Difference between revisions of "MySQL Features & Bugs"

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* '''Automatic Initialization and Updating for TIMESTAMP and DATETIME''': added in 5.6.5 [https://dev.mysql.com/doc/refman/5.6/en/timestamp-initialization.html Source]
* '''Automatic Initialization and Updating for TIMESTAMP and DATETIME''': added in 5.6.5 [https://dev.mysql.com/doc/refman/5.6/en/timestamp-initialization.html Source]
** Additional Notes:
<source lang="mysql">
x INT DEFAULT NULL #works in all versions
x TIMESTAMP DEFAULT NULL #works in some versions, and not in others
x TIMESTAMP NULL DEFAULT NULL #seems to work in all?
</source>
This seems like a bug, but it changed between devdb and cloud (so between 5.7.15 and 5.7.24)
* '''Virtual/Generated Columns''': added in 5.7.9 [https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-9.html Source]
* '''Virtual/Generated Columns''': added in 5.7.9 [https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-9.html Source]
* '''JSON Column Data Type''': added in 5.7.8 JSON Data Type: [https://dev.mysql.com/doc/refman/5.7/en/json.html Source]
* '''JSON Column Data Type''': added in 5.7.8 JSON Data Type: [https://dev.mysql.com/doc/refman/5.7/en/json.html Source]

Revision as of 15:00, 18 December 2018

  • Automatic Initialization and Updating for TIMESTAMP and DATETIME: added in 5.6.5 Source
    • Additional Notes:
x INT DEFAULT NULL #works in all versions
x TIMESTAMP DEFAULT NULL #works in some versions, and not in others
x TIMESTAMP NULL DEFAULT NULL #seems to work in all?

This seems like a bug, but it changed between devdb and cloud (so between 5.7.15 and 5.7.24)

  • Virtual/Generated Columns: added in 5.7.9 Source
  • JSON Column Data Type: added in 5.7.8 JSON Data Type: Source