From: drh <drh@noemail.net>
Date: Thu, 19 Nov 2020 19:43:46 +0000 (+0000)
Subject: Use an ephemeral table rather than a RowSet to remember rowids in the
X-Git-Tag: version-3.34.0~26
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5dc18e33aefa9eea74cba2084120d4b76d78a654;p=thirdparty%2Fsqlite.git

Use an ephemeral table rather than a RowSet to remember rowids in the
two-pass UPDATE algorithm, as this uses much less memory for large UPDATEs.

FossilOrigin-Name: 842c432772e6cd8464cdb7bfdb38789adeea9aa9e0486d4034cc9841f085f517
---

5dc18e33aefa9eea74cba2084120d4b76d78a654
diff --cc manifest
index 9f2eb94893,91969d914d..83d71f54b5
--- a/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C If\sa\sread()\sor\spread()\sindicates\sthat\sthe\sdatabase\sfile\sis\sunreadable\sdue\sto\nfilesystem\sdamage,\sthen\sit\sreturns\sSQLITE_IOERR_CORRUPTFS\swhich\sis\sthen\nconverted\sinto\sSQLITE_CORRUPT\sbefore\sbeing\sreturned\sto\sthe\sapplication.
- D 2020-11-18T23:44:41.584
 -C Claw\sback\smost\sof\sthe\sperformance\slost\sin\sthe\sprevious\scommit.
 -D 2020-11-17T21:26:13.913
++C Use\san\sephemeral\stable\srather\sthan\sa\sRowSet\sto\sremember\srowids\sin\sthe\ntwo-pass\sUPDATE\salgorithm,\sas\sthis\suses\smuch\sless\smemory\sfor\slarge\sUPDATEs.
++D 2020-11-19T19:43:46.382
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  F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
@@@ -610,7 -609,7 +610,7 @@@ F src/upsert.c 2920de71b20f04fe25eb00b6
  F src/utf.c ee39565f0843775cc2c81135751ddd93eceb91a673ea2c57f61c76f288b041a0
  F src/util.c c0c7977de7ef9b8cb10f6c85f2d0557889a658f817b0455909a49179ba4c8002
  F src/vacuum.c 492422c1463c076473bae1858799c7a0a5fe87a133d1223239447c422cd26286
- F src/vdbe.c 0f4402a3f8ab7d7f37fbed04d74007f978805aa6ca09738606331e0dc7b2b614
 -F src/vdbe.c 59e8caad2c5520c942ee8321a008991a0d36be2b0641fd16dd941d89e781ea97
++F src/vdbe.c d24a43b6b1ed2dba893636a14f5e56001444ab3fd5465e3bca8ab01799840acd
  F src/vdbe.h 83603854bfa5851af601fc0947671eb260f4363e62e960e8a994fb9bbcd2aaa1
  F src/vdbeInt.h 3ca5e9fd6e095a8b6cf6bc3587a46fc93499503b2fe48951e1034ba9e2ce2f6e
  F src/vdbeapi.c c5e7cb2ab89a24d7f723e87b508f21bfb1359a04db5277d8a99fd1e015c12eb9
@@@ -1885,8 -1883,7 +1885,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
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diff --cc manifest.uuid
index e272363bc4,648f90e2a1..a5fa26bc92
--- a/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
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