Constant INTROSPECT_TABLES_SQL 

pub const INTROSPECT_TABLES_SQL: &str = "\
    SELECT table_name \
    FROM information_schema.tables \
    WHERE table_schema = 'public' \
      AND table_type = 'BASE TABLE' \
      AND table_name NOT LIKE '_pylon_%' \
    ORDER BY table_name";

SQL to list user tables in the public schema.