diff options
Diffstat (limited to 'src/select.c')
| -rw-r--r-- | src/select.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/select.c b/src/select.c index f2d44bf36..6a4d0397f 100644 --- a/src/select.c +++ b/src/select.c @@ -1377,12 +1377,18 @@ static void selectInnerLoop( ** case the order does matter */ pushOntoSorter( pParse, pSort, p, regResult, regOrig, nResultCol, nPrefixReg); + pDest->iSDParm2 = 0; /* Signal that any Bloom filter is unpopulated */ }else{ int r1 = sqlite3GetTempReg(pParse); assert( sqlite3Strlen30(pDest->zAffSdst)==nResultCol ); sqlite3VdbeAddOp4(v, OP_MakeRecord, regResult, nResultCol, r1, pDest->zAffSdst, nResultCol); sqlite3VdbeAddOp4Int(v, OP_IdxInsert, iParm, r1, regResult, nResultCol); + if( pDest->iSDParm2 ){ + sqlite3VdbeAddOp4Int(v, OP_FilterAdd, pDest->iSDParm2, 0, + regResult, nResultCol); + ExplainQueryPlan((pParse, 0, "CREATE BLOOM FILTER")); + } sqlite3ReleaseTempReg(pParse, r1); } break; @@ -3316,6 +3322,11 @@ static int generateOutputSubroutine( r1, pDest->zAffSdst, pIn->nSdst); sqlite3VdbeAddOp4Int(v, OP_IdxInsert, pDest->iSDParm, r1, pIn->iSdst, pIn->nSdst); + if( pDest->iSDParm2>0 ){ + sqlite3VdbeAddOp4Int(v, OP_FilterAdd, pDest->iSDParm2, 0, + pIn->iSdst, pIn->nSdst); + ExplainQueryPlan((pParse, 0, "CREATE BLOOM FILTER")); + } sqlite3ReleaseTempReg(pParse, r1); break; } @@ -5066,7 +5077,8 @@ static int pushDownWindowCheck(Parse *pParse, Select *pSubq, Expr *pExpr){ ** ** NAME AMBIGUITY ** -** This optimization is called the "WHERE-clause push-down optimization". +** This optimization is called the "WHERE-clause push-down optimization" +** or sometimes the "predicate push-down optimization". ** ** Do not confuse this optimization with another unrelated optimization ** with a similar name: The "MySQL push-down optimization" causes WHERE @@ -8500,7 +8512,10 @@ int sqlite3Select( if( iOrderByCol ){ Expr *pX = p->pEList->a[iOrderByCol-1].pExpr; Expr *pBase = sqlite3ExprSkipCollateAndLikely(pX); - if( ALWAYS(pBase!=0) && pBase->op!=TK_AGG_COLUMN ){ + if( ALWAYS(pBase!=0) + && pBase->op!=TK_AGG_COLUMN + && pBase->op!=TK_REGISTER + ){ sqlite3ExprToRegister(pX, iAMem+j); } } |