How to install PostgreSQL's hstore to your default database template
I’ve started using PostgreSQL’s hstore extention and data type. There are a few good resources out there about how to get this running in Rails.
It was working well for development and production but when I ran my tests and reset my test database, I kept running into errors. Even though I created the extension in my migration, the schema file didn’t have that recorded so it failed every time:
PG::Error: ERROR: type "hstore" does not exist
The first article I referenced suggested I add hstore to the default template. My first attempts failed because the only sql files I could find threw errors when I tried to add them to the default db template. So here’s what I did.
hstore.sql in the contrib directory. (Mine was at
CREATE EXTENSION hstore;
Then I ran this command to add it to the template:
psql -f /usr/local/Cellar/postgresql/9.2.1/share/postgresql/extension/hstore.sql -d template1
db:test:prepare works great!