text: CREATE TABLE `test_all`
  (
      `id`                bigint(20) NOT NULL AUTO_INCREMENT,
      `c_bit_1`           bit(1)         DEFAULT NULL,
      `c_bit_8`           bit(8)         DEFAULT NULL,
      `c_bit_16`          bit(16)        DEFAULT NULL,
      `c_bit_32`          bit(32)        DEFAULT NULL,
      `c_bit_64`          bit(64)        DEFAULT NULL,
      `c_bool`            boolean        DEFAULT NULL,
      `c_tinyint_1`       tinyint(1) DEFAULT NULL,
      `c_tinyint_4`       tinyint(4) DEFAULT NULL,
      `c_tinyint_8`       tinyint(8) DEFAULT NULL,
      `c_tinyint_8_un`    tinyint(8) unsigned DEFAULT NULL,
      `c_smallint_1`      smallint(1) DEFAULT NULL,
      `c_smallint_16`     smallint(16) DEFAULT NULL,
      `c_smallint_16_un`  smallint(16) unsigned DEFAULT NULL,
      `c_mediumint_1`     mediumint(1) DEFAULT NULL,
      `c_mediumint_24`    mediumint(24) DEFAULT NULL,
      `c_mediumint_24_un` mediumint(24) unsigned DEFAULT NULL,
      `c_int_1`           int(1) DEFAULT NULL,
      `c_int_32`          int(32) DEFAULT NULL,
      `c_int_32_un`       int(32) unsigned DEFAULT NULL,
      `c_bigint_1`        bigint(1) DEFAULT NULL,
      `c_bigint_64`       bigint(64) DEFAULT NULL,
      `c_bigint_64_un`    bigint(64) unsigned DEFAULT NULL,
      `c_decimal`         decimal(10, 3) DEFAULT NULL,
      `c_decimal_pr`      decimal(10, 3) DEFAULT NULL,
      `c_float`           float          DEFAULT NULL,
      `c_float_pr`        float(10, 3
  ) DEFAULT NULL,
    `c_float_un` float(10,3) unsigned DEFAULT NULL,
    `c_double` double DEFAULT NULL,
    `c_double_pr` double(10,3) DEFAULT NULL,
    `c_double_un` double(10,3) unsigned DEFAULT NULL,
    `c_date` date DEFAULT NULL COMMENT 'date',
    `c_datetime` datetime DEFAULT NULL,
    `c_datetime_1` datetime(1) DEFAULT NULL,
    `c_datetime_3` datetime(3) DEFAULT NULL,
    `c_datetime_6` datetime(6) DEFAULT NULL,
    `c_timestamp` timestamp DEFAULT CURRENT_TIMESTAMP,
    `c_timestamp_1` timestamp(1) DEFAULT 0,
    `c_timestamp_3` timestamp(3) DEFAULT 0,
    `c_timestamp_6` timestamp(6) DEFAULT 0,
    `c_time` time DEFAULT NULL,
    `c_time_1` time(1) DEFAULT NULL,
    `c_time_3` time(3) DEFAULT NULL,
    `c_time_6` time(6) DEFAULT NULL,
    `c_year` year DEFAULT NULL,
    `c_year_4` year(4) DEFAULT NULL,
    `c_char` char(10) DEFAULT NULL,
    `c_varchar` varchar(10) DEFAULT NULL,
    `c_binary` binary(10) DEFAULT NULL,
    `c_varbinary` varbinary(10) DEFAULT NULL,
    `c_blob_tiny` tinyblob DEFAULT NULL,
    `c_blob` blob DEFAULT NULL,
    `c_blob_medium` mediumblob DEFAULT NULL,
    `c_blob_long` longblob DEFAULT NULL,
    `c_text_tiny` tinytext DEFAULT NULL,
    `c_text` text DEFAULT NULL,
    `c_text_medium` mediumtext DEFAULT NULL,
    `c_text_long` longtext DEFAULT NULL,
    `c_enum` enum('a','b','c') DEFAULT NULL,
    `c_set` set('a','b','c') DEFAULT NULL,
    `c_json` json DEFAULT NULL,
    PRIMARY KEY (`id`)
  ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COMMENT='10000000' 