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Overview
| Comment: | Bugfix for row format. (CVS 1391) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
c1745f47ae6597953426c852559c3ba5 |
| User & Date: | danielk1977 2004-05-18 01:31:14 |
Context
|
2004-05-18
| ||
| 09:58 | Fix many problems with manifest types and column affinity. Most things are working now. (CVS 1392) check-in: a62872aa user: danielk1977 tags: trunk | |
| 01:31 | Bugfix for row format. (CVS 1391) check-in: c1745f47 user: danielk1977 tags: trunk | |
| 01:23 | Omit the '\0' at the end of UTF-8 strings on disk (it is implied). Also don't store the number of rows at the beginning of each table record. (CVS 1390) check-in: 202a470f user: danielk1977 tags: trunk | |
Changes
Changes to src/vdbeaux.c.
1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 .... 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 .... 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 |
if( i>=-2147483647 && i<=2147483647 ) return 3;
return 4;
}
if( flags&MEM_Real ){
return 5;
}
if( flags&MEM_Str ){
return (pMem->n*2 + 13);
}
if( flags&MEM_Blob ){
return (pMem->n*2 + 12);
}
return 0;
}
................................................................................
memcpy(&pMem->r, buf, 8);
pMem->flags = MEM_Real;
return 8;
}
/* String or blob */
assert( serial_type>=12 );
if( serial_type&0x01 ){
pMem->flags = MEM_Str;
}else{
pMem->flags = MEM_Blob;
}
len = sqlite3VdbeSerialTypeLen(serial_type);
pMem->n = len;
if( len>NBFS ){
pMem->z = sqliteMallocRaw( len );
if( !pMem->z ){
return -1;
}
pMem->flags |= MEM_Dyn;
}else{
pMem->z = pMem->zShort;
pMem->flags |= MEM_Short;
}
memcpy(pMem->z, buf, len);
return len;
}
/*
** Compare the values contained by the two memory cells, returning
** negative, zero or positive if pMem1 is less than, equal to, or greater
................................................................................
}
if( offset2<nKey2 ){
return -1;
}
return 0;
}
/*
** pCur points at an index entry. Read the rowid (varint occuring at
** the end of the entry and store it in *rowid. Return SQLITE_OK if
** everything works, or an error code otherwise.
*/
int sqlite3VdbeIdxRowid(BtCursor *pCur, i64 *rowid){
|
> > > > > | > > > < > | < | > > > > > > > > > > > > > > > > > > > > > > > > > > > > |
1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 .... 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 .... 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 |
if( i>=-2147483647 && i<=2147483647 ) return 3;
return 4;
}
if( flags&MEM_Real ){
return 5;
}
if( flags&MEM_Str ){
/* We assume that the string is NULL-terminated. We don't store the
** NULL-terminator - it is implied by the string storage class.
*/
assert( pMem->n>0 );
assert( pMem->z[pMem->n-1]=='\0' );
return (pMem->n*2 + 11); /* (pMem->n-1)*2 + 13 */
}
if( flags&MEM_Blob ){
return (pMem->n*2 + 12);
}
return 0;
}
................................................................................
memcpy(&pMem->r, buf, 8);
pMem->flags = MEM_Real;
return 8;
}
/* String or blob */
assert( serial_type>=12 );
len = sqlite3VdbeSerialTypeLen(serial_type);
if( serial_type&0x01 ){
pMem->flags = MEM_Str;
pMem->n = len+1;
}else{
pMem->flags = MEM_Blob;
pMem->n = len;
}
if( (pMem->n)>NBFS ){
pMem->z = sqliteMallocRaw( pMem->n );
if( !pMem->z ){
return -1;
}
pMem->flags |= MEM_Dyn;
}else{
pMem->z = pMem->zShort;
pMem->flags |= MEM_Short;
}
memcpy(pMem->z, buf, len);
if( pMem->flags&MEM_Str ){
pMem->z[len] = '\0';
}
return len;
}
/*
** Compare the values contained by the two memory cells, returning
** negative, zero or positive if pMem1 is less than, equal to, or greater
................................................................................
}
if( offset2<nKey2 ){
return -1;
}
return 0;
}
/*
** This function compares the two table row records specified by
** {nKey1, pKey1} and {nKey2, pKey2}, returning a negative, zero
** or positive integer if {nKey1, pKey1} is less than, equal to or
** greater than {nKey2, pKey2}.
**
** This function is pretty inefficient and will probably be replace
** by something else in the near future. It is currently required
** by compound SELECT operators.
*/
int sqlite3VdbeRowCompare(
void *userData,
int nKey1, const void *pKey1,
int nKey2, const void *pKey2
){
int offset1 = 0;
int offset2 = 0;
const unsigned char *aKey1 = (const unsigned char *)pKey1;
const unsigned char *aKey2 = (const unsigned char *)pKey2;
assert( userData==0 );
}
/*
** pCur points at an index entry. Read the rowid (varint occuring at
** the end of the entry and store it in *rowid. Return SQLITE_OK if
** everything works, or an error code otherwise.
*/
int sqlite3VdbeIdxRowid(BtCursor *pCur, i64 *rowid){
|