eldenmoon commented on code in PR #26749:
URL: https://github.com/apache/doris/pull/26749#discussion_r1393620045
##########
be/src/olap/rowset/segment_v2/segment_iterator.cpp:
##########
@@ -1903,13 +2015,17 @@ Status
SegmentIterator::_next_batch_internal(vectorized::Block* block) {
_block_rowids.resize(_opts.block_row_max);
}
_current_return_columns.resize(_schema->columns().size());
+ _converted_column_ids.resize(_schema->columns().size(), 0);
for (size_t i = 0; i < _schema->num_column_ids(); i++) {
auto cid = _schema->column_id(i);
auto column_desc = _schema->column(cid);
if (_is_pred_column[cid]) {
- RETURN_IF_CATCH_EXCEPTION(_current_return_columns[cid] =
-
Schema::get_predicate_column_ptr(
- *column_desc,
_opts.io_ctx.reader_type));
+ auto storage_column_type = _storage_name_and_type[cid].second;
+ RETURN_IF_CATCH_EXCEPTION(
+ _current_return_columns[cid] =
Schema::get_predicate_column_ptr(
+ _is_char_type[cid] ?
FieldType::OLAP_FIELD_TYPE_CHAR
Review Comment:
Char type is special , since char type's datatype is same with string, both
are `DataTypeString`, but `DataTypeString` only return
`FieldType::OLAP_FIELD_TYPE_STRING` in `get_storage_field_type`.
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