Step information when the query is broken into multiple steps

   ID    Name         Type              Description
  4120  QVTSTP       BIN(32)           Total number of steps.
  4122  QVNSTP       BIN(32)           Step number for current subselect.
  4124  QVSTPY       CHAR(2)           Type of step processing. Possible values:
                                       HJ - Hash Join
                                       LC - LCP (distributed) query
                                       VM - View Materialization
                                       LJ - Full Left Outer Join
                                       BB - Subquery Temporary
  4130  QVUCNT       BIN(32)           Unique count of original query.
  4132  QVQDTN       BIN(32)           Subselect number of original query.
  4134  QVQDTL       BIN(32)           Subselect level of original query.
  4136  QVMATN       BIN(32)           Materialized subselect number of original
                                       query.
  4138  QVMATL       BIN(32)           Materialized subselect level of original
                                       query.