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Improved detection of cells that extend into the reserved space at the end 

of the page while adjusting overflow page pointers during autovacuum.

FossilOrigin-Name: 8097712c9c1f4ea16bc5dd462da248ef98896061
This commit is contained in:
drh 2017-01-12 15:11:03 +00:00
parent 24be549329
commit b701c9a6c3
3 changed files with 15 additions and 13 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Remove\sinvalid\stest\scase\sfrom\scursorhints2.test
D 2017-01-12T11:52:47.951
C Improved\sdetection\sof\scells\sthat\sextend\sinto\sthe\sreserved\sspace\sat\sthe\send\nof\sthe\spage\swhile\sadjusting\soverflow\spage\spointers\sduring\sautovacuum.
D 2017-01-12T15:11:03.724
F Makefile.in 41bd4cad981487345c4a84081074bcdb876e4b2e
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da
@ -331,7 +331,7 @@ F src/auth.c 930b376a9c56998557367e6f7f8aaeac82a2a792
F src/backup.c faf17e60b43233c214aae6a8179d24503a61e83b
F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
F src/btmutex.c 0e9ce2d56159b89b9bc8e197e023ee11e39ff8ca
F src/btree.c 44e9612965f63bef288673b81faa43e765bcac5f
F src/btree.c 90f8b15ec9baf65d5bfff65bdaee773b928836c1
F src/btree.h e6d352808956ec163a17f832193a3e198b3fb0ac
F src/btreeInt.h 10c4b77c2fb399580babbcc7cf652ac10dba796e
F src/build.c 9e799f1edd910dfa8a0bc29bd390d35d310596af
@ -1544,7 +1544,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P c07aef6f909fe35de110f0b180dbf5aa4c226af3
R c1c1751767bcc81e2bffd9195a0f35dd
P 163cc1b2f7100827d5803b81dcd97a1417744f66
R d095162836679cc779e9b3972f22e3ea
U drh
Z 744c5ff27f4cf888c7a2ae696c740d23
Z e05f25d6fff0c473a188620363f2fa54

2
manifest.uuid
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@ -1 +1 @@
163cc1b2f7100827d5803b81dcd97a1417744f66
8097712c9c1f4ea16bc5dd462da248ef98896061

14
src/btree.c
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@ -3356,12 +3356,14 @@ static int modifyPagePointer(MemPage *pPage, Pgno iFrom, Pgno iTo, u8 eType){
if( eType==PTRMAP_OVERFLOW1 ){
CellInfo info;
pPage->xParseCell(pPage, pCell, &info);
if( info.nLocal<info.nPayload
&& pCell+info.nSize-1<=pPage->aData+pPage->maskPage
&& iFrom==get4byte(pCell+info.nSize-4)
){
put4byte(pCell+info.nSize-4, iTo);
break;
if( info.nLocal<info.nPayload ){
if( pCell+info.nSize > pPage->aData+pPage->pBt->usableSize ){
return SQLITE_CORRUPT_BKPT;
}
if( iFrom==get4byte(pCell+info.nSize-4) ){
put4byte(pCell+info.nSize-4, iTo);
break;
}
}
}else{
if( get4byte(pCell)==iFrom ){