lib/sqlite/sqlite3.c

4670 ** that collation is no longer usable.
5376 ** aConstraint[].iColumn.)^  ^(aConstraint[].usable is TRUE if the
5378 ** is usable) and false if it cannot.)^
5416      unsigned char usable;     /* True if this constraint is usable */
16646   u8 *zByte;         /* Memory usable by this allocator */
36769   /* Step 5. If a usable page buffer has still not been found,
47432 ** The max embedded payload fraction is the amount of the total usable
47766   u32 usableSize;       /* Number of usable bytes on each page */
47887 ** database page. The first argument to each is the number of usable
49330   int usableSize;            /* Number of usable bytes on a page */
49654     int usableSize;    /* Amount of usable space on each page */
49733     ** the cell-content area. If this is greater than the usable-size
71833 ** usable by indices within the WHERE clause processing logic.
85931         if( i==nCol ) break;      /* pIdx is usable */
100838 ** IMPLEMENTATION-OF: R-59926-26393 To be usable by an index a term must be
102092        p->aConstraint[i].usable);
102155   /* Search the WHERE clause terms for a usable WO_OR term. */
102610     if( !p->aConstraint[i].usable && p->aConstraintUsage[i].argvIndex>0 ){
102687   /* Set the aConstraint[].usable fields and initialize all
102690   ** aConstraint[].usable is true for constraints where the right-hand
102704   ** join might be different so we have to recompute the usable flag
102712     pIdxCons->usable = (pTerm->prereqRight&notReady) ? 0 : 1;
104700     /* Case 5:  There is no usable index.  We must do a complete
115449     if( pCons->usable==0 ) continue;
119217     if( pInfo->aConstraint[i].usable && pInfo->aConstraint[i].iColumn==0 ){
128396     if( p->usable && p->iColumn==0 && p->op==SQLITE_INDEX_CONSTRAINT_EQ ){
128416     if( p->usable && (p->iColumn>0 || p->op==SQLITE_INDEX_CONSTRAINT_MATCH) ){