Parsing postgres scripts fails with when it contains CREATE EXTENSION

[buttilda]

To reproduce attempt formatting this:

CREATE EXTENSION IF NOT EXISTS pgcrypto;

You'll get the following error:

Syntax Error: Unexpected "EXTENSION"
Was expecting to see: "EXTERNAL", "FOREIGN", "FULLTEXT", "GLOBAL", "INDEX", "LOCAL", "MATERIALIZED", "OR", "RECURSIVE", "SEARCH", "SNAPSHOT", "SPATIAL", "TABLE", "TEMP", "TEMPORARY", "TRIGGER", "UNIQUE", "UNLOGGED", "VECTOR", "VIEW", "VIRTUAL", or whitespace
--> undefined:1:8
  |
1 | CREATE EXTENSION IF NOT EXISTS pgcrypto;

[nene]

Thanks for reporting. This happens simply because a large part of PostgreSQL is not yet implemented by the parser.

You can see a work-in-progress list of what is and isn't supported in here: #40

I've created a separate task for the CREATE/ALTER/DROP EXTENSION syntax support and will close this one.