presto-base-jdbc/src/main/java/io/prestosql/plugin/jdbc/BaseJdbcClient.java/BaseJdbcClient/dropTable
class BaseJdbcClient:    @Override
    public void dropTable(JdbcIdentity identity, JdbcTableHandle handle)
    {
        String sql = "DROP TABLE " + quoted(handle.getCatalogName(), handle.getSchemaName(), handle.getTableName());

        try (Connection connection = connectionFactory.openConnection(identity)) {
            execute(connection, sql);
        }
        catch (SQLException e) {
            throw new PrestoException(JDBC_ERROR, e);
        }
    }