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Author SHA1 Message Date
drh
1728bcb07f Add the eval() SQL function extension in ext/misc/eval.c. 
FossilOrigin-Name: 27cf665b957f2c0ced403e3032099e80c295598f
 2014-11-10 16:49:56 +00:00
drh
4ace5362c2 Shorten over-length source code lines in shell.c. 
FossilOrigin-Name: 7f3819f6422badd344c1264b0cd2f2c7afe077df
 2014-11-10 14:42:28 +00:00
dan
b391b94431 Add new test file e_blobopen.test, containing tests for sqlite3_blob_open(). 
FossilOrigin-Name: ecbccd0e594d22b3ae7fabc8037951dc49570bc3
 2014-11-07 14:41:11 +00:00
drh
97d3898335 Fix another harmless comment typo. 
FossilOrigin-Name: b45bc80bb16f07192d84fd14433bb724a84d4146
 2014-11-07 14:37:32 +00:00
drh
9a06d30bb5 In the ".scanstats on" output from the shell, round the estRows value to 
the nearest integer, rather than rounding toward zero.

FossilOrigin-Name: 5700508535c35ac6b158b527e1d47e529e8e28ab
 2014-11-07 13:52:44 +00:00
drh
86a11b8a6a Fix harmless typos in comments. 
FossilOrigin-Name: 94c564da4c2cf5dffe58fdf7a180e9ba4cc3de69
 2014-11-07 13:24:29 +00:00
drh
6137138ded Fix typo in sqlite3.h reported on the mailing list. 
FossilOrigin-Name: 402703212a8488f8b571ce170b3b6c7374bd7daa
 2014-11-07 11:39:16 +00:00
drh
8790b6e860 Update documentation on sqlite3_config() and add corresponding evidence marks. 
FossilOrigin-Name: 360c8ca11c3315c8e08c7c52ff5468e3f723e562
 2014-11-07 01:43:56 +00:00
drh
b1a6eada1d Added SQLITE_SCANSTAT_SELECTID. Change the value returned by 
SQLITE_SCANSTAT_EST from sqlite3_int64 to double.  Enhanced the formatting
and display of scan statistics using the ".scanstats on" command in the
shell.

FossilOrigin-Name: 20c7614addb8494cd7f40263a50fa6f428cce1c7
 2014-11-06 14:43:53 +00:00
drh
15f23c2cf0 Further improvements to the ".scanstats on" display in the shell. Be sure 
to show the results of all subqueries even if there are gaps in the 
SELECTID values.  Add ".scanstats" to the ".help" output.

FossilOrigin-Name: ee922682bb7235dbcd23a22fcfdfa188f6d3228a
 2014-11-06 12:46:16 +00:00
drh
179bac3a14 On the ".scanstats on" output in the shell, initialize the estimated count for 
the first loop of each subquery to the actual loop count.

FossilOrigin-Name: d1c51c8455d5ce972a77720c2d56228646ced27c
 2014-11-06 12:17:24 +00:00
drh
42f30bce11 Changes the formatting of ".scanstats on" in the shell so that the stats for 
subqueries are grouped together and occur after the main query.

FossilOrigin-Name: eacbbd8849db9b023eff15ef1cb42ec941299433
 2014-11-06 12:08:21 +00:00
drh
c6652b1efe Add the SQLITE_SCANSTAT_SELECTID metric. Use it to improve the 
".stmtscan on" output in the shell.

FossilOrigin-Name: 64ad5761a841f71530d41565b9fbe9d19c2d6aff
 2014-11-06 04:42:20 +00:00
drh
518140ed04 Change the SQLITE_SCANSTAT_EST parameter so that it returns a double for 
the estimated number of output rows per loop, rather than a 64-bit integer.
Revise the output format for the ".scanstats on" in the shell to make use
of this new capability.

FossilOrigin-Name: f9684000665ae7ef6f89c3773612b8286b8f545a
 2014-11-06 03:55:10 +00:00
drh
e1db0db899 Fixes to the Windows VFS to allow memory mapped files to work without WAL support. 
FossilOrigin-Name: 272fddc14cc322655eeba670bc0f9fc30e5a804c
 2014-11-05 21:34:56 +00:00
drh
fefa094921 Fix harmless compiler warnings in the new balance_nonroot() routine. 
FossilOrigin-Name: 83a1e5db926b3a6d40f4a5cf9a8e6852b9bac9ac
 2014-11-05 21:21:08 +00:00
drh
6d3f91d040 Change the query planner to do a better job of estimating the number rows 
selected by a BETWEEN operator using STAT4 when both upper and lower bounds
are contained within the same sample.

FossilOrigin-Name: 2d36be5d9a1cdd4fd2d54fc4eeece32a81cbacc1
 2014-11-05 19:26:12 +00:00
drh
6b5631e02f Make sure that NULL results from OP_Column are fully and completely NULL 
and do not have the MEM_Ephem bit set.  Fix for ticket [094d39a4c95ee4].

FossilOrigin-Name: 42705fd7d892c4fdfb95fbbb468c99569beece25
 2014-11-05 15:57:39 +00:00
dan
937994aa65 Add a test case to check that the previous commit is effective. 
FossilOrigin-Name: 948d6e5d07bc14b6de32ec2144c716a5532f894c
 2014-11-05 14:19:05 +00:00
drh
e0de876e27 Enhance whereLoopCheaperProperSubset(X,Y) so that it does not report true 
if X uses skip-scan less than Y, since in that case X might
deserve to be cheaper even if it is a proper subset.

FossilOrigin-Name: c106b755369c1f8546e897ecd2ac56fd09d6e885
 2014-11-05 13:13:13 +00:00
dan
8d1edb92c4 Add the ".scanstats on" command to the shell tool. Executing this command causes the shell tool to print values from sqlite3_stmt_scanstatus() after each query is run. 
FossilOrigin-Name: 7974c0ed10ffdc960a43fed89845c2bed428958d
 2014-11-05 09:07:28 +00:00
drh
547fb61807 Improved output formatting for the showstat4 tool. 
FossilOrigin-Name: 7df82c46da437bc743576358c25e758280067df8
 2014-11-04 21:38:45 +00:00
mistachkin
fdece7bad1 Skip tests that require WAL mode when it is not enabled. 
FossilOrigin-Name: 6fc4ead26d19b9348bbda34c3053ae1e066abc32
 2014-11-04 19:52:15 +00:00
mistachkin
73767829b9 For the Win32 VFS, allow memory mapped files to work when compiled without WAL support. 
FossilOrigin-Name: 1fc7e2f3d34e25e7b59aa8b51d10c1e27ab4a527
 2014-11-04 19:37:22 +00:00
drh
4d9f188f00 Add various requirements evidence marks for sqlite3_config() options. 
FossilOrigin-Name: d423349d2cd8bc7e04f3d90ca7bab11e1ad86e25
 2014-11-04 17:23:24 +00:00
drh
cbd55b0362 Change the definition of SQLITE_CONFIG_SCRATCH so that at most one scratch 
buffer is used per thread.  Use the generic heap memory allocator for the
WalIterator object when running a checkpoint.

FossilOrigin-Name: 391c9b85abcb5ba300fb2e116384639310c69ed2
 2014-11-04 14:22:27 +00:00
drh
5279d3433c Improved documentation and addition of source-code evidence marks for the 
sqlite3_config() interface.

FossilOrigin-Name: 681031a436fdd4cce426d6cd43cbae6b83167d26
 2014-11-04 13:41:32 +00:00
drh
def6889d21 Add the SQLITE_CONFIG_PCACHE_HDRSZ option for sqlite3_config(). 
FossilOrigin-Name: 6eb03e62a34e8e0964175283587247b0212db604
 2014-11-04 12:11:23 +00:00
drh
d84bf205c3 Updates to the sqlite3_stmt_scanstatus() documentation. No changes to code. 
FossilOrigin-Name: d97c324eb1d870c994911c53fbf84205f4e3e7a1
 2014-11-03 18:03:00 +00:00
dan
0cb6948f6b Add the experimental sqlite3_stmt_scanstatus() API. For comparing the number of rows actually visited by a loop with the estimate used by the query planner. 
FossilOrigin-Name: ab3b0fc5760c6d428dbe1f974726a7d3526640bc
 2014-11-03 16:56:43 +00:00
dan
d72219da43 Fix a typo preventing this from building with SQLITE_ENABLE_STMT_SCANSTATUS defined. 
FossilOrigin-Name: 4c5714ab3dba19513374c7b1478221a0b90b450c
 2014-11-03 16:39:37 +00:00
drh
d1a1c23423 Refactor the interface to make it more easily extensible. 
FossilOrigin-Name: 7955342da4a35b57e4ae26690b8d40f7bba20e8f
 2014-11-03 16:35:55 +00:00
dan
e2f771b047 Add further tests. Fixes so that compilation without ENABLE_STMT_SCANSTATUS works. 
FossilOrigin-Name: a2303c719222f1effb51acc6b37930561148c00c
 2014-11-03 15:33:17 +00:00
drh
7b4d780b54 Use exponential buffer size growth in StrAccum, as long as the size does not 
grow to large, to avoid excess memory allocation resize operations.  Also,
document the fact that setting scratch memory causes SQLite to try to avoid
large memory allocations.

FossilOrigin-Name: a518bc3318232d652349eb29303ff250aee40459
 2014-11-03 14:46:29 +00:00
drh
7f5a7ecd21 When enlarging the size of a StrAccum object, use sqlite3DbMallocSize() to 
record the entire size of the allocation, not just the requested size.

FossilOrigin-Name: 3dda3c937469ce661d1cd0e8d8963a03e698ee39
 2014-11-03 13:24:12 +00:00
dan
037b5324bd Remove unused variable from struct WhereInfo. Add some explanatory comments to new code. 
FossilOrigin-Name: f5313e0c680d9baebefb1cf50ddadedd4418a334
 2014-11-03 11:25:32 +00:00
dan
43764a8efb Minor performance enhancements to SQLITE_ENABLE_STMT_SCANSTATUS code. 
FossilOrigin-Name: f13d6ba8a72d75838c4aaf85326c1129da027f8b
 2014-11-01 21:00:04 +00:00
dan
6f9702ed4d If SQLITE_ENABLE_STMT_SCANSTATUS is defined, record the number of times each VDBE opcode is executed. Derive the values returned by sqlite3_stmt_scanstatus() from these records on demand. 
FossilOrigin-Name: 9ea37422a8cc2fce51bb10508e5e90f40fd4b511
 2014-11-01 20:38:06 +00:00
drh
d1dcb23465 Add requirements marks and make minor tweaks to documentation. 
FossilOrigin-Name: 49188b2bb53a92b0b0b6aaf8247edeb0c1bcd1f5
 2014-11-01 18:32:18 +00:00
dan
89e71646df Minor fixes and documentation improvements for sqlite3_stmt_scanstatus(). 
FossilOrigin-Name: 8d8cc9608d30bb65fffcfe488e904411cbbc7f41
 2014-11-01 18:08:04 +00:00
dan
04489b6dce Add the experimental sqlite3_stmt_scanstatus() API. 
FossilOrigin-Name: 6a9bab34aeb6a01b612211a28c140de60a3e883c
 2014-10-31 20:11:32 +00:00
drh
0fb5daed34 Change the command-line shell man-page to use the ".tr" troff directive 
instead of ".cc" for escaping the initial "." characters in the ".help"
output.

FossilOrigin-Name: 67f0d469da28c023200239a1f3d0c6cef9ef0e45
 2014-10-31 14:46:51 +00:00
drh
d836d42383 Simplify the logic in the cell redistribution loop of balance_nonroot(). 
Enhance and clarify comments and add assert() statements for additional
verification of correctness.

FossilOrigin-Name: a07078b60007e88adea67bec5f0caf91f707ad78
 2014-10-31 14:26:36 +00:00
drh
bec021b9fc Simplify the math slightly, and reduce by one the number of loop iterations, 
for the loop in balance_nonroot() that moves cells between pages.

FossilOrigin-Name: 2e838db82e533598b3cb00011c04fc0d5a896895
 2014-10-31 12:22:00 +00:00
drh
9c0153457a Add the "varint.c" utility program in the tool directory. 
FossilOrigin-Name: ea5d56be5fe14934e4dbe9c17d46b058f487a231
 2014-10-31 10:31:59 +00:00
drh
768f29002e Remove an unnecessary branch from balance_nonroot(). 
FossilOrigin-Name: 9fc7c88e3f5221883aa6eafbf8af3be94db0c299
 2014-10-31 02:51:41 +00:00
drh
00fe08af82 In the balance_nonroot() routine, protect the values in aPgno[] array from 
change during the page sort, so that aPgno[] can be used to avoid unnecessary
pointer-map updates for auto_vacuum databases.

FossilOrigin-Name: 69c3924fe834a78d4a8d86833626bf5f68e33a3a
 2014-10-31 00:05:23 +00:00
drh
2a0df92542 Improvements to the wording of some comments. Reinstate an assert() that 
is only true for non-corrupt database files by adding an "|| CORRUPT_DB" term.

FossilOrigin-Name: 67adb44838f98805f86aecca634d9a3b07370b9e
 2014-10-30 23:14:56 +00:00
drh
ba0f999418 Tweaks to comments in btree.c. Minor code changes to enhance testability. 
FossilOrigin-Name: c7d9aa3a1ce63e27ec94295601bc89fecf1e4977
 2014-10-30 20:48:44 +00:00
drh
af8f513f9d Fix the %c format character in sqlite3VXPrintf() so that it correctly 
handles precisions larger than 70.

FossilOrigin-Name: 08a27440f19b7fc884464832e6105af1bf008172
 2014-10-29 18:20:18 +00:00