| QQKEY |
Join column (unique per query) used to link
rows for a single query together |
| QQTIME |
Time row was created |
| QQQDTN |
QDT number (unique per QDT) |
| QQQDTL |
RQDT subquery nested level relational database
name |
| QQMATN |
Materialized view QDT number |
| QQMATL |
Materialized view nested level |
| QQTTIM |
Sort time |
| QQRSS |
Number of rows selected or sorted |
| QQSIZ |
Size of sort space |
| QQPSIZ |
Pool size |
| QQPID |
Pool id |
| QQIBUF |
Internal sort buffer length |
| QQEBUF |
External sort buffer length |
| QQRCOD |
Reason code - 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.
- FC - The query contains grouping fields and there is a read trigger
on at least one of the physical files in the query.
|
| QQC11 |
Reserved |
| QQC12 |
Reserved |
| QQC21 |
Reserved |
| QQC22 |
Reserved |
| QQI1 |
Reserved |
| QQI2 |
Reserved |
| QQC301 |
Reserved |
| QQC302 |
Reserved |
| QQ1000 |
Reserved |