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An optimization to sqlite3VdbeSerialType(). (CVS 2278) 

FossilOrigin-Name: db36773830cc81c38b78d1776a495d49475523be
This commit is contained in:
drh 2005-01-26 17:47:02 +00:00
parent f87d01abe9
commit 5742b63e4a
3 changed files with 14 additions and 13 deletions
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14
manifest
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@ -1,5 +1,5 @@
C Add\san\sentry\sto\sfaq.tcl\sregarding\sSQLITE_SCHEMA\serrors.\s(CVS\s2277)
D 2005-01-26T10:39:58
C An\soptimization\sto\ssqlite3VdbeSerialType().\s(CVS\s2278)
D 2005-01-26T17:47:03
F Makefile.in ffd81f5e926d40b457071b4de8d7c1fa18f39b5a
F Makefile.linux-gcc a9e5a0d309fa7c38e7c14d3ecf7690879d3a5457
F README a01693e454a00cc117967e3f9fdab2d4d52e9bc1
@ -79,7 +79,7 @@ F src/vdbe.c 4fb54fd01cf00b90dfd02f73785adc3f043e89e3
F src/vdbe.h 067ca8d6750ba4f69a50284765e5883dee860181
F src/vdbeInt.h 24d411de9efc6919a1e580069a597182be269bcf
F src/vdbeapi.c 467caa6e6fb9247528b1c7ab9132ae1b4748e8ac
F src/vdbeaux.c 30cd8af354e3a067a494196e11f6795fc4bc42f9
F src/vdbeaux.c 82e2c87e6028ce8b7ee5eb2e1787b941c757be10
F src/vdbemem.c 62fe89471b656a922e9879be005abf690509ead3
F src/where.c f4127cc2633ee0f74790ab7f09f5af832489e44e
F tclinstaller.tcl 36478c3bbfc5b93ceac42d94e3c736937b808432
@ -272,7 +272,7 @@ F www/tclsqlite.tcl e73f8f8e5f20e8277619433f7970060ab01088fc
F www/vdbe.tcl 095f106d93875c94b47367384ebc870517431618
F www/version3.tcl 092a01f5ef430d2c4acc0ae558d74c4bb89638a0
F www/whentouse.tcl 3e522a06ad41992023c80ca29a048ae2331ca5bd
P 0642d3e3d6636a5f922f75c05252c9c1372d3936
R ff98b5bb4857d018624b47a08a862aa2
U danielk1977
Z 0d80c050a8433757427c9d87cf25f2e2
P 12defe8cd6a0d7434c8f74b88169155d47299079
R 10797ec718abc66577c37fb254251e5c
U drh
Z 3208deb2a90b07f23b987f55fb0e2b1e

2
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@ -1 +1 @@
12defe8cd6a0d7434c8f74b88169155d47299079
db36773830cc81c38b78d1776a495d49475523be

11
src/vdbeaux.c
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@ -1500,11 +1500,12 @@ u32 sqlite3VdbeSerialType(Mem *pMem){
/* Figure out whether to use 1, 2, 4, 6 or 8 bytes. */
# define MAX_6BYTE ((((i64)0x00010000)<<32)-1)
i64 i = pMem->i;
if( i>=-127 && i<=127 ) return 1;
if( i>=-32767 && i<=32767 ) return 2;
if( i>=-8388607 && i<=8388607 ) return 3;
if( i>=-2147483647 && i<=2147483647 ) return 4;
if( i>=-MAX_6BYTE && i<=MAX_6BYTE ) return 5;
u64 u = i<0 ? -i : i;
if( u<=127 ) return 1;
if( u<=32767 ) return 2;
if( u<=8388607 ) return 3;
if( u<=2147483647 ) return 4;
if( u<=MAX_6BYTE ) return 5;
return 6;
}
if( flags&MEM_Real ){