-- Targeted indexes for hot queries whose current indexes don't match the
-- filter. Each one was chosen after reading the actual sqlx call sites; we
-- didn't add "just in case" indexes on tables whose only access pattern is
-- a PK lookup.

-- Outbox drainer: `WHERE status = 'queued' ORDER BY created_at LIMIT $1`
-- (crates/cm-db/src/repo/outbox.rs). The existing outbox_workspace_idx is
-- `(workspace_id, created_at DESC)` — no help for the workspace-agnostic
-- drainer that pops the oldest queued row. Partial index keeps it tiny.
CREATE INDEX IF NOT EXISTS outbox_queued_idx
    ON outbox (created_at)
    WHERE status = 'queued';

-- Audit log rate limiting: `WHERE workspace_id = $1 AND event_type = $2
-- AND created_at > now() - interval '1 hour'` fires on every door tool
-- call (cm-api/src/mcp_door.rs) and every A2A invocation. Descending
-- created_at because count()s scan the recent tail.
CREATE INDEX IF NOT EXISTS audit_log_workspace_event_idx
    ON audit_log (workspace_id, event_type, created_at DESC);

-- Node rules eval loop: `SELECT ... FROM node_rules WHERE enabled`
-- (crates/cm-db/src/repo/node_rules.rs:90) runs periodically. Partial
-- index avoids indexing disabled rules.
CREATE INDEX IF NOT EXISTS node_rules_enabled_idx
    ON node_rules (workspace_id)
    WHERE enabled;