5d8a137218
Add the sqlite3_io_methods.xMremap() method to the VFS interface. Also "PRAGMA mmap_size".
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FossilOrigin-Name: 6183f1bd86ceed76d22d9762f3d7eb33262c62d1
2013-03-19 19:28:06 +00:00
1ccce44937
Fix the ORDER BY optimization with IN constraints when the RHS of the
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IN constraint is a descending index.
FossilOrigin-Name: 62316ebaca933f7e5df2018e8360a2b74234f30a
2013-03-12 20:38:51 +00:00
7a3e147ee2
Revised fix for the DESC ORDER BY and IN constraint bug,
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ticket [4dd95f6943fbd18]. The previous check-in was incorrect.
FossilOrigin-Name: 8b2eb7a43b4580f04c14ea8600cf080e0e7f384d
2013-03-12 18:40:20 +00:00
0fe456bb29
A proposed fix for the DESC ORDER BY bug of ticket [4dd95f6943fbd18].
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Seems to work, but lots more testing is needed prior to moving to trunk.
FossilOrigin-Name: 614a038ad2fe111687d2bc1c0aa716d7eb8fdd7c
2013-03-12 18:34:50 +00:00
881bd79293
Define _BSD_SOURCE when building on OpenBSD. This is required for fchmod().
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FossilOrigin-Name: f9027cb47bdec8dcebf1f038921b28d9e9928c18
2013-03-11 13:37:52 +00:00
4bde37027c
Truncate over-length source lines in sqliteInt.h to 80 characters or less.
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FossilOrigin-Name: d71abab08518f0be1eb73c7068566ab813652318
2013-02-19 18:34:12 +00:00
a4b05e2874
Allow an index to be used for sorting even if prior terms of the index
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are constrained by IN operators.
FossilOrigin-Name: 2cef8b68f0e1216cf68bb7dd45a5a9a330748070
2013-02-13 01:00:35 +00:00
d91c1a1768
Add extended error codes for constraint errors.
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FossilOrigin-Name: 5461104668a49529577f21df97f6a0e7d8f0c679
2013-02-09 13:58:25 +00:00
2d96b934c8
Loop through the elements on the RHS of an IN operator in reverse order when
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the ORDER BY clauses specifies DESC.
FossilOrigin-Name: f78395c8896666bb1359b83fbcd58d5e3dbc39d3
2013-02-08 18:48:23 +00:00
e096205a7f
New debugging pragmas: PRAGMA vdbe_debug=ON is short-hand for the sql_trace,
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vdbe_listing, and vdbe_trace pragmas. PRAGMA vdbe_debug enables tracing of
sqlite3VdbeAddOp() calls. None of this is active unless compiled with
SQLITE_DEBUG.
FossilOrigin-Name: ae565ff3e0836b0cb45cc0ba7f27fa8cb2d21d77
2013-01-29 19:14:31 +00:00
eb5bc9261c
Add the ability to disable transitive constraints using the
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sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS) interface.
FossilOrigin-Name: 593d67c8b0908daf7a70b2a310ed85515d384cbf
2013-01-17 16:43:33 +00:00
7a5bcc0f08
Enhance the query planner to exploit transitivity of join constraints in
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a multi-way join.
FossilOrigin-Name: 13171eb5dc19733276fbfd5515d75b70a9f5f5d7
2013-01-16 17:08:58 +00:00
3e3f1a5b49
Now supports result sets of the form "TABLE.*" with nested FROM clauses.
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FossilOrigin-Name: 4cf5ed7ea198abc32f8118e79490e77f847f08c1
2013-01-03 00:45:56 +00:00
d530ee64ca
Merge all the latest trunk changes into the name-resolution enhancement branch.
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FossilOrigin-Name: a5f4d2b641f7fafb6f1a312efeffb10f213d2d0a
2013-01-02 12:29:05 +00:00
b376daeb67
Reduce the size of the Index object (by 8 bytes on x64).
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FossilOrigin-Name: 5a2ac944839ec0c5b9147a035c6cbf0935f3d202
2013-01-01 14:01:28 +00:00
b2bb176b70
Add PRAGMA foreign_key_check. Name the child and parent tables as part of
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a "foreign key mismatch" error.
FossilOrigin-Name: e408dc9080594dc464b8763dece6b365772c6105
2012-12-20 01:15:20 +00:00
0dde4739f3
Add commentary to the ExprList object to explain how zSpan is overloaded.
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Add test cases for the new name resolution functionality.
FossilOrigin-Name: 3e7d84db7861911c9b2c7dcdabe0b213bf483d79
2012-12-19 13:41:03 +00:00
832ee3d4cc
Optimize the degenerate case of a FROM clause table name enclosed all by
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itself inside parentheses. Generate code as if the parentheses did not
exist, rather than the old behavior of manifesting the parenthesized table
into a transient table. Also, tag every FROM-clause SELECT subquery that is
generated by a parenthesized FROM-clause expression using the SF_NestedFrom
flag. The new SF_NestedFrom flag is not yet used for anything.
FossilOrigin-Name: 7fecced466d86a66b0b751c5b5608141e134fe2d
2012-12-18 19:36:11 +00:00
6c5b915fcb
Prototype for PRAGMA that checks all foreign key constraints on a table.
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FossilOrigin-Name: 01c980e9bbdf82e0b37667b6403c19ed8c73ee62
2012-12-17 16:46:37 +00:00
953f7611da
Fix a long-standing issue with the distinct-as-aggregate optimization that
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only expressed when the new collating-sequence logic is turned on.
FossilOrigin-Name: 0aaf52a339808386984c30cca0c0c35ac2e70e7e
2012-12-07 22:18:54 +00:00
0a8a406e9b
Some errors in veryquick resolved. Many more to go.
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FossilOrigin-Name: 972443b4eb282d45507da06c75e2cd46dd72326b
2012-12-07 18:38:16 +00:00
ae80ddea9f
Remove the Expr.pColl field and compute the collating sequence as it is needed.
...
This fixes the test script "shared9.test", though there is still a memory leak.
And there are other problems. Consider this a work-in-progress.
FossilOrigin-Name: fd011cb22f2d899d94ec7ce22641d7a8f5e19972
2012-12-06 21:16:43 +00:00
e6f1e760d5
Remove obsolete comments from the definition of the CollSeq object.
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FossilOrigin-Name: 7b6951016f5bf4c21f843f09769ba176c709e785
2012-12-06 01:03:15 +00:00
3de0f18476
If the atomic-write property is enabled, a transaction may be committed in journal_mode=DELETE mode without ever actually creating a journal file on disk. In this case, do not attempt to unlink() the journal file when committing the transaction.
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FossilOrigin-Name: 11aa47b0a837858b644c304638e1cbbf482de2f0
2012-12-05 10:01:35 +00:00
ac45593931
Add an option to register global hooks used for logging all SQL executed by an application.
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FossilOrigin-Name: cd501bbccf3e62b002317592cc331770b32c129a
2012-11-26 19:50:41 +00:00
782d68a4cd
Try to take into account the cost of inner loops when selecting which table
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of a join to use for the outer loop.
FossilOrigin-Name: 942556342a332b04a11169bb04f387d741ef9488
2012-11-09 17:59:26 +00:00
a575967793
Make it possible to disable the subquery-by-coroutine optimization using
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sqlite3_test_control(). Remove an always-false conditional.
FossilOrigin-Name: 564631f3e45f8f8a8db69f1e0df0d1dadbad8a2c
2012-10-30 14:39:12 +00:00
21172c4cc0
Add an optimization that attempts to run a subquery as a coroutine rather
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than manifesting it into a temporary table.
FossilOrigin-Name: 7af3acbbd49a2114fcdada9ec907c68ba9b053bd
2012-10-30 00:29:07 +00:00
06a2d82566
Move a couple of WAL-related function declarations in sqliteInt.h and pager.h into "#ifndef SQLITE_OMIT_WAL" blocks. Otherwise, the amalgamation fails to build using some compilers with SQLITE_OMIT_WAL (static function declared but not defined).
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FossilOrigin-Name: f7437153b90b25a1b77294a0f8d1b0bd4bd08c08
2012-10-10 09:46:29 +00:00
aedf9ee73a
Merge the shared-cache related fixes from the shared-cache-fix branch to the trunk.
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FossilOrigin-Name: 698ec7769d4feea1782401479c61ce67d2113fd4
2012-10-05 17:44:51 +00:00
79e72a50aa
Consolidate all occurrences of the "no such collation sequence" error message
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into a single spot.
FossilOrigin-Name: 8ea67522fb03134f355ecb776b70c6917241cab2
2012-10-05 14:43:40 +00:00
41fb5cd103
Shared-cache mode fixes for views and virtual tables.
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FossilOrigin-Name: 2b370dea704b59262c604af0efcef5660b194454
2012-10-04 19:33:00 +00:00
a9e3fc05f5
Fix some corner case behavior in the new ORDER BY optimization logic.
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Remove the SQLITE_OrderByIdx bit from the
SQLITE_TESTCTRL_OPTIMIZATIONS mask, since enabling it caused many
TH3 tests to fail when the NO_OPT configuration parameter was engaged,
and since there really isn't any need to turn that optimization off.
The SQLITE_OrderByIdxJoin bit remains.
FossilOrigin-Name: 98b633717a1c9a08f6a1d00bc6bc891564ae7e9b
2012-09-27 23:27:23 +00:00
7e5418e4a4
Add more bits to the bit vector that is used to disable optimizations for
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built-in test. Add specific bit patterns to disable ORDER BY using an
index in general and for joins. Use macros to test for bits in the
disabled-optimization bit vector, in order to make the code clearer.
FossilOrigin-Name: d2fcba1e143beca8c45724d2108870657c269e17
2012-09-27 15:05:54 +00:00
46c35f9b20
Further refactoring of the ORDER BY related query-planning logic in order
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to make it easier to extend to support optimizing out ORDER BY on joins.
No actual behavior changes, yet.
FossilOrigin-Name: 96496ddae12a239b30a1fc997fbea43e3a75bfe7
2012-09-26 23:17:01 +00:00
46ec5b63e2
Change the internal sqlite3WhereBegin() to report that the ORDER BY clause
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is satisfied by indices using the WhereInfo.nOBSat field of the returned
structure.
FossilOrigin-Name: 22989f3588531efd555cc29d6c576e7a34b7edc4
2012-09-24 15:30:54 +00:00
e8e4af7697
Consolidate more of the DISTINCT processing logic into a single spot in the
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code. Reduce the number of OP_Column operations needed to perform a
WHERE_DISTINCT_ORDERED.
FossilOrigin-Name: 79e922f7ae29bbe06d639d648fbd72523cf9a28e
2012-09-21 00:04:28 +00:00
634d81dee0
Continuing incremental enhancements of SELECT code generation:
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Remove the Select.affinity field. Use SelectDest.affSdst instead.
FossilOrigin-Name: cf40b7b5ebdacc3215d769aadacce8c9e7e9dfbb
2012-09-20 15:41:31 +00:00
2c79733f3c
Refactoring of DISTINCT code. Change the name of the local variable
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"distinct" to "distinctTab". Generate cleaner code w/o unnecessary P4
and P5 values on the OP_Null for WHERE_DISTINCT_ORDERED.
FossilOrigin-Name: 0cda241a2bcb3c6f2ae6c48f522780bc4eddfc02
2012-09-20 14:26:22 +00:00
ae651d614e
Add comments to the WHERE_DISTINCT_* macros. No changes to code.
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FossilOrigin-Name: 82320501904f65030622a67836ba30f412169056
2012-09-19 17:31:15 +00:00
de9a7b8a94
Add the ability to disable the covering-index-scan optimization at compile-time,
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start-time, or at run-time. Add test cases to check this configurability.
FossilOrigin-Name: ccb8ecc30c8e6c7760131250297c2e452bbac43b
2012-09-17 20:44:46 +00:00
f4af1089ab
Remove obsolete bits from the bitvector that defines disabled optimizations
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in the SQLITE_TESTCTRL_OPTIMIZATIONS verb of sqlite3_test_control().
FossilOrigin-Name: 4c21ee2d26466f83dec525153e2b1506bd956701
2012-09-17 19:12:39 +00:00
4261096124
Remove an unnecessary parameter from sqlite3Utf8Read() resulting in a slight
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performance increase.
FossilOrigin-Name: 8b962c94a2f829f71efdd0ca770469b02feea3e1
2012-09-17 18:56:32 +00:00
5f08526937
Factor out the code that generates a co-routine for evaluating the SELECT
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on the RHS of an INSERT statement so that the same code can potentially
be reused in other places.
FossilOrigin-Name: a93ee09cdc15987848bf9023e69892ce9a5f989e
2012-09-15 13:29:23 +00:00
6ec6549158
Improved alignment of fields in the Expr object gives an 8-byte size
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reduction on 64-bit machines.
FossilOrigin-Name: 6b252a0d1a78db7bf2d650bafc214ea4064eef9e
2012-09-13 19:59:09 +00:00
d815f17dab
Reduce the size of the Table object by 16 bytes on 64-bit machines, mostly
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by avoiding intermixing pointer fields with integer fields.
FossilOrigin-Name: 1cb9aedfcf81f0086fa741cb29a062ee87724a5e
2012-09-13 14:42:43 +00:00
a371ace426
Change boolean fields in the Column object from unsigned characters into
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bits in a single bit mask variable.
FossilOrigin-Name: 4163f5f194741bc2bdf141973912661c6aac70f1
2012-09-13 14:22:47 +00:00
d5578433ff
Fix all known instances of 'repeated the' style typos in comments. No changes to code.
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FossilOrigin-Name: 9b19b847533f944f289d93dcdba29c0d67bf251c
2012-08-25 10:01:29 +00:00
d40e208726
Move field WhereLevel.pCovidx inside the union to WhereLevel.u.pCovidx.
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FossilOrigin-Name: b722143d075979ba3d92b7b29e576ce2307187d1
2012-08-24 23:24:15 +00:00
0efb72c969
Fix a problem to do with multi-or queries and automatic indexes.
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FossilOrigin-Name: a3e26038a1d9f3331239f777c67d1920d904aab0
2012-08-24 18:44:56 +00:00
dan