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Factor common code for generating index keys into a procedure. Other

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speed improvements and bug fixes. (CVS 1487)

FossilOrigin-Name: 6661bb5f9c1692f94b8b7d900b6be07f027e6324
This commit is contained in:
drh
2004-05-28 16:00:21 +00:00
parent 76d505baad
commit 51846b56ed
10 changed files with 91 additions and 71 deletions
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9
src/vdbeaux.c
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@@ -1219,6 +1219,13 @@ u32 sqlite3VdbeSerialType(Mem *pMem){
*/
int sqlite3VdbeSerialTypeLen(u32 serial_type){
assert( serial_type!=0 );
if( serial_type>6 ){
return (serial_type-12)/2;
}else{
static u8 aSize[] = { 0, 1, 2, 4, 8, 8, 0, };
return aSize[serial_type];
}
#if 0
switch(serial_type){
case 6: return 0; /* NULL */
case 1: return 1; /* 1 byte integer */
@@ -1229,6 +1236,7 @@ int sqlite3VdbeSerialTypeLen(u32 serial_type){
}
assert( serial_type>=12 );
return ((serial_type-12)>>1); /* text or blob */
#endif
}
/*
@@ -1329,7 +1337,6 @@ int sqlite3VdbeSerialGet(
}else{
pMem->flags = MEM_Blob | MEM_Ephem;
}
sqlite3VdbeMemMakeWriteable(pMem);
return len;
}