Function removeFilters

edgraph/access.go:1382–1404

(f *dql.FilterTree, blockedPreds map[string]struct{})

}

func removeFilters(f *dql.FilterTree, blockedPreds map[string]struct{}) *dql.FilterTree {
	if f == nil {
		return nil
	}
	if f.Func != nil && len(f.Func.Attr) > 0 {
		if _, ok := blockedPreds[f.Func.Attr]; ok {
			return nil
		}
	}

	filteredChildren := f.Child[:0]
	for _, ch := range f.Child {
		child := removeFilters(ch, blockedPreds)
		if child != nil {
			filteredChildren = append(filteredChildren, child)
		}
	}
	if len(filteredChildren) != len(f.Child) && (f.Op == "AND" || f.Op == "NOT") {
		return nil
	}
	f.Child = filteredChildren
	return f
}

func removeGroupBy(gbAttrs []dql.GroupByAttr,
	blockedPreds map[string]struct{}) []dql.GroupByAttr {