public int compare(SqlNode o1, SqlNode o2) { final SqlParserPos pos0 = o1.getParserPosition(); final SqlParserPos pos1 = o2.getParserPosition(); int c = -Utilities.compare( pos0.getLineNum(), pos1.getLineNum()); if (c != 0) { return c; } return -Utilities.compare( pos0.getColumnNum(), pos1.getColumnNum()); }