Postgresql Column Not Found, But Shows in Describe

Question

There have been similar posts, but none helped me solve my problem.

I am trying to do a simple select on a table, retrieving only one column. The column shows in the

Answer 1

Why do you use ` in column name?

You can use it without any quote characters, while with quote characters it may be case sensitive. Also such quote char is ", and not `

So use:

select "transactionAmount" 
from ... 
where ... 
group by "transactionAmount";

Read about identifiers at: http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html