presto-accumulo/src/main/java/io/prestosql/plugin/accumulo/index/ColumnCardinalityCache.java/ColumnCardinalityCache/equals
class ColumnCardinalityCache:        @Override
        public boolean equals(Object obj)
        {
            if (this == obj) {
                return true;
            }

            if ((obj == null) || (getClass() != obj.getClass())) {
                return false;
            }

            CacheKey other = (CacheKey) obj;
            return Objects.equals(this.schema, other.schema)
                    && Objects.equals(this.table, other.table)
                    && Objects.equals(this.family, other.family)
                    && Objects.equals(this.qualifier, other.qualifier)
                    && Objects.equals(this.range, other.range);
        }