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17,165 Commits 1,607 Branches 185 Tags
8e74e7ba4c54ca46412bbfe3689d589a4b0d625a
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855 Commits

Author SHA1 Message Date
drh
8e74e7ba4c Further minor enhancement and size reduction in 
sqlite3ExprAssignVarNumber().

FossilOrigin-Name: eacfdcf25796ea29b5e63499c3d7397498305ad9
 2017-01-31 12:41:48 +00:00
drh
18814dfb7e Performance optimization in sqlite3ExprAssignVarNumber(). 
FossilOrigin-Name: 5987ca1ff94ed3c1666f783bb15b16158aa7e1db
 2017-01-31 03:52:34 +00:00
drh
49c5ab243b Factor constant functions out of the inner loop since they are more expensive 
than the extra OP_Copy needed to move the result into place.

FossilOrigin-Name: 80ad317f89c46db0d0d252aefdc036a34a61183d
 2017-01-04 04:18:00 +00:00
drh
ad879ffdb5 Clean up the implementation of constant function factorization. 
FossilOrigin-Name: 2ab997e47998d261bd6190bbce5c09f3fbd4cfd3
 2017-01-04 04:10:02 +00:00
drh
1e9b53f9bc Attempt to factor out constant functions from the interior of table scans, 
since functions can often be expensive to compute.

FossilOrigin-Name: 62e9270a8057d758621da33adb27fad14225f95d
 2017-01-04 01:07:24 +00:00
drh
5424075137 Put the affinity() function implementation inside of #ifdef SQLITE_DEBUG. 
FossilOrigin-Name: f778f58ae4ea3e16f51b94591a2c1e563dcb0cde
 2017-01-03 14:39:30 +00:00
drh
01e64a1704 Merge all the latest changes from trunk. 
FossilOrigin-Name: c27cd8a8127b81d3176f6a5b9915c9b3c69574fb
 2017-01-03 14:30:28 +00:00
drh
2710b14c45 Defer size checking on row-value assignments for when the RHS is a SELECT 
until after the "*" wildcards have been expanded.

FossilOrigin-Name: 36944be6be5c42096f5da84187ff203af26b08ae
 2017-01-03 13:45:22 +00:00
drh
b67343d075 Fix a typo on a comment. No code changes. 
FossilOrigin-Name: abc27b6023e28a717bfa15648ddc152bda9c7b96
 2017-01-03 11:59:54 +00:00
drh
966e291160 Improvements to the way vector assignment size checking is done. Size checks 
when the RHS is a SELECT are deferred until after "*" wildcards are expanded.

FossilOrigin-Name: 696219b11049930cdbc38f574820f4bbaf8621bb
 2017-01-03 02:58:01 +00:00
drh
b163748e88 Improved assert()s on the sqlite3ExprListDup() logic for TK_SELECT_COLUMN. 
FossilOrigin-Name: 14da99d41f7968bf816203b4ae11c1f0d1ee0b5d
 2017-01-03 00:27:16 +00:00
drh
3f50bb84f5 Put an ALWAYS() on an unreachable branch in the sqlite3ExprListDup() routine. 
FossilOrigin-Name: 2caaaab5e07f6b76d66fbe4e93a4b956937427d8
 2017-01-02 23:18:35 +00:00
drh
47073f62bf Proposed fix for the row-value TRIGGER UPDATE problem described in 
ticket [8c9458e7].

FossilOrigin-Name: 61a442ea2ceec2cbd327dae0ff5214e1f3c69ec0
 2017-01-02 22:36:32 +00:00
drh
245ce62ea2 Detect row-value comparison size mismatches even when the size of one 
operand is obscured by an unexpanded subquery.

FossilOrigin-Name: 2c4d167ccd4be591487f404de9ee629fd484c8bf
 2017-01-01 12:44:07 +00:00
drh
a1a523a5bb Add the built-in affinity() SQL function. 
FossilOrigin-Name: 57e40e1cb1bcd3dd8473d2fdeecc9c7ff3d6192b
 2016-12-26 00:18:36 +00:00
drh
ce1bbe51b5 Add check to prevent a VList from growing after pointers to labels have been 
taken.

FossilOrigin-Name: aa23d7eaf69f5ecbf9500b2353846094cae41e6c
 2016-12-23 13:52:45 +00:00
drh
f326d66d61 Fix the VList object so that it actually works. 
FossilOrigin-Name: 9dcd85698af46fd5ba34004ca690d368c4ae3078
 2016-12-23 13:30:53 +00:00
drh
9bf755cc44 Use the VList object to replace Parse.azVar for tracking the mapping between 
SQL parameter names and parameter numbers.  There is a performance
improvement, though there are still a few hiccups in the current code.

FossilOrigin-Name: 68ecafa1425a41358c88f41efea3262f1b4490f2
 2016-12-23 03:59:31 +00:00
drh
79df77821a Refactor the Table.nRef field as Table.nTabRef for easier grepping. 
FossilOrigin-Name: 9cae4c2e300e20304ced0dc8c1415c4922185928
 2016-12-14 14:07:35 +00:00
drh
f14b7fb73b Add the sqlite3VdbeAppendP4() method for adding P4 content to the most recently 
coded instruction.

FossilOrigin-Name: 28883e8f3e92a8015fb5f6c8ae8580833931543d
 2016-12-07 21:35:55 +00:00
dan
44c5604ced Prevent the flattening or where-term push-down optimizations from obscuring 
misuses of SQL row values that can lead to crashes or assert() failures.

FossilOrigin-Name: 433d16ff3adfede3be53d5b0e0512f37e225591b
 2016-12-07 15:38:37 +00:00
drh
abfd35ea03 Performance improvement and size reduction in the Expr node allocator 
function sqlite3PExpr().

FossilOrigin-Name: 2a81763e68cdf9b8c46389b1e1a87bc2084b53e7
 2016-12-06 22:47:23 +00:00
drh
77320ea48d Fix then handling of the (oversized) integer literal -0x8000000000000000. 
FossilOrigin-Name: 3816bb415ecfd4f36430d0fcbc878e382975de60
 2016-11-30 14:47:37 +00:00
drh
36fd41e52b Add a comment to help clarify the EP_FromJoin hack in exprCodeBetween(). 
FossilOrigin-Name: 6df7c5747e0247b14bf015ef4320ddcf6fccf694
 2016-11-25 14:30:42 +00:00
dan
4b72524072 Code constant vector components outside of any loops in CASE and BETWEEN 
expressions. Fix for [1a684656].

FossilOrigin-Name: c08aff13ead3e6a8b92c0f031b08f7e556922e70
 2016-11-23 19:31:18 +00:00
drh
66adb0a848 Avoid storing redundant fields in sorter records when the sort-key 
and data have fields in common.

FossilOrigin-Name: b835cf3e507b910b6a3e0f802ce2c40a72d0c227
 2016-11-11 19:08:00 +00:00
dan
257c13fa00 Avoid storing redundant fields in sorter records when the sort-key and data have 
fields in common (as in "SELECT a FROM t1 ORDER BY 1").

FossilOrigin-Name: 0af62fdbd8e2aab14718ff8bcb5934f05463c176
 2016-11-10 20:14:06 +00:00
drh
9b4eaebc68 Enhance the OP_IdxInsert opcode to optionally accept unpacked key material. 
FossilOrigin-Name: 89d958abbac45f2ca5954080cd9e74ec9a07ebb2
 2016-11-09 00:10:33 +00:00
drh
1ad93a003d Use NOT NULL partial indexes when the query is constrained by a single 
LIKE or GLOB.

FossilOrigin-Name: 9b3a3b41b59a7ce7d3dd82c7402d6fdc6a5ca43c
 2016-11-02 02:17:52 +00:00
drh
c9b39288ae Size and performance optimizations on the sqlite3ExprAssignVarNumber() routine. 
FossilOrigin-Name: 109852e51e2cc2674940ba3e5097a92e66f88bb8
 2016-10-03 16:33:14 +00:00
drh
de25a88c50 Avoid unnecessary strlen() calls in sqlite3ExprAssignVarNumber() by passing in 
the token length from the parser.

FossilOrigin-Name: d15ae2e530cffea60263f203ac5f89b6790f4bd5
 2016-10-03 15:28:24 +00:00
drh
cca8a4ad6f Fix an obsolete comment on a variable definition in expr.c. No code changes. 
FossilOrigin-Name: 012ff6dd306328f7ea71a6600471c871e7ffe37b
 2016-10-03 12:56:48 +00:00
drh
94881d732b Fix an always-true conditional left over from the previous commit. 
FossilOrigin-Name: ab12fce3318db447995e1465f34a1e43cd623d6a
 2016-09-30 21:20:37 +00:00
drh
9b40d13f43 Fix the Parse.aColCache column cache so that all of the valid entries are 
in the first Parse.nColCache slots.

FossilOrigin-Name: 6028502059ccbd3699637b7a70a6d8ce1b7c3dad
 2016-09-30 20:22:27 +00:00
drh
209bc522b0 Add the EP_Leaf flag bit to the Expr.flags field to indicate Expr 
nodes that do not have substructure.  Use that bit to avoid unnecessary
recursion.

FossilOrigin-Name: 8a6ea455cd1bf42ae0a7f1f1789baf88d782db13
 2016-09-23 21:36:24 +00:00
drh
e1c03b6233 Use sqlite3ExprAlloc() instead of sqlite3PExpr() for leaf nodes in the 
expression tree, where appropriate.  This is both smaller and faster.

FossilOrigin-Name: afac0709cec577a7851e3711730712cf12eeb6af
 2016-09-23 20:59:31 +00:00
drh
511f9e8d29 Remove the internal sqlite3CodeOnce() interface, replacing it with a 
direct call to sqlite3VdbeAddOp0(v,OP_Once).  Slightly smaller and faster.

FossilOrigin-Name: c3774c6a5fe48af91fda28e9e18c6ed9053ea992
 2016-09-22 18:53:13 +00:00
drh
c332cc30d9 Improved performance in sqlite3ExprCodeTarget(). 
FossilOrigin-Name: 75146165dcc1ae1faab46b1a7333ef795d5eeac5
 2016-09-19 10:24:19 +00:00
drh
9e5eb9c8cc Revise the implementation of OP_Once so that it is smaller, faster, and uses 
less memory.  This also fixes an obscure bug introduced 3 days ago by check-in
[5990a1bdb4a073].

FossilOrigin-Name: 6bf5ba10d28f1b0a32aa9a560ae3143a1235eadb
 2016-09-18 16:08:10 +00:00
drh
b80dbdc2f7 Fix a out-of-order variable declaration for some compile-time configurations. 
FossilOrigin-Name: 6ac932c92a61cd68cc5b1816216e4748a5c7b3cd
 2016-09-09 15:12:41 +00:00
dan
773d3afaa3 Remove an unnecessary branch from expr.c. 
FossilOrigin-Name: 7cc9746c5414e02012efb8180f9eca2646800e74
 2016-09-06 17:21:17 +00:00
drh
ed24da4b16 Enhance the sqlite3GetTempRange() and sqlite3ReleaseTempRange() internal 
routines so that they use sqlite3GetTempReg() and sqlite3ReleaseTempReg()
when nReg==1.

FossilOrigin-Name: 4071da2f87a2f24a279ac3bced8c794ad374b47c
 2016-09-06 14:37:05 +00:00
dan
fad0e70c63 Fix a typo in a comment in expr.c. 
FossilOrigin-Name: 288e934f356ff6276b3e7581ac0f998ca6e93610
 2016-09-06 12:04:50 +00:00
drh
9f24b53dcc Simplified logic to extract a column from a row value. 
FossilOrigin-Name: e8f105c3009e9b667db2afc0088b020a2b94d370
 2016-09-05 22:50:48 +00:00
drh
c1bcd9cc3e Fix an assert() so that it does C-compiler does not combine an assert() 
conditional with a production code conditional and thereby confuse the mutation
testing script.

FossilOrigin-Name: 2fa5288a7ef43f1fb26037c1b5e84b7b90400623
 2016-09-05 19:57:46 +00:00
drh
b29e60c448 Catch vector size mismatch problems during name resolution to avoid later 
problems.

FossilOrigin-Name: 56562a0346170cf7b72445976864b058437a8ac3
 2016-09-05 12:02:34 +00:00
dan
80aa545337 Fix a problem causing the affinity of sub-select row-value elements to be ignored in some contextes. 
FossilOrigin-Name: 7d9bd22c0715ede2592ee1fa7ebc215aded1ca1b
 2016-09-03 19:52:12 +00:00
drh
4910a76d45 Performance optimizations. 
FossilOrigin-Name: f1d06c49ba0d814dc7ffb538aac3f4e6251fd8f0
 2016-09-03 01:46:15 +00:00
drh
106526e1bc Fix a minor problem in sqlite3FindInIndex() related to rowids being used 
as part of the index.

FossilOrigin-Name: 829f802be7d4647dd815b739bbc9e1d1ac6a224d
 2016-08-26 22:09:01 +00:00
drh
a84a283d18 Fix the sqlite3FindInIndex() to ensure that it always uses a prefix of 
the index and uses no repeated columns.  Enhanced comments.

FossilOrigin-Name: b9fc89e432fbe4e5b41959a42797641907e075e3
 2016-08-26 21:15:35 +00:00