Support bitmap_empty function (#2227)

2019-11-18 20:37:00 +08:00
parent 626001fae4
commit d8cfbbedf7
12 changed files with 67 additions and 35 deletions
--- a/docs/documentation/en/sql-reference/sql-functions/aggregate-functions/bitmap_EN.md
+++ b/docs/documentation/en/sql-reference/sql-functions/aggregate-functions/bitmap_EN.md
@ -31,6 +31,8 @@ under the License.

 `BITMAP_UNION_INT(expr)` : Calculate the distinct value number of TINYINT,SMALLINT and INT type column. Same as COUNT(DISTINCT expr)

+`BITMAP_EMPTY()`: Generate empty bitmap column for insert into or load data.
+
 Notice：

 	1. TO_BITMAP function only receives TINYINT,SMALLINT,INT.