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c1bd84124b1877b6afcdf7229ed00aefcadc2860
Commit Graph

703 Commits

Author SHA1 Message Date
drh
c1bd84124b Merge recent enhancements from trunk, including table-valued expressions. 
FossilOrigin-Name: b9927c876c1d4e146cb6a603d82cd2489594084d
 2015-08-20 23:45:59 +00:00
drh
8a48b9c0b1 Minor refactor of the SrcList object so that it is able to hold the argument 
list to a table-valued-function in the FROM clause.

FossilOrigin-Name: b919376147597c4b73421abe5788f893baf1560b
 2015-08-19 15:20:00 +00:00
drh
07194bff0e Fix a bug in sqlite3ExprContainsSubquery(). 
FossilOrigin-Name: be254715b5f56900e57ed57a179ca8d7bb68685d
 2015-08-13 20:34:41 +00:00
drh
bec2476afc Merge in all the trunk changes from the previous year. This breaks the 
cursor-hint mechanism, but provides a baseline for trouble-shooting.

FossilOrigin-Name: 82a7a61bc0883b1e7432548e4890791717aa1bb3
 2015-08-13 20:07:13 +00:00
drh
9c7c913cd6 Cache the sqlite3_context structure in the P4 operand of VDBE programs 
for faster SQL function dispatch.

FossilOrigin-Name: 2abc44eb3b9d489321baa50bc25e17dafbda3687
 2015-06-26 18:16:52 +00:00
drh
5f02ab0976 Make sure that the likelihood() function does not mess up generation of 
result-set code when it is used (inappropropriately) in a result-set 
expression.

FossilOrigin-Name: 7cdbae625eb029538a693d2bebec465a6f65fb90
 2015-06-20 13:18:34 +00:00
drh
36b80349b7 Add the OP_ColumnsUsed opcode (when compiled with 
SQLITE_ENABLE_COLUMN_USED_MASK) as a hint to the b-tree layer as to which
columns of a btree cursor will be used.

FossilOrigin-Name: 711a176cbfad5dde6defa9648fba6d0d663af134
 2015-06-12 12:54:15 +00:00
drh
72bc8208f0 When generating code for partial indexes, be sure not to modify the 
index condition expression in the schema.

FossilOrigin-Name: e63d01c69c3e50f49ee3022a519c4f3e91f00520
 2015-06-11 13:58:35 +00:00
drh
38b4149ca1 Factor out the TreeView parse tree printing module into a separate file. 
FossilOrigin-Name: c32ce54ca46a4be4373983be6fd44b1f3a0250d1
 2015-06-08 15:08:15 +00:00
drh
4490c40b90 Split FROM-clause subquery flattening and code generation into separate loops. 
FossilOrigin-Name: be8e3fc70e4c13b28b07985df3457960f58ffddd
 2015-06-05 22:33:39 +00:00
drh
97bae794c2 Add a new opcode to the VDBE that gives the b-tree a hint about the set 
of columns in a table or index that are actually used by the query.

FossilOrigin-Name: f167bba446b78dd7538d0b2bae3e6678f3b1ba28
 2015-06-05 15:59:57 +00:00
drh
d62fbb50e6 Change the name of SrcList.a[].zIndex to the more descriptive 
SrcList.a[0].zIndexedBy.

FossilOrigin-Name: 6a9cf063379118dbb95c6cdc6d60af50e9867177
 2015-06-04 12:08:53 +00:00
drh
05883a3409 Rename SQLITE_AFF_NONE to SQLITE_AFF_BLOB. 
FossilOrigin-Name: bce3f04186cd2d69414a5a98b5b77dc8f060554a
 2015-06-02 15:32:08 +00:00
drh
fcb9f4f3ca Corrections to comments in expr.c. No code changes. 
FossilOrigin-Name: f925389eaf5bf8962a28fcaa652b75caa606efba
 2015-06-01 18:13:16 +00:00
drh
0a96931b76 Fix a minor coding inefficiency found during pre-release inspection. 
FossilOrigin-Name: cc50883d67334507227e1384fef6cc7c93fd7de1
 2015-05-05 16:57:52 +00:00
drh
00808deed0 Improvement to "ID" formatting on the ".selecttrace 0x1ff" debugging function. 
FossilOrigin-Name: 01c50cee37bfaddfecdda014728c35a1be1d991a
 2015-04-23 13:00:42 +00:00
drh
b496a8f547 Add an ALWAYS() around a new branch that was made unreachable by an even 
newer change.

FossilOrigin-Name: 592c010478fba7410424f011a62e019c826f1ac3
 2015-04-20 01:13:33 +00:00
drh
d0c7305313 Fix a potential NULL pointer deference on a corrupt database schema. 
FossilOrigin-Name: dc61b292d8eaf422ca8a2b18f1caccef1a5389fd
 2015-04-19 19:21:19 +00:00
drh
7693c42f1a In the expression-tree comparison routine, do not compiler Expr.iColumn 
and Expr.iTable for TK_STRING expressions.

FossilOrigin-Name: b67bb16c72c3e015ea82665ada9b5d3289ef6fb2
 2015-04-17 19:41:37 +00:00
drh
772460fd4c Improvements to the way VALUES clauses are parsed. 
FossilOrigin-Name: ec5a493ad27593ca78899b3001630c1898b940ff
 2015-04-16 14:13:12 +00:00
drh
1978d171cb When adding the implied "LIMIT 1" to the end of a scalar subquery, make sure 
that subquery is not a VALUES-only query as such queries cannot deal with
LIMIT clauses.

FossilOrigin-Name: 7c27310bdf6b4af44a0811a2787ed64966d720d2
 2015-04-15 05:20:44 +00:00
drh
311efc70a7 Add a test case for what was formerly thought to be an unreachable condition: 
when the LHS of an OR operator contains an error and the RHS contains an IN
operator.

FossilOrigin-Name: 3872742591add4e94033484c2844e7d7ab69674b
 2015-04-15 04:20:58 +00:00
drh
74893a4cdb Fix a potential NULL pointer dereference following a syntax error. 
FossilOrigin-Name: 8d27e3e16a9be79fe227e833f4770ebe09a9d90b
 2015-03-22 10:23:17 +00:00
dan
80103fc614 Fix a problem causing collation sequence names to be dequoted multiple times under some circumstances. 
FossilOrigin-Name: eddc05e7bb31fae74daa86e0504a3478b99fa0f2
 2015-03-20 08:43:59 +00:00
drh
6728cd9180 Propagate COLLATE operators upward through function calls and CASE operations. 
And do not flatten an aggregate subquery into a query that uses other
subqueries.  Fixes for tickets [ca0d20b6cdddec5] and
[2f7170d73bf9], respectively.

FossilOrigin-Name: 24e78b8d65734a6a8ae21a20542cd1839e756fb1
 2015-02-09 18:28:03 +00:00
drh
2308ed3854 Propagate the COLLATE operator upward through function calls. 
Initial fix for ticket [ca0d20b6cdddec5e8].

FossilOrigin-Name: c053448a55f9d030e8ffe88cf4fc14ada7f6ec19
 2015-02-09 16:09:34 +00:00
drh
885a5b030e Disable the query flattener for aggregate subqueries if the parent query 
uses other subqueries in its result set or WHERE clause or ORDER BY clause.
Preliminary fix for ticket [2f7170d73bf9abf8].  However it still contains
a defect similar to the COLLATE problem of [ca0d20b6cddd].

FossilOrigin-Name: 0b7d65e3fda676d193347cb782854c28a48252af
 2015-02-09 15:21:36 +00:00
drh
63f845734e Rename the internal "EP_Constant" bitmask to a less misleading "EP_ConstFunc". 
FossilOrigin-Name: 4ef7ceced2b0000d21f7f8014384c04a0e4661d3
 2015-02-09 14:07:07 +00:00
drh
a58d4a9612 Fix a (almost always harmless) read past the end of a memory allocation 
that comes about because the Expr.pTab field is checked on an
EXPR_REDUCEDSIZE Expr object before checking the Expr.op field to
know that the Expr.pTab field is meaningless.

FossilOrigin-Name: e098de691002a78270540430b0df1e120582b53f
 2015-01-27 13:17:05 +00:00
dan
ce8f53d447 Fix an assert() that may fail following an OOM error. 
FossilOrigin-Name: 5f592359d6d41708da3b3ac9d987a1631bfa3d88
 2015-01-21 17:00:57 +00:00
drh
655814d2bd Fix three crash problems discovered by afl-fuzz. 
Ticket [a59ae93ee990a55].

FossilOrigin-Name: fe5788633131281a0f27c5b75993ce2ff958bfeb
 2015-01-09 01:27:29 +00:00
drh
72673a24e2 If a table is the right operand of a LEFT JOIN, then any column of that 
table can be NULL even if that column as a NOT NULL constraint.
Fix for ticket [6f2222d550f5b0ee7ed].

FossilOrigin-Name: 6f6fcbe4736b9468a495c684d5eebc8bfe5c566a
 2014-12-04 16:27:17 +00:00
drh
113762a284 Add new requirements marks associated with the file format documentation. 
No changes to code.

FossilOrigin-Name: 6d00bcca6ed1903fb17275752cab71c14392355b
 2014-11-19 16:36:25 +00:00
dan
dd715f7c57 Do not automatically remove the DISTINCT keyword from "a IN (SELECT DISTINCT ...)" expressions. Fix for [db87229497]. 
FossilOrigin-Name: 55e453aadbb676dda07f0fa537d39ce184ef636c
 2014-11-14 15:28:33 +00:00
drh
059b2d50e1 Enhance the automatic index logic so that it creates a partial index when 
doing so gives the same answer for less work.

FossilOrigin-Name: d95d0313c447f5baeabdb17284d8606331ab7d49
 2014-10-24 19:28:09 +00:00
drh
ccaba81e26 Show the TK_DOT operator in the TreeView debugging output. 
No changes to production code.

FossilOrigin-Name: 07c89940c49a5dca3205a4b6fa8290f23bcb6e10
 2014-10-01 13:17:34 +00:00
drh
4fa4a54f7e Remove the SQLITE_ENABLE_TREE_EXPLAIN compile-time option. Add alternative 
debugging display routines: sqlite3TreeViewExpr(), sqlite3TreeViewExprList(),
and sqlite3TreeViewSelect().

FossilOrigin-Name: 4ff51325d6b41d0c59e303b573700ec80c51d216
 2014-09-30 12:33:33 +00:00
drh
feada2df39 Do not allow parameters in a DEFAULT clause of a CREATE TABLE statement. 
Ticket [78c0c8c3c9f7c1].

FossilOrigin-Name: 1ad2bc1ed4c4ac81ac67a9660761f0eeb47c7fef
 2014-09-24 13:20:22 +00:00
drh
eb9b884c2d Improved ".selecttrace" output. 
FossilOrigin-Name: c0b61f7092a7fd2c5f51db26ce7a7a5c75c227fe
 2014-09-21 00:27:26 +00:00
drh
9300adbc79 Fix the SELECTTRACE_ENABLE macro so that it doesn't cause problems for 
testfixture.  Add new SELECTTRACE() calls.

FossilOrigin-Name: f1ba68f131d2f03e4a7bc50cde23a7609d384279
 2014-09-20 20:24:49 +00:00
drh
236241aeb0 Simplify the way the column cache is managed around OP_Move instructions. 
FossilOrigin-Name: 320556233e19cdd9d590a09655c3465754700d39
 2014-09-12 17:41:30 +00:00
peter.d.reid
60ec914c74 Fix typos in comments. No code changes. 
FossilOrigin-Name: e62aab5e9290503869e1f4d5e0fefd2b4dee0a69
 2014-09-06 16:39:46 +00:00
drh
53932ce8fa Avoid an unnecessary OP_Move operation for expression subqueries. 
FossilOrigin-Name: 462f42af52f146fd328ddcbbe78c8444ef7bd2c3
 2014-08-29 12:29:39 +00:00
drh
4169e430a2 Allow CAST expressions and unary "+" operators to be used in the DEFAULT 
argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of
range constraints interpreted by STAT3/4.  This involves a rewrite of the
implementation of the CAST operator.

FossilOrigin-Name: 91d8a8d0b792ea5c4fe68fd9caaf3345eddea486
 2014-08-25 20:11:52 +00:00
drh
0c4de2d96d A simpler fix for ticket [3a88d85f36704eebe1] - one that uses less code. 
The error message is not quite as good, but as this error has apparently
not previously occurred in over 8 years of heavy use, that is not seen as
a serious problem.

FossilOrigin-Name: 0ad1ed8ef0b5fb5d8db44479373b2b93d8fcfd66
 2014-08-06 00:29:06 +00:00
drh
1cfc9aa993 Ensure that aggregate functions are not used when evaluating a default 
value for a table column.
Candidate fix for ticket [3a88d85f36704eebe134f7].

FossilOrigin-Name: 29ba812825bf06ef230f2480bba0579653f0a52d
 2014-08-05 21:31:08 +00:00
drh
4336b0e64a Improved VdbeCoverage() macros. A few minor simplifications to generated 
VDBE code.

FossilOrigin-Name: 01f60027ad1841051fa493a646141445f8971357
 2014-08-05 00:53:51 +00:00
drh
7248a8b2b9 Further enhancements to IN-operator processing. 
FossilOrigin-Name: 7fdf26da1d2f40b80f9e44ff6f5af22ace8f95f3
 2014-08-04 18:50:54 +00:00
drh
a976979b6e Refinements to the enhanced IN-operator logic. 
FossilOrigin-Name: 92ba2821468ecbfac2469161d81c873de67b2243
 2014-08-04 16:39:39 +00:00
drh
bb53ecb1db Enhancements to the code generator for the IN operator that result in much 
faster queries in some cases, for example when the RHS of the IN operator
changes for each row of a large table scan.

FossilOrigin-Name: 436e884215e2b33ca3fbb555362237b12827c07a
 2014-08-02 21:03:33 +00:00