Question

我在mysql错误日志中不断收到以下错误。

2018-05-16T05:00:09.031837Z 624962 [Warning] InnoDB: Cannot add field `jobcontrac14__REPLACEMENT_PERIOD_319` in table `tmp`.`#sql_4c85_0` because after adding it, the row size is 8134 which is greater than maximum allowed size (8126) for a record on index leaf page.

以下是创建表日志和REPLACEMENT_PERIOD列中的数据长度。

此列中的数据长度为最大值8。

问）为什么我仍然得到关于行大小大于允许的最大错误日志？

问）从jobcontrac14__REPLACEMENT_PERIOD_319，我可以知道它在谈论哪一行吗？所有日志中的文字_14，_319和tmp。#sql_4c85_0保持不变。

问：我怎么知道哪个查询导致了这个错误？

问）请指出有关如何阅读/理解mysql错误日志的任何文档。

| JOB_CONTRACTS | CREATE TABLE `JOB_CONTRACTS` (
  `ID` int(11) NOT NULL AUTO_INCREMENT,
  `REPLACEMENT_PERIOD` varchar(25) DEFAULT NULL,
  `FEE_STRUCTURE` varchar(20) DEFAULT NULL,
  `POTENTIAL_BILLING` varchar(20) DEFAULT NULL,
  `INVOICE_AFTER_DAYS` varchar(10) DEFAULT NULL,
  `OFFERED_COMPENSATION` double DEFAULT NULL,
  `FLAT_FEE` varchar(10) DEFAULT NULL,
  `JOB_ID` int(11) DEFAULT NULL,
  PRIMARY KEY (`ID`),
  KEY `fk_JOB_ID_CONTRACTS_indx` (`JOB_ID`),
  CONSTRAINT `fk_JOB_ID_CONTRACT_1` FOREIGN KEY (`JOB_ID`) REFERENCES `JOBS` (`ID`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=4871 DEFAULT CHARSET=utf8 |




mysql> SELECT COUNT(*), REPLACEMENT_PERIOD, LENGTH(REPLACEMENT_PERIOD) FROM JOB_CONTRACTS GROUP BY REPLACEMENT_PERIOD;
+----------+--------------------+----------------------------+
| COUNT(*) | REPLACEMENT_PERIOD | LENGTH(REPLACEMENT_PERIOD) |
+----------+--------------------+----------------------------+
|        2 | 0                  |                          1 |
|        2 | 1 year             |                          6 |
|      249 | 120                |                          3 |
|        5 | 120 days           |                          8 |
|       13 | 15                 |                          2 |
|       87 | 180                |                          3 |
|       28 | 180 days           |                          8 |
|      127 | 30                 |                          2 |
|       24 | 30 days            |                          7 |
|      155 | 45                 |                          2 |
|      815 | 60                 |                          2 |
|       33 | 60 days            |                          7 |
|        5 | 75                 |                          2 |
|     2483 | 90                 |                          2 |
|      770 | 90 days            |                          7 |
|        2 | None               |                          4 |
|        3 | Other              |                          5 |
+----------+--------------------+----------------------------+

谢谢！

Answer 1

请看 Answer to this question

您需要切换到MyISAM引擎以获取临时表（在您的情况下，在group by执行期间创建）将此行添加到my.cnf

internal_tmp_disk_storage_engine=MyISAM

如何读取mysql错误日志

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