Max JSON column length in MySQL

Question

What\'s the max number of characters I can store in a JSON column in MySQL? I don\'t see this mentioned in the MySQL manual.

Answer 1

The size of JSON documents stored in JSON columns is limited to the value of the max_allowed_packet system variable. (While the server manipulates a JSON value internally in memory, it can be larger; the limit applies when the server stores it.)

Command-Line Format --max_allowed_packet=#
System Variable Name    max_allowed_packet
Variable Scope  Global, Session
Dynamic Variable    Yes
Permitted Values    Type    integer
Default 4194304
Min Value   1024
Max Value   1073741824