75 lines
1.9 KiB
SQL
75 lines
1.9 KiB
SQL
create or replace function ems.fn_forecast_pv_split(p_site_id int, p_day date)
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returns jsonb
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language sql
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stable
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as $fn$
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with latest as (
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select distinct on (fpi.interval_start, fpr.pv_array_id)
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fpi.run_id,
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fpi.pv_array_id,
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fpi.interval_start,
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fpi.power_w,
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fpi.irradiance_wm2,
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fpi.temp_c,
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apa.code as pv_array_code,
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apa.controllable
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from ems.forecast_pv_interval fpi
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join ems.forecast_pv_run fpr on fpr.id = fpi.run_id
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join ems.asset_pv_array apa
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on apa.id = fpr.pv_array_id
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and apa.site_id = fpr.site_id
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where fpr.site_id = p_site_id
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and (
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fpi.interval_start at time zone coalesce(
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nullif(trim((select timezone from ems.site s where s.id = p_site_id)), ''),
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'Europe/Prague'
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)
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)::date = p_day
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and fpr.status = 'ok'
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order by fpi.interval_start, fpr.pv_array_id, fpr.created_at desc
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),
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rows as (
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select
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case
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when controllable then 'a'
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else 'b'
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end as pole,
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jsonb_build_object(
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'run_id', run_id,
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'pv_array_id', pv_array_id,
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'interval_start', interval_start,
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'power_w', power_w,
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'irradiance_wm2', irradiance_wm2,
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'temp_c', temp_c,
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'pv_array_code', pv_array_code
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) as j,
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controllable,
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pv_array_code,
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interval_start
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from latest
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)
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select jsonb_build_object(
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'pv_a',
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coalesce(
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(
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select jsonb_agg(j order by pv_array_code, interval_start)
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from rows
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where controllable
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),
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'[]'::jsonb
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),
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'pv_b',
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coalesce(
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(
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select jsonb_agg(j order by pv_array_code, interval_start)
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from rows
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where not controllable
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),
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'[]'::jsonb
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)
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);
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$fn$;
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comment on function ems.fn_forecast_pv_split(int, date) is
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'Predikce FVE rozsplitěná na pole A (controllable) a B pro UI.';
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