ActiveRecord::StatementInvalid. PG Error

Question

I am trying to find a project from Project model using Project.find(id) but it is giving me ActiveRecord::StatementInvalid error

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Answer 1

It's a bug somewhere in your Ruby stack.

It's trying to prepare a statement called "a1" which is examining table/view definitions (presumably for your "project" table). It finds out a prepared statement with the same name already exists and spits out an error. The query it is trying to prepare is fine - it returns a count of how many tables have a given name.

Either it's not tracking its prepared statements properly or it thinks it's deleted one and hasn't really. I'd update rails & activerecord and check for bug reports.