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a744167956
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23917 Commits

Author SHA1 Message Date
drh
a744167956 Optimization to sqlite3TriggersExist() saves over 700K CPU cycles. 
FossilOrigin-Name: 5043a3507e0781878e0e1bea5095a33273958820baead4af8fc2929e9d7c07ee
 2022-04-07 14:03:07 +00:00
drh
4cd8296f39 Avoid compiler warnings about the new sqlite3Show() debugging routines 
begin "defined but not used".

FossilOrigin-Name: 47ddc26974fbad8233c953d435e79d4f5dd5e09fbd684ea5f4ad32f4cae6cae6
 2022-04-07 13:48:34 +00:00
drh
9c949b1c46 Omit an unnecessary initialization in tokenExpr(). 
FossilOrigin-Name: 8f6ae686019c61a03fe70eb78d2b529b1cf126215b45513a97cfdf7086f82f54
 2022-04-07 12:10:00 +00:00
drh
c381056e6d Fix harmless compiler warnings. 
FossilOrigin-Name: 61095b5bcb5c30d29f03efa5b4809e3a0b780ed57e35227c292aab9dd1cfe3f6
 2022-04-07 10:11:35 +00:00
drh
d44f8b2385 Improved technique for parsing the ON and USING clauses of a join is faster 
and uses less memory.

FossilOrigin-Name: 158156a3e3d50042cafc75dea3aaaa68b1f2efb9c3d178518ea6e68e32e0d21c
 2022-04-07 01:11:13 +00:00
drh
200adc9e75 Faster parsing of the FROM clause in joins for the common case where there 
is no INDEXED BY clause.

FossilOrigin-Name: 848b7a0ea99ddc52091b78313f018c07d00a0e28aa6da8c1cae709c1d03468fe
 2022-04-06 19:46:20 +00:00
drh
c2d0df95ba Improvements to the display of AST for DML statements. 
FossilOrigin-Name: 84c239a071cfaf8af107646f01ef269e2915fd2384e95927d484f2e408ba6bbf
 2022-04-06 18:30:17 +00:00
drh
2a7dcbfbb0 Attempt to show triggers in the TreeView output from DELETE, INSERT, and 
UPDATE statements.

FossilOrigin-Name: b0939d6f4d94b45dce53ace6295508a67d574cc72bd6977623bf77065b3c4e64
 2022-04-06 15:41:53 +00:00
drh
c16a5686fe Corrections and updates to the header comment describing the 
TriggerStep object.  No changes to code.

FossilOrigin-Name: abb34c0830a49d4f4e277ddd17e710529e87cba7061f3546079dbba2f82b020e
 2022-04-06 12:54:41 +00:00
drh
8f1eb6f5e4 Add the sqlite3Show() family of debugging interfaces under SQLITE_DEBUG. 
No changes to deliverable builds.  Rename SQLITE_ENABLE_SELECTTRACE to
SQLITE_ENABLE_TREETRACE in ctime.c.

FossilOrigin-Name: bc33168cf1f48caf848c2dc5c3ae15e4efff8c0378f944eb5398a245139a2b35
 2022-04-06 12:25:04 +00:00
drh
5e431bead8 Rename debugging defines and variables from SELECTTRACE to TREETRACE (and 
similar) since the functionality has how expanded to include data structures
beyond SELECT statements.  Should not affect deliverable builds.

FossilOrigin-Name: 393fa32e188a017f431372b54037cb31e885030542f00d0bfd59da9d9db5c014
 2022-04-06 11:08:38 +00:00
drh
f8ef2dbd7b Add additional tree display routines for DELETE and UPDATE. No changes 
to deliverable code.

FossilOrigin-Name: fbd288ff3d4ea47cd324b5952e7754a465901844f2d950f0860d4488d5b6eb9f
 2022-04-06 10:37:44 +00:00
drh
7d2c1d24b0 Add new diagnostic "sqlite3TreeView" routines for IdList, Upsert, and for 
INSERT statements.  This is all debugging code.  There are no changes to
release builds.

FossilOrigin-Name: f3084122039bcb30c8617f5f432009a49be8b488235850a1f10ef862c91560b2
 2022-04-06 00:29:21 +00:00
drh
ec534e6a23 Small performance and size improvement to OP_Found. 
FossilOrigin-Name: 81587a18b7c0516628453000172a0c58e74ee173c15f655d035799d84d4e2d81
 2022-04-04 20:20:22 +00:00
drh
50f22d17a8 Tag an always-taken branch using ALWAYS(). 
FossilOrigin-Name: ad8bc3d7443ff57ce5a8756428e717ac42ec0295191a9b4d7ae44846d8fa03a2
 2022-04-04 19:58:55 +00:00
drh
b834e0de59 Optimizations to the OP_Found opcode save about 600K cycles in speedtest1. 
FossilOrigin-Name: 5c3357ad62843fe982b9c2d31dbf02018f2948ceab2c85dac917cd9ce1e97dd6
 2022-04-04 19:43:57 +00:00
drh
36d2d09023 Use unpacked keys for OP_Found in foreign key processing. 
FossilOrigin-Name: 328dc76657eb5317f0201859d2b3abe6918103b894f7beaed0aca3058a9f2b64
 2022-04-04 18:17:59 +00:00
drh
0de10ac11c When constructing the JSON Path for the "fullpath" column of the 
json_tree() and json_each() table-valued functions, be sure to quote
object labels where necessary.

FossilOrigin-Name: 0fbbe7881cadf0b3c211653c7a0797e0a90c7c24da78ecc8a27140c05f89f2ed
 2022-04-04 15:15:45 +00:00
drh
b07fb4f1c2 Fix the JSON Path parser so that it will accept zero-length object labels. 
[forum/forumpost/c082aeab43|Forum thread c082aeab43].

FossilOrigin-Name: 84fe95d2a5b4d232d657e3b8110027a698a9bcd597f205cc535cfa97bc299f21
 2022-04-04 14:24:14 +00:00
drh
a81a9f78fd Performance optimization and stronger assert()s in the comparison opcodes. 
FossilOrigin-Name: e0305e640b9078c7eed9ab0bcc14f4515b54e7cd9ade3306bc2d1660f05b2725
 2022-04-04 11:38:49 +00:00
drh
1c8486301f Only invoke sqlite3VdbeClearObject() from a single location, so that the 
compiler is more likely to in-line the code.  Performance increase and
size reduction.

FossilOrigin-Name: c6947a96e61f71aa61ca3d70d9e2612d784ab04d60fa88852b03cfce86b1bf2b
 2022-04-04 01:12:11 +00:00
drh
8703edd3e9 Performance optimization in the sqlite3VdbeHalt() routine. 
FossilOrigin-Name: 9564d72a0820dbcb38f905fcd42ed4c858ea8fb5f648b189ceb65380a14a785b
 2022-04-03 22:35:13 +00:00
drh
8bb93daca0 Performance optimization and size reduction in the OP_Halt opcode. 
FossilOrigin-Name: 21948e6e1ccd2ce128742415d21759604ecb8902226ec4707dbd75585450f208
 2022-04-03 20:39:48 +00:00
drh
18bcfb999a Omit the Vdbe.runOnlyOnce flag (simplifying the prepared statement 
implementation) and accomplish the same result by adding an "OP_Expire 1 1"
opcode to prepared statements that would normally have runOnlyOnce set.

FossilOrigin-Name: 6e20e1c46d17ac6aba21e02b57649af51cfa415d83d0c001b30677d2fd1f1dc1
 2022-04-03 19:13:40 +00:00
drh
8ee75f7c3a Performance optimization and slight size reduction in the OP_Transaction 
opcode.

FossilOrigin-Name: 7bee8c195f3fc27aaab13e493ad446a4f19201de3ac064ed6d8a3cbda7c69ee1
 2022-04-03 10:42:06 +00:00
drh
c2808f39d1 Expand the getVarint32() macro in a few places, as the C-compiler seems to 
be able to optimize better when that macro is expanded manually.

FossilOrigin-Name: cd4fe34b98bf5ce26f3596c717edb73932f3b46ad6e9b4934d06b7b3c176a0d6
 2022-04-02 22:47:47 +00:00
drh
1f416db292 Fix harmless compiler warnings. 
FossilOrigin-Name: 8a3a3486358d076c34e515ac92663a04f0c7ff10f405094cb5b6ada0d5f05cdc
 2022-04-02 20:08:48 +00:00
drh
d13527daed Ensure that a zero-blob does not cause in invocation of memcpy() with a 
zero length and a NULL source pointer.

FossilOrigin-Name: 35441eb5e1447e01f2031837a4ede705bce34f87be27912278cc730abce6cf05
 2022-04-02 19:21:58 +00:00
drh
2c144b0f63 Minor loop optimization in OP_MakeRecord. 
FossilOrigin-Name: 4350983b37879d3280432d90fef04f5cc4be1b3110b5435123d897e31b34db8a
 2022-04-02 15:19:02 +00:00
drh
d859dc2b25 In-line the sqlite3VdbeSerialPut() routine into the OP_MakeRecord opcode. 
This allows some duplicate comparisons to be omitted, resulting in a size
reduction and performance increase.

FossilOrigin-Name: 6f4d6f212a3558c27be6e9dcf71cec43c424d445e5889c6e91dde84a19c5a2c1
 2022-04-02 14:30:58 +00:00
drh
b47b1f67dc The putVarint32() macro does not optimize well. So expand it into in-line 
code in places were performance is an issue.

FossilOrigin-Name: 390c239e53cf936a97b268dce8171f0b17050542ae64735ca8ef375fec2c9544
 2022-04-01 21:01:37 +00:00
drh
759e507ce5 Loop optimization in the OP_MakeRecord opcode. 
FossilOrigin-Name: 47a61fbd63928021098fbe492283f1afda7c293b3b2706c001192ae4ff1b2cbe
 2022-04-01 20:39:40 +00:00
drh
3b8b5be3b7 It is not necessary to de-ephermeralize the output registers in the 
OP_ResultRow opcode.  Omit that step for a size reduction and performance
increase.

FossilOrigin-Name: 8a07745aed1d0a4eead55d43f1923597b12371f307ecf5bc19c5a1db9a107a50
 2022-04-01 20:19:36 +00:00
drh
35e9e350ca There is no need for sqlite3_step() to check for an OOM condition prior 
to starting up.

FossilOrigin-Name: 44be7f46ba89289683ed0e123169ca9adb1018de03071d66de480c910a23d074
 2022-04-01 19:13:39 +00:00
drh
a24832b7b2 Omit the Vdbe.doingRerun field for a slight size reduction and performance gain. 
FossilOrigin-Name: e93297a9d775688e6274c54ba75b19fc1fe8b29b73b9b5e7f94f3f2ca37f045f
 2022-04-01 19:04:13 +00:00
drh
cf6e3fd787 New macro ROUND8P() which works like ROUND8() but assumes that the input is 
already a multiple of the size of a pointer.  It becomes a no-op for
64-bit machines, giving a small size reduction and speed boost.

FossilOrigin-Name: d126f304cde66ebfe21a4967c22dcba0bac27cbce56318b14bd50051e49c978c
 2022-04-01 18:45:11 +00:00
drh
473571b083 Provide and use a version of sqlite3VdbeFreeCursor() that guarantees the 
cursor pointer is not NULL.  This saves a few bytes of code space and a
few CPU cycles.

FossilOrigin-Name: cb5e6f8e265c91221227e5f15b95798c688773262407dd138d414103184702f6
 2022-04-01 18:19:04 +00:00
drh
2fb448f2c8 Remove an unnecessary branch from sqlite3VdbeReset(). 
FossilOrigin-Name: a7d79560a0efd6221ba59ce84bcb4fa94024a901ac4a45e192ddecc6e1b5c78c
 2022-04-01 17:23:17 +00:00
drh
17c4865b83 Refactor the Vdbe.iVdbeMagic field into Vdbe.eVdbeState. Split the RUNNING 
state into separate RUNNING and READY.  This gives a size reduction and
performance increase.

FossilOrigin-Name: 5a50a42fde9477868fad31099f5fe976437825fac44f8b3a4cf6c739c7667bbb
 2022-04-01 17:01:57 +00:00
drh
00946d7953 Avoid a harmless uninitialized variable warning in PRAGMA incremental_vacuum. 
FossilOrigin-Name: 6d976f90dfe4886c3f4c062151af5c5ca7454d34b71172401b8c67acd2d663a0
 2022-04-01 16:22:41 +00:00
drh
659fdb4da8 Have the sqlite3_context object carry the encoding for the prepared statement 
that it represents, so that sqlite3_result() and similar can set the encoding
according to the prepared statement, even if the database encoding has
changed.
dbsqlfuzz c409b10d0a6bccf78ab00f47e1d29d42ee5b3565

FossilOrigin-Name: d4e19314f564126e180e091f9135c7bc55a10442edb46fbd3a4cfad21201dfa6
 2022-04-01 15:31:58 +00:00
drh
99a218282c Split out the RUN state into separate READY and RUN states. 
FossilOrigin-Name: d698826b08b88e227eb83f84b3cdb19f17306b532eccfa162090abccdf3c63d8
 2022-03-31 21:15:09 +00:00
drh
66181ce2b8 Rename Vdbe.iVdbeMagic to eVdbeState. Remove unnecessary states. This is 
a preliminary step toward splitting RUN_STATE out into several other states.

FossilOrigin-Name: ff91191d232305d44ae6c0fbca2542a749422dc716fa1fd5d54f58c7d6052c14
 2022-03-31 20:04:49 +00:00
drh
c4c0ff8664 Fix harmless compiler warnings. 
FossilOrigin-Name: b916087aacba53530d2bd19eef2a4fd7a253bf7fa87b49e0df17f7987d7164ae
 2022-03-31 16:09:13 +00:00
drh
89cf958c00 Refinement to [3f9887d4a58cbfdb]: The SQLITE_CONSTRAINT error should only 
be returned if the prepared statement came from sqlite3_prepare_v2().  The
legacy sqlite3_prepare() is documented to return only SQLITE_ERROR.

FossilOrigin-Name: f2d9262e4427ab37ba26c004fc7a4790c86c1856d695a6b4ec3e72732ea54c09
 2022-03-31 11:12:56 +00:00
drh
7e62146b13 Faster and slightly smaller implementation of sqlite3Step(). 
FossilOrigin-Name: c6901a8c78838228f8135c9346b214e638b72086fd85367b9ff482273e62ece6
 2022-03-30 17:56:27 +00:00
drh
66f58bf38d Small size reduction and performance increase in sqlite3FinishCoding(). 
FossilOrigin-Name: 9248ce50f57fb9c4ba67949fdf9c9567c3e626cd9dd1b41b71c602d29c77c43e
 2022-03-30 17:36:40 +00:00
drh
c55b62d4cb In setResultStrOrError(), if the input string pointer is NULL and hence the 
value gets set to an SQL NULL, then the Mem.enc field is uninitialized.  So
do not read it.  This is a harmless OSSFuzz/ASAN found problem.

FossilOrigin-Name: 47d0b1c4cfc3d2d8f57a02079276bb70a205ffd0f18007dd39c92f813d4c87f5
 2022-03-29 22:57:00 +00:00
drh
4cb32b70ed Ensure that sqlite3VdbeMemSetStr() always leaves the value in a consistent 
state even if there is an error.

FossilOrigin-Name: c86ab289ec31ce9ae0abaf103a829b8d1e5ed632f493456f1f40607aeb91b41c
 2022-03-29 20:50:20 +00:00
drh
555db979f6 Reverse the order of two tests to stop a harmless initialized value 
warning from MSAN - reported by OSSFuzz.

FossilOrigin-Name: 800b8fdad73b67105e416b4b5c6a5c5ded7d6a43b4eacd6b67d690cab7584b0b
 2022-03-29 19:19:23 +00:00