<?php 
function getKeyColumns($table) {
    $keyColumnsMap = [
        "line_lists" => ["line", "fluid_code"],
        "supports" => ["id"],
        "paint_matrices" => ["line", "fluid_code"],
        "nde_matrices" => ["line", "fluid", "type_of_joint"],
        "document_revisions" => ["drawing_no", "zone"],
        "m_t_o_s" => ["line", "component_code_id"],
        "test_packages" => ["test_package_number"],
        "test_pack_base_statuses" => ["test_package_no"],
        "punch_lists" => ["test_package", "punch_list_no"],
        "weld_logs" => ["iso", "joint"]
    ];

    // log_test_types() tabloları için özel kontrol
    if (in_array($table, log_test_types())) {
        return ["iso", "joint", "welding_date"];
    }

    // Tablo için tanımlı sütunları döndür
    return $keyColumnsMap[$table] ?? [];
}
?>