Schemaverse: Last Tic Duration

sv_last_tic_duration.sql

select
( select toc from my_events
    where public and action = 'TIC'
    and tic = ( select last_value-1 from tic_seq )
)::time -
( select toc from my_events
    where public and action = 'TIC'
    and tic = ( select last_value-2 from tic_seq )
)::time
;





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