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BITMAP_TO_STRING

bitmap_to_string​

description​

Syntax​

VARCHAR BITMAP_TO_STRING(BITMAP input)

Convert a input BITMAP to a string. The string is a separated string, contains all set bits in Bitmap. If input is null, return null.

example​

mysql> select bitmap_to_string(null);
+------------------------+
| bitmap_to_string(NULL) |
+------------------------+
| NULL |
+------------------------+

mysql> select bitmap_to_string(bitmap_empty());
+----------------------------------+
| bitmap_to_string(bitmap_empty()) |
+----------------------------------+
| |
+----------------------------------+

mysql> select bitmap_to_string(to_bitmap(1));
+--------------------------------+
| bitmap_to_string(to_bitmap(1)) |
+--------------------------------+
| 1 |
+--------------------------------+

mysql> select bitmap_to_string(bitmap_or(to_bitmap(1), to_bitmap(2)));
+---------------------------------------------------------+
| bitmap_to_string(bitmap_or(to_bitmap(1), to_bitmap(2))) |
+---------------------------------------------------------+
| 1,2 |
+---------------------------------------------------------+

keywords​

BITMAP_TO_STRING,BITMAP