breaking out fixture processing files into two steps

src/pg/test/sql/03_drop_fixtures.sql

@@ -0,0 +1,30 @@
+SET client_min_messages TO NOTICE;
+\set ECHO none
+
+-- metadata
+\echo Dropping obs_table.sql fixture table...
+DROP TABLE observatory.obs_table;
+\echo Done.
+
+\echo Dropping obs_column.sql fixture table...
+DROP TABLE observatory.obs_column;
+\echo Done.
+
+\echo Dropping obs_column_table.sql fixture table...
+DROP TABLE observatory.obs_column_table;
+\echo Done.
+
+\echo Dropping obs_column_to_column.sql fixture table...
+DROP TABLE observatory.obs_column_to_column;
+\echo Done.
+
+-- data
+\echo Dropping obs_85328201013baa14e8e8a4a57a01e6f6fbc5f9b1 fixture table...
+DROP TABLE observatory.obs_85328201013baa14e8e8a4a57a01e6f6fbc5f9b1;
+\echo Done.
+
+\echo Dropping obs_3e7cc9cfd403b912c57b42d5f9195af9ce2f3cdb fixture table...
+DROP TABLE observatory.obs_3e7cc9cfd403b912c57b42d5f9195af9ce2f3cdb;
+\echo Done.
+
+\unset ECHO