storage: implement postgres event query/count filter translation

config/test.exs

@@ -5,3 +5,25 @@ config :logger, level: :warning
 config :parrhesia, Parrhesia.Web.Endpoint,
   port: 0,
   ip: {127, 0, 0, 1}
+
+pg_host = System.get_env("PGHOST")
+
+repo_host_opts =
+  if is_binary(pg_host) and String.starts_with?(pg_host, "/") do
+    [socket_dir: pg_host]
+  else
+    [
+      hostname: pg_host || "localhost",
+      port: String.to_integer(System.get_env("PGPORT") || "5432")
+    ]
+  end
+
+config :parrhesia,
+       Parrhesia.Repo,
+       [
+         username: System.get_env("PGUSER") || System.get_env("USER") || "agent",
+         password: System.get_env("PGPASSWORD"),
+         database: System.get_env("PGDATABASE") || "parrhesia_test",
+         pool: Ecto.Adapters.SQL.Sandbox,
+         pool_size: 10
+       ] ++ repo_host_opts