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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
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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.
375 375 break; 376 376 } 377 377 case SQLITE_INTEGER: { 378 378 sqlite3_int64 iVal = sqlite3_value_int64(pValue); 379 379 sqlite3_uint64 uVal; 380 380 if( iVal<0 ){ 381 381 if( iVal==0xffffffffffffffffLL ) return SQLITE_ERROR; 382 - uVal = -iVal; 382 + uVal = *(sqlite3_uint64*)&iVal; 383 383 eType = LSM1_TYPE_NEGATIVE; 384 384 }else{ 385 385 uVal = iVal; 386 386 eType = LSM1_TYPE_POSITIVE; 387 387 } 388 388 pSpace[0] = eType; 389 389 *ppKey = pSpace; ................................................................................ 420 420 ){ 421 421 if( pVal[0]==LSM1_TYPE_BLOB ){ 422 422 sqlite3_result_blob(ctx, (const void*)&pVal[1],nVal-1, 423 423 SQLITE_TRANSIENT); 424 424 }else if( pVal[0]==LSM1_TYPE_TEXT ){ 425 425 sqlite3_result_text(ctx, (const char*)&pVal[1],nVal-1, 426 426 SQLITE_TRANSIENT); 427 - }else if( nVal>=2 && nVal<=9 && 427 + }else if( nVal>=2 && nVal<=10 && 428 428 (pVal[0]==LSM1_TYPE_POSITIVE || pVal[0]==LSM1_TYPE_NEGATIVE) 429 429 ){ 430 - sqlite3_uint64 uVal = 0; 431 - lsm1GetVarint64(pVal+1, nVal-1, &uVal); 432 - if( pVal[0]==LSM1_TYPE_NEGATIVE ){ 433 - sqlite3_result_int64(ctx, -(sqlite3_int64)uVal); 434 - }else{ 435 - sqlite3_result_int64(ctx, (sqlite3_int64)uVal); 436 - } 430 + sqlite3_int64 iVal; 431 + lsm1GetVarint64(pVal+1, nVal-1, (sqlite3_uint64*)&iVal); 432 + sqlite3_result_int64(ctx, iVal); 437 433 } 438 434 } 439 435 break; 440 436 } 441 437 case LSM1_COLUMN_BLOBVALUE: { 442 438 const void *pVal; 443 439 int nVal;