Postgresql: Check if Schema Exists?

Question

I need to create, manage and drop schemas on the fly. If I go to create a schema that already exists, I want to (conditionally, via external means) drop and recreate it as speci

Answer 1

From http://www.postgresql.org/docs/9.1/static/infoschema-schemata.html (emphasis my own):

The view schemata contains all schemas in the current database that are owned by a currently enabled role.

So your original solution/query is more reliable than Peter's, albeit non-standard.