morningman commented on a change in pull request #2902: bitmap_union_count
support window function
URL: https://github.com/apache/incubator-doris/pull/2902#discussion_r379903105
##########
File path: be/src/exprs/bitmap_function.h
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@@ -46,6 +46,9 @@ class BitmapFunctions {
// the input src's ptr need to point a BitmapValue, this function will
release the
// BitmapValue memory
static BigIntVal bitmap_finalize(FunctionContext* ctx, const StringVal&
src);
+ // Get the bitmap cardinality, the difference from bitmap_finalize method
is
+ // bitmap_get_value method doesn't free memory
+ static BigIntVal bitmap_get_value(FunctionContext* ctx, const StringVal&
src);
Review comment:
How about `bitmap_get_cardinality` ?
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