chore(postgres): improve article about rds, start recording scripts for databases

snippets/postgresql.sql

@@ -0,0 +1,33 @@
+-- Close the connection to the current DB
+\q
+
+-- Show extensions.
+SELECT "*" FROM "pg_extension";
+SELECT "extname" FROM "pg_extension";
+
+-- Add extensions
+CREATE EXTENSION "pg_transport";
+CREATE EXTENSION IF NOT EXISTS "pgaudit";
+
+-- Remove extensions
+DROP EXTENSION "plpgsql", "btree_gist", … CASCADE;
+
+
+-- Simulate DB transfers
+-- Requires 'pg_transport' to be installed on both the source and destination DBs
+-- Requires 'pg_transport' to be the *only* extension active on the source
+SELECT transport.import_from_server(
+  'up.to.63.chars.source.fqdn', 5432,
+  'source.username', 'source.password', 'source.db',
+  'destination.password',
+  true
+);
+-- Run DB transfers
+-- Requires 'pg_transport' to be installed on both the source and destination DBs
+-- Requires 'pg_transport' to be the *only* extension active on the source
+SELECT transport.import_from_server(
+  'up.to.63.chars.source.fqdn', 5432,
+  'source.username', 'source.password', 'source.db',
+  'destination.password',
+  false
+);