yiguolei commented on code in PR #51486:
URL: https://github.com/apache/doris/pull/51486#discussion_r2141642033
##########
be/src/vec/data_types/serde/data_type_datetimev2_serde.cpp:
##########
@@ -36,6 +37,30 @@ namespace doris::vectorized {
static const int64_t micr_to_nano_second = 1000;
#include "common/compile_check_begin.h"
+Status DataTypeDateTimeV2SerDe::serialize_column_to_text(const IColumn&
column, int64_t row_num,
+ BufferWritable& bw)
const {
+ DataTypeSerDe::write_left_quotation(bw);
+ UInt64 int_val = assert_cast<const
ColumnDateTimeV2&>(column).get_element(row_num);
Review Comment:
这个函数接口是单个元素到stream 里，我们这个assert cast，默认是要检查类型是否一样的，会不会性能很差？
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