diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/pragma.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/pragma.c b/src/pragma.c index 522a12d33..01c2d486e 100644 --- a/src/pragma.c +++ b/src/pragma.c @@ -1987,6 +1987,23 @@ void sqlite3Pragma( jmp4 = integrityCheckResultRow(v); sqlite3VdbeJumpHere(v, jmp2); + /* The OP_IdxRowid opcode is an optimized version of OP_Column + ** that extracts the rowid off the end of the index record. + ** But it only works correctly if index record does not have + ** any extra bytes at the end. Verify that this is the case. */ + if( HasRowid(pTab) ){ + int jmp7; + sqlite3VdbeAddOp2(v, OP_IdxRowid, iIdxCur+j, 3); + jmp7 = sqlite3VdbeAddOp3(v, OP_Eq, 3, 0, r1+pIdx->nColumn-1); + VdbeCoverage(v); + sqlite3VdbeLoadString(v, 3, + "rowid not at end-of-record for row "); + sqlite3VdbeAddOp3(v, OP_Concat, 7, 3, 3); + sqlite3VdbeLoadString(v, 4, " of index "); + sqlite3VdbeGoto(v, jmp5-1); + sqlite3VdbeJumpHere(v, jmp7); + } + /* Any indexed columns with non-BINARY collations must still hold ** the exact same text value as the table. */ label6 = 0; |