80c438613a
Minor cleanups in sqlite3Int.h. By reordering some fields in the Parse
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object, it packs more tightly and uses less memory and less CPU to
initialize.
FossilOrigin-Name: aa6de539c09faa320b68c63659e602107145c4263fa680d5b40fe4d7d7ac4534
2023-08-08 17:36:03 +00:00
be3ab76bfb
Changes so that sqlite3_vtab_nochange() works with "UPDATE ... FROM...". Use this to allow UPDATE on a contentless fts5 table if new values are supplied for all indexed columns.
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FossilOrigin-Name: 16cd2161e312cf97129011fc829079db8f762b822b2f4fabf7ff6742c071302f
2023-08-07 16:15:56 +00:00
47c5db7f77
Tiny doc typo fixes from [forum:31eb707250|forum post 31eb707250]. No code changes.
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2023-08-05 19:15:19 +00:00
b87278f414
Fix a bug in the jsonLookup() routine used to search JSON. Bug was
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introduced by the recent (unreleased) JSON caching enhancements
check-in [a4c1af616e672a0d] merged into trunk at [df099ad713011b67].
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2023-08-04 13:19:11 +00:00
1050f1d2a1
Fix harmless scan-build warnings.
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FossilOrigin-Name: 65a8716d8a1b7c5cffe9cdd25e4cbfa6528fcb146ff0fe67b0ce771b0537473d
2023-08-03 18:14:09 +00:00
86d77fd95d
Fix build problems associated with SQLITE_OMIT_WSD and SQLITE_OMIT_TRIGGER.
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FossilOrigin-Name: de031a5ec863b11f0216d1a114740c8cf4572adb034a5d35ff1a5c07d81df800
2023-08-03 13:30:00 +00:00
9b1334b7d3
Unix builds now assume the presence of nanosleep() in the standard library.
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The -DHAVE_NANOSLEEP=0 compile-time option can be used to build on systems
(if any still exist) where this is not the case.
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2023-08-03 12:41:30 +00:00
c874d60353
Performance optimization for JSON rendering logic.
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2023-08-02 16:06:02 +00:00
d3229ce23e
Remove an unreachable branch in the ascii-to-floating-point conversion that
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was added by [e989a37ff9d5b52e].
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2023-08-02 13:45:16 +00:00
26cf4af5d7
Remove a condition from query flattening that is now taken care of by
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the caller. Factor out the reverse_unordered_selects processing from the
main loop of sqlite3WhereBegin() for performance.
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2023-08-02 13:29:01 +00:00
aa250db66a
Simplify the select.c logic that enforces the optimization fence around
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a MATERIALIZED common table expression. Do not allow the
reverse_unordered_selects setting to affect a fenced CTE that itself has
an ORDER BY clause.
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2023-08-02 12:39:56 +00:00
5e82c06cf8
Never flatten a CTE that is labeled MATERIALIZED. This is really something
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of a bug fix because the documentation says that a MATERIALIZED CTE is an
optimization barrier.
FossilOrigin-Name: b7ef9796f548ce43e06673f86bbec68157aae5e4ee8451e1d87ee5f70af1bb27
2023-08-02 11:06:27 +00:00
4178849736
When a query is inside an AS MATERIALIZED CTE, do not attempt the
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omit-ORDER-BY optimization. If the developer specifies MATERIALIZED,
that means he wants the sort to actually happen.
FossilOrigin-Name: aa769ee7477171f26a091cadff98aa4f48da7752ade20b405a95c4525456f62e
2023-08-02 00:09:15 +00:00
cbaef88980
Avoid ASAN warnings when converting over-sized long double values into double.
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FossilOrigin-Name: e989a37ff9d5b52e0090d59be077ad2260c8df5d4c2c2d8088b1160de64dffd4
2023-08-01 19:10:30 +00:00
b9894f88b8
Remove redundant comparison operator.
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FossilOrigin-Name: 018984329892c243b21adb10aa8efc7f49313ecf80477e6b61dc6365f62c489d
2023-08-01 01:07:45 +00:00
d192b4441d
Restore part of the UPDATE one-pass optimization that was removed by
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check-in [2c56b984a0bd3be5]: only disable one-pass if the WHERE clause
contains a subquery. Allow subqueries in the SET expressions.
Fix for performance problem reported by
[forum:/forumpost/8ab195fd44e75ed0|forum post 8ab195fd44e75ed0].
FossilOrigin-Name: 42916af9fc0f379a608a08db894400bd735a28e26ab1ffd604d1fddfbdb3ec0c
2023-08-01 00:34:03 +00:00
00d635dda4
Restrict the new column cache to table-btree, which is the common case anyhow.
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That way, writes to indexes do not need to clear the column cache.
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2023-07-31 22:03:24 +00:00
98ab970bac
The original column-cache implementation from check-in [ab1edcc7fedcf279]
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(merged to trunk at [771fe35074b50b8d]) is unsound. This check-in fixes
the issue. Had to give back a little performance, the optimization is still
a overall win.
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2023-07-31 20:02:11 +00:00
1f097a2f29
Add bit to sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS) that will
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disable the one-pass optimizating in DELETE and UPDATE.
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2023-07-31 17:39:36 +00:00
c8c6763782
Improved debug tracking of the Parse.nQueryLoop value.
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FossilOrigin-Name: 4a8a17498ecaccca5e5aab65d4596cbca9799547f50683237d08c1fa3556f1cf
2023-07-31 17:20:12 +00:00
b47e1c7866
Do not try to add MEM_Term to an MEM_Static string either.
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FossilOrigin-Name: 8920dcef1f75f578e3f274ab2b980a83d6ea6b761d99fc48410b26886170597b
2023-07-29 22:58:47 +00:00
e809d84618
Do not try to apply MEM_Term to a MEM_Ephem strings.
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2023-07-29 21:22:26 +00:00
fb546c0bf4
Simplification to the sqlite3_stmt_explain() implementation.
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2023-07-29 17:05:35 +00:00
0c6b869263
Enhancements to the new sqlite3_stmt_explain() interface implementation and
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documentation.
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2023-07-29 15:31:48 +00:00
104e225074
Fix doc error noted in [forum:/forumpost/11fc7308d5e607f2|the forum] and a misspelling.
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FossilOrigin-Name: 6b79cc7dd07d41da6034386b39c0dff32f80a977db42a9602330ffd15706ab9b
2023-07-28 21:38:50 +00:00
3e053c50b4
Do not allow the same JSON parse to be input to both arguments to the
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json_patch() routine.
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2023-07-28 20:59:25 +00:00
58b5921ca4
Add the sqlite3_stmt_explain() API.
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2023-07-28 18:37:13 +00:00
b1926192fa
Mark an unreachable branch as ALWAYS().
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2023-07-28 11:30:07 +00:00
93269a9e41
Remove some unnecessary and incorrect code that was mistakenly added in the
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previous check-in.
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2023-07-28 00:54:38 +00:00
caf7e26c4f
Switch to using jsonParseCached() for json_patch().
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FossilOrigin-Name: 2ed9c59e6a51037e63485d0a92dae25443116beddfca1ac73d2f5d5be38d4ad3
2023-07-27 23:51:36 +00:00
6bc4baf313
If the input JSON to a json function that uses cache comes from an RCStr
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value, then use that RCStr value in the parse rather than making a copy.
FossilOrigin-Name: 509ae9c1470dd79d320e84371e1e6662fb85fa0571df5ed8c4d946d10cdfe821
2023-07-27 20:28:29 +00:00
594f5e24c4
The OP_Column opcode caches large column values coming from overflow pages.
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FossilOrigin-Name: ab1edcc7fedcf27922d5db4bc1bc673b1495ca9c66eb6debdda7b7776c068888
2023-07-27 19:39:53 +00:00
93853a4846
Fix a performance regression in JSON associated with generating small
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snippets of JSON from a larger JSON string.
FossilOrigin-Name: 837f2907e10b026f6db1ca2d44b4bf60a6f069bf534bf369ad9b5c513cb0c6e4
2023-07-27 00:21:59 +00:00
e94e132994
Reduce the number of memory allocations when parsing JSON.
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FossilOrigin-Name: 9edd67162113df57dae21d4683f9495611e2cf4717c6d12f5b7b8e44156d5fe3
2023-07-26 23:22:32 +00:00
f7a164f345
Minor changes to make coverage testing easier.
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FossilOrigin-Name: ec8b43382e5402e15d9f2dda3cf21ac8be8c1589ddbe6c9433c33eef0036f764
2023-07-26 21:53:09 +00:00
3f3dc2f5d8
Change a switch() case to default for coverage.
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FossilOrigin-Name: 04f497074b9210326030f36107a43d6490a2a59c8a574e2c5429cd9bde681bf7
2023-07-26 19:22:43 +00:00
beb3fb6904
Make sure jsonReplaceNode() always leaves the JsonParse in a consistent state even if an error is encountered.
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FossilOrigin-Name: 01d52232dd6fbd253e77419a17df3df83d49434792d288ef96e14739a89cef3b
2023-07-26 19:11:47 +00:00
5028dd89ab
Add the ".scanstats vm" command to the shell tool. For profiling VM code in SQLITE_ENABLE_STMT_SCANSTATUS builds.
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FossilOrigin-Name: 0cbec3990d4101142bfb831f8e6527b73baabebbd30fa7f59275b217dbce6a8d
2023-07-26 17:51:05 +00:00
a1016b4275
Improve the output when ".scanstats vm" is enabled.
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FossilOrigin-Name: 7df08fd35e9d4bc471aa9fbc4c81d2ebcfd2be6c4c38143342b3d9d727c9df22
2023-07-26 16:41:23 +00:00
7286c59896
Change the debugging "json_parse(X)" function so that it shows a more
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complete description of the JsonParse object on standard output and returns
the mimified JSON. Former behavior was to return the text of a decode
of the aNode array.
FossilOrigin-Name: 1bf85d4e388714a88f8940dcdec353c3e0267456697eff6963d34637912aecc9
2023-07-26 13:17:43 +00:00
2b57197066
More comment improvements in json.c. Do not run jsonLookup() following
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an OOM error.
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2023-07-26 11:53:14 +00:00
7725370ff4
Improved comments and other cleanup for the changes on this branch.
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FossilOrigin-Name: bac953a80d1a541e7a12aef00c86c002133859237143ad670b39ea19799a8900
2023-07-26 11:43:39 +00:00
9a184daad3
Fix jsonForceRCStr() to also add the NULL terminator.
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FossilOrigin-Name: 134b01f37f8f741d7f7b7eda81384695d1cbe4c39751d87f08832d5c9afdcef2
2023-07-26 11:00:47 +00:00
44f53b9647
Extend the enhancement to json_set() and json_replace(). Clean up cruft.
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FossilOrigin-Name: 2dbb22c75e86f2e3ced38ac14b4943570d5c2f86cd5e37e875bf0c863be28836
2023-07-26 01:05:08 +00:00
0f200bc580
Add the JsonParse.zAlt field to old revised JSON text after a change.
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Demonstrate that this elminates the need for reparsing after a change
by using it in the json_remove() function. This is an incremental check-in
containing lots of cruft.
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2023-07-26 00:48:45 +00:00
59b8e666f6
Clarify ownership of the various objects involved in parsing JSON.
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FossilOrigin-Name: afe02a398a16d51bd7482b6fbe2fbd15d9ac4fd9cdbc9d2bf81f38b3391fc567
2023-07-25 20:26:47 +00:00
440e696d5e
Incremental improvements to JSON parsing - trying to fold in the RCStr object.
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FossilOrigin-Name: 4cb15d934a85ebc290fe6dd8cd3bd47b159561ca75d72bbffef30b9ea4623b09
2023-07-25 18:28:03 +00:00
4bca124845
Fix a minor problem with error reporting in JSON.
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FossilOrigin-Name: c456e4a8999066cd96246327101b3cca78294511a71a2ac07939bb702bfcb5f4
2023-07-25 15:43:01 +00:00
f02cc9a324
Create the new RCStr class of strings and try to use them for JSON storage.
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FossilOrigin-Name: c1b8725089bb3d006ec69add28f4fcb3f4e79412c7f438b5b1067c2227e77b9c
2023-07-25 15:08:18 +00:00
b715fe9d80
It is an error to try to insert a BLOB value into JSON.
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FossilOrigin-Name: 28c6e964b1e2257527df02b352f02e135f7c4b764b8b41eda6461f9538f5d042
2023-07-24 23:27:05 +00:00
drh