We expect assigns_to to fit into the stmts array (size OPT_STMTS) (I think). Added assert to help Coverity.
We expect assigns_to to fit into the stmts array (size OPT_STMTS) (I think).
Added assert to help Coverity.

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb