EmmyMiao87 commented on a change in pull request #3571:
URL: https://github.com/apache/incubator-doris/pull/3571#discussion_r427945170
##########
File path:
docs/en/sql-reference/sql-functions/bitmap-functions/bitmap_intersect.md
##########
@@ -0,0 +1,54 @@
+---
+{
+ "title": "bitmap_intersect",
+ "language": "en"
Review comment:
Added
##########
File path: be/src/exprs/bitmap_function.cpp
##########
@@ -302,6 +302,31 @@ void BitmapFunctions::bitmap_union(FunctionContext* ctx,
const StringVal& src, S
}
}
+// this is the read init function for bitmap_intersect
+void BitmapFunctions::bitmap_intersect_init_real(FunctionContext* ctx,
StringVal* dst) {
+ dst->is_null = true;
Review comment:
The initial result bitmap must be null. Otherwise, the intersection
between dst and src will be empty.
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