diff --git a/initdb/01signalk.sql b/initdb/01signalk.sql
new file mode 100755
index 0000000..9aa41d5
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+++ b/initdb/01signalk.sql
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+---------------------------------------------------------------------------
+-- PostgSail => Postgres + TimescaleDB + PostGIS + PostgREST
+--
+-- Inspired from:
+-- https://groups.google.com/g/signalk/c/W2H15ODCic4
+--
+-- Description:
+-- Insert data into table metadata from API using PostgREST
+-- Insert data into table metrics from API using PostgREST
+-- TimescaleDB Hypertable to store signalk metrics
+-- pgsql functions to generate logbook, stays, moorages
+-- CRON functions to process logbook, stays, moorages
+-- python functions for geo reverse and send notification via email and/or pushover
+-- Views statistics, timelapse, monitoring, logs
+-- Always store time in UTC
+---------------------------------------------------------------------------
+
+-- vessels signalk -(POST)-> metadata -> metadata_upsert -(trigger)-> metadata_upsert_trigger_fn (INSERT or UPDATE)
+-- vessels signalk -(POST)-> metrics -> metrics -(trigger)-> metrics_fn new log,stay,moorage
+
+---------------------------------------------------------------------------
+
+-- Drop database
+-- % docker exec -i timescaledb-postgis psql -Uusername -W postgres -c "drop database signalk;"
+
+-- Import Schema
+-- % cat signalk.sql | docker exec -i timescaledb-postgis psql -Uusername postgres
+
+-- Export hypertable
+-- % docker exec -i timescaledb-postgis psql -Uusername -W signalk -c "\COPY (SELECT * FROM api.metrics ORDER BY time ASC) TO '/var/lib/postgresql/data/metrics.csv' DELIMITER ',' CSV"
+-- Export hypertable to gzip
+-- # docker exec -i timescaledb-postgis psql -Uusername -W signalk -c "\COPY (SELECT * FROM api.metrics ORDER BY time ASC) TO PROGRAM 'gzip > /var/lib/postgresql/data/metrics.csv.gz' CSV HEADER;"
+
+DO $$
+BEGIN
+RAISE WARNING '
+  _________.__                     .__   ____  __.
+ /   _____/|__| ____   ____ _____  |  | |    |/ _|
+ \_____  \ |  |/ ___\ /    \\__  \ |  | |      < 
+ /        \|  / /_/  >   |  \/ __ \|  |_|    |  \
+/_______  /|__\___  /|___|  (____  /____/____|__ \
+        \/   /_____/      \/     \/             \/
+ %', now();
+END $$;
+
+select version();
+
+-- Database
+CREATE DATABASE signalk;
+-- Limit connection to 100
+ALTER DATABASE signalk WITH CONNECTION LIMIT = 100;
+-- Set timezone to UTC
+ALTER DATABASE signalk SET TIMEZONE='UTC';
+
+-- connect to the DB
+\c signalk
+
+-- Schema
+CREATE SCHEMA IF NOT EXISTS api;
+COMMENT ON SCHEMA api IS 'api schema expose to postgrest';
+
+-- Revoke default privileges to all public functions
+ALTER DEFAULT PRIVILEGES REVOKE EXECUTE ON FUNCTIONS FROM PUBLIC;
+
+-- Extensions
+CREATE EXTENSION IF NOT EXISTS timescaledb; -- provides time series functions for PostgreSQL
+-- CREATE EXTENSION IF NOT EXISTS timescaledb_toolkit; -- provides time series functions for PostgreSQL
+CREATE EXTENSION IF NOT EXISTS postgis; -- adds support for geographic objects to the PostgreSQL object-relational database
+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';