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Commit Graph

2101 Commits

Author SHA1 Message Date
drh
b0b7db91b8 Prototype implementation for the VACUUM INTO command.
FossilOrigin-Name: 036e3320a4af36c1311b25b2e504b0079c8b33df8ad7b7e5fddad07150e6f87d
2018-12-07 17:28:28 +00:00
drh
fc08a1aef8 Remove the unused pColHash field from the Table object.
FossilOrigin-Name: 3a2c047989facc3461c63a2f9eed412014c951035a80da47c52a70139fb552de
2018-12-06 02:01:17 +00:00
drh
253a6af532 The sqlite3_normalized_sql() interface should not be transforming quoted
identifier names into wildcards.  Fix this, and at the same time simplify
the code substantially.

FossilOrigin-Name: e8540377ec66fa5f9ae3c93bedb5c094057698199c37fc211f7ea95429e815e4
2018-12-05 23:45:46 +00:00
drh
19efd0db41 Simplifications to the sqlite3_normalized_sql() implementation.
FossilOrigin-Name: 94ea6379178e3ff6a0d1d5819ca4ac558bdadb1ca8a3637c797079db7dc0cd61
2018-12-05 17:48:57 +00:00
drh
707821ff72 Enhance the sqlite3_normalize_sql() interface so that it works even if the
prepared statement was not initially compiled using
SQLITE_PREPARE_NORMALIZED.  Enhance the ".trace" command in the CLI so that
it is able to access the full scope of functionality provided by 
sqlite3_trace_v2() and in particular so that it is able to show normalized
SQL output using the newly enhanced sqlite3_normalize_sql() interface.

FossilOrigin-Name: 7da617e97eb905cb009c47403786682b911e32a630f266e1c53ea72836fc88b5
2018-12-05 13:39:06 +00:00
drh
04c6747a80 Performance improvement in sqlite3_step() by creating a new mTrace flag
for the legacy xProfile pointer that is set by sqlite3_profile().

FossilOrigin-Name: e28584e8bc7b7405380064b60523fa6191f827f74075f6d117eb7732d752ba5e
2018-12-04 14:33:02 +00:00
drh
eea8eb6d04 Do not allow direct access to internal-use SQL functions such as
sqlite_rename_column() and sqlite3_rename_table() except when the
new SQLITE_TESTCTRL_INTERNAL_FUNCTIONS flag is set.

FossilOrigin-Name: 6e1330545e7b74fe5f1f20751a3425e2788441485fc07fcb7626e448c72027ce
2018-11-26 18:09:15 +00:00
drh
1ca9a8b9df Merge fixes from trunk.
FossilOrigin-Name: bf88efcec40036e0805940ff6371643dbc518442457d2bc18c711753607ae36c
2018-11-10 03:47:40 +00:00
drh
145d0a35d9 In the treeview.c module, break out the display of SrcList into a separate
subroutine, so that it can be invoked while debugging.

FossilOrigin-Name: 8c74065f0031274d9bc711d5d53c39aefcfb2b2679811105974a2c7c7a9e1dcb
2018-11-08 22:53:06 +00:00
drh
fc25721c9e Only allow shadow table to be written from within a recursive SQL call.
Omit the SQLITE_PREPARE_SHADOW flag.  Some tests are failing because the
tests depend on being able to write to shadow tables.

FossilOrigin-Name: d890c6582524677666e6f5b5817331dec332ade16b2f744cbb8a3c7dd9b63e21
2018-11-06 14:03:07 +00:00
drh
5a65470300 Add enforcement of read-only on shadow tables. This does not currently work
since some virtual tables are attempting to update shadow tables using
sqlite3_exec().

FossilOrigin-Name: f79b47c9859de597d5924870752dd7cab89c8f0608e5cceb2281f6ffb2e91930
2018-11-06 13:37:20 +00:00
drh
84c501bac1 Initial code to make shadow tables read-only to ordinary SQL. The now
xShadowName method is added to the sqlite3_module object and is used
to identify potential shadow tables.  The SQLITE_PREPARE_SHADOW argument
to sqlite3_prepare_v3() is defined.  It is designed to permit writing to
shadow tables, but is currently an unused placeholder.

FossilOrigin-Name: 31942b3dd3f66eb0d9977bf1cadc2f2d7be7967cce2b55784be0b939dfef1985
2018-11-05 23:01:45 +00:00
drh
0f1c2eb5f2 Correct the internal logic for SQLITE_DBCONFIG_DEFENSIVE.
FossilOrigin-Name: 76094345821246c887a31a234b339d03a78eddbb9fab33b06c3c20797c038349
2018-11-03 17:31:48 +00:00
drh
a296cda016 Add the SQLITE_DBCONFIG_DEFENSIVE flag.
FossilOrigin-Name: af3f29d49359af2291b1d9e06e0db76fd000fbd24b4ac84d2668a0d1322efd83
2018-11-03 16:09:59 +00:00
drh
7301e77402 Deploy the sqlite3Strlen30NN() function (argument guaranteed to be non-NULL) for
a small performance improvement.

FossilOrigin-Name: 4a6ad5190b62020d97a7de02c801544f20b7b98145ceff14af1f2834d3057f9c
2018-10-31 20:52:00 +00:00
drh
a60c63013e Add support for the SQLITE_PREPARE_NORMALIZED flag and the
sqlite3_normalized_sql() when compiling with SQLITE_ENABLE_NORMALIZE.
Also remove unnecessary whitespace from Makefiles.

FossilOrigin-Name: 790ea39a6585ea9f4dad9e132e1fb0447ac1558f728196580d2c3edee84823f7
2018-10-31 19:01:13 +00:00
drh
fd748c6460 Split the SQLITE_WriteSchema flag in two flags, WriteSchema and
SQLITE_NoSchemaError.  Set only WriteSchema on a VACUUM to avoid problems
when trying to vacuum a corrupt database.  With this change, the size
of the flags field on sqlite3 must grow from 32 to 64 bytes.

FossilOrigin-Name: 4f9878107a54356b7105fa1db7655ee239685d570436f6ad4d4221c9bd829b3d
2018-10-30 16:25:35 +00:00
mistachkin
8bee11a41e Add the sqlite3_normalized_sql() API.
FossilOrigin-Name: 592b66e8058dd03a056a036e2606247c9efdb06d15eebe9bcc455f7f55e30ae6
2018-10-29 17:53:23 +00:00
drh
09d00b2f4f Ensure that the OP_VColumn opcode does set sqlite3_vtab_nochange() unless
the OPFLAG_NOCHNG bit is set in P5.  Fix for ticket
[69d642332d25aa3b7315a6d385]

FossilOrigin-Name: 322ab1fc613f616e9f07dc94ef74a29572a21cc476d88e97b4ce865500a47b62
2018-09-27 20:20:01 +00:00
drh
42eb070729 Add the "PRAGMA legacy_alter_table=ON" command to enable the pre-3.25.0
behavior of ALTER TABLE that does not modify the bodies of triggers or
views or the WHERE clause of a partial index.  Enable the legacy behavior
by default when running the xRename method of virtual tables.

FossilOrigin-Name: 7edd26ed27ed1e7eab603058f7d55f2eac45e7bd1908bfa5f32293611883b157
2018-09-20 20:15:02 +00:00
drh
eda079cd2c Combine the Expr.pTab and Expr.pWin fields into a union named "y". Add a new
EP_WinFunc property that is only true if Expr.y.pWin is a valid pointer.
This reduces the size of the Expr object by 8 bytes, reduces the overall
amount of code, and shaves over 1 million cycles off of the speed test.

FossilOrigin-Name: ad130bb86e74e6ce165fdbdce3a19699510f0e62071c1c7923b5a4538d888c7c
2018-09-20 19:02:15 +00:00
dan
674b894269 Add a PRAGMA that restores the legacy ALTER TABLE RENAME TO behaviour.
FossilOrigin-Name: 5acad2e92c11c209bedc6ac8a709595e8070eed028ffc82af61499e5ceaa5e2b
2018-09-20 08:28:01 +00:00
drh
e9816d82a7 Optimization: when doing an UPDATE on a table with indexes on an expression,
do not update the expression indexes if they do not refer to any of the
columns of the table being updated.

FossilOrigin-Name: a71b101635ed28a4c99734dabb20bd65ef1018c1d63ac143b7321cdb0fafa5d7
2018-09-15 21:38:48 +00:00
dan
e8ab40d219 Fix an invalid pointer comparison triggered by renaming a table column when
there are views with explicit column names in the schema.

FossilOrigin-Name: 572de7e4e33562c72cd90790b267ba389370f21ddcaebc4db609fd76ae9b7ada
2018-09-12 08:51:48 +00:00
drh
6ee5a7b481 Fix multiple issues with the ORDER BY LIMIT optimization. This is the
proposed resolution to ticket [9936b2fa443fec03ff25].

FossilOrigin-Name: 206720129ed2fa8875a286266d05b99fb2caf8671e4b74b26a6286a2073fcd8b
2018-09-08 20:09:46 +00:00
dan
905f981667 Fix a problem causing SQLITE_OMIT_VIRTUALTABLE builds to fail.
FossilOrigin-Name: 18beabc848d0ed7f5c918cbec5372a49915d889d7ffc9f475e6b208407e9ebd2
2018-09-06 16:47:08 +00:00
dan
8900a48b92 Avoid comparing pointer values after the object that they point to has been
deleted.

FossilOrigin-Name: 2ec7e50cbc0e7a4308d51be3c9416229b187a6a8abdd982c154edc256cd6da1f
2018-09-05 14:36:05 +00:00
drh
c840b428fc Merge fixes and enhancements from trunk.
FossilOrigin-Name: 589186c083ff3af8d5a6d5ad34e1cefea57806ebf3831ea3bf5a48ef1e173140
2018-09-01 15:49:13 +00:00
dan
c9461ecc28 Extend RENAME TABLE to edit triggers and views. Still buggy.
FossilOrigin-Name: 01308bae3acf33f78b5bb90892085eab340df093aafc17e6ccf6a7d6cf324897
2018-08-29 21:00:16 +00:00
drh
9d67afc421 Also free up the MEM_RowSet bit in the Mem.flags field and have RowSet objects
be destroyed using Mem.xDel.  This change results in faster code.

FossilOrigin-Name: f48e9feb3fca514e4e586932e6d19a5e34a384204effeba553006dcddf5f13d2
2018-08-29 20:24:03 +00:00
mistachkin
88edc6c72a Set SQLITE_PTRSIZE to 4 when compiling with xlc on 32-bit AIX.
FossilOrigin-Name: d158e5b12eec5b81d54c8f5902a972795423947a21d0212b6cceb2810aa6cc5c
2018-08-24 19:04:08 +00:00
drh
ba3a4072b4 Automatically detect when compiling for AArch64 on windows and set
SQLITE_BYTEORDER to little-endian to avoid compile-time testing.

FossilOrigin-Name: ef6729be85ed106212ed23a024d83b85b709207cf287436c0603a21c659f36ad
2018-08-23 18:56:33 +00:00
dan
07e9523364 Rename internal function sqlite3RenameToken() to sqlite3RenameTokenMap() and
sqlite3MoveRenameToken() to sqlite3RenameTokenRemap().

FossilOrigin-Name: b9ae9a0a188b82d7066f6ef7d21592889df0a61559e9a0e01819e9d5a92c3f36
2018-08-21 16:32:53 +00:00
dan
d145e5f46f Minor changes to function tokenExpr() in order to claw back cycles lost to the
rename-column change.

FossilOrigin-Name: 479976955ecb27c3e77a280187eaf23722178549e072b34f3183354a27a4e5c3
2018-08-21 08:29:48 +00:00
drh
38d9964a73 Additional fixes for harmless compiler warnings that are specific to this
branch.

FossilOrigin-Name: 9d8e73bf71e996b810959ffc0e60de69b5e8ca3301df52f9c35d5e9075921798
2018-08-18 18:27:18 +00:00
dan
5be60c55e8 (no comment)
FossilOrigin-Name: e272dc2b1c0edab59a40f32c77c81a3e636937280524161eff5669cb0046ad84
2018-08-15 20:28:39 +00:00
dan
987db767d2 Have ALTER TABLE RENAME edit column references in CREATE VIEW statements.
FossilOrigin-Name: db829dc1a2d7afa49798a2fd32d1f070185b23e513416e65d8144fda24f23b50
2018-08-14 20:18:50 +00:00
dan
5496d6a25a Edit the WHEN and UPDATE OF clauses of trigger programs as part of ALTER TABLE
RENAME COLUMN.

FossilOrigin-Name: 5fdb6b0aafba727139e1937ef5950e4434a77f95a10fc46f8010ca2de3922326
2018-08-13 17:14:26 +00:00
drh
4a2c747c4c Fix legacy comments on Token. Begin commenting the new ALTER TABLE RENAME
COLUMN code.  Fix a memory leak in the sqlite_rename_column() SQL function.

FossilOrigin-Name: 32edc8920376aabb84ebe1900eaa9512d23f1b44d6459e4916dc6b07db66e27c
2018-08-13 15:09:48 +00:00
dan
e325ffed04 Reload the entire schema after renaming a column in order to ensure that the
schema for any tables for which parent key definitions were changed are
reloaded.

FossilOrigin-Name: f4497b0136e9fcb1121a834c86f84eeaf8f1e7d3157d409484e086bcef3487f1
2018-08-11 13:40:20 +00:00
dan
cf8f289542 Experimental implementation of ALTER TABLE ... RENAME COLUMN. Still buggy.
FossilOrigin-Name: fa0fc01eb48a864f0a3d43f9b805d5ed2e530846ee0c34fcbc2eabd9e5696277
2018-08-09 20:47:01 +00:00
drh
36a5d88dde Fix comments that were made obsolete by the removal of the column cache.
FossilOrigin-Name: 2041231d56c7b02b785015ef4d1af260d61326eab1b2a304c17faa3e33f76441
2018-08-04 17:15:56 +00:00
drh
c6ed275fcb Remove more column-cache residue: The OP_SetColTab and OP_VerifyColTab
opcodes and the associated SQLITE_DEBUG_COLUMNCACHE logic.

FossilOrigin-Name: 80236e81cefdf3d3cda3dbdb6de1575c38e4e248cc4b72ca9ee96d3aa0464bfd
2018-08-04 16:54:53 +00:00
drh
8c60719132 Further logic simplifications that flow out of the omission of the column cache.
FossilOrigin-Name: 7d9072b027cc28dd8ecf5e2686d821017997445c15124eebe2839984622af4db
2018-08-04 15:53:55 +00:00
drh
38ee2d9197 Remove additional traces of the column cache.
FossilOrigin-Name: db6052e9725368736abd19f14f97376582d35d07f543046d39991d767ed29851
2018-08-04 14:30:21 +00:00
drh
02ceed058a Completely remove the column cache logic, which has been a persistent source
of bugs for many years.  We recent enhancements to the performance of the
OP_Column opcode, the removing the column cache actually makes speed-check.sh
run faster.  It also saves about 1,800 bytes of code space.

FossilOrigin-Name: 3f5f60cd7529330209027fdae8129cca420cec1050eae50a7750d0b715b56972
2018-08-03 23:04:16 +00:00
drh
954733b386 Improvements to the parser to increase coverage. Fix the parser so that
at least one expresssion is required after PARTITION BY and within the
list of expressions on VALUES().

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2018-07-27 23:33:16 +00:00
drh
efad2e2366 Constant propagation is now restricted to just the WHERE clause. The
mechanism is changed to take affinity and collation into account.  This
seems to give correct answers.  But the search for constant propagation
costs 4 million cycles in the speed test.

FossilOrigin-Name: 82c67efb723dba387964f690cd459b420e59e3367d9589016597a76531596391
2018-07-27 16:57:11 +00:00
drh
660ee55663 Initial implementation of the WHERE-clause constant propagation optimization.
FossilOrigin-Name: 2fb82ad8ebb6434438c0d235b1239444fb08c8711cea2c5a9ed955fedd0acdec
2018-07-26 21:16:53 +00:00
drh
ba968dbfe7 Do not abort running queries due to a CREATE INDEX statement. Allow them
to run to completion before being reprepared.  Fix for ticket
[c694113e50321afdf9].

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2018-07-24 22:02:12 +00:00