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Yet another minor size reduction and performance increase in the b-tree

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insert logic.

FossilOrigin-Name: 1dbaf7a119edc5150a5d4be1b72f652a574e5bc5
This commit is contained in:
drh 2016-05-21 12:29:04 +00:00
parent cb89f4aba8
commit 09a4e92c6d
3 changed files with 10 additions and 8 deletions
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12
manifest
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@ -1,5 +1,5 @@
C Small\ssize\sreduction\sand\sperformance\sincrease\sin\sthe\ssqlite3BtreeInsert()\nlogic. C Yet\sanother\sminor\ssize\sreduction\sand\sperformance\sincrease\sin\sthe\sb-tree\ninsert\slogic.
D 2016-05-21T11:23:26.914 D 2016-05-21T12:29:04.510
F Makefile.in f59e0763ff448719fc1bd25513882b0567286317 F Makefile.in f59e0763ff448719fc1bd25513882b0567286317
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434 F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc 306d73e854b1a92ea06e5d1e637faa5c44de53c7 F Makefile.msc 306d73e854b1a92ea06e5d1e637faa5c44de53c7
@ -322,7 +322,7 @@ F src/auth.c b56c78ebe40a2110fd361379f7e8162d23f92240
F src/backup.c 6df65fdd569c901a418887a1a76f82ec35044556 F src/backup.c 6df65fdd569c901a418887a1a76f82ec35044556
F src/bitvec.c 3ee4c8b2c94ed3a7377256e18199e6ff5cf33f63 F src/bitvec.c 3ee4c8b2c94ed3a7377256e18199e6ff5cf33f63
F src/btmutex.c bc87dd3b062cc26edfe79918de2200ccb8d41e73 F src/btmutex.c bc87dd3b062cc26edfe79918de2200ccb8d41e73
F src/btree.c ab4ab00fa42b9f31a3c4f4232ab7dffe15a37728 F src/btree.c da39b19be8a0fad4eb8a3d9e2d95a8ccc3eb8dd1
F src/btree.h a5008b9afe56e8e54ade6c436a910f112defcca9 F src/btree.h a5008b9afe56e8e54ade6c436a910f112defcca9
F src/btreeInt.h c18b7d2a3494695133e4e60ee36061d37f45d9a5 F src/btreeInt.h c18b7d2a3494695133e4e60ee36061d37f45d9a5
F src/build.c 785fa789319d93c6ae20efbd01d4da9ce8f8a793 F src/build.c 785fa789319d93c6ae20efbd01d4da9ce8f8a793
@ -1492,7 +1492,7 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0 F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 8e366f18f5bbd594390e7b091083e99639de324e P 656aa1ecf5129ae43c56a990e95038b5d8cbdcee
R 59f3ac52df516414b0292061ce466d2b R 213b2db355637b4ec446a3f8344f0ebf
U drh U drh
Z 1ed41a6ca1c9810f6f5090ac3b0958c0 Z 69c744da391089b891fa26fe7438d9c6

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656aa1ecf5129ae43c56a990e95038b5d8cbdcee 1dbaf7a119edc5150a5d4be1b72f652a574e5bc5

4
src/btree.c
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@ -8059,6 +8059,7 @@ int sqlite3BtreeInsert(
assert( pPage->leaf ); assert( pPage->leaf );
} }
insertCell(pPage, idx, newCell, szNew, 0, 0, &rc); insertCell(pPage, idx, newCell, szNew, 0, 0, &rc);
assert( pPage->nOverflow==0 || rc==SQLITE_OK );
assert( rc!=SQLITE_OK || pPage->nCell>0 || pPage->nOverflow>0 ); assert( rc!=SQLITE_OK || pPage->nCell>0 || pPage->nOverflow>0 );
/* If no error has occurred and pPage has an overflow cell, call balance() /* If no error has occurred and pPage has an overflow cell, call balance()
@ -8082,7 +8083,8 @@ int sqlite3BtreeInsert(
** row without seeking the cursor. This can be a big performance boost. ** row without seeking the cursor. This can be a big performance boost.
*/ */
pCur->info.nSize = 0; pCur->info.nSize = 0;
if( rc==SQLITE_OK && pPage->nOverflow ){ if( pPage->nOverflow ){
assert( rc==SQLITE_OK );
pCur->curFlags &= ~(BTCF_ValidNKey); pCur->curFlags &= ~(BTCF_ValidNKey);
rc = balance(pCur); rc = balance(pCur);