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bitmap_count

bitmap_count

description

Syntax

BITMAP BITMAP_COUNT(BITMAP lhs)

Returns the number of input bitmaps。

example

mysql> select bitmap_count(to_bitmap(1)) cnt;
+------+
| cnt |
+------+
| 1 |
+------+

mysql> select bitmap_count(bitmap_and(to_bitmap(1), to_bitmap(1))) cnt;
+------+
| cnt |
+------+
| 1 |
+------+

keywords

BITMAP_COUNT