db/views/in_use_tools_v01.sql
SELECT
tools.id as tool_id,
tools.name as tool_name,
sequences.name as sequence_name,
sequences.id as sequence_id,
sequences.device_id as device_id
FROM "edge_nodes"
INNER JOIN "sequences" ON sequences.id=sequences.id
INNER JOIN "tools" ON (edge_nodes.value)::int=tools.id
WHERE "edge_nodes"."kind" = 'tool_id';