mysql 8.0.13行大小太大（> 8126）

时间：2018-12-17 11:50:39

标签： mysql innodb mysql-8.0

我已经阅读了有关此错误的所有其他相同问题。但是我找不到正确的解决方案来解决MySQL服务器8.0.13的错误。请帮忙。

我有下表，其中255列为MEDIUMTEXT类型

 CREATE TABLE `guidatatable` (
   `id` INT NOT NULL AUTO_INCREMENT,
   `col01` MEDIUMTEXT NULL,
   `col02` MEDIUMTEXT NULL,
   `col03` MEDIUMTEXT NULL,
   `col04` MEDIUMTEXT NULL,
   `col05` MEDIUMTEXT NULL,
   `col06` MEDIUMTEXT NULL,
   `col07` MEDIUMTEXT NULL,
   `col08` MEDIUMTEXT NULL,
   `col09` MEDIUMTEXT NULL,
   `col10` MEDIUMTEXT NULL,
   `col11` MEDIUMTEXT NULL,
   `col12` MEDIUMTEXT NULL,
   `col13` MEDIUMTEXT NULL,
   `col14` MEDIUMTEXT NULL,
   `col15` MEDIUMTEXT NULL,
   `col16` MEDIUMTEXT NULL,
   `col17` MEDIUMTEXT NULL,
   `col18` MEDIUMTEXT NULL,
   `col19` MEDIUMTEXT NULL,
   `col20` MEDIUMTEXT NULL,
   `col21` MEDIUMTEXT NULL,
   `col22` MEDIUMTEXT NULL,
   `col23` MEDIUMTEXT NULL,
   `col24` MEDIUMTEXT NULL,
   `col25` MEDIUMTEXT NULL,
   `col26` MEDIUMTEXT NULL,
   `col27` MEDIUMTEXT NULL,
   `col28` MEDIUMTEXT NULL,
   `col29` MEDIUMTEXT NULL,
   `col30` MEDIUMTEXT NULL,
   `col31` MEDIUMTEXT NULL,
   `col32` MEDIUMTEXT NULL,
   `col33` MEDIUMTEXT NULL,
   `col34` MEDIUMTEXT NULL,
   `col35` MEDIUMTEXT NULL,
   `col36` MEDIUMTEXT NULL,
   `col37` MEDIUMTEXT NULL,
   `col38` MEDIUMTEXT NULL,
   `col39` MEDIUMTEXT NULL,
   `col40` MEDIUMTEXT NULL,
   `col41` MEDIUMTEXT NULL,
   `col42` MEDIUMTEXT NULL,
   `col43` MEDIUMTEXT NULL,
   `col44` MEDIUMTEXT NULL,
   `col45` MEDIUMTEXT NULL,
   `col46` MEDIUMTEXT NULL,
   `col47` MEDIUMTEXT NULL,
   `col48` MEDIUMTEXT NULL,
   `col49` MEDIUMTEXT NULL,
   `col50` MEDIUMTEXT NULL,
   `col51` MEDIUMTEXT NULL,
   `col52` MEDIUMTEXT NULL,
   `col53` MEDIUMTEXT NULL,
   `col54` MEDIUMTEXT NULL,
   `col55` MEDIUMTEXT NULL,
   `col56` MEDIUMTEXT NULL,
   `col57` MEDIUMTEXT NULL,
   `col58` MEDIUMTEXT NULL,
   `col59` MEDIUMTEXT NULL,
   `col60` MEDIUMTEXT NULL,
   `col61` MEDIUMTEXT NULL,
   `col62` MEDIUMTEXT NULL,
   `col63` MEDIUMTEXT NULL,
   `col64` MEDIUMTEXT NULL,
   `col65` MEDIUMTEXT NULL,
   `col66` MEDIUMTEXT NULL,
   `col67` MEDIUMTEXT NULL,
   `col68` MEDIUMTEXT NULL,
   `col69` MEDIUMTEXT NULL,
   `col70` MEDIUMTEXT NULL,
   `col71` MEDIUMTEXT NULL,
   `col72` MEDIUMTEXT NULL,
   `col73` MEDIUMTEXT NULL,
   `col74` MEDIUMTEXT NULL,
   `col75` MEDIUMTEXT NULL,
   `col76` MEDIUMTEXT NULL,
   `col77` MEDIUMTEXT NULL,
   `col78` MEDIUMTEXT NULL,
   `col79` MEDIUMTEXT NULL,
   `col80` MEDIUMTEXT NULL,
   `col81` MEDIUMTEXT NULL,
   `col82` MEDIUMTEXT NULL,
   `col83` MEDIUMTEXT NULL,
   `col84` MEDIUMTEXT NULL,
   `col85` MEDIUMTEXT NULL,
   `col86` MEDIUMTEXT NULL,
   `col87` MEDIUMTEXT NULL,
   `col88` MEDIUMTEXT NULL,
   `col89` MEDIUMTEXT NULL,
   `col90` MEDIUMTEXT NULL,
   `col91` MEDIUMTEXT NULL,
   `col92` MEDIUMTEXT NULL,
   `col93` MEDIUMTEXT NULL,
   `col94` MEDIUMTEXT NULL,
   `col95` MEDIUMTEXT NULL,
   `col96` MEDIUMTEXT NULL,
   `col97` MEDIUMTEXT NULL,
   `col98` MEDIUMTEXT NULL,
   `col99` MEDIUMTEXT NULL,
   `col100` MEDIUMTEXT NULL,
   `col101` MEDIUMTEXT NULL,
   `col102` MEDIUMTEXT NULL,
   `col103` MEDIUMTEXT NULL,
   `col104` MEDIUMTEXT NULL,
   `col105` MEDIUMTEXT NULL,
   `col106` MEDIUMTEXT NULL,
   `col107` MEDIUMTEXT NULL,
   `col108` MEDIUMTEXT NULL,
   `col109` MEDIUMTEXT NULL,
   `col110` MEDIUMTEXT NULL,
   `col111` MEDIUMTEXT NULL,
   `col112` MEDIUMTEXT NULL,
   `col113` MEDIUMTEXT NULL,
   `col114` MEDIUMTEXT NULL,
   `col115` MEDIUMTEXT NULL,
   `col116` MEDIUMTEXT NULL,
   `col117` MEDIUMTEXT NULL,
   `col118` MEDIUMTEXT NULL,
   `col119` MEDIUMTEXT NULL,
   `col120` MEDIUMTEXT NULL,
   `col121` MEDIUMTEXT NULL,
   `col122` MEDIUMTEXT NULL,
   `col123` MEDIUMTEXT NULL,
   `col124` MEDIUMTEXT NULL,
   `col125` MEDIUMTEXT NULL,
   `col126` MEDIUMTEXT NULL,
   `col127` MEDIUMTEXT NULL,
   `col128` MEDIUMTEXT NULL,
   `col129` MEDIUMTEXT NULL,
   `col130` MEDIUMTEXT NULL,
   `col131` MEDIUMTEXT NULL,
   `col132` MEDIUMTEXT NULL,
   `col133` MEDIUMTEXT NULL,
   `col134` MEDIUMTEXT NULL,
   `col135` MEDIUMTEXT NULL,
   `col136` MEDIUMTEXT NULL,
   `col137` MEDIUMTEXT NULL,
   `col138` MEDIUMTEXT NULL,
   `col139` MEDIUMTEXT NULL,
   `col140` MEDIUMTEXT NULL,
   `col141` MEDIUMTEXT NULL,
   `col142` MEDIUMTEXT NULL,
   `col143` MEDIUMTEXT NULL,
   `col144` MEDIUMTEXT NULL,
   `col145` MEDIUMTEXT NULL,
   `col146` MEDIUMTEXT NULL,
   `col147` MEDIUMTEXT NULL,
   `col148` MEDIUMTEXT NULL,
   `col149` MEDIUMTEXT NULL,
   `col150` MEDIUMTEXT NULL,
 `col151` MEDIUMTEXT NULL,
 `col152` MEDIUMTEXT NULL,
 `col153` MEDIUMTEXT NULL,
 `col154` MEDIUMTEXT NULL,
 `col155` MEDIUMTEXT NULL,
 `col156` MEDIUMTEXT NULL,
 `col157` MEDIUMTEXT NULL,
 `col158` MEDIUMTEXT NULL,
 `col159` MEDIUMTEXT NULL,
 `col160` MEDIUMTEXT NULL,
 `col161` MEDIUMTEXT NULL,
 `col162` MEDIUMTEXT NULL,
 `col163` MEDIUMTEXT NULL,
 `col164` MEDIUMTEXT NULL,
 `col165` MEDIUMTEXT NULL,
 `col166` MEDIUMTEXT NULL,
 `col167` MEDIUMTEXT NULL,
 `col168` MEDIUMTEXT NULL,
 `col169` MEDIUMTEXT NULL,
 `col170` MEDIUMTEXT NULL,
 `col171` MEDIUMTEXT NULL,
 `col172` MEDIUMTEXT NULL,
 `col173` MEDIUMTEXT NULL,
 `col174` MEDIUMTEXT NULL,
 `col175` MEDIUMTEXT NULL,
 `col176` MEDIUMTEXT NULL,
 `col177` MEDIUMTEXT NULL,
 `col178` MEDIUMTEXT NULL,
 `col179` MEDIUMTEXT NULL,
 `col180` MEDIUMTEXT NULL,
 `col181` MEDIUMTEXT NULL,
 `col182` MEDIUMTEXT NULL,
 `col183` MEDIUMTEXT NULL,
 `col184` MEDIUMTEXT NULL,
 `col185` MEDIUMTEXT NULL,
 `col186` MEDIUMTEXT NULL,
 `col187` MEDIUMTEXT NULL,
 `col188` MEDIUMTEXT NULL,
 `col189` MEDIUMTEXT NULL,
 `col190` MEDIUMTEXT NULL,
 `col191` MEDIUMTEXT NULL,
 `col192` MEDIUMTEXT NULL,
 `col193` MEDIUMTEXT NULL,
 `col194` MEDIUMTEXT NULL,
 `col195` MEDIUMTEXT NULL,
 `col196` MEDIUMTEXT NULL,
 `col197` MEDIUMTEXT NULL,
 `col198` MEDIUMTEXT NULL,
 `col199` MEDIUMTEXT NULL,
 `col200` MEDIUMTEXT NULL,
 `col201` MEDIUMTEXT NULL,
 `col202` MEDIUMTEXT NULL,
 `col203` MEDIUMTEXT NULL,
 `col204` MEDIUMTEXT NULL,
 `col205` MEDIUMTEXT NULL,
 `col206` MEDIUMTEXT NULL,
 `col207` MEDIUMTEXT NULL,
 `col208` MEDIUMTEXT NULL,
 `col209` MEDIUMTEXT NULL,
 `col210` MEDIUMTEXT NULL,
 `col211` MEDIUMTEXT NULL,
 `col212` MEDIUMTEXT NULL,
 `col213` MEDIUMTEXT NULL,
 `col214` MEDIUMTEXT NULL,
 `col215` MEDIUMTEXT NULL,
 `col216` MEDIUMTEXT NULL,
 `col217` MEDIUMTEXT NULL,
 `col218` MEDIUMTEXT NULL,
 `col219` MEDIUMTEXT NULL,
 `col220` MEDIUMTEXT NULL,
 `col221` MEDIUMTEXT NULL,
 `col222` MEDIUMTEXT NULL,
 `col223` MEDIUMTEXT NULL,
 `col224` MEDIUMTEXT NULL,
 `col225` MEDIUMTEXT NULL,
 `col226` MEDIUMTEXT NULL,
 `col227` MEDIUMTEXT NULL,
 `col228` MEDIUMTEXT NULL,
 `col229` MEDIUMTEXT NULL,
 `col230` MEDIUMTEXT NULL,
 `col231` MEDIUMTEXT NULL,
 `col232` MEDIUMTEXT NULL,
 `col233` MEDIUMTEXT NULL,
 `col234` MEDIUMTEXT NULL,
 `col235` MEDIUMTEXT NULL,
 `col236` MEDIUMTEXT NULL,
 `col237` MEDIUMTEXT NULL,
 `col238` MEDIUMTEXT NULL,
 `col239` MEDIUMTEXT NULL,
 `col240` MEDIUMTEXT NULL,
 `col241` MEDIUMTEXT NULL,
 `col242` MEDIUMTEXT NULL,
 `col243` MEDIUMTEXT NULL,
 `col244` MEDIUMTEXT NULL,
 `col245` MEDIUMTEXT NULL,
 `col246` MEDIUMTEXT NULL,
 `col247` MEDIUMTEXT NULL,
 `col248` MEDIUMTEXT NULL,
 `col249` MEDIUMTEXT NULL,
 `col250` MEDIUMTEXT NULL,
 `col251` MEDIUMTEXT NULL,
 `col252` MEDIUMTEXT NULL,
 `col253` MEDIUMTEXT NULL,
 `col254` MEDIUMTEXT NULL,
 `col255` MEDIUMTEXT NULL,
 `status` INT NULL,
 PRIMARY KEY (`id`))ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

但这会引发错误-

Error Code: 1118. Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline

我尝试了其他替代解决方案，例如调整my.ini文件，例如将innodb_log_file_size增大到2G，5G之类的程度，但是这些调整都没有带来成功。

此外，我不想只关闭innodb_strict_mode，因为我不认为关闭验证是唯一的解决方案。此类表针对MYSQL服务器版本8.0.13的任何其他解决方案。

2 个答案:

答案 0 :(得分：1)

通过设计一种愚蠢的桌子，您已经达到了尺寸限制，对不起！当您具有这样的“数组”方案时，应该进行 normalize － SQL就是为您设计的。

您需要展平已有的桌子。您需要select而不是(id, val1, val2, val3, val4, ...)。使用此方案，您将不会达到大小限制，并且 您将拥有更多习惯用法。

您还需要允许(id, 1, val), (id, 2, val), (id, 3, val), ...字段，所以我们最终得到这样的结果：

status

并确保将CREATE TABLE `guidatatable` ( `id` INT NOT NULL AUTO_INCREMENT, `status` INT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB; CREATE TABLE `guidatatable_values` ( `id` INT NOT NULL, `colNum` INT NOT NULL, `colValue` MEDIUMTEXT NOT NULL, PRIMARY KEY (`id`, `colNum`) ) ENGINE=InnoDB; 用作指向guidatatable_values.id的外键（我忘了这副手的最佳语法）。

数据转换的具体示例；这个：

guidatatable.id

成为这个：

id  col01   col02   col03   status
 1  Hello   World   !         42
 2  How     Are     You       99
 3  I       Am      Fine      168

如您所见，存储在表中的所有语义和关系信息均保持不变；它只是经过重组。

通常，一旦您达到最大桌子尺寸，您就会知道桌子太大了，并且可以可能进行更好的设计。在大型应用程序中，尤其是在遗留需求导致表越来越大的大型应用程序中，这尤其可能发生……再次，这通常是未能充分设计新功能的一个例子。

答案 1 :(得分：0)

MySQL的最大行大小。
因此，最好的选择是将表数据标准化为以下内容。 

 CREATE TABLE guidatatable (
    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT
  , col_row_position INT UNSIGNED NOT NULL 
  , col_text MEDIUMTEXT NULL
  , col_position INT UNSIGNED NOT NULL 
  , guidatatable_status VARCHAR(255)
  , KEY(col_row_position, col_position)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

这也可以处理MySQL更好的max packet size。

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