Replacing a character from mysql table to export to JSON file - mysql

Question

I have a very long sized table (over 4M of records,i work with MySql) and it has a lot of records with this string: \\"
I'm trying to export this table to mongodb, but when I import the JSON file mongodb throws to me this error:
Failed: error processing document #18: invalid character 't' after object key:value pair
this is my query:
MySQL
SELECT json_object(
"id", id,
"execution_id", execution_id,
"type", type,
"info", info,
"position", position,
"created_at", json_object("$date", DATE_FORMAT(created_at,'%Y-%m-%dT%TZ')),
"updated_at", json_object("$date", DATE_FORMAT(updated_at,'%Y-%m-%dT%TZ'))
)as 'json'
FROM myTable
INTO OUTFILE 'myPath';
I know the problem is the string, my question is: how can I change this certain string to \"? Manually change it´s not an option, and my knowledge about query is limited. Please help. Thank you for reading me .
The column that has this character is "info", here is an example:
{
"id": 30,
"execution_id": 2,
"type": "PHASE",
"info": "{ \\r\\n \\"title\\": \\"Phase\\",
\\r\\n \\"order\\": \\"1\\",
\\r\\n \\"description\\": \\"Example Phase 1\\",
\\r\\n \\"step\\": \\"end\\",
\\r\\n \\"status\\": \\"True\\"\\r\\n}",
"position": 24,
"created_at": {"$date": "2018-01-11T15:01:46Z"},
"updated_at": {"$date": "2018-01-11T15:01:46Z"}
}

Answer 1

You should be able to do this using the MySQL REPLACE() function.
The backslash is a bit of a special case in the MySQL REPLACE() function, so you will need to use \\ to represent each literal \, thus to replace \\ with \ you need to run something like this:
REPLACE(info,'\\\\','\\')
Your full query would look something like this:
SELECT json_object(
"id", id,
"execution_id", execution_id,
"type", type,
"info", REPLACE(info,'\\\\','\\'),
"position", position,
"created_at", json_object("$date", DATE_FORMAT(created_at,'%Y-%m-%dT%TZ')),
"updated_at", json_object("$date", DATE_FORMAT(updated_at,'%Y-%m-%dT%TZ'))
)as 'json'
FROM myTable
INTO OUTFILE 'myPath';