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Commit Graph

13138 Commits

Author SHA1 Message Date
drh
66a0bf31cc Additional debugging Noop-comment in the constraint generator when
wheretrace is enabled.

FossilOrigin-Name: 0ca7474f05e9f27f53f8c71f5a3ff99963ffef9be9c147869e096246d552d6f1
2017-07-10 16:38:14 +00:00
drh
e24b92bce7 Small performance optimization in sqlite3WhereExprUsage().
FossilOrigin-Name: 38edc6770e54e456500e77389d42fdf39e9a7ed258a4e1fed3c6dd8fdf4dfcb7
2017-07-10 15:26:09 +00:00
dan
d3930b1266 Fix another problem on this branch.
FossilOrigin-Name: a4fc98113aeb10860834f68a2fdcef690ea15d8303d23b6dd416994a4b7edab6
2017-07-10 15:17:30 +00:00
dan
8674ec5a7f Fix a problem causing non-covered WHERE terms to be evaluated before covered
WHERE terms.

FossilOrigin-Name: 7d3cb39f60951dcec1ff87da2c4ec998f993de5edf49ee5e5f480c6fe4e5a052
2017-07-10 14:39:42 +00:00
dan
ebc63013b7 When testing non-indexed WHERE constraints, test those that involve
correlated sub-queries last of all. This increases the chances of not having
to run the sub-query at all.

FossilOrigin-Name: 1f9c1f359e4693954ba7e2bc7b172ef34eb046e4ca2796df8336975b9d6aa92b
2017-07-10 14:33:00 +00:00
drh
9f6e14c1ef For sqlite3TreeView() debugging output, show the Expr.flags field on
scalar subqueries.

FossilOrigin-Name: dc857a96b00f13ffdf77bc222bc5acbbe14a36ca51e5368b568b3177d1be737a
2017-07-10 13:24:58 +00:00
drh
ff4fa772f5 Update error message text for standard error codes to better describe the
latest usage of those error codes.  Modify sqlite3_open_v2() so that it does
return a valid sqlite3 object in the event of SQLITE_MISUSE due to bad
open flags, so that sqlite3_errmsg() does not report "out of memory" in that
case.

FossilOrigin-Name: f27b6370407842e2c175ea4aa9ce018723c57eaac0cccc1f8399bc20f33324be
2017-07-10 12:07:53 +00:00
drh
e75be1aedb Remove the error message text from disused error codes such as
SQLITE_EMPTY and SQLITE_FORMAT.

FossilOrigin-Name: 871752f2925ee14bdd3e994c00832d00860c03f6f28e63504aa6d35978b7f37c
2017-07-10 11:17:51 +00:00
drh
155507b344 Always make "column%d" column-names 1-based, never 0-based.
FossilOrigin-Name: 70096c505d702a9646da24613da387cee19afcf395d0294b3797c5ab50bb3ee2
2017-07-09 18:55:29 +00:00
drh
d7ca600ede Make sure the columns of a VALUES() clause are named "column%d" even if
the VALUES() clause is a subquery in the FROM clause of an outer query.

FossilOrigin-Name: acf3b9cc9c3932431979995a1dceacc06c659ab400fad95ce3728ff8895a022b
2017-07-09 00:30:58 +00:00
drh
08f1efeb16 Add the "PRAGMA secure_delete=FAST" option, which overwrites most deleted
content without increasing the amount of I/O.  Deleted content might persist
on the free page list, however.  And extra CPU cycles are used for zeroing,
of course.

FossilOrigin-Name: 38978ce65b280bb7cba3fc08ba91485fb1b84cd9fbba2e950ecf41c021ff452a
2017-07-07 20:06:28 +00:00
drh
a690ff360b Change the error message text for SQLITE_ERROR to omit the part about
"missing database" as that meaning is now obsolete (since approx SQLite 2.0).

FossilOrigin-Name: 732f90d6327c5c6368fc8b4cc207bd644ef08e3ae6d2e7295258ab099deaba63
2017-07-07 19:43:23 +00:00
drh
a7a0bfab91 In the command-line shell, when running ".schema" give a sensible error when
the database file is locked.

FossilOrigin-Name: cc329eb8d65171f3f4fcb39b0e55ef85c97a77f3510cf864bbc1537f993d0074
2017-07-07 18:06:49 +00:00
drh
d5eae667f4 Add new PRAGMAs: "function_list", "module_list", and "pragma_list". All are
enclosed within #ifdef SQLITE_INTROSPECTION_PRAGMAS.  The compile-time option
is not on ctime.c yet, since these are still experimental and one can always
test "PRAGMA pragma_list" and see whether or not it returns an empty set.

FossilOrigin-Name: e0b6ae92adfae46f64fc2e2719e22e5467c34d49c1aeaec5cc5faf04258de0f7
2017-07-07 17:43:30 +00:00
drh
8ae11aac93 Add the "Pragma_list" pragma. Put all three pragmas created on this branch
inside of #ifdef SQLITE_INTROSPECTION_PRAGMAS.

FossilOrigin-Name: 2f3c3781ef3d66ecafef083d7144287ff23eea5a6d93b014dfeb2a8ac71f757e
2017-07-07 17:33:07 +00:00
drh
40cf27cb63 Enhance the sqlite3VdbeMultiLoad() interface to automatically generate the
OP_ResultRow opcode on PRAGMA implementations, for a small reduction in the
library footprint.

FossilOrigin-Name: c46f0f076c674891e20240bad56693d891aedc43004bcf980a5d199515f23413
2017-07-07 16:00:53 +00:00
drh
ab53bb635c Add new pragmas: "function_list" and "module_list"
FossilOrigin-Name: e5f01d7fde05fdb547f35816ff15c31a92c170b31877f4c640b7bc2be3f580b3
2017-07-07 15:43:22 +00:00
drh
4676462f92 Merge recent enhancements from trunk.
FossilOrigin-Name: 73d0fc027ddcc24e55cdc8c54443a96083cc9a29e57c0abe97e8586ff8a7f4c5
2017-07-07 14:26:43 +00:00
drh
d10866798d Exploit the fact that Expr.pRight and Expr.x are never used at the same time
for a small performance gain.

FossilOrigin-Name: aacbb9a461fdb34c7f9c8ce348e44c3e96c93334f210d438d92bfac1794dc686
2017-07-07 13:59:34 +00:00
drh
c2d14a9a33 More efficient and compact implementation of walkExpr().
FossilOrigin-Name: 115d4b83392d346634866dd959bef30fca50db2e526df17eaeb3d94da7fc895e
2017-07-07 12:58:30 +00:00
drh
b98a2e351e More aggressive use of EP_Leaf on expression nodes, to help prune searches.
FossilOrigin-Name: c1a1d68c8219c8072e60af5c46a30849ae9a04fa1a6b2a8b22b82fec069d691d
2017-07-07 12:43:57 +00:00
drh
3da70a6112 Very slightly smaller and faster sqlite3WalkSelect().
FossilOrigin-Name: 9bc65635b29a4991c7821ef0939975d007f9ac23716717699353ef3246e27791
2017-07-07 11:49:48 +00:00
drh
9d8e401c2d More compact implementation of the typeof() SQL function.
FossilOrigin-Name: efb4aab0caa4145732a5438cc2a193bc12c455b4007220564d240e75900ea8ad
2017-07-06 13:51:50 +00:00
drh
ebaaa67db2 Avoid unnecessary upper-to-lower case conversion for function names when
registering the built-in functions.

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2017-07-06 13:23:26 +00:00
drh
3b02e0f615 Small size reduction in findCollSeqEntry().
FossilOrigin-Name: 55ecd30304517acd23f89b3450fd6a5e18ac2f79aa24a4ff693f8d71a49f7837
2017-07-06 03:06:20 +00:00
drh
666e86625c Avoid unnecessary calls to sqlite3GetCollSeq() for a small performance gain.
FossilOrigin-Name: 503ba172e4c32e288abf006fc5cb53fd2b0313c4ee4c526c2d9c4c21b7178f2d
2017-07-06 02:49:26 +00:00
drh
07a3b11a50 Slightly more compact implementation of the byte-code generator for
the COMMIT and ROLLBACK commands.

FossilOrigin-Name: 4da663d9863004d8cef58259a043fdcf4f466f80d3714cf58321a52485be8766
2017-07-06 01:28:02 +00:00
drh
169a689f7b Small performance increase in sqlite3SrcListAppend().
FossilOrigin-Name: 7b2623f1994384484cf31ae9e443ee20f19b278bf2e91898dbc01828822ddf91
2017-07-06 01:02:09 +00:00
drh
a35d851892 Make the hash table implementation a little smaller and faster.
FossilOrigin-Name: f762f1effe1ce893d6b67815ad8b585bae2c1621d9199dac9c85d39dad16e774
2017-07-05 23:33:33 +00:00
drh
269ba80469 Add the count-of-view optimization when compiled using
SQLITE_COUNTOFVIEW_OPTIMIZATION.

FossilOrigin-Name: d1ba200234f40b84327c7fc28c2584ed069da80e97578df71114d1a9ba9c559c
2017-07-04 19:34:36 +00:00
drh
cde336e0dc Attempt to improve documentation on sqlite3_column_ and sqlite3_value_
interfaces.

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2017-07-03 17:37:04 +00:00
drh
3a96a5d919 Add APIs for binding pointers that can be used by app-defined functions.
FossilOrigin-Name: d9f4a831ba957ead3890b36d0e33e30cfa4c79b7de6400e623b9746a0a5a02d0
2017-06-30 23:09:03 +00:00
drh
fd76b71cac Improved documentation for sqlite3_value_type().
FossilOrigin-Name: 0db20efe201736b3ebb177948f6a440ce28e62454536a8496fae64a3b55cb702
2017-06-30 20:11:45 +00:00
drh
a501f7dab4 In the command-line shell, add the -quote option to start up in quote mode.
Enhance the ".mode" command so that it reports the current output mode if
given no arguments.

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2017-06-29 21:33:25 +00:00
drh
c31b79d2a4 Remove the ".explain" command from the ".help" output of the command-line
shell, though keep the implementation around for backwards compatibility.

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2017-06-29 21:11:27 +00:00
drh
1d1982c324 Edit comments in sqlite.h.in used for generating documentation, to improve
the description of the new sqlite3_prepare_v3() interfaces, and other
miscellaneous cleanup.  No changes to executable code.

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2017-06-29 17:27:04 +00:00
drh
01e6d540a7 Add interfaces sqlite3_prepare_v3() and sqlite3_prepare16_v3() with the
extra prepFlags argument. Add the SQLITE_PREPARE_PERSISTENT option as 
one bit in that argument.  Use the new option in FTS3, FTS5, and RTREE.

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2017-06-29 15:24:57 +00:00
drh
c6603af755 Rename the "stmts" virtual table to just "stmt" without the final "s".
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2017-06-29 14:33:51 +00:00
drh
c79983312f Add the stmts virtual table to testfixture builds. Add new compile-time
options SQLITE_ENABLE_QPSG and SQLITE_ENABLE_STMTSVTAB to ctime.c

FossilOrigin-Name: 60c628293a1d8a1505e1a36dbd01b1f62bcfd7915e144044c92385423cbf8e07
2017-06-29 13:41:59 +00:00
drh
366050e89a Add the "stmts" virtual table to the amalgamation, activated when compiled
using -DSQLITE_ENABLE_STMTSVTAB.  Add the SQLITE_STMTSTATUS_REPREPARE and
SQLITE_STMTSTATUS_RUN statistics outputs from sqlite3_stmt_status() and add
corresponding columns to the stmts virtual table.  Change the numeric value
of SQLITE_STMTSTATUS_MEMUSED to get it out of the way of counter values.

FossilOrigin-Name: 88976ae31c2cbc8b75f162140d1356132f69e5b30786e39ad8ca5a1774b03621
2017-06-29 13:13:33 +00:00
drh
00d11d400b Add the SQLITE_STMTSTATUS_REPREPARE and SQLITE_STMTSTATUS_RUN options to
sqlite3_stmt_status().  Use this for two new columns in the stmts virtual
table.

FossilOrigin-Name: b0b0c8f8d548ef78584ab714ab120b01c1b83fc0d8ae2fd7626b970bab9fca58
2017-06-29 12:49:18 +00:00
drh
5aa307e2a6 Fix the exprCompareVariable() routine so that it works for non-UTF8 text.
FossilOrigin-Name: 25acd9658be792d686b3ebfaa8c3692f9830e043538ed0afecf97110a07758a4
2017-06-29 01:23:12 +00:00
drh
c080422642 Alternative implementation of exprCompareVariable(). Need to run tests on
both this branch and the original to see which one to go with.

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2017-06-28 21:47:16 +00:00
drh
3e380a4485 Make the query planners use of partial indexes based on bound variables
responsive to the SQLITE_DBCONFIG_ENABLE_QPSG setting.

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2017-06-28 18:25:03 +00:00
drh
37f906087b Merge the in the latest enhancements from trunk.
FossilOrigin-Name: 8f63c5863231eba7f853f9587b58a81102c31708402fa9962a6e91aa622fad13
2017-06-28 18:07:29 +00:00
drh
d0bbe4e9c2 Incorporate recent trunk changes.
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2017-06-28 15:56:58 +00:00
drh
f00f530b7d Build the "stmts" virtual table into the amalgamation. It is active only
when compiled using SQLITE_ENABLE_STMTSVTAB.  That option is supplied to the
command-line shell.

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2017-06-28 15:47:29 +00:00
drh
6559e2cec7 Minor tweak to the SQL grammar to make the parser tables a few bytes smaller.
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2017-06-28 14:26:37 +00:00
drh
6e11b16282 Simplify error handling logic in sqlite3_exec() to save about 40 bytes.
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2017-06-28 01:21:16 +00:00
drh
59a386ea03 Minor code simplification in the ALTER TABLE logic.
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2017-06-28 01:12:53 +00:00