gaodayue commented on a change in pull request #2050: segment_v2: Support
bitmap index build
URL: https://github.com/apache/incubator-doris/pull/2050#discussion_r341096897
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File path: be/src/olap/rowset/segment_v2/column_writer.cpp
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@@ -175,6 +185,9 @@ Status ColumnWriter::append_nullable(
if (_opts.need_zone_map) {
RETURN_IF_ERROR(_column_zone_map_builder->add(nullptr, 1));
}
+ if (_opts.need_bitmap_index) {
+ _bitmap_index_builder->add_nulls(this_run);
Review comment:
I see, you're right. For string column with bitmap index, two dictionaries
are built. One is unordered dictionary for dictionary encoding, the other is
the ordered dictionary for bitmap index.
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