HangyuanLiu commented on a change in pull request #1721: Make bitmap_union agg
column support insert into
URL: https://github.com/apache/incubator-doris/pull/1721#discussion_r318972876
##########
File path: docs/documentation/cn/sql-reference/sql-statements/Data
Definition/CREATE TABLE.md
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@@ -301,8 +301,8 @@
(
k1 TINYINT,
k2 DECIMAL(10, 2) DEFAULT "10.5",
- v1 VARCHAR(20) BITMAP_UNION,
- v2 VARCHAR(20) BITMAP_UNION
+ v1 VARCHAR(0) BITMAP_UNION, // 注意： bitmap_union的varchar长度需要指定为0
+ v2 VARCHAR(0) BITMAP_UNION
)
Review comment:
“BITMAP_UNION(expr) :
计算两个Bitmap的交集，返回值是序列化后的Bitmap值”，bitmap.md文档中，我觉得这里应该是“并集”
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