Db working & Migrations

db/migrations/20250612223204_initial_schema.sql

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+-- Add migration script here
+
+CREATE EXTENSION IF NOT EXISTS pg_trgm;
+
+CREATE TABLE actor (
+  did VARCHAR PRIMARY KEY,
+  handle VARCHAR UNIQUE,
+  indexed_at VARCHAR NOT NULL
+);
+CREATE INDEX actor_handle_trgm_idx ON actor USING gist (handle gist_trgm_ops);
+
+CREATE TABLE session (
+  uri VARCHAR PRIMARY KEY,
+  cid VARCHAR NOT NULL,
+  owner VARCHAR NOT NULL,
+
+  content VARCHAR NOT NULL,
+  contentcid VARCHAR NOT NULL,
+  label VARCHAR,
+  -- Participants in participant
+
+  created_at VARCHAR NOT NULL,
+  indexed_at VARCHAR NOT NULL,
+  sort_at VARCHAR GENERATED ALWAYS AS (LEAST(created_at,indexed_at)) STORED NOT NULL
+);
+
+CREATE TABLE activity (
+  uri VARCHAR PRIMARY KEY,
+  cid VARCHAR NOT NULL,
+
+  session VARCHAR,
+  sessioncid VARCHAR,
+  -- Progress in progress
+
+  performed_at VARCHAR,
+  created_at VARCHAR NOT NULL,
+  indexed_at VARCHAR NOT NULL,
+  sort_at VARCHAR GENERATED ALWAYS AS (LEAST(created_at,indexed_at)) STORED NOT NULL
+);
+
+CREATE TABLE participant (
+  participantdid VARCHAR NOT NULL,
+  session VARCHAR NOT NULL,
+  role VARCHAR NOT NULL
+);