Wolfgang Hottgenroth
b374b7f49d
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74 lines
2.8 KiB
SQL
74 lines
2.8 KiB
SQL
-- query
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with
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first_day_in_year as (
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select
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date_trunc('day', min(time)) as day
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from pv_power_measurement_t
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where
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time between date_trunc('year', time) and now()
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),
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first_value_in_year as (
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select
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time_bucket('1 day', time) as interval,
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first(exportenergyactive, time) as energy
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from pv_power_measurement_t
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where
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time between (select day from first_day_in_year) and (select day from first_day_in_year) + interval '1 day' and
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status = 'Ok'
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group by interval
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),
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first_day_in_month as (
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select
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date_trunc('day', min(time)) as day
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from pv_power_measurement_t
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where
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time between date_trunc('month', now()) and now()
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),
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first_value_in_month as (
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select
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time_bucket('1 day', time) as interval,
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first(exportenergyactive, time) as energy
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from pv_power_measurement_t
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where
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time between (select day from first_day_in_month) and (select day from first_day_in_month) + interval '1 day' and
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status = 'Ok'
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group by interval
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),
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first_value_in_day as (
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select
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time_bucket('1 day', time) as interval,
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first(exportenergyactive, time) as energy
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from pv_power_measurement_t
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where time >= date_trunc('day', now())
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group by interval
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),
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last_value as (
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select
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time_bucket('1 day', time) as interval,
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last(exportenergyactive, time) as energy
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from pv_power_measurement_t
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where
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time between date_trunc('day', now()) and date_trunc('day', now()) + interval '1 day' and
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status = 'Ok'
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group by interval
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)
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select
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extract(year from (select day from first_day_in_year))::text as period_value,
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'Year' as period_name,
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round(((select energy from last_value) - (select energy from first_value_in_year))::numeric, 2) as yield
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union
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select
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to_char((select day from first_day_in_month), 'Month') as period_value,
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'Month' as period_name,
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round(((select energy from last_value) - (select energy from first_value_in_month))::numeric, 2) as yield
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union
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select
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now()::date::text as period_value,
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'Day' as period_name,
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round(((select energy from last_value) - (select energy from first_value_in_day))::numeric, 2) as yield;
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-- output format
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-- wn@atuin:~/Workspace/go-workspace/src/universal-data-ingest [main ≡ +0 ~1 -0 !]$ mosquitto_sub -h 172.23.1.102 -v -t IoT/PV/Yields
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-- IoT/PV/Yields {"Month":"1.43","Year":"285.39","Day":"0.00"}
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