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Bug fixes in the overwrite optimization.

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FossilOrigin-Name: 0cb6cd2a6a596afaa1cca6c5f5abc2ea75d04f254c7debaf36ecd6a90b66aed6
This commit is contained in:
drh
2018-05-03 12:57:48 +00:00
parent 3de5d16cf7
commit 9b03192e15
3 changed files with 10 additions and 13 deletions
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15
manifest
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@@ -1,5 +1,5 @@
C The\ssqlite3BtreeInsert()\sroutine\stries\sto\soverwrite\san\sexisting\scell\swith\nmodified\scontent\sif\sthe\snew\scontent\sis\sthe\ssame\ssize.\s\sPages\sare\sonly\sdirtied\nif\sthey\schange.\s\sThis\sprototype\sworks\ssome,\sbut\sstill\shas\sissues.
D 2018-05-03T03:59:02.523
C Bug\sfixes\sin\sthe\soverwrite\soptimization.
D 2018-05-03T12:57:48.671
F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
F Makefile.in 5ce9343cba9c189046f1afe6d2bcc1f68079439febc05267b98aec6ecc752439
@@ -434,7 +434,7 @@ F src/auth.c 6277d63837357549fe14e723490d6dc1a38768d71c795c5eb5c0f8a99f918f73
F src/backup.c faf17e60b43233c214aae6a8179d24503a61e83b
F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
F src/btmutex.c 8acc2f464ee76324bf13310df5692a262b801808984c1b79defb2503bbafadb6
F src/btree.c d1b1bd0602381cd668fefdc21bb376083d34a202c7f978ddd6cdfe8b576880fa
F src/btree.c 7216dac5e870868de7429e71727fb87cca8057fd01814c18df2e59a5d00d20d5
F src/btree.h 0866c0a08255142ea0e754aabd211c843cab32045c978a592a43152405ed0c84
F src/btreeInt.h 620ab4c7235f43572cf3ac2ac8723cbdf68073be4d29da24897c7b77dda5fd96
F src/build.c 0c2be5839f22aa2938f217c6c6c2120d9fc96872a546a37541a8271541cb355e
@@ -1727,10 +1727,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P ab0d99d0b5edece4c639baa47ce1ca2c02774cb2515e5b7f36d9bd312ccd3310
R d19653c30e874527a8180a99ea6a4aad
T *branch * cell-overwrite-prototype
T *sym-cell-overwrite-prototype *
T -sym-trunk *
P 489451b378819621537231c1c8a07704437e11c1f5384fd53b09f3977d2213a4
R b89660c58e0d48e704d46836e0da0214
U drh
Z 4db008fe8cce4e65f98c2fd1a101b30c
Z 41261a1ee8ebfd1f0c3b6e3f166f7f4d

2
manifest.uuid
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@@ -1 +1 @@
489451b378819621537231c1c8a07704437e11c1f5384fd53b09f3977d2213a4
0cb6cd2a6a596afaa1cca6c5f5abc2ea75d04f254c7debaf36ecd6a90b66aed6

6
src/btree.c
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@@ -8215,12 +8215,12 @@ static int btreeOverwriteCell(BtCursor *pCur, const BtreePayload *pX){
do{
rc = btreeGetPage(pBt, ovflPgno, &pPage, 0);
if( rc ) return rc;
if( iOffset+ovflPageSize>nTotal ){
ovflPgno = get4byte(pPage->aData + ovflPageSize);
if( iOffset+ovflPageSize<nTotal ){
ovflPgno = get4byte(pPage->aData);
}else{
ovflPageSize = nTotal - iOffset;
}
rc = btreeOverwriteContent(pPage, pPage->aData, pX,
rc = btreeOverwriteContent(pPage, pPage->aData+4, pX,
iOffset, ovflPageSize);
if( rc ) return rc;
iOffset += ovflPageSize;