066b667313
Prevent internal-use-only SQL functions from being used inside of a CHECK
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constraint added using ALTER TABLE ADD CONSTRAINT.
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2026-05-11 14:47:45 +00:00
6d27844bbe
Merge trunk performance enhancements and fixes into the direct-printf branch.
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2026-03-29 19:23:47 +00:00
03f13d77a5
Avoid using unsigned 64-bit integer division on platforms that do not support
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it in hardware.
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2026-03-29 19:06:36 +00:00
eb0cb3f53b
In sqlite3_str_vappendf(), write floating-point renderings directly into
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the output buffer, saving a memcpy().
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2026-03-28 20:24:47 +00:00
eac7cd634d
Use the UINT64_C() macro rather than the LLU suffix on integer literals
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for portability to older Microsoft compilers.
[forum:/forumpost/0a9ffaff6fcdedb3|Forum thread 0a9ffaff6fcdedb3].
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2026-03-07 22:37:28 +00:00
7a125b97d7
Fix the build for -DSQLITE_OMIT_FLOATING_POINT.
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2026-03-05 18:28:43 +00:00
9d65290207
Rename SQLITE_ENABLE_MULTITHREADED_CHECKS to SQLITE_THREAD_MISUSE_WARNINGS.
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Run test cases with that option. Also add the
SQLITE_THREAD_MISUSE_ABORT option.
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2026-02-24 19:37:16 +00:00
8642ca2025
New sqlite3_db_config(SQLITE_DBCONFIG_FP_DIGITS) that let's the application
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specify the number of significant digits that double→text conversions
will attempt to preserve.
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2026-02-21 19:26:58 +00:00
ac5ee556eb
Inconsequential changes to floating-point conversion, amounting to mere
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code cleanup to aid comprehension.
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2026-02-20 20:43:25 +00:00
5c977eaa0a
Refactor the sqlite3AtoF() routine so that it requires a zero-terminated
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UTF-8 input. When the need arises to convert UTF16 or non-terminated
strings, wrapper functions are used. Together, this makes the code slightly
smaller and faster.
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2026-02-16 16:56:59 +00:00
7b93f1a387
Fix a problem with identifying ON clauses attached to RIGHT or FULL JOINs (which is an error) if the join appeared in a flattened sub-query.
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2026-02-16 11:59:14 +00:00
c47bc0ffca
Performance improvement in floating-point conversions.
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2026-02-16 11:14:59 +00:00
4bee65dcb9
Another minor performance refinement.
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2026-02-14 20:48:58 +00:00
23e57bc7cd
Use only a single bit, rather than a whole byte, to store infrequently
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accessed boolean values in the Parse object.
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2026-02-13 12:20:57 +00:00
450a90097f
Do a better job of not generating unnecessary Bloom filters associated
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with IN operators.
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2026-02-05 21:14:34 +00:00
3212ab33d4
Refactor the implementation of this enhancement to keep all the code inside
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the query planner, not leaking out into SQL function implementations.
Expand the enhancement to cover MATCH and REGEXP operators and overloads
of LIKE and GLOB.
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2026-02-03 14:00:28 +00:00
49c70b88bc
When reducing the truth probability of a LIKE/GLOB constraint, only consider
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non-wildcard characters in the pattern.
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2026-02-02 20:54:28 +00:00
5c8cd31246
An experimental query-planner change that reduces the estimated number
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of output rows for FROM clause terms that are restricted by a LIKE or
GLOB operator, based on the number of bytes in the pattern. The idea is
that longer patterns will match fewer records and hence should reduce the
estimated output count. The implementation is not workable as it stands
now. This is just a crazy idea, saved for future reference.
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2026-02-01 00:37:04 +00:00
33db5b73e5
The Select.addrOpenEphm field is no longer needed. Remove it and
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simplify related code.
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2026-01-25 20:15:00 +00:00
46a395ff3d
Additional simplifications to achieve 100% MC/DC.
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2026-01-25 13:26:19 +00:00
1f567aef4c
Remove code that is no longer used.
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2026-01-23 16:07:51 +00:00
ec13fcecd2
Minor fixes. Tests are passing now.
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2026-01-20 15:07:28 +00:00
5ef150c223
Merge all the latest trunk enhancements and fixes into the temp-trigger-refs
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branch.
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2025-12-04 11:20:01 +00:00
1e235b9b02
Create a new internal subroutine specifically designed to allocate
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Expr nodes that hold a 32-bit integer.
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2025-12-03 16:54:48 +00:00
928276043b
Merge latest trunk changes into this branch.
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2025-12-01 17:22:35 +00:00
57b61bf78f
Improved comments in code. Omit unneeded wrapper functions.
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2025-11-19 15:25:18 +00:00
ec047587e3
Merge the latest trunk changes into the alter-table-constraints branch.
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2025-11-18 19:36:45 +00:00
074b753bca
Merge the latest trunk enhancements into the temp-trigger-refs branch.
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2025-11-18 19:34:11 +00:00
fef2233090
Add the SQLITE_LIMIT_PARSER_DEPTH value for sqlite3_limit(). This isn't
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something that many applications will need, but it is useful for testing.
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2025-11-18 14:48:33 +00:00
39d132db5b
Merge latest trunk changes with this branch.
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2025-11-07 19:23:06 +00:00
11b6fc93f6
Experimental change to allow triggers in the temp schema to use fully qualified table names in INSERT/UPDATE/DELETE statements.
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FossilOrigin-Name: 48e168007ceb1bdc54cf21a8e959a8e0f9ccdc478827db7a7a0518fc7a226401
2025-10-29 20:57:44 +00:00
acdda1075d
Enhance the tokenizer so that it is able to deal with individual tokens
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larger than 2GiB.
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2025-10-24 13:18:31 +00:00
898ac77f55
Merge all the latest trunk enhancements into the dbstatus-spill branch.
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2025-10-14 11:18:45 +00:00
80f0fcd31d
Fix harmless compiler warnings.
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2025-10-10 14:31:46 +00:00
cdaff852bf
Were we to choose to integrate the carray() table-valued function into the
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amalgamation, that integration might look something like this.
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2025-10-08 15:32:55 +00:00
c49ff175ef
Merge the latest trunk enhancements into the dbstatus-spill branch
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2025-09-29 18:48:00 +00:00
32c49bd6e6
Fix authorization callbacks for the new commands on this branch.
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FossilOrigin-Name: 0165e2afa8b640c9d7a31414f06144e089844dc13691f06f363a50d14fec62bc
2025-09-27 16:13:56 +00:00
ba1ee803ee
Add experimental implementations of ALTER TABLE commands to add and drop CHECK and NOT NULL constraints.
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2025-09-27 14:59:21 +00:00
92f93556e5
On-demand loading of JSON virtual tables.
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2025-09-26 10:29:07 +00:00
6ba22a75f3
Revise [a4430d262b3e129d] to preserve legacy behavior of the imposter
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test-control. The control argument must be 2 now to get read-only behavior.
The control argument of 1 goes back to the prior read/write behavior.
FossilOrigin-Name: 3e7ede2e6dc9ac8e746dafe0ecb5379044631e753e951f9ab97ec84addbd830a
2025-09-22 17:28:08 +00:00
49a37f333a
Improvements to imposter tables: (1) They are read-only unless writable-schema
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is enabled. (2) Because they are now read-only, the ".imposter" command
in the CLI no longer requires the --unsafe-testing command-line option.
(3) Imposter tables do not participate in a PRAGMA integrity_check and hence
do not cause false-positive errors. However, you can still do an
integrity_check on the the imposter table itself by naming the imposter
table as the argument to integrity_check.
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2025-09-19 17:24:12 +00:00
16eedfbdda
Initial implementation of SQLITE_DBSTATUS_SPILL. Does not yet take into
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account sorters or transient tables.
FossilOrigin-Name: 4e63ee20f80e486ecc4aa4523afa43f994c267e638f8f084f0d6df369aa74a1d
2025-09-18 14:51:23 +00:00
4bace197e1
Fix the cases in joinI.test on this branch.
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2025-08-23 16:26:36 +00:00
fbb07ff67f
Remember if a SELECT statement contains an ON clause. If it does, then after
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name resolution, scan the WHERE clause to verify that the ON clause does not
reference tables to its right.
FossilOrigin-Name: 0ec8a8f64434f8cc04f02a356ecaa409ebd886566ba09c32f0fff8ebd103a609
2025-08-22 19:17:44 +00:00
74cc109780
Ensure that the accumulator for an aggregate always gets initialized,
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even when the aggregate is on the right side of a LEFT JOIN and never
gets evaluated. This fixes a problem introduced by [663f5dd32d9db832]
and found by dbsqlfuzz. Test cases in TH3.
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2025-07-18 12:10:15 +00:00
f8addcf937
Fix harmless compiler warnings in builds that use SQLITE_OMIT_DATETIME_FUNCS.
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2025-07-14 09:41:59 +00:00
44a03671c4
Merge the latest trunk enhancements and fixes into the empty-table-optimizations branch.
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2025-07-07 18:35:51 +00:00
4aacd1ef8e
Back out the fix at [ba7d5bad32ad6aac] because it does not always work and because
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it causes a performance regression. Add new test cases for row-value lookups of
indexes that contain redundant columns, three of which are currently failing. This
branch is seeking an improved solution to the redundant index column problem for
row-value lookups.
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2025-07-07 10:54:00 +00:00
aa54d7a0ca
Merge in the exists-to-join optimization that has been modified
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to relax the requirement of having an indexed join constraint.
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2025-07-02 20:46:02 +00:00
c52e9d97d4
Raise an error right away if the number of aggregate terms in a query
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exceeds the maximum number of columns.
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2025-06-27 19:02:21 +00:00
drh