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Overview
| Comment: | Deploy the sqlite3Strlen30NN() function (argument guaranteed to be non-NULL) for a small performance improvement. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
4a6ad5190b62020d97a7de02c801544f |
| User & Date: | drh 2018-10-31 20:52:00 |
Context
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2018-11-02
| ||
| 17:38 | Enhance triggers so that they can use table-valued-functions that exist in schemas outside of the schema in which the trigger is defined. check-in: 1fa74930 user: drh tags: trunk | |
|
2018-10-31
| ||
| 20:52 | Deploy the sqlite3Strlen30NN() function (argument guaranteed to be non-NULL) for a small performance improvement. check-in: 4a6ad519 user: drh tags: trunk | |
| 19:01 | Add support for the SQLITE_PREPARE_NORMALIZED flag and the sqlite3_normalized_sql() when compiling with SQLITE_ENABLE_NORMALIZE. Also remove unnecessary whitespace from Makefiles. check-in: 790ea39a user: drh tags: trunk | |
Changes
Changes to src/expr.c.
1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 |
** This function returns the space in bytes required to store the copy
** of the Expr structure and a copy of the Expr.u.zToken string (if that
** string is defined.)
*/
static int dupedExprNodeSize(Expr *p, int flags){
int nByte = dupedExprStructSize(p, flags) & 0xfff;
if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){
nByte += sqlite3Strlen30(p->u.zToken)+1;
}
return ROUND8(nByte);
}
/*
** Return the number of bytes required to create a duplicate of the
** expression passed as the first argument. The second argument is a
|
| |
1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 |
** This function returns the space in bytes required to store the copy
** of the Expr structure and a copy of the Expr.u.zToken string (if that
** string is defined.)
*/
static int dupedExprNodeSize(Expr *p, int flags){
int nByte = dupedExprStructSize(p, flags) & 0xfff;
if( !ExprHasProperty(p, EP_IntValue) && p->u.zToken ){
nByte += sqlite3Strlen30NN(p->u.zToken)+1;
}
return ROUND8(nByte);
}
/*
** Return the number of bytes required to create a duplicate of the
** expression passed as the first argument. The second argument is a
|
Changes to src/insert.c.
142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 |
zColAff[i] = pTab->aCol[i].affinity;
}
do{
zColAff[i--] = 0;
}while( i>=0 && zColAff[i]==SQLITE_AFF_BLOB );
pTab->zColAff = zColAff;
}
i = sqlite3Strlen30(zColAff);
if( i ){
if( iReg ){
sqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i);
}else{
sqlite3VdbeChangeP4(v, -1, zColAff, i);
}
}
|
> | |
142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 |
zColAff[i] = pTab->aCol[i].affinity;
}
do{
zColAff[i--] = 0;
}while( i>=0 && zColAff[i]==SQLITE_AFF_BLOB );
pTab->zColAff = zColAff;
}
assert( zColAff!=0 );
i = sqlite3Strlen30NN(zColAff);
if( i ){
if( iReg ){
sqlite3VdbeAddOp4(v, OP_Affinity, iReg, i, 0, zColAff, i);
}else{
sqlite3VdbeChangeP4(v, -1, zColAff, i);
}
}
|
Changes to src/sqliteInt.h.
3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 |
int sqlite3IsIdChar(u8); /* ** Internal function prototypes */ int sqlite3StrICmp(const char*,const char*); int sqlite3Strlen30(const char*); char *sqlite3ColumnType(Column*,char*); #define sqlite3StrNICmp sqlite3_strnicmp int sqlite3MallocInit(void); void sqlite3MallocEnd(void); void *sqlite3Malloc(u64); void *sqlite3MallocZero(u64); |
> |
3661 3662 3663 3664 3665 3666 3667 3668 3669 3670 3671 3672 3673 3674 3675 |
int sqlite3IsIdChar(u8);
/*
** Internal function prototypes
*/
int sqlite3StrICmp(const char*,const char*);
int sqlite3Strlen30(const char*);
#define sqlite3Strlen30NN(C) (strlen(C)&0x3fffffff)
char *sqlite3ColumnType(Column*,char*);
#define sqlite3StrNICmp sqlite3_strnicmp
int sqlite3MallocInit(void);
void sqlite3MallocEnd(void);
void *sqlite3Malloc(u64);
void *sqlite3MallocZero(u64);
|
Changes to src/vdbemem.c.
373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 |
*/
if( fg & MEM_Int ){
sqlite3_snprintf(nByte, pMem->z, "%lld", pMem->u.i);
}else{
assert( fg & MEM_Real );
sqlite3_snprintf(nByte, pMem->z, "%!.15g", pMem->u.r);
}
pMem->n = sqlite3Strlen30(pMem->z);
pMem->enc = SQLITE_UTF8;
pMem->flags |= MEM_Str|MEM_Term;
if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real);
sqlite3VdbeChangeEncoding(pMem, enc);
return SQLITE_OK;
}
|
> | |
373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 |
*/
if( fg & MEM_Int ){
sqlite3_snprintf(nByte, pMem->z, "%lld", pMem->u.i);
}else{
assert( fg & MEM_Real );
sqlite3_snprintf(nByte, pMem->z, "%!.15g", pMem->u.r);
}
assert( pMem->z!=0 );
pMem->n = sqlite3Strlen30NN(pMem->z);
pMem->enc = SQLITE_UTF8;
pMem->flags |= MEM_Str|MEM_Term;
if( bForce ) pMem->flags &= ~(MEM_Int|MEM_Real);
sqlite3VdbeChangeEncoding(pMem, enc);
return SQLITE_OK;
}
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