Merge the latest trunk enhancements into the begin-concurrent branch.

FossilOrigin-Name: 81bde19bb9bb0be9eddb5c4c564a1a6ee3f612b41ff5289466f09ae1d62e9206

diff --cc Makefile.msc
Simple merge

diff --cc main.mk
Simple merge

diff --cc manifest
index 4a015e1346378d5d14af2d1c577ea701e5068fd5,ea0c2eff2dbdde7efe5569de18a343fadd425c9c..2126c4bd31a20ebb1c63af26ebbbbf67bf84853c
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,12 -1,12 +1,12 @@@
 -C Avoid\san\sobscure\srace\scondition\sbetween\sa\scheckpointer\sand\sa\swriter\swrapping\saround\sto\sthe\sstart\sof\sthe\swal\sfile.
 -D 2026-03-03T19:43:19.771
 +C Merge\sthe\slatest\strunk\senhancements\sinto\sthe\sbegin-concurrent\sbranch.
- D 2026-02-17T16:16:27.325
++D 2026-03-03T23:01:51.385
  F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md 6bc480fc673fb4acbc4094e77edb326267dd460162d7723c7f30bee2d3d9e97d
  F Makefile.in 3ce07126d7e87c7464301482e161fdae6a51d0a2aa06b200b8f0000ef4d6163b
  F Makefile.linux-generic bd3e3cacd369821a6241d4ea1967395c962dfe3057e38cb0a435cee0e8b789d0
- F Makefile.msc f82970bc7f87ec1c9413c6970aeab00a4573cbf0772b474f105a8c288945c069
 -F Makefile.msc 174764cb7e80c80f9003c46b3e388d74c68c8c40230208904b3af8fcabee5f4e
++F Makefile.msc a2ac3b5f596feb5c5122e05a49ce4c0d840cddb25dbd32b3f7c3a836292fe867
  F README.md 3fa51fc7ababc32edd175ae8b2986c86d5ea120c1cb1e57c7f7849492d1405ec
  F VERSION 74672bfd4c7826c0fc6f84762488a707c52e7d2d94af42ccb0edcc6c74311c41
  F art/icon-243x273.gif 9750b734f82fdb3dc43127753d5e6fbf3b62c9f4e136c2fbf573b2f57ea87af5
@@@ -581,12 -569,10 +572,12 @@@ F ext/session/sessionrowid.test 85187c2
  F ext/session/sessionsize.test 8fcf4685993c3dbaa46a24183940ab9f5aa9ed0d23e5fb63bfffbdb56134b795
  F ext/session/sessionstat1.test 5e718d5888c0c49bbb33a7a4f816366db85f59f6a4f97544a806421b85dc2dec
  F ext/session/sessionwor.test 6fd9a2256442cebde5b2284936ae9e0d54bde692d0f5fd009ecef8511f4cf3fc
 -F ext/session/sqlite3session.c 6ebd02be470f36d41c4bd78927f39d507b62051ba025eacaed9936c769902a07
 -F ext/session/sqlite3session.h 7404723606074fcb2afdc6b72c206072cdb2b7d8ba097ca1559174a80bc26f7a
 -F ext/session/test_session.c 190110e3bd9463717248dec1272b44fe9943e57b7646d0b4200dcf11e4dccee6
 +F ext/session/sqlite3changebatch.c d5553b79e012ee2cb06c0a96bdf9dfe19e66354390ea0036cc46c4953142d517
 +F ext/session/sqlite3changebatch.h e72016998c9a22d439ddfd547b69e1ebac810c24
 +F ext/session/sqlite3session.c 757fee3d5ae0f212cde93caa777822c2c35fe54289a6aa3a47f717970419848f
 +F ext/session/sqlite3session.h 17b285102e4c71266f98c7ccf28050f1f13a1970c12c4bb9a2397cf28f4ecd26
 +F ext/session/test_session.c 74b1cb1d31234c5c904ab1de9fa33eed1896672205ab3247ce5511a6a3041358
- F ext/wasm/GNUmakefile a2698072853b67c39e92ca19835c65fbaa8b8884078a99c4e54b72b9ede8306e
+ F ext/wasm/GNUmakefile 79236447d750609aa6beda30feec1314180c5462a493ad94214122887232bfd4
  F ext/wasm/README-dist.txt f01081a850ce38a56706af6b481e3a7878e24e42b314cfcd4b129f0f8427066a
  F ext/wasm/README.md 2e87804e12c98f1d194b7a06162a88441d33bb443efcfe00dc6565a780d2f259
  F ext/wasm/SQLTester/GNUmakefile e0794f676d55819951bbfae45cc5e8d7818dc460492dc317ce7f0d2eca15caff
@@@ -665,7 -651,7 +656,7 @@@ F ext/wasm/tests/opfs/sahpool/index.htm
  F ext/wasm/tests/opfs/sahpool/sahpool-pausing.js f264925cfc82155de38cecb3d204c36e0f6991460fff0cb7c15079454679a4e2
  F ext/wasm/tests/opfs/sahpool/sahpool-worker.js bd25a43fc2ab2d1bafd8f2854ad3943ef673f7c3be03e95ecf1612ff6e8e2a61
  F magic.txt 5ade0bc977aa135e79e3faaea894d5671b26107cc91e70783aa7dc83f22f3ba0
- F main.mk 1667380b5d45b5fa87b340a960f8982837f58b100a429b10b4a3551b9eeedcab
 -F main.mk e1a03e9206f6a042a9147035915cb944e9242d570779bc3ccd7ed6a39df10cae
++F main.mk 2b092d898968b81dd7865c329a95442ab65da093e78bc52d671096f63a221ba4
  F make.bat a136fd0b1c93e89854a86d5f4edcf0386d211e5d5ec2434480f6eea436c7420c
  F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
  F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
@@@ -697,7 -683,7 +688,7 @@@ F src/delete.c 901499bed747c3b4b2be45be
  F src/expr.c 8c3b23cb35f43c2d0570c1058b9a269e561e769e09c81ba192992c95022c1939
  F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
  F src/fkey.c fb0f74c57d19a2d3f113f3476826919d68feda7ff334abfdb479a9a6353b9fcd
- F src/func.c 01b8a2761c8866ab0b6d5fee81eef165fab4da71b77ac9b26b27bf8cf1926f56
 -F src/func.c 6e7de3551ae0f8205006e5109f025223246edd20186d54d90746dee7c1c5c093
++F src/func.c f546ec9edbaf1e4bf9a152bddf1b09c11949beece5d2d96c61184c46d169107b
  F src/global.c a19e4b1ca1335f560e9560e590fc13081e21f670643367f99cb9e8f9dc7d615b
  F src/hash.c 03c8c0f4be9e8bcb6de65aa26d34a61d48a9430747084a69f9469fbb00ea52ca
  F src/hash.h 46b92795a95bfefb210f52f0c316e9d7cdbcdd7e7fcfb0d8be796d3a5767cddf
@@@ -707,7 -693,7 +698,7 @@@ F src/insert.c dfd311b0ac2d4f6359e62013
  F src/json.c 8b6341a419150b28530cc21e3951b2238c35cdc312f11b2ca29017fe4b1dedc0
  F src/legacy.c d7874bc885906868cd51e6c2156698f2754f02d9eee1bae2d687323c3ca8e5aa
  F src/loadext.c 56a542244fbefc739a2ef57fac007c16b2aefdb4377f584e9547db2ce3e071f9
- F src/main.c 46518a0ff7d4e5183db5fe113e8415c9e1b78acfde635b0959c208cba7d4d9c5
 -F src/main.c 31a13302193fbd51279c7e69cdfa0320d0de7629f9151e0964c1d320e8bdd7a4
++F src/main.c d01035411e123a8d32b5cc3b6930cbe9de6de53e1c448b6837107ae770af6589
  F src/malloc.c 422f7e0498e1c9ef967f06283b6f2c0b16db6b905d8e06f6dbc8baaa3e4e6c5a
  F src/mem0.c 6a55ebe57c46ca1a7d98da93aaa07f99f1059645
  F src/mem1.c 3bb59158c38e05f6270e761a9f435bf19827a264c13d1631c58b84bdc96d73b2
@@@ -728,33 -714,33 +719,33 @@@ F src/os.h 1ff5ae51d339d0e30d8a9d814f4b
  F src/os_common.h 6c0eb8dd40ef3e12fe585a13e709710267a258e2c8dd1c40b1948a1d14582e06
  F src/os_kv.c e7d96727db5b67e39d590a68cc61c86daf4c093c36c011a09ebfb521182ec28d
  F src/os_setup.h 8efc64eda6a6c2f221387eefc2e7e45fd5a3d5c8337a7a83519ba4fbd2957ae2
- F src/os_unix.c 038bc8d8ef29d076d0646a487227f9ab049a26e9fd71b77e7c8421351dd40844
 -F src/os_unix.c fa5e09b4df35ad845440cad67b86908cfe1fd4c28c51915f82e23633d1992bf4
++F src/os_unix.c 79f6dbd25a6ce3996354cb16457d39e01591d2c177c3ac2849c7d3c6511a2778
  F src/os_win.c 0d553b6e8b92c8eb85e7f1b4a8036fe8638c8b32c9ad8d9d72a861c10f81b4c5
  F src/os_win.h 5e168adf482484327195d10f9c3bce3520f598e04e07ffe62c9c5a8067c1037b
- F src/pager.c 3ebaafa0385796a00a1f89b38d6d40bdb8331eb1778d3252b3f83eccac340535
 -F src/pager.c fe34fd22ec251436985d7b6ebdd05bf238a17901c2cb23d3d28974dd2361a912
 -F src/pager.h 6137149346e6c8a3ddc1eeb40aee46381e9bc8b0fcc6dda8a1efde993c2275b8
 -F src/parse.y 3b784d6083380a950e3b1b32ce5ddd303e8c7c209d8ab788df2c62aaf9ee8eb3
++F src/pager.c b0e8ba46296abca6d9110d9ef20c16789f78f91af9427a26dc7d979458f43184
 +F src/pager.h bc603f12d047db2643989ed1c254d32aa9c610d31b5bb02d94858e658bf63af1
- F src/parse.y aa52bf080906d3214e01343a67feabbc330f9c7e7f1db6126a3b722cbf58c01d
++F src/parse.y ed14fa473eaa60ec94b9cb970908e708d2b190f41c8042a001b20788b1c71ef5
  F src/pcache.c 588cc3c5ccaaadde689ed35ce5c5c891a1f7b1f4d1f56f6cf0143b74d8ee6484
- F src/pcache.h 1497ce1b823cf00094bb0cf3bac37b345937e6f910890c626b16512316d3abf5
+ F src/pcache.h 092b758d2c5e4dabb30eae46d8dfad77c0f70b16bf3ff1943f7a232b0fe0d4ba
  F src/pcache1.c 131ca0daf4e66b4608d2945ae76d6ed90de3f60539afbd5ef9ec65667a5f2fcd
  F src/pragma.c ecec75795c1821520266e4f93fa8840cce48979af532db06f085e36a7813860f
  F src/prepare.c f6a6e28a281bd1d1da12f47d370a81af46159b40f73bf7fa0b276b664f9c8b7d
- F src/printf.c b1b29b5e58e1530d5daeee5963d3c318d8ab2d7e38437580e28755753e0c1ded
+ F src/printf.c 9cff219dba73b1aa9a8113e83e962f03f7bea8b6eb51cefb25bc468d5a69fb2d
 -F src/random.c 606b00941a1d7dd09c381d3279a058d771f406c5213c9932bbd93d5587be4b9c
 +F src/random.c a3e70f8515721ff24d2c0e6afd83923e8faab5ab79ececea4c1bf9fe4049fbb2
  F src/resolve.c 928ff887f2a7c64275182060d94d06fdddbe32226c569781cf7e7edc6f58d7fd
  F src/rowset.c 8432130e6c344b3401a8874c3cb49fefe6873fec593294de077afea2dce5ec97
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- F src/sqlite.h.in 68774024340add2cc71f1b5c06d63825a0e70b60110a598a9f73d02bd7251347
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++F src/select.c 08a53faa557429a4d82246e2b133416872732d75a980d7f359206b35c5749258
+ F src/shell.c.in 2acdfca982deb70cdfefb8b422822d4e0234fe4dde6ff2bd9020b26445853917
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  F src/sqlite3.rc 015537e6ac1eec6c7050e17b616c2ffe6f70fca241835a84a4f0d5937383c479
  F src/sqlite3ext.h 1b7a0ee438bb5c2896d0609c537e917d8057b3340f6ad004d2de44f03e3d3cca
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  F src/sqliteLimit.h 904a3f520362c7065c18165aaabd504fb13cc1b76cb411f38bd41ac219e4af1e
  F src/status.c 7565d63a79aa2f326339a24a0461a60096d0bd2bce711fefb50b5c89335f3592
  F src/table.c 0f141b58a16de7e2fbe81c308379e7279f4c6b50eb08efeec5892794a0ba30d1
  F src/tclsqlite.c 85b5a20df96016e5d1d8fdc68c8a4c279c5b93e2049b77cd806c2cc50b9d8c56
  F src/tclsqlite.h 614b3780a62522bc9f8f2b9fb22689e8009958e7aa77e572d0f3149050af348a
- F src/test1.c 14eaf181d3f1c70db7e55df90404e5f90ab341edb3bd751f758c94f4f3aec2e4
 -F src/test1.c 3e3b013f59ffcb57dce00c90d55907072d71d4e970cb0a590cb261efe11bae9c
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  F src/test4.c 0ac87fc13cdb334ab3a71823f99b6c32a6bebe5d603cd6a71d84c823d43a25a0
@@@ -767,7 -753,7 +758,7 @@@ F src/test_backup.c a2bfd90d2ff2511b863
  F src/test_bestindex.c d75fad21369d80910238032bcf8d9ca1f2bffda13c1ceec63bfbb7f704448b15
  F src/test_blob.c 77b994e17f2c87055f44fd96c9a206c5a7155bae2cda2769af60c2f3582f962c
  F src/test_btree.c 28283787d32b8fa953eb77412ad0de2c9895260e4e5bd5a94b3c7411664f90d5
- F src/test_config.c 466afde38393fd46d2ba0fd8a566dbeba0d49923a36ea094616c615a515e78a3
 -F src/test_config.c e02566c2c4ee2916324ce17123a798b47663cead2de546cfbd71d8cddb46bb26
++F src/test_config.c c5eac1386e78c410219b6749bd65337bf3e86836b106f7e8f9dfa42a23a6d206
  F src/test_delete.c d0e8f6dc55cfc98a7c27c057fb88d512260564bf0b611482656c68b8f7f401ed
  F src/test_demovfs.c 3efa2adf4f21e10d95521721687d5ca047aea91fa62dd8cc22ac9e5a9c942383
  F src/test_devsym.c 649434ed34d0b03fbd5a6b42df80f0f9a7e53f94dd1710aad5dd8831e91c4e86
@@@ -804,28 -790,28 +795,28 @@@ F src/test_wsd.c 41cadfd9d97fe8e3e4e44f
  F src/threads.c 4ae07fa022a3dc7c5beb373cf744a85d3c5c6c3c
  F src/tokenize.c f297bbf02037639e7a93b37d9c6e4415b3de1273395ee8fa8183e741e1e7fb72
  F src/treeview.c feaa59f14db4f7b5aacca9c5ad5aeb562c1f98262c1ffd74371f4186ade91fc5
- F src/trigger.c a40440614bdf523090cc07223f4878f7e3c892bcd1a13afe18f90190daa5945d
+ F src/trigger.c 4bf3bfb3851d165e4404a9f9e69357345f3f7103378c07e07139fdd8aeb7bd20
 -F src/update.c 3e5e7ff66fa19ebe4d1b113d480639a24cc1175adbefabbd1a948a07f28e37cf
 +F src/update.c b370610139b1a568bda5b1e50e767b8fc760dce28436001884e464f6f20a8d0a
  F src/upsert.c 215328c3f91623c520ec8672c44323553f12caeb4f01b1090ebdca99fdf7b4f1
  F src/utf.c 7267c3fb9e2467020507601af3354c2446c61f444387e094c779dccd5ca62165
- F src/util.c 10572efe1bcf43fc2f6015cfba6126a4a5e32e7d6478a946a2b27d5ce189328b
+ F src/util.c eccfa8b3b414bb64c6543421c9fd10e5f07e103baae36427a273a9131527694c
 -F src/vacuum.c d3d35d8ae893d419ade5fa196d761a83bddcbb62137a1a157ae751ef38b26e82
 -F src/vdbe.c 5328c99dd256ee8132383565a86e253543a85daccfd7477c52f20bac6b385a7f
 +F src/vacuum.c 09d61b53904979f2c6acb740121fd0d1b5371f962baaaa2dbbe449b5535ff581
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 -F src/vdbeaux.c 396d38a62a357b807eabae0cae441fc89d2767a57ab08026b7072bf7aa2dd00c
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  F src/vdbeblob.c b3f0640db9642fbdc88bd6ebcc83d6009514cafc98f062f675f2c8d505d82692
- F src/vdbemem.c bdfda8e65933cfee34aa29c2bfa31fc07609f3d56d147aa8a367a297533d33d1
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- F src/where.c 7a7fe745dd8104d0276a3d3f6e6ac7f087af3dd9f34a90bc937e5e7aea817e15
+ F src/where.c 9f09ee7b260010138d5f9fb5f195b98051119eae3096a99d72ff16c83230f4af
  F src/whereInt.h 8d94cb116c9e06205c3d5ac87af065fc044f8cf08bfdccd94b6ea1c1308e65da
  F src/wherecode.c 783ecd30061c875c919a5163e4b55f9a0eccdaf7c9b17ad2908a1668a8766bc4
  F src/whereexpr.c e9f7185fba366d9365aa7a97329609e4cf00b3dd0400d069fbaa5187350c17c6
@@@ -2211,8 -2189,9 +2206,8 @@@ F tool/warnings-clang.sh bbf6a1e685e534
  F tool/warnings.sh d924598cf2f55a4ecbc2aeb055c10bd5f48114793e7ba25f9585435da29e7e98
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
  F tool/winmain.c 00c8fb88e365c9017db14c73d3c78af62194d9644feaf60e220ab0f411f3604c
- P f617f2a085efa5c433f80ea0ab721569c67d5eb44afb47869ceedac70c82bd15 091bd90ed5a6a326fd532e93bd17903e052476da14dc6aee2599a9acf75a3276
- R 67019a5ea0307fde661285dbe15cff73
 -P 88dce64242552e7443d9fb496f6f3ad71dc5b4a882ce21b7ef1d5ea4e26f1e61 703cbb0f760515eac1e6f72a5e5cd928258c71378e4a976082b6518c90128135
 -R 081029f3feecf24cb4be31bd4056634e
 -T +closed 703cbb0f760515eac1e6f72a5e5cd928258c71378e4a976082b6518c90128135
 -U dan
 -Z aa660315ed5ec6682f68be7645c0d8b8
++P 8c043820d33c19ed8621e26de70655d1bc4c13103427a36f056f439a7fbb98b3 7168988acbec2d8d51106a263e553f8942b8b23d983dbbe5028e0f9be68cbb83
++R 2984847c7bd8afd18c47d58480f4143f
 +U drh
- Z f8c342c83e4d1c806750d9b63944454f
++Z f223610a88ab3c9bce4a1c082284d6e3
  # Remove this line to create a well-formed Fossil manifest.

diff --cc manifest.uuid
index b00befa451f4bb09692eec97e3f0ce35bb7bb476,5e463bf5c673444ed7cc62197a003caf4bdbf4ee..ab4f7f9d234c600c6db5710f23fbd25446d29551
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 8c043820d33c19ed8621e26de70655d1bc4c13103427a36f056f439a7fbb98b3
 -7168988acbec2d8d51106a263e553f8942b8b23d983dbbe5028e0f9be68cbb83
++81bde19bb9bb0be9eddb5c4c564a1a6ee3f612b41ff5289466f09ae1d62e9206

diff --cc src/func.c
Simple merge

diff --cc src/main.c
index fa2be34550eecc6e86c4216171eead03cae30f0c,b44ac8dca8eacdc8588cc7dea5f7532f80bbfb17..db6074c8a8bef170f336f364a3277dab6ef28c40
--- 1/src/main.c
--- 2/src/main.c
+++ b/src/main.c
@@@ -3399,7 -3407,8 +3407,8 @@@ static int openDatabase
    db->aDb = db->aDbStatic;
    db->lookaside.bDisable = 1;
    db->lookaside.sz = 0;
 -
+   db->nFpDigit = 17;
 +  sqlite3FastPrngInit(&db->sPrng);
    assert( sizeof(db->aLimit)==sizeof(aHardLimit) );
    memcpy(db->aLimit, aHardLimit, sizeof(db->aLimit));
    db->aLimit[SQLITE_LIMIT_WORKER_THREADS] = SQLITE_DEFAULT_WORKER_THREADS;

diff --cc src/os_unix.c
Simple merge

diff --cc src/pager.c
Simple merge

diff --cc src/parse.y
Simple merge

diff --cc src/select.c
Simple merge

diff --cc src/sqlite.h.in
Simple merge

diff --cc src/sqliteInt.h
index c17d4287384730a9cbf60fe4f9192bb0765fab83,795f874b61fb326b6783f0c4b42d39de0aae3b3e..7ae16b6d7b64adbc40449863fed44f189e7e5046
--- 1/src/sqliteInt.h
--- 2/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@@ -1702,8 -1692,8 +1702,9 @@@ struct sqlite3 
    u8 noSharedCache;             /* True if no shared-cache backends */
    u8 nSqlExec;                  /* Number of pending OP_SqlExec opcodes */
    u8 eOpenState;                /* Current condition of the connection */
+   u8 nFpDigit;                  /* Significant digits to keep on double->text */
    int nextPagesize;             /* Pagesize after VACUUM if >0 */
 +  FastPrng sPrng;               /* State of the per-connection PRNG */
    i64 nChange;                  /* Value returned by sqlite3_changes() */
    i64 nTotalChange;             /* Value returned by sqlite3_total_changes() */
    int aLimit[SQLITE_N_LIMIT];   /* Limits */

diff --cc src/test1.c
Simple merge

diff --cc src/test_config.c
Simple merge

diff --cc src/wal.c
Simple merge