I have a DB cluster with AWS RDS MySQL serverless. I changed the parameter group group_concat_max_len to 4096, but when run this query: SHOW VARIABLES LIKE '%group_concat%' it gives me 1024 (which is the default value). How can i change it?
1 Answers
For Aurora MySQL Serverless cluster, modifications to only few parameters will take effect. For all other configuration parameters, cluster will use default values even when you modify it. 'group_concat_max_len' is not in the list, so even if you make changes to its value, it will not take effect.
From AWS doc: https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless.how-it-works.html
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