fix: remove pg_catalog prefix for unknown types in deparser

- Remove 'pg_catalog.' prefix from getPgCatalogTypeName() default case
- Remove 'pg_catalog.bpchar' fallback, use just 'bpchar'
- Remove 'pg_catalog.float4' for real type, use just 'float4'

This fixes issues with extension types like citext, hstore, ltree, etc.
that don't live in pg_catalog but in the schema where the extension
is installed (typically public).

PostgreSQL automatically searches pg_catalog first via the implicit
search_path, so explicit qualification is unnecessary for built-in
types and incorrect for extension types.

Fixes: constructive-io/constructive-planning#477

Author: pyramation

packages/deparser/src/deparser.ts

@@ -2199,7 +2199,7 @@ export class Deparser implements DeparserVisitor {
         if (size != null) {
           return 'char';
         }
-        return 'pg_catalog.bpchar';
+        return 'bpchar';
       case 'varchar':
         return 'varchar';
       case 'numeric':
@@ -2213,7 +2213,7 @@ export class Deparser implements DeparserVisitor {
       case 'int8':
         return 'bigint';
       case 'real':
-        return 'pg_catalog.float4';
+        return 'float4';
       case 'time':
         return 'time';
       case 'timestamp':
@@ -2223,7 +2223,7 @@ export class Deparser implements DeparserVisitor {
       case 'bit':
         return 'bit';
       default:
-        return `pg_catalog.${typeName}`;
+        return typeName;
     }
   }