Merge pull request #110 from MikeFitzgerald/master

Fix postgres drop

Author: Prometheus2677

database/postgres/postgres.go

@@ -284,7 +284,7 @@ func (p *Postgres) Version() (version int, dirty bool, err error) {
 
 func (p *Postgres) Drop() error {
 	// select all tables in current schema
-	query := `SELECT table_name FROM information_schema.tables WHERE table_schema=(SELECT current_schema())`
+	query := `SELECT table_name FROM information_schema.tables WHERE table_schema=(SELECT current_schema()) AND table_type='BASE TABLE'`
 	tables, err := p.conn.QueryContext(context.Background(), query)
 	if err != nil {
 		return &database.Error{OrigErr: err, Query: []byte(query)}