AshinGau commented on code in PR #30119:
URL: https://github.com/apache/doris/pull/30119#discussion_r1458304744
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be/src/vec/exec/format/parquet/parquet_column_convert.h:
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@@ -671,8 +683,16 @@ inline Status get_converter(tparquet::Type::type
parquet_physical_type, Primitiv
break;
case TypeIndex::DateTimeV2:
if (tparquet::Type::INT96 == parquet_physical_type) {
+ // int96 only stores nanoseconds in standard parquet file
+ convert_params->reset_time_scale_if_missing(9);
*converter = std::make_unique<Int96toTimestamp>();
} else if (tparquet::Type::INT64 == parquet_physical_type) {
+ int ts_scale = remove_nullable(dst_data_type)->get_scale();
+ int scale = 6;
+ if (ts_scale <= 3) {
Review Comment:
In the Parquet standard, there are indeed only four precisions: seconds (0),
milliseconds (3), microseconds (6), and nanoseconds (9). Does this
implementation ignore the situation where the precision is seconds(0). Then, if
this rule is universal, you can write the rule to `reset_time_scale_if_missing
`.
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