Index: src/expr.c ================================================================== --- src/expr.c +++ src/expr.c @@ -237,15 +237,10 @@ if( sqlite3IsNumericAffinity(aff1) || sqlite3IsNumericAffinity(aff2) ){ return SQLITE_AFF_NUMERIC; }else{ return SQLITE_AFF_BLOB; } - }else if( aff1<=SQLITE_AFF_NONE && aff2<=SQLITE_AFF_NONE ){ - /* Neither side of the comparison is a column. Compare the - ** results directly. - */ - return SQLITE_AFF_BLOB; }else{ /* One side is a column, the other is not. Use the columns affinity. */ assert( aff1<=SQLITE_AFF_NONE || aff2<=SQLITE_AFF_NONE ); return (aff1<=SQLITE_AFF_NONE ? aff2 : aff1) | SQLITE_AFF_NONE; } @@ -278,18 +273,17 @@ ** if the index with affinity idx_affinity may be used to implement ** the comparison in pExpr. */ int sqlite3IndexAffinityOk(Expr *pExpr, char idx_affinity){ char aff = comparisonAffinity(pExpr); - switch( aff ){ - case SQLITE_AFF_BLOB: - return 1; - case SQLITE_AFF_TEXT: - return idx_affinity==SQLITE_AFF_TEXT; - default: - return sqlite3IsNumericAffinity(idx_affinity); - } + if( aff