> The above process can be performed without tool support, but its clear > that further automation will help greatly here. I foresee that the > development of both server-side and tools will take more than one > release. Discussion of tool support can begin once we have agreed > server-side capability.
If it came to automated tools, wouldn't fit in this discussion to give some performance requirement limits to the RECOMMEND tool ? In a workload not all queries are real time or high priority, and such a lesser impact index can help enough sometimes to meet the requirements, compared to a high impact index which would make the query fly. Example: inserting in a table must be real time, reporting can be taken offline... So it would be nice to have a recommendation tool which can take into account the performance requirements of the individual queries, possibly making the right compromises to meat all requirements for all queries. Cheers, Csaba. ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match