-- Verify the server-version plumbing: clickhouse_server_version() reports a
-- plausible ClickHouse version over both the binary and HTTP drivers. The
-- exact version is environment-specific, so assert only that a real version is
-- returned in "major.minor.patch" form with a non-zero major.

-- Suppress the env-dependent "drop cascades to user mapping for <user>" notice.
SET client_min_messages = warning;
CREATE SERVER srv_ver_binary FOREIGN DATA WRAPPER clickhouse_fdw
    OPTIONS (driver 'binary');
CREATE USER MAPPING FOR CURRENT_USER SERVER srv_ver_binary;

CREATE SERVER srv_ver_http FOREIGN DATA WRAPPER clickhouse_fdw
    OPTIONS (driver 'http');
CREATE USER MAPPING FOR CURRENT_USER SERVER srv_ver_http;

SELECT clickhouse_server_version('srv_ver_binary') ~ '^[1-9][0-9]*\.[0-9]+\.[0-9]+$'
           AS binary_well_formed;

SELECT clickhouse_server_version('srv_ver_http') ~ '^[1-9][0-9]*\.[0-9]+\.[0-9]+$'
           AS http_well_formed;

DROP SERVER srv_ver_binary CASCADE;
DROP SERVER srv_ver_http CASCADE;