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Overview
| Comment: | LSM1: Fix the integer key encoding so that negative keys are in numeric order. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | lsm-vtab |
| Files: | files | file ages | folders |
| SHA1: |
f92dc4187f6046fcb3ab63449efd7f37 |
| User & Date: | drh 2016-02-24 13:35:22 |
Context
|
2017-06-01
| ||
| 16:13 | Add test code for LSM to the ext/lsm1/lsm-test directory. check-in: bb7436e8 user: dan tags: lsm-vtab | |
|
2016-02-24
| ||
| 13:35 | LSM1: Fix the integer key encoding so that negative keys are in numeric order. check-in: f92dc418 user: drh tags: lsm-vtab | |
|
2016-02-23
| ||
| 01:41 | Merge trunk enhancements. check-in: fac4f4ec user: drh tags: lsm-vtab | |
Changes
Changes to ext/lsm1/lsm_vtab.c.
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break;
}
case SQLITE_INTEGER: {
sqlite3_int64 iVal = sqlite3_value_int64(pValue);
sqlite3_uint64 uVal;
if( iVal<0 ){
if( iVal==0xffffffffffffffffLL ) return SQLITE_ERROR;
uVal = -iVal;
eType = LSM1_TYPE_NEGATIVE;
}else{
uVal = iVal;
eType = LSM1_TYPE_POSITIVE;
}
pSpace[0] = eType;
*ppKey = pSpace;
................................................................................
){
if( pVal[0]==LSM1_TYPE_BLOB ){
sqlite3_result_blob(ctx, (const void*)&pVal[1],nVal-1,
SQLITE_TRANSIENT);
}else if( pVal[0]==LSM1_TYPE_TEXT ){
sqlite3_result_text(ctx, (const char*)&pVal[1],nVal-1,
SQLITE_TRANSIENT);
}else if( nVal>=2 && nVal<=9 &&
(pVal[0]==LSM1_TYPE_POSITIVE || pVal[0]==LSM1_TYPE_NEGATIVE)
){
sqlite3_uint64 uVal = 0;
lsm1GetVarint64(pVal+1, nVal-1, &uVal);
if( pVal[0]==LSM1_TYPE_NEGATIVE ){
sqlite3_result_int64(ctx, -(sqlite3_int64)uVal);
}else{
sqlite3_result_int64(ctx, (sqlite3_int64)uVal);
}
}
}
break;
}
case LSM1_COLUMN_BLOBVALUE: {
const void *pVal;
int nVal;
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break;
}
case SQLITE_INTEGER: {
sqlite3_int64 iVal = sqlite3_value_int64(pValue);
sqlite3_uint64 uVal;
if( iVal<0 ){
if( iVal==0xffffffffffffffffLL ) return SQLITE_ERROR;
uVal = *(sqlite3_uint64*)&iVal;
eType = LSM1_TYPE_NEGATIVE;
}else{
uVal = iVal;
eType = LSM1_TYPE_POSITIVE;
}
pSpace[0] = eType;
*ppKey = pSpace;
................................................................................
){
if( pVal[0]==LSM1_TYPE_BLOB ){
sqlite3_result_blob(ctx, (const void*)&pVal[1],nVal-1,
SQLITE_TRANSIENT);
}else if( pVal[0]==LSM1_TYPE_TEXT ){
sqlite3_result_text(ctx, (const char*)&pVal[1],nVal-1,
SQLITE_TRANSIENT);
}else if( nVal>=2 && nVal<=10 &&
(pVal[0]==LSM1_TYPE_POSITIVE || pVal[0]==LSM1_TYPE_NEGATIVE)
){
sqlite3_int64 iVal;
lsm1GetVarint64(pVal+1, nVal-1, (sqlite3_uint64*)&iVal);
sqlite3_result_int64(ctx, iVal);
}
}
break;
}
case LSM1_COLUMN_BLOBVALUE: {
const void *pVal;
int nVal;
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