presto-main/src/main/java/io/prestosql/sql/planner/iterative/rule/PushLimitIntoTableScan.java/PushLimitIntoTableScan/PushLimitIntoTableScan
class PushLimitIntoTableScan:    public PushLimitIntoTableScan(Metadata metadata)
    {
        this.metadata = metadata;
    }