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2631 Commits

Author SHA1 Message Date
drh
00b950d71e The ".dump" command from the shell correctly saves the state of the 
sqlite_sequence and sqlite_stat1 tables, if they exist.  Ticket #1419. (CVS 2687)

FossilOrigin-Name: 3f191cf497e5798a8620ebc5a85e34187f58371c
 2005-09-11 02:03:03 +00:00
drh
0c35667b02 The shell does not output the sqlite_stat1 table on .dump or .schema. 
The ANALYZE command now gathers statistics on tables that have only
a single index because this sometimes helps when reordering tables
in a join. (CVS 2686)

FossilOrigin-Name: 26565b8931419031f9a8dd3947e1e2bd23ccbff2
 2005-09-10 22:40:53 +00:00
drh
ecc9242f6f Add the experimental EXPLAIN QUERY PLAN diagnostic capability. (CVS 2685) 
FossilOrigin-Name: 986efb7b12643800805ad4b1f1e90e30fcf6d38a
 2005-09-10 16:46:12 +00:00
drh
d891967052 Avoid a memory leak and/or assertion failure when parsing a table 
declaration that contains a duplicate column name.
Ticket #1418. (CVS 2684)

FossilOrigin-Name: f43427742b1c086f2621c900f4ede1a34a8b44ee
 2005-09-10 15:35:06 +00:00
drh
3dec223ca0 Use of the CROSS keyword in a join prevents table reordering. Ticket #1414. (CVS 2683) 
FossilOrigin-Name: 415b8b24629aa12756d8285c094b5f85d8a8e532
 2005-09-10 15:28:09 +00:00
drh
f307a4aaf8 Enhanced disk-full tests. (CVS 2682) 
FossilOrigin-Name: 0288fa5d25886f6fbef0be782f12285d62bebd68
 2005-09-09 10:46:19 +00:00
drh
e08b814d72 Detect errors returned by SetFilePointer on windows. (CVS 2681) 
FossilOrigin-Name: bc8c33f94ce069f7bcfc32a59d5c40e034e023b5
 2005-09-09 10:17:33 +00:00
drh
fd35797469 Infrastructure for the DISTINCT keyword in aggregate functions. But it does 
not work yet.  If you try to use it you get an error message. (CVS 2680)

FossilOrigin-Name: 4d62e36fe3819c2a1412737c2ec8a91ddc5e1777
 2005-09-09 01:33:19 +00:00
drh
b4746b9e33 Defend against disk I/O errors that happen during an sqlite3OsSeek(). (CVS 2679) 
FossilOrigin-Name: 461e3a0a27ff083b0bae10c9880e3b41bb85ee31
 2005-09-09 01:32:06 +00:00
drh
c2bd913a40 SUM returns NULL when it has no inputs. Ticket #1413. (CVS 2678) 
FossilOrigin-Name: 6281859425d39c11d82875301fefafad1f08416d
 2005-09-08 20:37:43 +00:00
drh
3f219f46fc A SUM() of all NULLs returns NULL. A SUM() of nothing return 0. 
A SUM() of a mixture of NULLs and numbers returns the sum of the
numbers.  Ticket #1413. (CVS 2677)

FossilOrigin-Name: 2e6230edfd651b40481ebad8aa01a22ac92ce80c
 2005-09-08 19:45:57 +00:00
drh
825c662e66 Remove a C++ism that snuck in on one of the reason changes. (CVS 2676) 
FossilOrigin-Name: 48f6a331efea419fe948cd366f9c60ae41edddfd
 2005-09-08 19:01:05 +00:00
drh
4f26bb62a8 Remove a few unused variables detected by Borland C. Ticket #1412. (CVS 2675) 
FossilOrigin-Name: cdfe372a958fb446485913e860d52b87fffd34e4
 2005-09-08 14:17:20 +00:00
drh
97571957a1 Aggregates with GROUP BY can sometimes return no result rows. (CVS 2674) 
FossilOrigin-Name: 0c3e368d4766685b94a44f2c514e2dea806c297c
 2005-09-08 12:57:28 +00:00
drh
eb796a7c8f While doing a transaction comment, use fdatasync() instead of fsync() in 
cases there the file size is unchanged. (CVS 2673)

FossilOrigin-Name: 3c555a87493128620ac967faf7c63c2a58856e9e
 2005-09-08 12:38:41 +00:00
drh
f80bcd73af Fix another test to account for SUM() returning integer rather than float. (CVS 2672) 
FossilOrigin-Name: bc723235e65eb4da7d2e4b18653f1173374cb407
 2005-09-08 12:37:28 +00:00
drh
2af6742d86 Fix typos in documentation. Ticket #1239. (CVS 2671) 
FossilOrigin-Name: 73fbb8d9689fecec18c36814e4358e691bcd647e
 2005-09-08 11:04:57 +00:00
drh
3224b32b00 Fix a comment in sqlite.h. Ticket #1321. (CVS 2670) 
FossilOrigin-Name: ed4e9e751be2b982af9561aba20c8e1367828b81
 2005-09-08 10:58:51 +00:00
drh
3d1d95e625 The SUM() aggregate function returns an integer result if all inputs are 
integers.  Any single non-integer input causes the result to be a floating
point value. (CVS 2669)

FossilOrigin-Name: 21adf4bd99e732650a1e8e9a1cc954126983a654
 2005-09-08 10:37:01 +00:00
drh
d49c16ee9b Changes to comments only in sqliteInt.h. No changes to code. (CVS 2668) 
FossilOrigin-Name: cc2a61650ea0d4b2ef67e144424327362999526d
 2005-09-08 02:00:25 +00:00
drh
9d2985c7b4 Optimizations and refinements. Improvements to test coverage. (CVS 2667) 
FossilOrigin-Name: 7283f7c29db4f622380b6a5cb745a4dc0c8e6a25
 2005-09-08 01:58:42 +00:00
drh
5360ad34b1 All regression tests now pass. But I am sure there must still be problems. 
New tests need to be added. (CVS 2666)

FossilOrigin-Name: bcc7d722cea4487a3adf9d9b2af4b74bfbfc5f39
 2005-09-08 00:13:27 +00:00
drh
d1c301e804 More bug fixes. All of the "quick" tests pass. The full test suite still 
shows problems. (CVS 2665)

FossilOrigin-Name: a1b6d910cdbb53f12366402d9585dce2aad3ba3d
 2005-09-07 23:05:21 +00:00
drh
5774b80629 More bug fixes. But there are still tests that fail. (CVS 2664) 
FossilOrigin-Name: 7e85a162d0ecf0acdbffcacc62b60d97fe123881
 2005-09-07 22:48:16 +00:00
drh
a10a34b88f Bug fixes in aggregate processing. Fewer tests fail. (CVS 2663) 
FossilOrigin-Name: c3ac58592f5e6305640868cdf42c129f1a25255d
 2005-09-07 22:09:48 +00:00
drh
13449892ef Rewrite the aggregate handling logic so that it runs in O(1) space. 
This is the first cut at the code.  Many regression tests fail. (CVS 2662)

FossilOrigin-Name: 17039ec3ff4396862beedf4a8af89654b2140f58
 2005-09-07 21:22:45 +00:00
drh
79158e1865 Changes to reduce the amount of stack space required. (CVS 2661) 
FossilOrigin-Name: b86bd70f301205d6ca66475a425e157b976107e2
 2005-09-06 21:40:45 +00:00
drh
abfcea25ea Cleanup the processing of MEM_Agg elements. (CVS 2660) 
FossilOrigin-Name: 7ecf3654aa9a275a4cf0c3ec5f63a8c1e0a11fc9
 2005-09-06 20:36:48 +00:00
drh
1ec43c9a5a Fix ANALYZE so that it works even if the empty_result_callbacks pragma is 
enabled. Ticket #1409. (CVS 2659)

FossilOrigin-Name: bfdaef1224d741deefe211e1e607bac4c80f2d89
 2005-09-06 10:26:47 +00:00
drh
b726ee6d1c Make due with "sub()" instead of "gsub()" in awk scripts so that builds will 
work on Solaris which will runs an archiac version of AWK. (CVS 2658)

FossilOrigin-Name: 449a7895995013720f5d4c7b3b7f5bd6a5413717
 2005-09-05 20:35:25 +00:00
drh
d81bd4e209 Fix bugs introduced by checkin (2656) and do some modest code enhancements. (CVS 2657) 
FossilOrigin-Name: 7b56763a8b514834198d2392639d6d726b17d901
 2005-09-05 20:06:49 +00:00
drh
c092998715 Use the unicode API to win32 where available. 
Tickets #1407, #1396, #1331, #1243, #1206 (CVS 2656)

FossilOrigin-Name: 3ec58c673ae4cf0695ea0c287cc9bcbdcdb1a200
 2005-09-05 19:08:29 +00:00
drh
a21c8495f9 Fix over-aggressive optimization of ORDER BY as reported on the mailing list. (CVS 2655) 
FossilOrigin-Name: efbb4bc83cd86b6a26d58c5818c58c2e3edaab18
 2005-09-01 17:47:51 +00:00
drh
4db38a7092 All regression tests now pass with the new bounded-memory sort code. 
There is still lots of opportunity for optimization, however. (CVS 2654)

FossilOrigin-Name: 81259a01f1e85ba50a1d017b1282bf841b16f0a5
 2005-09-01 12:16:28 +00:00
drh
0342b1f542 Sorting is now done using a sorting index rather than loading the entire 
result set into memory and doing a merge sort.  The old merge sort technique
was a carry-over from SQLite version 1.  The new method uses a bounded amount
of memory and scales to much larger result sets.  There are still errors:
some 39 regression tests fail. (CVS 2653)

FossilOrigin-Name: 09db0a24241f9248584250d1728117b8a3159626
 2005-09-01 03:07:44 +00:00
drh
dece1a8464 {quote: KeyInfo} generation moved to a common subroutine. (CVS 2652) 
FossilOrigin-Name: a25801df06e218e70570a6b9eae71603d590fe3a
 2005-08-31 18:20:00 +00:00
drh
6242b9511d Updates to the query optimizer overview document. (CVS 2651) 
FossilOrigin-Name: b1dceef0508ffe20ab2ff8fa5e5b5a44f4f224aa
 2005-08-31 13:48:34 +00:00
drh
37108e112a Explicit typecasts to silence nuisance compiler warnings. Ticket #1398. (CVS 2650) 
FossilOrigin-Name: 90712ea7273597214d6c77a01e41f84146d201c8
 2005-08-31 13:13:31 +00:00
drh
a91965b38a Refinements to the optimizer overview and integration into the website. (CVS 2649) 
FossilOrigin-Name: ccd12e9e790e271cb1dbbae1c13e9cb980eaf11d
 2005-08-31 03:13:12 +00:00
drh
b64d5ee42c Update the FAQ to include an entry about binary versus decimal numbers. (CVS 2648) 
FossilOrigin-Name: 0bbe73fccfe52700c2ae1122388764e81a78bc22
 2005-08-31 02:46:21 +00:00
drh
f6ac657f27 Adding the first cut of the optimizer overview document. (CVS 2647) 
FossilOrigin-Name: 4c8d0a4c26e44088ffb9f21aa7641a5ebd0058be
 2005-08-31 01:49:59 +00:00
drh
8897f6fa3f Adjust the makefile for new optimizer documentation. (CVS 2646) 
FossilOrigin-Name: 14668c85b87f7c9b83efd592ddc693522c764969
 2005-08-30 22:44:29 +00:00
drh
3e60cdc3c0 Initial work on documentation describing the optimizer. (CVS 2645) 
FossilOrigin-Name: 5cebd7ba3ccbdd0f4c8fe77091992f52d3a4b24c
 2005-08-30 22:44:05 +00:00
drh
0a8640d4f2 The CSV output mode does not sign-extend bytes where the high-order bit is set. 
Ticket #1397. (CVS 2644)

FossilOrigin-Name: 528df777e5d76077d8766f04ee222fd64d9373a6
 2005-08-30 20:12:02 +00:00
drh
63782855ee Fix printf.c so that it handles 10.0 correctly. (CVS 2643) 
FossilOrigin-Name: 0f7a53f78d9dd5c426be834f2d50a6fe4e860141
 2005-08-30 19:30:59 +00:00
drh
5d9a4af9af Minor code enhancements. (CVS 2642) 
FossilOrigin-Name: 4ab994a87ee844f453d693555abd61b51bb44a0e
 2005-08-30 00:54:01 +00:00
drh
220b10285b Update the home page to brag about 150KiB code footprint when optional 
features are omitted. (CVS 2641)

FossilOrigin-Name: 0e1ac1284c0547af0bb0eb4ff320b9f5ae9c248d
 2005-08-30 00:10:45 +00:00
drh
01b4171e57 Make the shell aware of SQLITE_OMIT_MEMORYDB. Ticket #1395. (CVS 2640) 
FossilOrigin-Name: 71a71cef5b3c97744322ceceb48ac3055512c987
 2005-08-29 23:06:23 +00:00
drh
19e2d37f1d Increase resolution of time-of-day on unix. Add an experimental 
sqlite3_profile() API. (CVS 2639)

FossilOrigin-Name: ed2ca0873fa89d6cfd123541d5d1c6b92c72b6ab
 2005-08-29 23:00:03 +00:00
drh
b46b57745d Initialize a local variable to avoid a nuisance compiler warning. 
Ticket #1394. (CVS 2638)

FossilOrigin-Name: 9b914901a18f8ea39c39a51509c0b3b862c13d6a
 2005-08-29 16:40:52 +00:00