BITMAP_AND

Description

Computes the intersection of two or more input BITMAPs and returns a new BITMAP.

Syntax

BITMAP_AND(<bitmap>, <bitmap>,[, <bitmap>...])

Parameters

Parameter	Description
<bitmap>	One of the original BITMAPs whose intersection is being sought

Return Value

Returns a BITMAP

• If the parameter has a null value, it returns NULL

Examples

select bitmap_to_string(bitmap_and(bitmap_from_string('1,2,3'), bitmap_from_string('1,2'), bitmap_from_string('1,2,3,4,5')));

+-----------------------------------------------------------------------------------------------------------------------+
| bitmap_to_string(bitmap_and(bitmap_from_string('1,2,3'), bitmap_from_string('1,2'), bitmap_from_string('1,2,3,4,5'))) |
+-----------------------------------------------------------------------------------------------------------------------+
| 1,2                                                                                                                   |
+-----------------------------------------------------------------------------------------------------------------------+

select bitmap_to_string(bitmap_and(bitmap_from_string('1,2,3'), bitmap_from_string('1,2'), bitmap_from_string('1,2,3,4,5'),bitmap_empty()));

+---------------------------------------------------------------------------------------------------------------------------------------+
| bitmap_to_string(bitmap_and(bitmap_from_string('1,2,3'), bitmap_from_string('1,2'), bitmap_from_string('1,2,3,4,5'), bitmap_empty())) |
+---------------------------------------------------------------------------------------------------------------------------------------+
|                                                                                                                                       |
+---------------------------------------------------------------------------------------------------------------------------------------+

select bitmap_to_string(bitmap_and(bitmap_from_string('1,2,3'), bitmap_from_string('1,2'), bitmap_from_string('1,2,3,4,5'),NULL));

+-----------------------------------------------------------------------------------------------------------------------------+
| bitmap_to_string(bitmap_and(bitmap_from_string('1,2,3'), bitmap_from_string('1,2'), bitmap_from_string('1,2,3,4,5'), NULL)) |
+-----------------------------------------------------------------------------------------------------------------------------+
| NULL                                                                                                                        |
+-----------------------------------------------------------------------------------------------------------------------------+