You forgot to quote the identifier as a string literal, so PostgreSQL treats it as a column name - for a column that doesn't exist. Try:
WHERE datname IN ('my_database_identifier');
Note the single quotes.
Pregunta
I followed the instructions to Connect to a heroku database with pgadmin. What might cause the following error?
ERROR: column "*my database identifier*" does not exist.
LINE 9: WHERE datname IN (*my database identifier*)
To be clear my database identifier is the alphanumeric string listed in next to "Database" in HerokuPostgres Connection Settings.
Solución
You forgot to quote the identifier as a string literal, so PostgreSQL treats it as a column name - for a column that doesn't exist. Try:
WHERE datname IN ('my_database_identifier');
Note the single quotes.