amorynan commented on code in PR #15966:
URL: https://github.com/apache/doris/pull/15966#discussion_r1084803369
##########
be/src/olap/rowset/segment_v2/column_writer.cpp:
##########
@@ -173,6 +173,119 @@ Status ColumnWriter::create(const ColumnWriterOptions&
opts, const TabletColumn*
*writer = std::move(writer_local);
return Status::OK();
}
+ case FieldType::OLAP_FIELD_TYPE_MAP: {
+ DCHECK(column->get_subtype_count() == 2);
+ // todo . here key and value is array only?
+ const TabletColumn& key_column = column->get_sub_column(0); //
field_type is true key and value
+ const TabletColumn& value_column = column->get_sub_column(1);
+
+ // create null writer
+ ScalarColumnWriter* null_writer = nullptr;
+ if (opts.meta->is_nullable()) {
+ FieldType null_type = FieldType::OLAP_FIELD_TYPE_TINYINT;
+ ColumnWriterOptions null_options;
+ null_options.meta = opts.meta->add_children_columns();
+ null_options.meta->set_column_id(3);
+ null_options.meta->set_unique_id(3);
+ null_options.meta->set_type(null_type);
+ null_options.meta->set_is_nullable(false);
+ null_options.meta->set_length(
+
get_scalar_type_info<OLAP_FIELD_TYPE_TINYINT>()->size());
+ null_options.meta->set_encoding(DEFAULT_ENCODING);
+ null_options.meta->set_compression(opts.meta->compression());
+
+ null_options.need_zone_map = false;
+ null_options.need_bloom_filter = false;
+ null_options.need_bitmap_index = false;
+
+ TabletColumn null_column = TabletColumn(
+ OLAP_FIELD_AGGREGATION_NONE, null_type, false,
+ null_options.meta->unique_id(),
null_options.meta->length());
+ null_column.set_name("nullable");
+ null_column.set_index_length(-1); // no short key index
+ std::unique_ptr<Field>
null_field(FieldFactory::create(null_column));
+ null_writer =
+ new ScalarColumnWriter(null_options,
std::move(null_field), file_writer);
+ }
+
+ // create key writer
+ std::unique_ptr<ColumnWriter> key_writer;
+ ColumnWriterOptions key_opts;
+ TabletColumn key_list_column(OLAP_FIELD_AGGREGATION_NONE,
OLAP_FIELD_TYPE_ARRAY);
+ {
+
key_list_column.add_sub_column(const_cast<TabletColumn&>(key_column));
+// key_list_column.add_sub_column(key_column);
+ key_list_column.set_name("map.key");
+ key_list_column.set_index_length(-1);
+
+
+ key_opts.meta = opts.meta->mutable_children_columns(0);
+ key_opts.meta->set_column_id(4);
+ key_opts.meta->set_unique_id(4);
+ key_opts.meta->set_type(OLAP_FIELD_TYPE_ARRAY);
+ key_opts.meta->set_length(0);
+ key_opts.meta->set_encoding(BIT_SHUFFLE);
+
key_opts.meta->set_compression(segment_v2::CompressionTypePB::LZ4F);
+ key_opts.need_zone_map = false;
+ // no need key array's null map
+ key_opts.meta->set_is_nullable(false);
+
+ ColumnMetaPB* child_meta =
key_opts.meta->add_children_columns();
Review Comment:
I can use opts.meta directly
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org
For additional commands, e-mail: commits-h...@doris.apache.org
