contrib/sqlite3/sqlite3.c

7908 ** The colUsed field indicates which columns of the virtual table may be
7912 ** the corresponding bit is set within the colUsed mask if the column may be
7914 ** to the right of the first 63 is required, then bit 63 of colUsed is also
7916 ** (colUsed & ((sqlite3_uint64)1 << (iCol>=63 ? 63 : iCol))) evaluates to
8007   sqlite3_uint64 colUsed;    /* Input: Mask of columns used by statement */
18432   Bitmask colUsed;  /* Bit N (1<<N) set if column N of pTab is used */
18459 ** In the colUsed field, the high-order bit (bit 63) is set if the table
29892            pItem->pTab->zName, pItem->pTab->nCol, pItem->pTab, pItem->colUsed);
98812 ** return the appropriate colUsed mask.
99247   ** this fact in the pSrcList.a[].colUsed bitmask.  Column 0 causes
99251   ** The colUsed mask is an optimization used to help determine if an
99261     pMatch->colUsed |= sqlite3ExprColUsed(pExpr);
99317         pItem->colUsed = pTab->nCol>=64 ? ALLBITS : MASKBIT(pTab->nCol)-1;
99321         pItem->colUsed |= ((Bitmask)1)<<(iCol>=BMS ? BMS-1 : iCol);
102230     pNewItem->colUsed = pOldItem->colUsed;
103305           Bitmask colUsed;      /* Columns of the index used */
103322           colUsed = 0;   /* Columns of index used so far */
103340             if( mCol & colUsed ) break; /* Each column used only once */
103341             colUsed |= mCol;
103345           assert( i==nExpr || colUsed!=(MASKBIT(nExpr)-1) );
103346           if( colUsed==(MASKBIT(nExpr)-1) ){
113691 ** The colNotIdxed mask is AND-ed with the SrcList.a[].colUsed mask
134787 ** pSrcItem->colUsed mask.
134795   pItem->colUsed |= sqlite3ExprColUsed(pExpr);
134808   pSrcItem->colUsed = 0;
135445     /* Recompute the SrcList_item.colUsed masks for the flattened
137438     if( pItem->colUsed==0 && pItem->zName!=0 ){
140462   ** So reset the colUsed mask. Unless this is a virtual table. In that
140463   ** case, set all bits of the colUsed mask (to ensure that the virtual
140466   pTabList->a[0].colUsed = IsVirtual(pTab) ? ALLBITS : 0;
149054   int mxBitCol;               /* Maximum column in pSrc->colUsed */
149125   extraCols = pSrc->colUsed & (~idxCols | MASKBIT(BMS-1));
149132   if( pSrc->colUsed & MASKBIT(BMS-1) ){
149172   if( pSrc->colUsed & MASKBIT(BMS-1) ){
151413         m = pSrc->colUsed & pProbe->colNotIdxed;
151557   pIdxInfo->colUsed = (sqlite3_int64)pSrc->colUsed;
152890       if( pIdx->isCovering || (pItem->colUsed & pIdx->colNotIdxed)==0 ){
153499         Bitmask b = pTabItem->colUsed;
153515                             (const u8*)&pTabItem->colUsed, P4_INT64);
153567           u64 colUsed = 0;
153573             if( (pTabItem->colUsed & MASKBIT(jj))==0 ) continue;
153574             colUsed |= ((u64)1)<<(ii<63 ? ii : 63);
153577                                 (u8*)&colUsed, P4_INT64);