How to add a JSON column in MySQL with Rails 5 Migration

Question

I'm trying to add a json column in MySQL db by running:

class AddStatisticsToPlayerStatistic < ActiveRecord::Migration[5.0]
    def change
       add_column :player_statistics, :statistics, :json
    end
end

But I'm getting this error when I try to run rake db:migrate

Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'json' at line 1: ALTER TABLE `player_statistics` ADD `statistics` json

Does anyone know how to add a JSON column in MySQL Ver 14.14 Distrib 5.5.53. properly?

Thanks in advance!

MySQL 5.5... from the docs JSON native data type starts from 5.7 - [json](https://dev.mysql.com/doc/refman/5.7/en/json.html) — Mat, Dec 24 '16 at 12:33
I was so blind I've already updated to MySQL 5.7 and it's working. — Antonio682, Dec 24 '16 at 12:46
PostgreSQL is a great alternative to MySQL and offers more datatypes including JSON, JSONB and Hstore. These datatypes all supported by the PostgreSQL adapter. Here is some more information about it: http://edgeguides.rubyonrails.org/active_record_postgresql.html — farrows76, Dec 25 '16 at 03:19

score 11 · Accepted Answer · answered Dec 24 '16 at 12:52

11

MySQL docs says that JSON native data type starts from 5.7.8 - json

answered Dec 24 '16 at 12:52

Mat

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This sintaxis worked perfectly when I upgraded my MySQL server. – Antonio682 Dec 24 '16 at 23:47

How to add a JSON column in MySQL with Rails 5 Migration

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