amorynan commented on code in PR #24087:
URL: https://github.com/apache/doris/pull/24087#discussion_r1323843100
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be/src/vec/data_types/serde/data_type_nullable_serde.cpp:
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@@ -121,10 +120,11 @@ Status
DataTypeNullableSerDe::deserialize_one_cell_from_json(IColumn& column, Sl
auto& null_column = assert_cast<ColumnNullable&>(column);
// TODO(Amory) make null literal configurable
+ // only slice trim quote return true make sure slice is quoted and
converted_from_string make
+ // sure slice is from string parse , we can parse this "null" literal as
string "null" to
+ // nested column , otherwise we insert null to null column
if (!(options.converted_from_string && slice.trim_quote())) {
- //for map<string,string> type : {"abc","NULL"} , the NULL is string ,
instead of null values
- if (slice.size == 4 && slice[0] == 'N' && slice[1] == 'U' && slice[2]
== 'L' &&
- slice[3] == 'L') {
+ if (Slice::mem_equal("null", slice.data, 4)) {
Review Comment:
in json we do not support NULL just null
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