090fe58fdcff
2016-01-21 17:06:33 +00:00
9c0c57a4ca
Improved comments on the FORDELETE hint. No logic changes.
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FossilOrigin-Name: a3cec529f0238e4ca1196fec420f2de80d28db78
2016-01-21 15:55:37 +00:00
9bfb024de0
Remove an unnecessary memset() from the symbol name resolver.
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FossilOrigin-Name: da527ddae06460ab4b706cdb871de2188ebaf5ac
2016-01-20 02:21:50 +00:00
6d664b4bb3
During compilation, transfer the azVar[0..nzVar-1] array from Parse to Vdbe
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rather than copying it. Smaller and faster code.
FossilOrigin-Name: 80dd495f378614e4eca72e71e43061b1b94ee450
2016-01-20 01:48:25 +00:00
dad300d8e1
Fix a problem with SQLITE_TEST_REALLOC_STRESS.
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FossilOrigin-Name: 0aaf3febb00f622c5ef0853b2491d69f7ca7a21e
2016-01-18 00:20:26 +00:00
2d80151f32
Combine the xFunc and xStep pointers of the FuncDef object into a single
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pointer xSFunc.
FossilOrigin-Name: 0d1b3d7d3ca66cb0b97493f1aeade1703af3c9f4
2016-01-14 22:19:58 +00:00
c0fba6d8e8
Remove an obsolete #ifdef related to iOS support.
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FossilOrigin-Name: e9a51d2a580daa0fb152fe4c891149caa8025b9d
2016-01-08 17:28:24 +00:00
8549d55ead
Small performance and size optimization spotted while working on the
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shared-cache problem.
FossilOrigin-Name: 828958ff77a5c239d55302f570077835c093e0fa
2016-01-07 17:09:43 +00:00
fa385edff3
A new approach to very large sqlite3_mprintf() strings: Back out the
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[d655a665] check-in and instead make the size fields in StrAccum unsigned.
Strings generated by sqlite3_mprintf() can now be as large as 2^31-1 bytes.
FossilOrigin-Name: 7adb789f45698e5569b840d23f3f9488db3ed109
2016-01-04 12:07:27 +00:00
bd57308eef
Remember the size of the Vdbe.aOp[] array in bytes, to avoid unnecessary
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calls to sqlite3_msize().
FossilOrigin-Name: 3e852804c85a5c9f4c4ffafd55d03af6d19fe5cc
2016-01-01 16:42:09 +00:00
e6110505c9
Fix harmless compiler warnings associated with SQLITE_ENABLE_HIDDEN_COLUMNS.
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FossilOrigin-Name: 9c392c1019ee15f27c8e05b41246d2844f91f6c0
2015-12-31 15:34:03 +00:00
e5520e2f06
Small size and performance optimization to the VDBE comparison opcodes.
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FossilOrigin-Name: 7a0b9413fa94d3f4fa9751ddf9b213a1238954f1
2015-12-31 04:34:26 +00:00
f19aa5fa6f
Changes to the way that the default BINARY collating sequence is recorded
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result in a slightly smaller and slightly faster executable. More work could
be done to make this cleaner.
FossilOrigin-Name: 2081d75767dc590b4c8457e5f8e5f18ba5f8eaa7
2015-12-30 16:51:20 +00:00
e1462a762c
Avoid a harmless compiler warning on systems where the byteorder cannot
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be determined at compile-time.
FossilOrigin-Name: 7c7b7f26306b6aa6ff35b871ad756f43f5db9838
2015-12-24 14:53:27 +00:00
1c75c9d7f1
Ensure that the Expr objects that describe indexed expressions are not modified
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by code generation. Fix for an assert() problem found by Jon Metzman using AFL.
FossilOrigin-Name: 34073ce87d88a02313217023ae92e15939192cd9
2015-12-21 15:22:13 +00:00
34628b4b4f
Move pointer range comparisons into a macro, where they can be dealt with in a more portable way.
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FossilOrigin-Name: 05bc4f920ce23da48d1da6cd36a956fd6fd7c862
2015-12-10 17:59:50 +00:00
ac536e613a
Move pointer range comparisons into a macro, where they can be dealt with
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in a more portable way.
FossilOrigin-Name: ad3124c834b080aaaf24934d6f08b3601ac3ae53
2015-12-10 15:09:17 +00:00
ea06a271a4
Avoid doing comparisons with pointers that might have been previously been
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passed to realloc() and/or free().
FossilOrigin-Name: f20396adb2cff12a17a3fc90b36241ae3fdfd62a
2015-12-08 16:08:10 +00:00
7977fa3ab2
Enhancements to a comment in sqliteInt.h. No changes to code.
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FossilOrigin-Name: 5446ae64d7f92444ca40aae2108015d1d77bc03f
2015-11-20 13:17:29 +00:00
18f8e73453
Fix problems with the way the IsHiddenColumn() macro is defined.
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FossilOrigin-Name: 126b998cf163dcdd5a222634f1e929f04db3c700
2015-11-19 18:11:20 +00:00
80090f9221
When manifesting a view as part of an DELETE or UPDATE, be sure to include
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the hidden columns in the manifestation.
FossilOrigin-Name: 28df5dc4a9569f388af2ee0d1f016afbea132277
2015-11-19 17:55:11 +00:00
ba68f8f3f5
Fix problems with INSERT INTO ... SELECT ... statements that write to tables with __hidden__ columns.
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FossilOrigin-Name: 59bd0ec7d4327852ee8c0206b2c59d0a12484db8
2015-11-19 16:46:46 +00:00
03d69a6826
Only support the magic "__hidden__" column name prefix interpretation when
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compiled with SQLITE_ENABLE_HIDDEN_COLUMNS.
FossilOrigin-Name: 5490646b2eb74ea8bd5ab2690f69b9c707a0165f
2015-11-19 13:53:57 +00:00
5e3cefe3d0
Update the SQLLOG logic so that to builds in accordance with the instructions
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in the header comment.
FossilOrigin-Name: ee6f2feec7d777a969ddba6dc00fb571d64e57f8
2015-11-12 23:48:08 +00:00
d83f7ca114
Add support for the SQLITE_SQLLOG_CONDITIONAL environment variable to the logging code in test_sqllog.c. When defined, logging is only performed if the "<database>-sqllog" file is present in the file system when the main database is opened.
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FossilOrigin-Name: cab8126be9f63dd596719b12704ba77c128282bc
2015-11-12 20:12:51 +00:00
6e7722669e
Proposed fix for an infinite loop bug in the WITH clause semantic analysis
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logic.
FossilOrigin-Name: 028475cb17a4b50baf0e9aba9bd3403d0a5d03b0
2015-11-07 17:48:21 +00:00
2476a6f2cb
Enhance TreeView to show WITH clauses. Add an assert to detect the
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infinite loop behavior when certain kinds of errors occur on a nested
WITH clause.
FossilOrigin-Name: 2040d88e877bdb69de125a047cefb4a1558e89e8
2015-11-07 15:19:59 +00:00
b1d607de25
Improvements and simplifications to the equality seek logic. Tests are
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adjusted so that they all pass now.
FossilOrigin-Name: 997ce6c90b454c03cc2ef6934752ee8dd2e520e3
2015-11-05 22:30:54 +00:00
70528d7868
The top of an index equality loop normally starts with OP_SeekGE and OP_IdxGT.
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This check-in adds a flag to OP_SeekGE such that it fails immediately if
the key is not equal, then jumps over the OP_IdxGT, saving a call to the key
comparison functions. Consider this check-in a proof-of-concept. It needs
improvement before going on trunk. Some tests fail, but only because they
new use fewer key comparisons than expected (which is a good thing!).
FossilOrigin-Name: 32e31b9bc8664afcd326a1ff3892d86dc5202474
2015-11-05 20:25:09 +00:00
c5dc3dcd6e
Merge the BTREE_FORDELETE enhancement with this branch.
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FossilOrigin-Name: 20da0849ce910ceb445954dfc5f985acf9a02695
2015-10-26 20:11:24 +00:00
fd261ec67e
Modifications to pass a flag to internal routine sqlite3BtreeCursor() when a cursor that is used solely for deleting b-tree entries, or for obtaining the components of keys to delete from other b-trees, is opened.
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FossilOrigin-Name: cdc92919e600007cae5eb61223684f48a65babc0
2015-10-22 20:54:33 +00:00
0030aaad67
Merge recent enhancements from trunk. Version now 3.9.1.
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FossilOrigin-Name: 26fa091d68e89a0b6af61ba706d23a9f37e8025a
2015-10-16 20:53:57 +00:00
ce78bc6e7e
Enhance the use of the column cache for UPDATE statements, making them
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more efficient for the case where a column is modified to be an expression
of other unmodified columns.
FossilOrigin-Name: 871e091df651b2275a672c35ff938bd4b6db0d7f
2015-10-15 19:21:51 +00:00
b02392e6f0
Change sqlite3StatusSet() into sqlite3StatusHighwater() so that only the
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highwater mark is recorded. This gives a small size reduction and
performance improvement.
FossilOrigin-Name: 6422d223dd10018703c6b083d29a3c35c837fc97
2015-10-15 15:28:56 +00:00
99f4647ef5
Merge in all the 3.9.0 updates from trunk.
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FossilOrigin-Name: 29444149342fc6b1ea8cd34c2c8e1fcb06eaa7ed
2015-10-14 20:09:54 +00:00
8d9837acd5
Adjustments to sqlite3MemoryBarrier() when compiling with MSVC and/or WinCE.
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FossilOrigin-Name: 3168326ebfa1c961d8fc6435453b02be23d910cc
2015-10-06 01:44:53 +00:00
4b92f98ccc
Use symbolic names XN_ROWID and XN_EXPR in place of the (-1) and (-2)
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magic numbers in Index.aiColumn[]. Add asserts to help verify that
Index.aiColumn[] is always used correctly. Fix one place in FK processing
where Index.aiColumn[] was not being used correctly.
FossilOrigin-Name: 7d272aa62cd4cbbf4b5d04e3b918de27671e8301
2015-09-29 17:20:14 +00:00
c149f18f4d
Create the sqlite3IsToplevel(Parse*) interface to check to see if a top-level
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VDBE is being coded (versus a trigger) and use that interface.
FossilOrigin-Name: 59662cd2b65255a30e1a420331c07c51b644621a
2015-09-29 13:25:15 +00:00
drh