# users_auth_idx (auth_provider,auth_uid) UNIQUE
# users_display_name_canonical_idx (lower(NORMALIZE(display_name, NFKC)))
# users_display_name_idx (display_name) UNIQUE
# users_auth_idx (auth_provider,auth_uid) UNIQUE
# users_display_name_canonical_idx (lower(NORMALIZE(display_name, NFKC)))
# users_display_name_idx (display_name) UNIQUE