enable statistics for hive tables

Bug #1367398 reported by khaled Bouaziz
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Trafodion
New
Wishlist
Barry Fritchman

Bug Description

the CIF heuristic relies on the statistics to decide which row format (aligned or exploded) to use.
we also need to be able to get the average varchar size for each varchar field.

the statistics information will allow cif to deicide the row format correctly and may have a tremendous impact on performance

Tags: sql-cmp
Revision history for this message
Anoop Sharma (anoop-sharma) wrote :

This is an enhancement request which should be filed as
wishlist and not as a bug.
Changing it to wishlist.

Changed in trafodion:
importance: High → Wishlist
Changed in trafodion:
assignee: nobody → Barry Fritchman (barry-fritchman)
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