External table description (QAQQ3004) - Temporary table

• F1 - Query contains grouping columns (Group By) from more than one table, or contains grouping columns from a secondary table of a join query that cannot be reordered.
• F2 - Query contains ordering columns (Order By) from more than one table, or contains ordering columns from a secondary table of a join query that cannot be reordered.
• F3 - The grouping and ordering columns are not compatible.
• F4 - DISTINCT was specified for the query.
• F5 - UNION was specified for the query.
• F6 - Query had to be implemented using a sort. Key length of more than 2000 bytes or more than 120 columns specified for ordering.
• F7 - Query optimizer chose to use a sort rather than an index to order the results of the query.
• F8 - Perform specified row selection to minimize I/O wait time.
• F9 - The query optimizer chose to use a hashing algorithm rather than an access path to perform the grouping for the query.
• FA - The query contains a join condition that requires a temporary file.
• FB - The query optimizer creates a run-time temporary file in order to implement certain correlated group by queries.
• FC - The query contains grouping fields and there is a read trigger on at least one of the physical files in the query.
• FD - The query optimizer creates a runtime temporary file for a static-cursor request.
• H1 - Table is a join logical file and its join type does not match the join type specified in the query.
• H2 - Format specified for the logical table references more than one base table.
• H3 - Table is a complex SQL view requiring a temporary results of the SQL view.
• H4 - For an update-capable query, a subselect references a column in this table which matches one of the columns being updated.
• H5 - For an update-capable query, a subselect references an SQL view which is based on the table being updated.
• H6 - For a delete-capable query, a subselect references either the table from which rows are to be deleted, an SQL view, or an index based on the table from which rows are to be deleted.
• H7 - A user-defined table function was materialized.

Y - Yes
N - No