kingbase导出所有表的建表语句

可以使用以下SQL语句导出Kingbase所有表的建表语句：

SELECT 'CREATE TABLE ' || relname || E'(\n' || column_definition || E'\n);' AS create_table_sql
FROM pg_class
JOIN pg_namespace ON pg_namespace.oid = pg_class.relnamespace
JOIN (
    SELECT attrelid, string_agg(column_definition, E',\n') AS column_definition
    FROM (
        SELECT attrelid, attname || ' ' || format_type(atttypid, atttypmod) AS column_definition
        FROM pg_attribute
        WHERE NOT attisdropped AND attnum > 0
        ORDER BY attnum
    ) sub
    GROUP BY attrelid
) cols ON cols.attrelid = pg_class.oid
WHERE relkind = 'r' AND nspname = 'public'
ORDER BY relname;

执行该SQL语句后，会输出所有表的建表语句，可以将结果保存到文件中。注意，该语句只能导出public模式下的表，如果需要导出其他模式下的表，需要修改`nspname`的值。