If you’re using CloudWatch Database Insights and notice that lengthy SQL queries get cut off or seem truncated, you’re probably running into a limit set by the dashboard itself. This restriction is separate from your database’s own settings, like track_activity_query_size and pg_stat_statements.max, which control how much query text your database can store or track.
Even if you’ve configured those database parameters to allow longer queries, CloudWatch Database Insights enforces its own maximum text size for display purposes. That means very long queries might still be cut short on the dashboard, no matter how you’ve set your database parameters.
To fix this problem, the best approach is to shorten your SQL queries so they stay within the maximum size allowed by CloudWatch Database Insights. Reducing the length of the query text ensures it can be fully displayed in the dashboard. Keep in mind, this limitation is on the dashboard side, not with your database setup or data collection.
In summary, if you want your queries to be seen in full in the CloudWatch Database Insights dashboard, make sure they are concise enough to fit within the text size limits. This simple adjustment will help you better analyze and understand your queries without truncation issues.