Database Management Technology 
The qsf_pool table contains QSF pool size and usage statistics. One row is returned for each database server in the current IMA management domain. Delta columns represent counter changes in the last interval.
| Attribute Name | Key | Datatype | Description |
| timestamp | 0 | date | Date and time the data was collected |
| delta_seconds | 0 | integer4 | Elapsed time (seconds) since the previous refresh. |
| server | 1 | varchar(64) | Database server name. |
| buckets_used | 0 | integer4 | Count of hash buckets with at least one entry. |
| bucket_max_objs | 0 | integer4 | Maximum number of objects in any hash bucket. |
| decay_factor | 0 | integer4 | Object decay factor. |
| memory_left | 0 | integer4 | Amount of un-allocated pool memory in bytes. |
| memofy_left_d | 0 | integer4 | |
| memory_total | 0 | integer4 | Total pool size in bytes. |
| percent_used | 0 | float4 | |
| max_master_objs | 0 | integer4 | Maximum number of master objects in the pool. |
| max_named_objs | 0 | integer4 | Maximum number of named objects in the pool. |
| max_req_size | 0 | integer4 | Largest pool memory request since server startup. |
| max_stored_size | 0 | integer4 | Largest pool object since server startup. |
| max_unnamed_objs | 0 | integer4 | Highwater mark for un-named pool objects. |
| max_buckets | 0 | integer4 | Highwater mark for buckets with at least one object. |
| max_objects | 0 | integer4 | Highwater mark for pool objects. |
| max_objects_d | 0 | integer4 | |
| max_sessions | 0 | integer4 | Highwater mark for sessions with pool objects. |
| max_sessions_d | 0 | integer4 | |
| named_requests | 0 | integer4 | Count of named object requests. |
| bucket_count | 0 | integer4 | Number of buckets in the repeat query hash table. |
| no_destroyed | 0 | integer4 | Count of objects destroyed. |
| no_index | 0 | integer4 | Current number of named objects. |
| named_objs | 0 | integer4 | Current count of named pool objects. |
| named_objs_d | 0 | integer4 | |
| unnamed_objs | 0 | integer4 | Current count of un-named pool objects. |
| unnamed_objs_d | 0 | integer4 | |
| total_objs | 0 | integer4 | Current object count. |
| total_objs_d | 0 | integer4 | |
| session_count | 0 | integer4 | Number of sessions currently active. |
| session_count_d | 0 | integer4 |
