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tcl-init
Commit Graph

2168 Commits

Author SHA1 Message Date
dan
eeee8a5f01 Automatically close ephemeral b-trees when their last cursor is closed. 
FossilOrigin-Name: 39b5af18c0580c8e92516d410f8c465bfec31b2d0be9df1cfd6a1d1a19b4fc14
 2021-03-18 14:31:37 +00:00
dan
918232aadb Allow instruction OP_OpenDup to duplicate cursors created by OP_OpenDup, as well as by OP_OpenEphemeral. 
FossilOrigin-Name: b8de980b2fb78088ef74e053cb987bb84319d13dc96ce1e89baaaa3fe8cf1efc
 2021-03-18 13:42:53 +00:00
drh
e44ac3858c New assert statements associated with Ephemeral cursors in the bytecode engine. 
FossilOrigin-Name: a8ce73e2573b271d5d45838802ed1905ce5e18d5fafe0078700e79fab85457e2
 2021-03-18 13:19:41 +00:00
drh
0db20c490a Fix a bad comment (copy-paste error) in the byte code engine. No code changes. 
FossilOrigin-Name: 1c01745734c7b62a8c792f743aae08dfbb9e047dc92fef8da067fec152b20fd5
 2021-03-09 20:58:21 +00:00
drh
606411bf91 Add an ALWAYS() on a branch that is now unreachable. 
FossilOrigin-Name: ace54c5bd50176db7c60b7e3cf9293a86d9ecf2fea897467044020b9684c0af3
 2021-02-22 14:25:40 +00:00
dan
6a5a13df97 Fix various issues with the changes on this branch. Add test cases for the same. 
FossilOrigin-Name: 10538ec6fc1642dfc2ca6cef06ce6cb9e124847b421ccf01f5842064fad379ab
 2021-02-17 20:08:22 +00:00
drh
17b74817c0 Change the name of Vdbe.magic to Vdbe.iVdbeMagic to disambiguate with 
sqlite3.magic.

FossilOrigin-Name: 6b29e549bb34933bfd0758e31085e65dcc0f75446c478fc775d96cf01c22cf43
 2021-02-03 18:32:25 +00:00
drh
18e5607211 New opcode OP_ChngCntRow used to output the result of PRAGMA change_count. 
Only this new opcode, and not OP_ResultRow, checks for foreign key errors.
Faster performance, and now also works with RETURNING.

FossilOrigin-Name: 154fc2b15465c7c92a1af0a93851421aec42a81bab54840a9701f2c78068e14e
 2021-01-31 15:50:36 +00:00
drh
a8a64a078f Chagne the OP_ResultRow opcode so that it does not cancel 
pending statement transactions.

FossilOrigin-Name: fea91e3a511b14dafcc4da92c59188f927ec60ed91441335183da6b4e7866c1b
 2021-01-30 14:17:18 +00:00
drh
0166df0bda Fix a obsolete assert() in the bytecode engine. Improved OOM detection 
in sqlite3AddReturning().

FossilOrigin-Name: 138b10d54a83e1e7d5b3cdbe593a5073b05e632d1823e1b74d85835435b9ee3d
 2021-01-30 12:07:32 +00:00
drh
e5ceaac446 Add an extra log message in the case of an SQLITE_CORRUPT_INDEX error. 
FossilOrigin-Name: 0571c24177d77ac966bcf42cb8ab00fdf541ce84af1468c8ef0b60c48c45a22f
 2021-01-25 21:24:14 +00:00
mistachkin
d6665c51e2 Fix harmless compiler warnings seen with MSVC. 
FossilOrigin-Name: dc7938d2d715301595dee2fac6880af3716c4b3d1cbe7c3578d7fd30ba146a23
 2021-01-18 19:28:56 +00:00
drh
a06eafc8fc Do not set the P3 parameter on OP_RowCell when copying an index btree, as 
P3 is not used in that case.

FossilOrigin-Name: eef070a4aadf02a845d0ed00767be049d3b76e811e24797a116776fa836d1b03
 2020-12-29 15:06:26 +00:00
dan
d2ffc9721e Fix minor issues with new code on this branch. 
FossilOrigin-Name: f7fa76d0963e7b34026dc20c920bfbf7961033fe2b99503f6857157595f86823
 2020-12-10 19:20:15 +00:00
dan
7aae73588a Better integrate the changes on this branch with OP_Insert and OP_IdxInsert. 
FossilOrigin-Name: 101cef14910d6e865a94bc870aed599321b893188062a9a61d70a9434992cf23
 2020-12-10 18:06:24 +00:00
dan
cd1b2d0b54 Transfer large index or WITHOUT ROWID records between b-trees when vacuuming without loading them into memory. 
FossilOrigin-Name: dfd4ca6891a893d0e9551689954d3e79114d5565f8a5264f96ad1d64fe1d6280
 2020-12-09 20:33:51 +00:00
dan
036e0675e6 Experimental changes to vacuum to avoid loading large records entirely into memory. Currently only works in limited cases only - for rowid tables when the page-size does not change. 
FossilOrigin-Name: c90e063ca9ddcdd1e9f1a2e25a3f7d6e7ee798373ad8acf65b90536b0a124c0d
 2020-12-08 20:19:07 +00:00
drh
5dc18e33ae Use an ephemeral table rather than a RowSet to remember rowids in the 
two-pass UPDATE algorithm, as this uses much less memory for large UPDATEs.

FossilOrigin-Name: 842c432772e6cd8464cdb7bfdb38789adeea9aa9e0486d4034cc9841f085f517
 2020-11-19 19:43:46 +00:00
drh
f56a4bfcd1 Improvements to the mechanism that attempts to report SQLITE_CORRUPT if 
pread() says that the underlying filesystem is corrupt.

FossilOrigin-Name: b887c7504e7edeba758f3c1203c6cc56eef499fe05e7e6c6d82939bf7d78c57f
 2020-11-18 21:50:05 +00:00
drh
32881bebbe Claw back most of the performance lost in the previous commit. 
FossilOrigin-Name: df8ce2675b070fcdc338918e7652a26ffc90439fe399ceac206fadf8a93a681f
 2020-11-17 21:26:13 +00:00
drh
1ca037f41e Fix BEGIN IMMEDIATE and BEGIN EXCLUSIVE so that they work even if one or 
more of the database files in the connection are read-only.  Test cases
for this are in TH3.

FossilOrigin-Name: 2fa08c3963f008d4723c3f4f4496abcb6d4b575c85ba4a911a6aed5730b5948b
 2020-10-12 13:24:00 +00:00
drh
64208b50ce Remove an incorrect assert() from the OP_SeekScan opcode. 
FossilOrigin-Name: c0400f8c0bcb85ba39004feff753eae2f8e82065539e52b5788febd7644c417b
 2020-10-02 12:49:06 +00:00
drh
04e70ce07d For the OP_SeekScan optimization, the OP_IdxGT does not necessarily come 
right after the OP_SeekGE.   So use the P2 operand of OP_SeekScan to point
to the first instruction after OP_IdxGT.  Problem found by dbsqlfuzz.

FossilOrigin-Name: 091d71939411bf2079098f09ddc0525f11f380119fd27114e2b3eec9a8ac0db4
 2020-10-02 11:55:07 +00:00
drh
deaa61072d Fix the OP_SeekScan opcode so that its variable names do not cause problems 
for the test/vdbe-compress.tcl script.

FossilOrigin-Name: 7a78274a072324b94d6f79e5b7a198b2fa9321ff5d6a528b51f57d3ee95c765b
 2020-10-01 15:46:21 +00:00
drh
f287d00108 In the OP_SeekScan opcode, changes to pOp must occur after the call 
to VdbeBranchTaken() so that the VdbeBranchTaken() attributes the branch
to the correct opcode.

FossilOrigin-Name: 61fbe7aa7cc0e8fe3e6b1c5aec277183d8cd7c86b1e835c38e0b37a9b8063343
 2020-09-30 00:10:22 +00:00
drh
a54e1b1fc8 The OP_SeekScan opcode is a no-op if the cursor is not pointing to a valid 
row upon entry.

FossilOrigin-Name: 4afc96b5fe80bd192a23e0230edc207e641931c3bf48296b1a385c786386f1b7
 2020-09-29 23:52:25 +00:00
drh
0b2949c36e Coverage testing of the OP_SeekScan opcode. Fix a problem that comes up when 
OP_SeekScan reaches the end of the table.

FossilOrigin-Name: 9e57e758a6a33f54d28a546b4eebfb5cfacef30dc4e0207e43bb9d2c06fc3439
 2020-09-29 20:22:19 +00:00
drh
dfbaae7572 Improved comments on the new OP_SeekScan opcode. 
FossilOrigin-Name: 6110fdd5bb7b4ae5c065404c802ae726362ef084966b73cffe58c4bfb98689d2
 2020-09-29 17:29:11 +00:00
drh
c40076a8cf Improved performance by manually in-lining the sqlite3VdbeIdxKeyCompare() 
routine for the OP_IdxGT opcode and its kin.

FossilOrigin-Name: 2206a2c848a122ee220c89427f9be0460cba0706f58852139d7b37184ce29a29
 2020-09-29 16:05:09 +00:00
drh
f761d937c2 The OP_SeekScan opcode works, but using it requires disabling the 
IN-earlyout optimization because the OP_IfNoHope opcode might move the
cursor.

FossilOrigin-Name: f3c36b840c9a29c0add28039db216f4207a308e5057fc76e3f0004024a8267ac
 2020-09-29 01:48:46 +00:00
drh
68cf0ace3d Revisiting the IN-scan optimization to try to fix it for the corner case 
where the statistics deceive the query planner into using a scan when
an indexed lookup would be better.  This check-in changes the code
generation to do the IN-scan using a new OP_SeekScan opcode.  That new
opcode is designed to abandon the scan and fall back to a seek if
it doesn't find a match quickly enough.  For this work-in-progress check-in, 
OP_SeekScan is still a no-op and OP_SeekGE still ends up doing all the work.

FossilOrigin-Name: d720b6981eeb0ffdb14494ca63eca298ee724ae4ad4863c7c7cbfdad7fa52519
 2020-09-28 19:51:54 +00:00
drh
fa17e134b2 Improvements to the IN-early-out optimization so that it works more 
efficiently when there are two or more indexed IN clauses on a single table.

FossilOrigin-Name: 35505c68c1945c35babd2496e02bc4907a15c8e7b8d77f05f230bd0e9d4891d7
 2020-09-01 01:52:03 +00:00
drh
c51ceeb049 Fix the documentation for the OP_IdxGT family of opcodes to show that the 
P5 operand is not used.

FossilOrigin-Name: 62f7d2a61259f296ffdcb3b3ee1a13925c4563ac8ed669f8a8a63fc7bc3a0a37
 2020-08-31 12:29:03 +00:00
drh
99744fa4ab Add support for the sqlite3_txn_state() interface. 
FossilOrigin-Name: ad195e3dd89d0f33b50070c18fb8f43c4eb24162515dfdd7c04d9e7d96b902a2
 2020-08-25 19:09:07 +00:00
drh
08b9208660 Fix harmless compiler warnings that surface in newer versions of GCC. 
FossilOrigin-Name: 9d670a318381f219b467653f5f9539097808b887ae37291ce13be462dedfb18d
 2020-08-10 14:18:00 +00:00
mistachkin
cec5f1d127 Fix compilation issues with MSVC. 
FossilOrigin-Name: af07d8458ae5e2933134b706f80f9538f011970221904bf9f50ed6e47d306e14
 2020-08-04 16:11:37 +00:00
drh
8deae5ade3 Fix signed/unsigned compiler warnings. 
FossilOrigin-Name: 1d69eee8b085d514f442840346f001b4785f8ec64f5ba66943e9577b26e2e29c
 2020-07-29 12:23:20 +00:00
drh
3b3ddbae36 When parsing the schema, detect out-of-bounds rootpage values and throw an 
error.

FossilOrigin-Name: 6c3a2727dc912ed800146e07db5d15d0f3468d13701165ba763c4b114c3e18e8
 2020-07-22 18:03:56 +00:00
drh
abc3815860 Continuing work toward supporting unsigned 32-bit page numbers. 
FossilOrigin-Name: 9ce1710aad43cebe5ad50859c7685fb83e40cdd4a60913bd2b7e659bc59942fd
 2020-07-22 13:38:04 +00:00
drh
9c673a29bd Fix a comment typo. No changes to code. 
FossilOrigin-Name: 610ee8d5dc855fd163daa3c93b44db7874463d69df5a01ab4113b725a031b9d4
 2020-07-09 14:05:47 +00:00
drh
d1d89140c0 Increase the resolution of the vdbe opcode counters to 64 bits, as 
apparently some users run single prepared statements that go for
longer than 4 billion instructions.  See forum post 
"[https://sqlite.org/forum/forumpost/d07949dc94|Possible freeze in the progress loop]"

FossilOrigin-Name: 612eb590ea44fd402e630f2d62558beb7ce57d7d0ba113c8b72ea60a895c5a43
 2020-07-06 12:13:05 +00:00
drh
e3863b5176 Ensure that the "PRAGMA schema_version" command causes the schema to be 
reparsed and reloaded.

FossilOrigin-Name: 27d4a9a7b530c77a5b2593d1a5232b10746da9906f8d12890de7a8fbd7270256
 2020-07-01 16:19:14 +00:00
drh
da36933eb4 Document the dual-use of the P5 operand to the OP_MakeRecord opcode. 
FossilOrigin-Name: a73f80f22a585d1a2f55650d5cda4ece6c4ef039ef5eae2c02c3e5c269d4c30a
 2020-06-29 20:09:04 +00:00
drh
067b92ba00 Extend the refactoring into extensions. Clean up stray newlines. 
FossilOrigin-Name: 7a876209a678a34c198b54ceef9e3c041f128a14dc73357f6a57cadadaa6cf7b
 2020-06-19 15:24:12 +00:00
drh
1e32bed3c1 Further refactoring of the schema table name. 
FossilOrigin-Name: 9536fa0ae0c1ae6e2e98d2fa11e5acda7f3c9b8ca5061b6f7f8cae63a11d936b
 2020-06-19 13:33:53 +00:00
drh
346a70ca1e Provide "sqlite_schema" as an alternative name to the table that holds the 
database schema.

FossilOrigin-Name: 61782a7ae3c25cf59d7a676cb295eb024d17c46e532ae78c6fe871a91d712fa9
 2020-06-15 20:27:35 +00:00
drh
86d2de2571 Check-in [1d4f86201dab9a22] changed a testcase() to an assert() because we 
didn't know how to reach that condition any more.  But YongHeng's fuzzer
found a way.  So now we change it back.  Ticket [9fb26d37cefaba40].

FossilOrigin-Name: 90b1169d1b200d35a3f9f0ad2ae35a1b336bdd9b1ad0494ba80a382354c8d8b8
 2020-06-14 13:40:13 +00:00
drh
a5f3fb3015 Fix for ticket [810dc8038872e212]. Thank to user "Maxulite" for tracking 
down the problem!

FossilOrigin-Name: 89af93d77fa7959a4ee7364bae6c02c40963a3cdf80b0a4a8af9c9764d5c7bb5
 2020-06-03 19:28:10 +00:00
drh
56f1873d10 Simplification to the interrupt handling logic in sqlite3VdbeExec() saves 
a few bytes of code space.

FossilOrigin-Name: 43e0e59bd4e34c6e88c004ea951c0d76ff1cf0a034389f490495a5d12e239382
 2020-06-03 15:59:22 +00:00
drh
85bd353ac2 Earlier detection of index corruption caused by missing index entries. 
FossilOrigin-Name: f339f31f9e9a856b576f99c5230fdf6d60fdc2873e48cb5aa0a4ab1d04e3c930
 2020-05-05 18:42:49 +00:00