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Update api.metrics to support 2 dimension hypertable. Update api.metadata tablesto with updated_at handle by moddatetime extension

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xbgmsharp
2022-12-17 23:15:22 +01:00
parent 4c4f0bbd37
commit 54156ae7c9
1 changed files with 21 additions and 6 deletions
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27
initdb/02_1_signalk_api.sql
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@@ -70,6 +70,7 @@ CREATE EXTENSION IF NOT EXISTS plpgsql; -- PL/pgSQL procedural language
CREATE EXTENSION IF NOT EXISTS plpython3u; -- implements PL/Python based on the Python 3 language variant.
CREATE EXTENSION IF NOT EXISTS jsonb_plpython3u CASCADE; -- tranform jsonb to python json type.
CREATE EXTENSION IF NOT EXISTS pg_stat_statements; -- provides a means for tracking planning and execution statistics of all SQL statements executed
CREATE EXTENSION IF NOT EXISTS "moddatetime"; -- provides functions for tracking last modification time
-- Trust plpython3u language by default
UPDATE pg_language SET lanpltrusted = true WHERE lanname = 'plpython3u';
@@ -91,8 +92,10 @@ CREATE TABLE IF NOT EXISTS api.metadata(
plugin_version VARCHAR(10) NOT NULL,
signalk_version VARCHAR(10) NOT NULL,
time TIMESTAMP WITHOUT TIME ZONE NOT NULL, -- should be rename to last_update !?
active BOOLEAN DEFAULT True -- trigger monitor online/offline
active BOOLEAN DEFAULT True, -- trigger monitor online/offline
-- vessel_id link auth.vessels with api.metadata
created_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW(),
updated_at TIMESTAMP WITHOUT TIME ZONE NOT NULL DEFAULT NOW()
);
-- Description
COMMENT ON TABLE
@@ -134,12 +137,12 @@ CREATE INDEX ON api.metrics (status, time DESC);
-- json index??
CREATE INDEX ON api.metrics using GIN (metrics);
-- timescaledb hypertable
SELECT create_hypertable('api.metrics', 'time');
--SELECT create_hypertable('api.metrics', 'time');
-- timescaledb hypertable with space partitions
--SELECT create_hypertable('api.metrics', 'time', 'client_id',
-- number_partitions => 2,
-- chunk_time_interval => INTERVAL '1 day',
-- if_not_exists => true);
SELECT create_hypertable('api.metrics', 'time', 'client_id',
number_partitions => 2,
chunk_time_interval => INTERVAL '7 day',
if_not_exists => true);
---------------------------------------------------------------------------
-- Logbook
@@ -327,6 +330,15 @@ COMMENT ON FUNCTION
public.metadata_upsert_trigger_fn
IS 'process metadata from vessel, upsert';
CREATE TRIGGER metadata_moddatetime
BEFORE UPDATE ON api.metadata
FOR EACH ROW
EXECUTE PROCEDURE moddatetime (updated_at);
-- Description
COMMENT ON TRIGGER metadata_moddatetime
ON api.metadata
IS 'Automatic update of updated_at on table modification';
-- FUNCTION Metadata notification for new vessel after insert
DROP FUNCTION IF EXISTS metadata_notification_trigger_fn;
CREATE FUNCTION metadata_notification_trigger_fn() RETURNS trigger AS $metadata_notification$
@@ -829,6 +841,9 @@ CREATE VIEW stay_in_progress AS
FROM api.stays
WHERE active IS true;
-- list all json keys from api.metrics.metric jsonb
--select m.time,jsonb_object_keys(m.metrics) from last_metric m where m.client_id = 'vessels.urn:mrn:imo:mmsi:787654321';
-- TODO: Use materialized views instead as it is not live data
-- Logs web view
DROP VIEW IF EXISTS api.logs_view;