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git.ipfire.org Git - thirdparty/sqlite.git/log
drh [Wed, 2 Aug 2023 13:29:01 +0000 (13:29 +0000)]
Remove a condition from query flattening that is now taken care of by
the caller. Factor out the reverse_unordered_selects processing from the
main loop of sqlite3WhereBegin() for performance.
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drh [Wed, 2 Aug 2023 12:39:56 +0000 (12:39 +0000)]
Simplify the select.c logic that enforces the optimization fence around
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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drh [Wed, 2 Aug 2023 11:06:27 +0000 (11:06 +0000)]
Never flatten a CTE that is labeled MATERIALIZED. This is really something
of a bug fix because the documentation says that a MATERIALIZED CTE is an
optimization barrier.
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drh [Wed, 2 Aug 2023 00:09:15 +0000 (00:09 +0000)]
When a query is inside an AS MATERIALIZED CTE, do not attempt the
omit-ORDER-BY optimization. If the developer specifies MATERIALIZED,
that means he wants the sort to actually happen.
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drh [Tue, 1 Aug 2023 19:10:30 +0000 (19:10 +0000)]
Avoid ASAN warnings when converting over-sized long double values into double.
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stephan [Tue, 1 Aug 2023 16:41:12 +0000 (16:41 +0000)]
Filter the wasmfs-specific JS module result type check out of non-wasmfs builds.
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stephan [Tue, 1 Aug 2023 16:38:08 +0000 (16:38 +0000)]
Fix part 2 of 2 for /fiddle: a make deps problem which caused fiddle to load but fail to run when sqlite3.c was missing.
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stephan [Tue, 1 Aug 2023 16:17:00 +0000 (16:17 +0000)]
Fix part 1 of 2 for /fiddle not running: build flags which were renamed during refactoring.
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dan [Tue, 1 Aug 2023 11:03:06 +0000 (11:03 +0000)]
Fix an assert() in fts5_index.c that might fail when dealing with corrupt records.
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drh [Tue, 1 Aug 2023 01:07:45 +0000 (01:07 +0000)]
drh [Tue, 1 Aug 2023 00:34:03 +0000 (00:34 +0000)]
Restore part of the UPDATE one-pass optimization that was removed by
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 ].
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drh [Mon, 31 Jul 2023 22:03:24 +0000 (22:03 +0000)]
Restrict the new column cache to table-btree, which is the common case anyhow.
That way, writes to indexes do not need to clear the column cache.
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drh [Mon, 31 Jul 2023 20:02:11 +0000 (20:02 +0000)]
The original column-cache implementation from check-in [
ab1edcc7fedcf279 ]
(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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drh [Mon, 31 Jul 2023 17:39:36 +0000 (17:39 +0000)]
Add bit to sqlite3_test_control(SQLITE_TESTCTRL_OPTIMIZATIONS) that will
disable the one-pass optimizating in DELETE and UPDATE.
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drh [Mon, 31 Jul 2023 17:20:12 +0000 (17:20 +0000)]
Improved debug tracking of the Parse.nQueryLoop value.
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stephan [Sun, 30 Jul 2023 03:54:10 +0000 (03:54 +0000)]
Add tests for SAHPoolUtil.exportFile() and importDb().
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drh [Sat, 29 Jul 2023 22:58:47 +0000 (22:58 +0000)]
Do not try to add MEM_Term to an MEM_Static string either.
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drh [Sat, 29 Jul 2023 21:22:26 +0000 (21:22 +0000)]
Do not try to apply MEM_Term to a MEM_Ephem strings.
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dan [Sat, 29 Jul 2023 20:13:19 +0000 (20:13 +0000)]
Fix a buffer overread in the fts5_structure virtual table (test code).
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drh [Sat, 29 Jul 2023 17:05:35 +0000 (17:05 +0000)]
Simplification to the sqlite3_stmt_explain() implementation.
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stephan [Sat, 29 Jul 2023 15:53:53 +0000 (15:53 +0000)]
SAHPoolUtil.importDb() now accepts either a byte array or ArrayBuffer.
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drh [Sat, 29 Jul 2023 15:31:48 +0000 (15:31 +0000)]
Enhancements to the new sqlite3_stmt_explain() interface implementation and
documentation.
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larrybr [Fri, 28 Jul 2023 21:38:50 +0000 (21:38 +0000)]
Fix doc error noted in [forum:/forumpost/
11fc7308d5e607f2 |the forum] and a misspelling.
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drh [Fri, 28 Jul 2023 20:59:25 +0000 (20:59 +0000)]
Do not allow the same JSON parse to be input to both arguments to the
json_patch() routine.
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drh [Fri, 28 Jul 2023 18:37:13 +0000 (18:37 +0000)]
drh [Fri, 28 Jul 2023 16:12:39 +0000 (16:12 +0000)]
Minor tweaks to the JSON performance measurement documentation.
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drh [Fri, 28 Jul 2023 14:20:31 +0000 (14:20 +0000)]
Enhancements to the JSON performance testing scripts and instructions to
cover the recent optimizations involving updates to large JSON strings
that indexed.
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drh [Fri, 28 Jul 2023 13:52:08 +0000 (13:52 +0000)]
JSON performance improvements: (1) Add a cache for large string values
on OP_Column to avoid having to extract the string multiple times.
(2) Internal JSON caching improvements.
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stephan [Fri, 28 Jul 2023 11:52:58 +0000 (11:52 +0000)]
Correct a recently-introduced falsehood in ext/wasm/README.md regarding ssh port forwarding.
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drh [Fri, 28 Jul 2023 11:30:07 +0000 (11:30 +0000)]
drh [Fri, 28 Jul 2023 00:54:38 +0000 (00:54 +0000)]
Remove some unnecessary and incorrect code that was mistakenly added in the
previous check-in.
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drh [Thu, 27 Jul 2023 23:51:36 +0000 (23:51 +0000)]
Switch to using jsonParseCached() for json_patch().
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drh [Thu, 27 Jul 2023 20:28:29 +0000 (20:28 +0000)]
If the input JSON to a json function that uses cache comes from an RCStr
value, then use that RCStr value in the parse rather than making a copy.
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dan [Thu, 27 Jul 2023 20:08:44 +0000 (20:08 +0000)]
Fix a couple of compiler warnings in fts5_index.c.
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drh [Thu, 27 Jul 2023 19:39:53 +0000 (19:39 +0000)]
The OP_Column opcode caches large column values coming from overflow pages.
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dan [Thu, 27 Jul 2023 19:13:35 +0000 (19:13 +0000)]
Add the contentless_delete=1 option to fts5. For creating contentless tables that support DELETE and REPLACE statements.
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drh [Thu, 27 Jul 2023 18:19:46 +0000 (18:19 +0000)]
Merge trunk enhancements into the json-opt branch.
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stephan [Thu, 27 Jul 2023 17:50:10 +0000 (17:50 +0000)]
Dynamically determine whether the wasm.xWrap() argc check can be applied, depending on how the wasm environment exposes its exports.
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stephan [Thu, 27 Jul 2023 01:38:19 +0000 (01:38 +0000)]
Accommodate a breaking change in emcc 3.1.44.
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drh [Thu, 27 Jul 2023 00:21:59 +0000 (00:21 +0000)]
Fix a performance regression in JSON associated with generating small
snippets of JSON from a larger JSON string.
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drh [Wed, 26 Jul 2023 23:22:32 +0000 (23:22 +0000)]
Reduce the number of memory allocations when parsing JSON.
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drh [Wed, 26 Jul 2023 21:53:09 +0000 (21:53 +0000)]
Minor changes to make coverage testing easier.
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drh [Wed, 26 Jul 2023 19:22:43 +0000 (19:22 +0000)]
Change a switch() case to default for coverage.
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drh [Wed, 26 Jul 2023 19:11:47 +0000 (19:11 +0000)]
Make sure jsonReplaceNode() always leaves the JsonParse in a consistent state even if an error is encountered.
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dan [Wed, 26 Jul 2023 17:51:05 +0000 (17:51 +0000)]
Add the ".scanstats vm" command to the shell tool. For profiling VM code in SQLITE_ENABLE_STMT_SCANSTATUS builds.
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dan [Wed, 26 Jul 2023 16:41:23 +0000 (16:41 +0000)]
Improve the output when ".scanstats vm" is enabled.
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drh [Wed, 26 Jul 2023 14:18:06 +0000 (14:18 +0000)]
drh [Wed, 26 Jul 2023 13:17:43 +0000 (13:17 +0000)]
Change the debugging "json_parse(X)" function so that it shows a more
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.
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drh [Wed, 26 Jul 2023 11:53:14 +0000 (11:53 +0000)]
More comment improvements in json.c. Do not run jsonLookup() following
an OOM error.
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drh [Wed, 26 Jul 2023 11:43:39 +0000 (11:43 +0000)]
Improved comments and other cleanup for the changes on this branch.
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stephan [Wed, 26 Jul 2023 11:41:41 +0000 (11:41 +0000)]
Remove the batch SQL runner from the JS build's 'all' target, as it's long-since unused and adds noticable build time. Add makefile comments about JSPI.
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stephan [Wed, 26 Jul 2023 11:11:39 +0000 (11:11 +0000)]
Add SAHPoolUtil.getFileNames() method, and tests for it, per [forum:
a3da1e34d8 |forum feedback]. Add a test to demonstrate that two SAH pools can coexist so long as they have different names.
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drh [Wed, 26 Jul 2023 11:00:47 +0000 (11:00 +0000)]
Fix jsonForceRCStr() to also add the NULL terminator.
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stephan [Wed, 26 Jul 2023 07:57:55 +0000 (07:57 +0000)]
Reformulate [
907dfc4a7aa1 ] using awk instead of sed for better cross-platform portability.
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drh [Wed, 26 Jul 2023 01:15:34 +0000 (01:15 +0000)]
Merge the latest trunk fixes into the json-opt branch.
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drh [Wed, 26 Jul 2023 01:12:08 +0000 (01:12 +0000)]
Add the concept of an RCStr string - a "Reference Counted String". Use
these to keep track of big JSON strings that might need to be used in
multiple places at the same time with different lifetimes. Add two
different JSON string values to each parse - one with and one without
changes. The net result is a large reduction in the number of parses
that occur when doing an UPDATE of a indexed JSON field using
json_replace() or similar.
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drh [Wed, 26 Jul 2023 01:05:08 +0000 (01:05 +0000)]
Extend the enhancement to json_set() and json_replace(). Clean up cruft.
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drh [Wed, 26 Jul 2023 00:48:45 +0000 (00:48 +0000)]
Add the JsonParse.zAlt field to old revised JSON text after a change.
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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drh [Tue, 25 Jul 2023 20:26:47 +0000 (20:26 +0000)]
Clarify ownership of the various objects involved in parsing JSON.
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drh [Tue, 25 Jul 2023 18:28:03 +0000 (18:28 +0000)]
Incremental improvements to JSON parsing - trying to fold in the RCStr object.
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dan [Tue, 25 Jul 2023 17:54:25 +0000 (17:54 +0000)]
Fix a harmless "set-but-not-used" compiler warning in sqlite3session.c.
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dan [Tue, 25 Jul 2023 17:11:29 +0000 (17:11 +0000)]
dan [Tue, 25 Jul 2023 16:48:54 +0000 (16:48 +0000)]
dan [Tue, 25 Jul 2023 15:48:58 +0000 (15:48 +0000)]
Change the name of the fts5 'delete-automerge' option to 'deletemerge'. And add tests for it.
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drh [Tue, 25 Jul 2023 15:43:01 +0000 (15:43 +0000)]
Fix a minor problem with error reporting in JSON.
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drh [Tue, 25 Jul 2023 15:08:18 +0000 (15:08 +0000)]
Create the new RCStr class of strings and try to use them for JSON storage.
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dan [Tue, 25 Jul 2023 13:53:42 +0000 (13:53 +0000)]
stephan [Tue, 25 Jul 2023 12:26:05 +0000 (12:26 +0000)]
Reformulate a (sed -i) construct in ext/wasm/GNUmakefile to account for Mac's sed -i being different than GNU's.
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drh [Mon, 24 Jul 2023 23:27:05 +0000 (23:27 +0000)]
It is an error to try to insert a BLOB value into JSON.
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drh [Mon, 24 Jul 2023 22:45:59 +0000 (22:45 +0000)]
drh [Mon, 24 Jul 2023 22:34:26 +0000 (22:34 +0000)]
Rework the JSON parse structure to facilitate better caching. Passes all
tests.
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dan [Mon, 24 Jul 2023 19:13:06 +0000 (19:13 +0000)]
Add the fts5 'delete-automerge' integer option. A level is eligible for auto-merging if it has a greater than or equal percentage of its entries deleted by tombstones than the 'delete-automerge' option. Default value is 10.
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drh [Mon, 24 Jul 2023 17:59:25 +0000 (17:59 +0000)]
Incremental progress toward improved caching of parsed JSON.
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stephan [Mon, 24 Jul 2023 15:41:58 +0000 (15:41 +0000)]
Resolve an ES6 module export construct which is incompatible with node.js, as reported in [forum:
b9680fa9ad |forum post
b9680fa9ad ].
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drh [Mon, 24 Jul 2023 12:37:23 +0000 (12:37 +0000)]
Merge the latest trunk enhancements into the json-opt branch.
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stephan [Sun, 23 Jul 2023 22:14:41 +0000 (22:14 +0000)]
When writing the filename header in a opfs-sahpool file, ensure that all remaining bytes in that part of the header are zeroed out to avoid the downstream problems reported in [forum:
d50ec48a293988a5 |forum post
d50ec48a293988a5 ].
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stephan [Sat, 22 Jul 2023 19:57:42 +0000 (19:57 +0000)]
Add the opfs-sahpool sqlite3_vfs implementation to JS, offering an alternative to the other OPFS VFS (with tradeoffs).
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dan [Sat, 22 Jul 2023 19:47:46 +0000 (19:47 +0000)]
Integrate contentless delete with auto-merge.
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drh [Sat, 22 Jul 2023 16:37:28 +0000 (16:37 +0000)]
Do not read past the end of a text buffer looking for a zero terminator, as
that space might not be initialized. If the buffer is owned, just set the
null terminator. This is a better fix for the OSSFuzz-detected
use-of-initialized-value problem.
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drh [Sat, 22 Jul 2023 15:21:41 +0000 (15:21 +0000)]
Fix a harmless use-of-initialized-value warning from OSSFuzz that results
from recent large string optmizations.
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drh [Fri, 21 Jul 2023 22:28:34 +0000 (22:28 +0000)]
Performance enhancements for queries using very large string values.
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drh [Fri, 21 Jul 2023 22:22:13 +0000 (22:22 +0000)]
dan [Fri, 21 Jul 2023 21:10:33 +0000 (21:10 +0000)]
Fix fts5 incremental optimization so that it too can handle an index that consists of a single segment with one or more tombstone hash pages.
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dan [Fri, 21 Jul 2023 19:33:35 +0000 (19:33 +0000)]
Ensure the fts5 'optimize' command correctly rewrites any index that consists of a single segment and one or more tombstone hash pages.
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drh [Fri, 21 Jul 2023 19:17:26 +0000 (19:17 +0000)]
Fix harmless compiler warning introduced by the previous check-in.
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drh [Fri, 21 Jul 2023 18:38:59 +0000 (18:38 +0000)]
Avoid a potentially large strlen() in sqlite3DecOrHexToI64().
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drh [Fri, 21 Jul 2023 18:09:07 +0000 (18:09 +0000)]
Further improvements to large string handling in relation to JSON.
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drh [Fri, 21 Jul 2023 15:07:56 +0000 (15:07 +0000)]
Fix harmless compiler warning about signed/unsigned comparison.
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drh [Fri, 21 Jul 2023 15:01:53 +0000 (15:01 +0000)]
Multiple optimizations that try to preserve or infer the zero-terminated
property of TEXT values. Avoid unnecessary copying of text values destined
to become function parameters. All changes help improve performance of
doing UPDATEs on large JSON values that are indexed multiple ways.
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drh [Fri, 21 Jul 2023 11:09:53 +0000 (11:09 +0000)]
More infrastructure changes towards improving JSON cache performance.
Incremental check-in.
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stephan [Fri, 21 Jul 2023 10:51:35 +0000 (10:51 +0000)]
Minor internal cleanups in the opfs-sahpool VFS.
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stephan [Fri, 21 Jul 2023 09:10:42 +0000 (09:10 +0000)]
Internal cleanups in the async part of the JS library bootstrap phase.
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stephan [Thu, 20 Jul 2023 23:25:32 +0000 (23:25 +0000)]
dan [Thu, 20 Jul 2023 20:29:56 +0000 (20:29 +0000)]
Fix some divide-by-zero errors that could occur when handling corrupt tombstone hash records.
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dan [Thu, 20 Jul 2023 20:09:26 +0000 (20:09 +0000)]
Avoid an infinite loop that could be entered when dealing with corrupt fts5 tombstone hash pages.
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drh [Thu, 20 Jul 2023 17:45:09 +0000 (17:45 +0000)]
Experimental framework upon which to build a better JSON parse structure that
supports cached of modified JSON. All of these changes are tentative and
subject to change or removal. Incremental check-in.
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dan [Thu, 20 Jul 2023 16:07:04 +0000 (16:07 +0000)]
Add tests and fixes for the new code on this branch.
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stephan [Thu, 20 Jul 2023 09:06:42 +0000 (09:06 +0000)]
Filter the OPFS VFSes out of the sqlite3-node.mjs build. Add another level of subdirectory to the sahpool to later enable transparent support of client-provided files under the VFS's root dir. Rework the awkward sahpool-via-oo1 mapping.
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drh [Wed, 19 Jul 2023 23:02:45 +0000 (23:02 +0000)]
Performance enhancements to the JSON parser and code generator.
FossilOrigin-Name:
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drh [Wed, 19 Jul 2023 20:23:34 +0000 (20:23 +0000)]
Revise the new JSON parser performance test to make the test run 25 times
longer, and thus provide a more repeatable number.
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