456 Expr *sqlite3VectorFieldSubexpr(Expr *pVector, int i){  in sqlite3VectorFieldSubexpr()  argument
457   assert( i<sqlite3ExprVectorSize(pVector) || pVector->op==TK_ERROR );  in sqlite3VectorFieldSubexpr()
458   if( sqlite3ExprIsVector(pVector) ){  in sqlite3VectorFieldSubexpr()
459     assert( pVector->op2==0 || pVector->op==TK_REGISTER );  in sqlite3VectorFieldSubexpr()
460     if( pVector->op==TK_SELECT || pVector->op2==TK_SELECT ){  in sqlite3VectorFieldSubexpr()
461       assert( ExprUseXSelect(pVector) );  in sqlite3VectorFieldSubexpr()
462       return pVector->x.pSelect->pEList->a[i].pExpr;  in sqlite3VectorFieldSubexpr()
464       assert( ExprUseXList(pVector) );  in sqlite3VectorFieldSubexpr()
465       return pVector->x.pList->a[i].pExpr;  in sqlite3VectorFieldSubexpr()
468   return pVector;  in sqlite3VectorFieldSubexpr()
494   Expr *pVector,       /* The vector.  List of expressions or a sub-SELECT */  in sqlite3ExprForVectorField()  argument
499   if( pVector->op==TK_SELECT ){  in sqlite3ExprForVectorField()
500     assert( ExprUseXSelect(pVector) );  in sqlite3ExprForVectorField()
521       pRet->pLeft = pVector;  in sqlite3ExprForVectorField()
524     if( pVector->op==TK_VECTOR ){  in sqlite3ExprForVectorField()
526       assert( ExprUseXList(pVector) );  in sqlite3ExprForVectorField()
527       ppVector = &pVector->x.pList->a[iField].pExpr;  in sqlite3ExprForVectorField()
528       pVector = *ppVector;  in sqlite3ExprForVectorField()
532         return pVector;  in sqlite3ExprForVectorField()
535     pRet = sqlite3ExprDup(pParse->db, pVector, 0);  in sqlite3ExprForVectorField()
578   Expr *pVector,                  /* Vector to extract element from */  in exprVectorRegister()  argument
584   u8 op = pVector->op;  in exprVectorRegister()
587     *ppExpr = sqlite3VectorFieldSubexpr(pVector, iField);  in exprVectorRegister()
588     return pVector->iTable+iField;  in exprVectorRegister()
591     assert( ExprUseXSelect(pVector) );  in exprVectorRegister()
592     *ppExpr = pVector->x.pSelect->pEList->a[iField].pExpr;  in exprVectorRegister()
596     assert( ExprUseXList(pVector) );  in exprVectorRegister()
597     *ppExpr = pVector->x.pList->a[iField].pExpr;  in exprVectorRegister()