Merge all enhancements from trunk into the wal2 branch.

FossilOrigin-Name: dcbcbc2a6905588a63b9c926473a7097ca0a03803c5bd3f416f268ae2aa3dc87

diff --cc manifest
index f58174b00ecafdbae58e964e8b1d9536446952ed,fc89663fe67b7fc3d284da57e822d87926f6f32d..a3bd7bf870a477f1aefdd5b75d704a3ee406f8de
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,12 -1,12 +1,12 @@@
- C Merge\sthe\slatest\strunk\senhancements\sinto\sthe\swal2\sbranch.
- D 2019-05-14T22:02:03.900
 -C Fix\sdbfuzz2\sso\sthat\sit\swill\scompile\son\ssystems\sthat\sdo\snot\ssupport\sgetrlimit().
 -D 2019-07-08T18:35:51.425
++C Merge\sall\senhancements\sfrom\strunk\sinto\sthe\swal2\sbranch.
++D 2019-07-08T21:19:34.627
  F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
  F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
 -F Makefile.in 4640daf826b80947a924ac44275c451ffc13007c7c866a5730c8ce5cf9e1dc74
 +F Makefile.in 30eccaf02ca3af1111ed883dc7624508cdeaafff80b400887e386d523e2a92cd
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
 -F Makefile.msc 26957950b2b4f3b26e311eeea70437f85a77765f71d3a06489466d66ee321100
 +F Makefile.msc 4d71614a413a7c0b6fa689f96ecf68f01207e1a674f44121799123e01cd7c1d6
- F README.md 74745e53db87fdc86f571dd7ec1bd18e154d0abd6d37d2292a1062e931318a29
+ F README.md 1514a365ffca3c138e00c5cc839906108a01011a6b082bad19b09781e3aa498a
  F VERSION cc8cd90333c65cdf4cb346f356a2ce1eb0f5b7fa1d17a34d7350103e7320af1f
  F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
  F art/sqlite370.eps aa97a671332b432a54e1d74ff5e8775be34200c2
@@@ -278,8 -278,7 +279,8 @@@ F ext/misc/README.md d6dd0fe1d8af770402
  F ext/misc/amatch.c 50a9ef2d38dabfa371f8c1904097d493271e63d58ccb0e9b79a4fa4a94e66660
  F ext/misc/anycollseq.c 5ffdfde9829eeac52219136ad6aa7cd9a4edb3b15f4f2532de52f4a22525eddb
  F ext/misc/appendvfs.c 3777f22ec1057dc4e5fd89f2fbddcc7a29fbeef1ad038c736c54411bb1967af7
- F ext/misc/blobio.c 085bbfa57ea58bb15d994ba4cd397bff6f0c38c4f618adbc62cf4d3780e5d88a
 +F ext/misc/bgckpt.c 49ae19aa03e6da393db5d17da256374d4c4d36889fdd89d6e4bc93aca2b752e6
+ F ext/misc/blobio.c a867c4c4617f6ec223a307ebfe0eabb45e0992f74dd47722b96f3e631c0edb2a
  F ext/misc/btreeinfo.c 4f0ebf278f46e68e6306c667917766cebc5550fd35d5de17847988e22892d4d2
  F ext/misc/carray.c ed96c218ea940b85c9a274c4d9c59fe9491c299147a38a8bba537687bd6c6005
  F ext/misc/closure.c dbfd8543b2a017ae6b1a5843986b22ddf99ff126ec9634a2f4047cd14c85c243
@@@ -464,14 -463,14 +465,14 @@@ F src/auth.c 0fac71038875693a937e506bce
  F src/backup.c b1d37f6f7f5913944583733ed0f9e182f3ece0d42c27f46701142141a6e6fd33
  F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
  F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
- F src/btree.c 1c9c48016953b2ac9d39867a46e8f7b8d8248e89fcb3fb23f192df28130f4ee1
 -F src/btree.c 1dbc191e5c1d9bca84a956fed5d73924c574ae5390855009f067bd0f6422e462
++F src/btree.c caaf623a96f915db22fd49608156ce914b5e8ee2b0ef53aa177c69ce06f74c6f
  F src/btree.h c11446f07ec0e9dc85af8041cb0855c52f5359c8b2a43e47e02a685282504d89
  F src/btreeInt.h 6111c15868b90669f79081039d19e7ea8674013f907710baa3c814dc3f8bfd3f
- F src/build.c aead3d74794ed4dac396fdd9323ba2272e3734f07c5d7f1f57389e5afbd99f3f
+ F src/build.c 23a0253ab53e62feadcc0c6f31e7e418ef9d4b92c82a1398e98433776b920a4e
  F src/callback.c 25dda5e1c2334a367b94a64077b1d06b2553369f616261ca6783c48bcb6bda73
  F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
- F src/ctime.c 109e58d00f62e8e71ee1eb5944ac18b90171c928ab2e082e058056e1137cc20b
- F src/date.c ebe1dc7c8a347117bb02570f1a931c62dd78f4a2b1b516f4837d45b7d6426957
+ F src/ctime.c 37f3d21193c4f7d141d0691cced5b39c99951bfef78df9887faf9167b9c42f37
+ F src/date.c e1d8ac7102f3f283e63e13867acb0efa33861cf34f0faf4cdbaf9fa7a1eb7041
  F src/dbpage.c 135eb3b5e74f9ef74bde5cec2571192c90c86984fa534c88bf4a055076fa19b7
  F src/dbstat.c c12833de69cb655751487d2c5a59607e36be1c58ba1f4bd536609909ad47b319
  F src/delete.c d08c9e01a2664afd12edcfa3a9c6578517e8ff8735f35509582693adbe0edeaf
@@@ -510,25 -509,25 +511,25 @@@ F src/os_setup.h 0dbaea40a7d36bf311613d
  F src/os_unix.c f6e91b8fd82af7afbfd073c4974ad6cdb8e62d9f65ceddb45167835a0567fdc0
  F src/os_win.c 85d9e532d0444ab6c16d7431490c2e279e282aa0917b0e988996b1ae0de5c5a0
  F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
 -F src/pager.c 422fd8cfa59fb9173eff36a95878904a0eeb0dcc62ba49350acc8b1e51c4dc7b
 -F src/pager.h 217921e81eb5fe455caa5cda96061959706bcdd29ddb57166198645ef7822ac3
 +F src/pager.c 3469df53e0d6acd4f40d77f1f414079e1c0b17e5ca2a782e7ccd91262a8ce67e
 +F src/pager.h 3abf6d65199fd0680b26a047c6167a96a4d6ead7535e02522b79f0fb27a3edec
- F src/parse.y 22f64d8a8910acd17580450513b58d64187b0962848380c7f0a39376b8a48cee
- F src/pcache.c 696a01f1a6370c1b50a09c15972bc3bee3333f8fcd1f2da8e9a76b1b062c59ee
+ F src/parse.y 026e3e6fff32432166a4eae0bdb78ad09a53c84eb49acb44dc32e49b4c0b8a48
+ F src/pcache.c fd2d0553b3222d6b9f7cb251079e5bca1299d1161da3027b525932d8bf46340a
  F src/pcache.h 4f87acd914cef5016fae3030343540d75f5b85a1877eed1a2a19b9f284248586
- F src/pcache1.c be64b2f3908a7f97c56c963676eb12f0d6254c95b28cdc1d73a186eff213219d
- F src/pragma.c 4b176da9a55ccc62bd28665f1972f5e286722238731dd948290e3e42fd75a568
- F src/pragma.h 482c26f352efd7a4ed1354d83ffa992e13004f6528edeee44cdbfd5025a490bd
+ F src/pcache1.c e6373934cdafea272d94feb224344f9fd93ff94318221b64ccabd72d98b4672e
 -F src/pragma.c 925bcac0afd98a0d4255c7524b93239ab4d83893d96f7f8fdccd78d4929a39bb
++F src/pragma.c 6c1383a5890914a339fde1b88607b06b089dc7b5f77348f6c53cc3242f09e44f
+ F src/pragma.h 4a9fabff14db4487a734dfeeb4be984ce662bfdccfae16145b9c732327735e13
  F src/prepare.c 78027c6231fbb19ca186a5f5f0c0a1375d9c2cec0655273f9bd90d9ff74a34b3
- F src/printf.c 67f79227273a9009d86a017619717c3f554f50b371294526da59faa6014ed2cd
+ F src/printf.c 9be6945837c839ba57837b4bc3af349eba630920fa5532aa518816defe42a7d4
  F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
- F src/resolve.c 408632d9531ca8f1df8591f00530797daaa7bde3fe0d3211de4d431cbb99347e
+ F src/resolve.c 93b7bc7c45efa6322d92293361c51a873690daed50cf77eeff88a448246b0d5a
  F src/rowset.c d977b011993aaea002cab3e0bb2ce50cf346000dff94e944d547b989f4b1fe93
- F src/select.c ef860c7e5882c89c030432a6d2cf13c67d1d51fd511cf45cbdfd5c2faf44d51d
- F src/shell.c.in 6c992809abf20dbb4aad89299d7c15c98ddf2504b23c83ef71eb435ad392cdc3
- F src/sqlite.h.in 0605c88d98c85fbcba8bbd9716e7cc10b361e7b21cf2375171130f577388c943
+ F src/select.c 62f21307b280791c50554c9fa3766758dd695ed66a05d2408d213355c7b0aa89
+ F src/shell.c.in 82f8a473c01662f52233c6c75b9bf88d0d2cab276086d5d4ca6f2ff57a3e48eb
+ F src/sqlite.h.in 83ebc8ab1a2e82d92214006ea2c15bf8a0604f3fac2c31dd9ce9021f568c71f2
  F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
  F src/sqlite3ext.h 9ecc93b8493bd20c0c07d52e2ac0ed8bab9b549c7f7955b59869597b650dd8b5
- F src/sqliteInt.h b78a1f0bdc46582f33876932f8b45a264be7ee4f3f6c31102f924d33fa6177ee
+ F src/sqliteInt.h bf65dfa6565fae2e0d501088fc9c5212244adc1429a543827a16b2f5eaf41982
  F src/sqliteLimit.h 1513bfb7b20378aa0041e7022d04acb73525de35b80b252f1b83fedb4de6a76b
  F src/status.c 46e7aec11f79dad50965a5ca5fa9de009f7d6bde08be2156f1538a0a296d4d0e
  F src/table.c b46ad567748f24a326d9de40e5b9659f96ffff34
@@@ -550,11 -549,11 +551,11 @@@ F src/test_blob.c ae4a0620b478548afb679
  F src/test_btree.c 8b2dc8b8848cf3a4db93f11578f075e82252a274
  F src/test_config.c 5ebafbcd5c75ac1c16bb0c8fe926dc325cc03e780943a88ca50e0d9a4fc4d2f5
  F src/test_delete.c e2fe07646dff6300b48d49b2fee2fe192ed389e834dd635e3b3bac0ce0bf9f8f
- F src/test_demovfs.c a0c3bdd45ed044115c2c9f7779e56eafff18741e
- F src/test_devsym.c 1960abbb234b97e9b920f07e99503fc04b443f62bbc3c6ff2c2cea2133e3b8a2
+ F src/test_demovfs.c 86142ba864d4297d54c5b2e972e74f3141ae4b30f05b3a95824184ed2d3d7f91
+ F src/test_devsym.c 6109b45c3db3ef7b002320947ed448c027356ab8b885156ff535fd8684d4a571
  F src/test_fs.c ba1e1dc18fd3159fdba0b9c4256f14032159785320dfbd6776eb9973cb75d480
  F src/test_func.c 181f992e5495644434c4f0e3cc72362a78c295eb2cf3ff4d02498b8bde7aa276
 -F src/test_hexio.c 1d4469ca61ab202a1fcec6543f584d2407205e8d
 +F src/test_hexio.c 1a70ba996c8c8c028469b428ceca0d2c9c84fae68589984022ed3fc6e706eaf7
  F src/test_init.c 4413c211a94b62157ca4c145b3f27c497f03c664
  F src/test_intarray.c 39b4181662a0f33a427748d87218e7578d913e683dc27eab7098bb41617cac71
  F src/test_intarray.h d57ae92f420cda25e22790dac474d60961bd0c500cbaa3338a05152d4a669ef7
@@@ -593,9 -592,9 +594,9 @@@ F src/trigger.c bb034c08eca111e66a19cda
  F src/update.c 3cb9150d2cf661d938e2f1b1749945f3faa767f88febdb739ab1793bbf895ff2
  F src/upsert.c 0dd81b40206841814d46942a7337786932475f085716042d0cb2fc7791bf8ca4
  F src/utf.c 2f0fac345c7660d5c5bd3df9e9d8d33d4c27f366bcfb09e07443064d751a0507
- F src/util.c 4c0669e042b4e50a08a9e5fd14cecc76e5f877efa288533dccddb6fe98f4d6b5
+ F src/util.c aef606a78b85d042138a841babbc0f98471b19b9a340b962e8fae307bc8cf3da
  F src/vacuum.c 82dcec9e7b1afa980288718ad11bc499651c722d7b9f32933c4d694d91cb6ebf
- F src/vdbe.c e2c3aee05dda65a877e868d18cc5f13674c3b05a02cc4653a3e195fc5cdd4a99
 -F src/vdbe.c aaa36d1ac7d55baf007e9c03ee7c826834a51dfe7a56ba4c386318695dd87c99
++F src/vdbe.c 2c7d64b3ab70cd5f9ca841ef05aac6297f54a4cbef7181e363be122d2c6d79ca
  F src/vdbe.h 712bca562eaed1c25506b9faf9680bdc75fc42e2f4a1cd518d883fa79c7a4237
  F src/vdbeInt.h 3ba14553508d66f58753952d6dd287dce4ec735de02c6440858b4891aed51c17
  F src/vdbeapi.c f9161e5c77f512fbb80091ce8af621d19c9556bda5e734cffaac1198407400da
@@@ -606,14 -605,14 +607,14 @@@ F src/vdbesort.c 66592d478dbb46f19aed0b
  F src/vdbetrace.c fa3bf238002f0bbbdfb66cc8afb0cea284ff9f148d6439bc1f6f2b4c3b7143f0
  F src/vtab.c 1fa256c6ddad7a81e2a4dc080d015d4b0a7135767717d311298e47f6fca64bb3
  F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
 -F src/wal.c b09a2a9cab50efa08451a8c81d47052120ad5da174048c6d0b08d405384abdf2
 -F src/wal.h 606292549f5a7be50b6227bd685fa76e3a4affad71bb8ac5ce4cb5c79f6a176a
 +F src/wal.c 20ddea6a32a66ffd4b9cc2eb7667b10c56ae5fa81bfaf9c80cc9a94d5146e17e
 +F src/wal.h d2a69695c84137f76e19a247a342cb02ab0131001b6f58153d94b71195bbd84d
  F src/walker.c 7607f1a68130c028255d8d56094ea602fc402c79e1e35a46e6282849d90d5fe4
- F src/where.c 99c7b718ef846ac952016083aaf4e22ede2290beceaf4730a2df55c023251369
+ F src/where.c 2f11eeb14335b7640f886b2fb441f54a94c35ab5cde8b53461a1074bfd587081
  F src/whereInt.h 1b728f71654ebf8421a1715497a587f02d6f538e819af58dc826908f8577e810
  F src/wherecode.c 37a1004237d630d785c47bba2290eac652a7a8b0047518eba3cb7c808b604c4a
- F src/whereexpr.c 4219bdd5d310ba6424166d918efef301c21e1b7f6444e964b415c4a5b877a8fe
- F src/window.c 5be2cf7d8763cc97137fc44d015aed8a1a4a56fe9700d7933ed560172617c756
+ F src/whereexpr.c 5e559bdd24b06e3bc2e68f258bf751302954dc1e432daf71fdd8098a71462326
+ F src/window.c 3408c0f606574d41033d461506bad68790239844b23e70610738a71152873d05
  F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
  F test/affinity2.test a6d901b436328bd67a79b41bb0ac2663918fe3bd
  F test/affinity3.test 6a101af2fc945ce2912f6fe54dd646018551710d
@@@ -1208,7 -1210,7 +1212,7 @@@ F test/parser1.test 6ccdf5e459a5dc4673d
  F test/pcache.test c8acbedd3b6fd0f9a7ca887a83b11d24a007972b
  F test/pcache2.test af7f3deb1a819f77a6d0d81534e97d1cf62cd442
  F test/percentile.test 4243af26b8f3f4555abe166f723715a1f74c77ff
- F test/permutations.test bb6ee1e056f0bc022aa14e4d643fdeb95fe17fbb32959dd38a6bfa7e1cd41194
 -F test/permutations.test 4282fb00e5ac0f8c2cd1be62652f6da4ac03ce3c58b7d785fa17f4684492a0e0
++F test/permutations.test 711f0aa9e8c89fcf97aaa2c0dac3f6d86b5085b1b9364008e78d9824c7fdbaf8
  F test/pg_common.tcl 4740dc35190d6acdab14c097783331361301ab504a94d948f6afbb56ce0a51e8
  F test/pragma.test cf066fe0f7f5d49f4758de4986407b8676c61aaa7871599340d64f42a8edc352
  F test/pragma2.test e5d5c176360c321344249354c0c16aec46214c9f
@@@ -1837,7 -1831,7 +1843,7 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 8950f1195a5e5a67202192857fda50c359a446d20264eab328209239ae0a2d95 bc7d2c1656396bb4f5f1f814e60dbf816cc91c5a521b54ad593cd3da0fe8dcb4
- R fe07f615b3b76ef48e68b85d477c3df0
 -P 8fb0c6d5a38e77aa4c5f394fb8af1b0c7c6a4790e932aabc213a3078ee9acaf6
 -R dcf77f4d7d0214b8fb64b9a4c8c10b8b
++P 23ec34e4f61775198a2b6f8b683fa7db2c57efb1add32c12d5051558952c394c 36295dcebcb5487f2a462eabb41900ac28b8e839898ef0fae0aa4730bf9b0671
++R a857c0f6994f0dd65eb06deab6182770
  U drh
- Z 5eea3f1ee0b83b4335f7a5e451e556d0
 -Z 19085f878a144e5e0a91542256409ad0
++Z 058b3503d1fd12a379722bdb410d3732

diff --cc manifest.uuid
index 1ed25790c85c8a4c72bc1cc9b4cbb6fb4b16633f,0157ddcfa6a297b0367176f52e0b0f6706aecdff..4124926a51b405e3ae939229a5755f411ff2385b
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 23ec34e4f61775198a2b6f8b683fa7db2c57efb1add32c12d5051558952c394c
 -36295dcebcb5487f2a462eabb41900ac28b8e839898ef0fae0aa4730bf9b0671
++dcbcbc2a6905588a63b9c926473a7097ca0a03803c5bd3f416f268ae2aa3dc87

diff --cc src/btree.c
Simple merge

diff --cc src/pragma.c
Simple merge

diff --cc src/vdbe.c
Simple merge

diff --cc test/permutations.test
Simple merge