drh
31d6fd5507
Add the TK_IF_NULL_ROW opcode to deal with non-NULL result columns in the
...
result set of a view or subquery on the RHS of a LEFT JOIN that gets flattened.
FossilOrigin-Name: 3a5860d86fadcf924316707918bf283d26c53b1473e5e67f5cff59d18c2a7742
2017-04-14 19:03:10 +00:00
mistachkin
b1ed717f18
Make USE_FULLWARN=1 the default for MSVC and fix harmless compiler warnings.
...
FossilOrigin-Name: 6bf673767b8e5cedef1acff795cbe524fab8db2525c06424db4e038934a33936
2017-04-14 14:50:34 +00:00
dan
b8d29c2f75
Fix a segfault that could occur if an indexed expression was used in a
...
comparison operation within the result-set of a SELECT statement.
FossilOrigin-Name: d6bb7c42ff6309ce168ccdcf03b4cdabfccfc9e2a911d254ac7dc4fea4aa2bc1
2017-04-11 11:52:25 +00:00
drh
aca19e19a8
Proof of concept for the ability to use the expression columns in an index
...
on expressions in place of equivalent expressions in the result set or in
the WHERE clause. This check-in compiles but is mostly untested.
FossilOrigin-Name: a52ef2ad7c0e14b78b801f16a1f6ea8d8fa9ae5d7d810e18dd24c600b662a312
2017-04-07 19:41:31 +00:00
drh
dbd6a7dc06
Split off sqlite3DbFreeNN() from sqlite3DbFree() and use it in cases where
...
we know that the argument to be freed is never NULL.
FossilOrigin-Name: ad90e8bb5e47945607c8fb47b6ade8cfc52a9b684805cc40132629be0ecc14cc
2017-04-05 12:39:49 +00:00
drh
ac48b751e2
Save a few bytes and a few CPU cycles in sqlite3ExprListDelete() routine.
...
FossilOrigin-Name: 9e6c939144a129b36bb119120442a4a021e00187783da211315d4bb13acd7c3a
2017-04-05 11:57:56 +00:00
drh
f4dd26c5a0
Remove a conditional made unreachable by the previous ExprList enhancement.
...
FossilOrigin-Name: a1cf44763277b6c745b5b5509ca9129b6c3231608b4d1c8aec2815b64b5a2a07
2017-04-05 11:49:06 +00:00
drh
43606175e2
Combine the ExprList_item objects and the ExprList wrapper into a single
...
memory allocation, for improved performance and reduced footprint.
FossilOrigin-Name: 2b6560ad88b92820c383bcdc1e30c06f8b081ef7c6d9b1af71d2bb76c83e35cd
2017-04-05 11:32:13 +00:00
drh
ba28b5ab0a
Fix a possible NULL pointer dereference in following an OOM error
...
in sqlite3ExprIsInteger(). Problem found by OSS-Fuzz.
FossilOrigin-Name: 5ec655e8e817c1ed3bfb2e576745a7cef441494ad7baf1bf9f8895e98ac19c5a
2017-03-12 20:28:44 +00:00
drh
1ed1e616f7
Remove an obsolete assert() in the IN operator code generation.
...
FossilOrigin-Name: 18bf6aca2ac86478fd12d5020f3a41cfd2bd2dc3defe2298411f79ad308a6f73
2017-03-12 19:39:00 +00:00
drh
5c258dc1cc
Change two MallocZero() calls into MallocRaw() to avoid unnecessary memset().
...
FossilOrigin-Name: ff5e733cbffd73faa4046e0f1c7f24bb6e131738
2017-02-16 17:18:07 +00:00
drh
d879e3eb8d
Change all legacy instances of "#if SQLITE_DEBUG" to "#ifdef SQLITE_DEBUG" for
...
consistency.
FossilOrigin-Name: 670f10b24230863688270d12ac519609ade2302b
2017-02-13 13:35:55 +00:00
drh
f9463dfbcf
Fix indexes on expressions so that they can be actually used with
...
a COLLATE clause.
FossilOrigin-Name: e464b919f76520b45bb58983c6702db59d820ee4
2017-02-11 14:59:58 +00:00
drh
13ac46eea2
Ensure that indexed expressions with collating sequences are handled
...
correctly. Proposed fix for ticket [eb703ba7b50c1a5].
FossilOrigin-Name: 9689d04b8250139e32078b2aa9748edcc6231bcd
2017-02-11 13:51:23 +00:00
dan
a7466205ca
Modify the sqlite3SelectDup() routine to avoid recursing on Select.pPrior.
...
FossilOrigin-Name: a7674ead5be986c66f7d61d598adc7e5728bcd30
2017-02-03 14:44:52 +00:00
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
