============= Release 0.104

General Changes

Handle thread interruption in StatementClient.
Fix CLI hang when server becomes unreachable during a query.
Add :func:!covar_pop, :func:!covar_samp, :func:!corr, :func:!regr_slope, and :func:!regr_intercept functions.
Fix potential deadlock in cluster memory manager.
Add a visualization of query execution timeline.
Allow mixed case in input to :func:!from_hex.
Display "BLOCKED" state in web UI.
Reduce CPU usage in coordinator.
Fix excess object retention in workers due to long running queries.
Reduce memory usage of :func:!array_distinct.
Add optimizer for projection push down which can improve the performance of certain query shapes.
Improve query performance by storing pre-partitioned pages.
Support TIMESTAMP for :func:!first_value, :func:!last_value, :func:!nth_value, :func:!lead and :func:!lag.