Initial open source release

deploy/migrations/0024_channel_admin_log_backfill.up.sql

@@ -0,0 +1,78 @@
+-- 0024_channel_admin_log_backfill: bring existing developer DBs forward after
+-- channel settings/admin-log fields were added to the initial 0022 draft.
+--
+-- Fresh databases already get these objects from 0022; every statement here is
+-- idempotent so old local databases can migrate without reset.
+
+ALTER TABLE channels
+    ADD COLUMN IF NOT EXISTS pre_history_hidden BOOLEAN NOT NULL DEFAULT false,
+    ADD COLUMN IF NOT EXISTS slowmode_seconds INT NOT NULL DEFAULT 0,
+    ADD COLUMN IF NOT EXISTS admin_log_seq BIGINT NOT NULL DEFAULT 0;
+
+CREATE TABLE IF NOT EXISTS channel_admin_log_events (
+    channel_id           BIGINT      NOT NULL REFERENCES channels(id) ON DELETE CASCADE,
+    id                   BIGINT      NOT NULL,
+    actor_user_id        BIGINT      NOT NULL REFERENCES users(id) ON DELETE RESTRICT,
+    event_date           INT         NOT NULL,
+    event_type           VARCHAR(48) NOT NULL,
+    prev_string          TEXT        NOT NULL DEFAULT '',
+    new_string           TEXT        NOT NULL DEFAULT '',
+    prev_bool            BOOLEAN     NOT NULL DEFAULT false,
+    new_bool             BOOLEAN     NOT NULL DEFAULT false,
+    prev_int             INT         NOT NULL DEFAULT 0,
+    new_int              INT         NOT NULL DEFAULT 0,
+    prev_participant     JSONB       NOT NULL DEFAULT '{}'::jsonb,
+    new_participant      JSONB       NOT NULL DEFAULT '{}'::jsonb,
+    participant          JSONB       NOT NULL DEFAULT '{}'::jsonb,
+    message              JSONB       NOT NULL DEFAULT '{}'::jsonb,
+    prev_message         JSONB       NOT NULL DEFAULT '{}'::jsonb,
+    new_message          JSONB       NOT NULL DEFAULT '{}'::jsonb,
+    query                TEXT        NOT NULL DEFAULT '',
+    created_at           TIMESTAMPTZ NOT NULL DEFAULT now(),
+    PRIMARY KEY (channel_id, id),
+    CONSTRAINT channel_admin_log_events_type_check CHECK (
+        event_type IN (
+            'change_title',
+            'change_username',
+            'change_linked_chat',
+            'toggle_signatures',
+            'toggle_pre_history_hidden',
+            'toggle_forum',
+            'toggle_anti_spam',
+            'toggle_slow_mode',
+            'participant_invite',
+            'participant_join',
+            'participant_leave',
+            'participant_promote',
+            'participant_demote',
+            'participant_ban',
+            'participant_unban',
+            'participant_kick',
+            'participant_unkick',
+            'update_pinned',
+            'send_message',
+            'edit_message',
+            'delete_message'
+        )
+    )
+) PARTITION BY HASH (channel_id);
+
+CREATE INDEX IF NOT EXISTS channel_admin_log_events_scan_idx
+    ON channel_admin_log_events (channel_id, id DESC);
+CREATE INDEX IF NOT EXISTS channel_admin_log_events_actor_idx
+    ON channel_admin_log_events (channel_id, actor_user_id, id DESC);
+CREATE INDEX IF NOT EXISTS channel_admin_log_events_type_idx
+    ON channel_admin_log_events (channel_id, event_type, id DESC);
+
+DO $$
+DECLARE
+    i int;
+BEGIN
+    FOR i IN 0..63 LOOP
+        EXECUTE format(
+            'CREATE TABLE IF NOT EXISTS channel_admin_log_events_p%s PARTITION OF channel_admin_log_events FOR VALUES WITH (MODULUS 64, REMAINDER %s)',
+            lpad(i::text, 2, '0'),
+            i
+        );
+    END LOOP;
+END $$;