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16583 Commits

Author SHA1 Message Date
dan
7887d7f24d Fix a buffer overrun in the code for handling IN(...) operators when the LHS of the operator contains indexed columns or expressions. 
FossilOrigin-Name: f41a0391b732a8c4ad188163f34a0f4a22237bb5
 2016-08-24 12:22:17 +00:00
drh
ac6b47d164 The previous OOM fix was bad. Back it out and replace it with a better one. 
FossilOrigin-Name: 1e3bc3698a4b779e6af8e3c727929c4dbddf3edb
 2016-08-24 00:51:48 +00:00
drh
894241c847 Avoid a potential null-pointer dereference following an OOM. 
FossilOrigin-Name: 25f6ed8de4df9c9890d4a352a6d11084433e82ea
 2016-08-24 00:25:27 +00:00
drh
e835bc1285 Simplify the row value misuse error message. 
FossilOrigin-Name: 838c50a5bf46fd0340839d577fa28ba02b4f2034
 2016-08-23 19:02:55 +00:00
drh
66860af3dd Fix a problem with rowvalue UPDATE when the rowvalue is not the left-most and 
the RHS is a multi-column subquery.

FossilOrigin-Name: e149e6b93a9afb3d574309c0db60e221e24078f7
 2016-08-23 18:30:10 +00:00
drh
abb9d5f189 Fix an uninitialized variable in CASE expression code generation. 
FossilOrigin-Name: c8ffae05e13033ec7425bf0f002df31f550bb7f1
 2016-08-23 17:30:55 +00:00
drh
12abf408ff Fix the vector BETWEEN operator so that it only evaluates the left-most 
vector expression once.  Add support for vector comparisons in the CASE
operator.

FossilOrigin-Name: 07e69f43a294d35b5145a2b0242ee42d50adab14
 2016-08-22 14:30:05 +00:00
drh
db45bd5e82 Reinstate the mechanism in BETWEEN that avoids evaluating the first expression 
more than once, but fix the affinity extractor so that it works with this
mechanism.  The de-duplication of the first expression still does not work
for vector expressions, though.

FossilOrigin-Name: 2f39987f21bd6dae8d2be610a1fd5f06f8878e9e
 2016-08-22 00:48:58 +00:00
drh
84b19a3da1 The docs promise the in "x BETWEEN y AND z" the x expression is only evaluated 
once.  That is no longer true, and so some tests are failing.  This needs to
be fixed before merging to trunk.

FossilOrigin-Name: e50d264fdc2f08d19202c68f73f18df301cb233d
 2016-08-20 22:49:28 +00:00
drh
d832da7f40 Further comment enhancements. No changes to code. 
FossilOrigin-Name: d4562a9e7b1eaff41466210e3a0caaf374ec5a92
 2016-08-20 21:11:25 +00:00
drh
76dbe7a8d0 Clarification of code comments in expr.c. Clean up the implementations 
of sqlite3ExprIsVector() and sqlite3ExprVectorSize() slightly.

FossilOrigin-Name: 4fb66d6592b141a4a71359250dbd1ac454569cb9
 2016-08-20 21:02:38 +00:00
drh
8bd0d58e1c Fixes for problems following OOM errors. 
FossilOrigin-Name: 9041ee4a6f0e8389297f887f1431ab5cfe783390
 2016-08-20 18:06:14 +00:00
drh
9854260bca Do not duplicate the Expr.pLeft subtree of a TK_SELECT_COLUMN node. 
FossilOrigin-Name: 8384c77ebb3f65fbc54c199885926f2066f0b140
 2016-08-20 17:00:16 +00:00
dan
f358009a93 Fix a segfault that could occur if a query that used a vector comparison contained certain types of syntax errors. 
FossilOrigin-Name: 203f07c5e140e74cf91d0c1e20135c21236f0fc1
 2016-08-20 15:01:24 +00:00
drh
9e730f0bb8 Improvements to the vector comparison splitter in exprAnalyze(). 
FossilOrigin-Name: a3ffd283bc931b04170ef737e56bced33d27f06d
 2016-08-20 12:00:05 +00:00
drh
8762ec1935 Improvements to comments. No code changes. 
FossilOrigin-Name: 4165d20f64d778a4e48f511a37cfced8579d4dbe
 2016-08-20 01:06:22 +00:00
drh
a1251bc40d Add support for vector assignments in the SET clause of an UPDATE statement. 
FossilOrigin-Name: f320d47d6b7b08d9552c8444004bc256348bda90
 2016-08-20 00:51:37 +00:00
drh
fc7f27b9d2 Change the way TK_SELECT_COLUMN is handled so that the subquery is only 
generated once even if part of the vector comparison is used for indexing
and the other part is now.  This change also is a pathway to vector assignment
in UPDATE statements.

FossilOrigin-Name: d8feea7dcde83179bff303072426561cfe825e58
 2016-08-20 00:07:01 +00:00
drh
8d25cb90cd Replace the magic number (-2) with its symbol XN_EXPR in the 
exprMightBeIndexed() routine.  No logic changes.

FossilOrigin-Name: d4a5af69cc3bde6f8c02075c07b4d47a0252392d
 2016-08-19 19:58:06 +00:00
drh
39a11819f3 Improved comments on sqlite3CodeSubquery(). No changes to code. 
FossilOrigin-Name: acea4ee136def4815d22eec240c5903a72bde9bd
 2016-08-19 19:12:58 +00:00
drh
a15a8bc822 Show the WhereTerm.iField value on debugging output, when it is non-zero. 
FossilOrigin-Name: 931c95358d8bc02f3e3d8ee4e545a07b2d2c97e8
 2016-08-19 18:40:17 +00:00
drh
4602b8e89d Fix an obsolete comment on codeEqualityTerm(). No changes to code. 
FossilOrigin-Name: d07be5afb0a915769382dfd815403f8832cb3eec
 2016-08-19 18:28:00 +00:00
drh
b684fd5c4a Merge recent enhancements from trunk. 
FossilOrigin-Name: b17872363b60edab05a5d382a44038aad91e4d9f
 2016-08-19 15:41:24 +00:00
drh
fcc31545bc Enhance the VACUUM command so that it can operate on an attached database. 
FossilOrigin-Name: 083f9e6270fa4faa402b91231271da4f3915c79f
 2016-08-19 15:15:55 +00:00
drh
6a754dc767 Disable row counting on queries run while doing a VACUUM. 
FossilOrigin-Name: ad35ef116296e5d6aaeb9ef260bf35bee3bd6d20
 2016-08-19 15:12:38 +00:00
drh
9ef5e7708a Add the capability to VACUUM an attached database by specifying the schema 
name as an argument to the VACUUM command.  Since version 2.0, VACUUM has
accepted an argument which was silently ignored.  Now it has meaning.

FossilOrigin-Name: 29d63059b4d2bb612523ac55ebfef040d054a64f
 2016-08-19 14:20:56 +00:00
drh
61ea610cd0 Change the name of Db.zName to Db.zDbSName for improved long-term code 
maintainability.

FossilOrigin-Name: cb9865e14db1c0076618f13400151112f84960cb
 2016-08-18 22:19:03 +00:00
drh
e59be01072 Fix a zName to zDbSName conversion missed in the previous check-in. 
FossilOrigin-Name: d7cf423cdccada2b0a4b7cc79ccf5f35d6f43212
 2016-08-18 20:56:39 +00:00
drh
03181c8c27 Fix a SQL NULL handling bug in the vector IN operator code generation. 
FossilOrigin-Name: 936146b12e27784f15a68fe65732c6d92c3a12f3
 2016-08-18 19:04:57 +00:00
drh
48cb3a7600 Display SELECT_COLUMN expressions in the .wheretrace debugging output. 
FossilOrigin-Name: 3b27a5da100037f75a4efc15e0354a6aa94194f8
 2016-08-18 18:09:10 +00:00
drh
db97e56217 Display VECTOR expressions in .wheretrace and .selecttrace debugging output. 
FossilOrigin-Name: 157347e2580e5078c4081d602e9d1a82d194e719
 2016-08-18 17:55:57 +00:00
drh
c8d0b0b9d4 Since the TK_VECTOR token is not actually used by the parser, make it an 
extra token code added by the tool/addopcodes.tcl script during parser build.

FossilOrigin-Name: b40b202c1f82808d2240e87b22f1e78b2208cb26
 2016-08-18 15:36:03 +00:00
drh
5ea494425f Merge recent enhancements from trunk. 
FossilOrigin-Name: 4768a1066cb9c7627064d7efec44188d6755cb03
 2016-08-18 15:21:16 +00:00
drh
a79e10b665 Simplify the vector comparison code generator logic, and the resulting 
VDBE code.

FossilOrigin-Name: e2ad0b5d8e1e83118c12889150aca2f2a6b2bdde
 2016-08-18 15:15:29 +00:00
drh
69c338263a Rename the Db.zName field to Db.zDbSName to make it more descriptive and to 
distinguish it from all of the other "zName" variables scattered throughout
the code.

FossilOrigin-Name: 92a22f01343a898455fd61c3b8e7d7c954f5b569
 2016-08-18 14:33:11 +00:00
dan
8c2b1fde58 Fix a problem in the fts5 snippet() auxiliary function. 
FossilOrigin-Name: a861713cc6a3868a1c89240e8340bc7b2b9559da
 2016-08-17 11:14:39 +00:00
drh
0f832ddc06 Fix a bug in destructor processing of Lemon. That has no impact on the 
SQLite grammar.  The bug was introduced by prior work to optimize the
Lemon-generated parser used by SQLite.

FossilOrigin-Name: f9035b8e2ea331801402bcb62b203ab092949770
 2016-08-16 16:46:40 +00:00
drh
0f825a7e26 Remove an unnecessary stack variable from sqlite3VdbeExec(). 
FossilOrigin-Name: c54bd9c82dd34951dc87848c0b19fcccaef928db
 2016-08-13 14:17:02 +00:00
drh
af69eda63e Improvements to commits. No code changes. 
FossilOrigin-Name: 18f5a3bee4f870be4644a6042a20081c46edb7d0
 2016-08-13 13:03:46 +00:00
drh
a2f629251f Fix to the vector less-than operator. All legacy tests passing now. 
FossilOrigin-Name: ec70a67ebc997f457be4d52d8affc37e142dc3ff
 2016-08-13 12:37:47 +00:00
dan
460d38f15e Fix an fts5 problem with corrupt database handling found by address-sanitizer. 
FossilOrigin-Name: e22252e1da4cd9e41b970970a1c4f466aa6cc133
 2016-08-13 10:34:12 +00:00
drh
79752b6e63 Attempt to simplify the logic and generated code for vector comparisons. 
Basic comparison operators are working, but there are many indexing test
failures still to be worked through.

FossilOrigin-Name: dfc028cfbe7657d20727a2670ecadb1575eb8cbb
 2016-08-13 10:02:17 +00:00
dan
3b96d1e2e4 Fix a buffer overread in fts5. 
FossilOrigin-Name: fcfbee6c7d33a9ae7feb46044a0c2fe680460d39
 2016-08-13 06:38:31 +00:00
drh
471b4b92bd Add VdbeCoverage() macros on newly added VDBE branch operations. 
FossilOrigin-Name: 381aa73141db8ec59adbcb09e71af660ee4ae5ce
 2016-08-12 11:25:49 +00:00
drh
a48d7e7749 Fix a post-OOM memory leak. 
FossilOrigin-Name: 14009b32b955b42cfd5f0c2ce7d4b3ce19ce201e
 2016-08-12 11:01:20 +00:00
dan
1bf4ca7c42 Add the "modeof=<filename>" URI parameter to os_unix.c - used to specify a file to copy permissions from when a new database is created. Also allow passing NULL as the second parameter to sqlite3rbu_vacuum(). 
FossilOrigin-Name: ed406d31ff54ee3de8db91690a966e5c561f8f94
 2016-08-11 18:05:47 +00:00
drh
088645b090 Merge recent changes from trunk. 
FossilOrigin-Name: 959677b97ba15f786936c762e2e68df1151d7ed0
 2016-08-11 12:31:21 +00:00
dan
17994e3bca Fix some problems with handling "no such collation sequence" errors. 
FossilOrigin-Name: 8278be06fa69e3266866220bdaf5be45a5fcfa23
 2016-08-11 12:01:52 +00:00
dan
6ff4627d5d Fix a 1 byte buffer overwrite in the "sqldiff --rbu" command. 
FossilOrigin-Name: ab83d7077da80ddbcf399d0797d79e964dc64f0e
 2016-08-11 09:55:55 +00:00
drh
c73bd0a5cc Fix a harmless compiler warning in FTS5. 
FossilOrigin-Name: 2ea0c8b46eefd4874f021f8dfd344be751f2034f
 2016-08-11 01:24:56 +00:00