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47 lines
1.6 KiB
Markdown
47 lines
1.6 KiB
Markdown
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---
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slug: /ja/sql-reference/aggregate-functions/reference/groupbitmapxor
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sidebar_position: 151
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title: groupBitmapXor
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---
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ビットマップカラムのXORを計算し、UInt64型の基数を返します。サフィックス-Stateを追加すると、[ビットマップオブジェクト](../../../sql-reference/functions/bitmap-functions.md)を返します。
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``` sql
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groupBitmapOr(expr)
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```
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**引数**
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`expr` – `AggregateFunction(groupBitmap, UInt*)`型を返す式。
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**返される値**
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`UInt64`型の値。
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**例**
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``` sql
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DROP TABLE IF EXISTS bitmap_column_expr_test2;
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CREATE TABLE bitmap_column_expr_test2
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(
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tag_id String,
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z AggregateFunction(groupBitmap, UInt32)
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)
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ENGINE = MergeTree
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ORDER BY tag_id;
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INSERT INTO bitmap_column_expr_test2 VALUES ('tag1', bitmapBuild(cast([1,2,3,4,5,6,7,8,9,10] as Array(UInt32))));
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INSERT INTO bitmap_column_expr_test2 VALUES ('tag2', bitmapBuild(cast([6,7,8,9,10,11,12,13,14,15] as Array(UInt32))));
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INSERT INTO bitmap_column_expr_test2 VALUES ('tag3', bitmapBuild(cast([2,4,6,8,10,12] as Array(UInt32))));
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SELECT groupBitmapXor(z) FROM bitmap_column_expr_test2 WHERE like(tag_id, 'tag%');
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┌─groupBitmapXor(z)─┐
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│ 10 │
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└───────────────────┘
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SELECT arraySort(bitmapToArray(groupBitmapXorState(z))) FROM bitmap_column_expr_test2 WHERE like(tag_id, 'tag%');
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┌─arraySort(bitmapToArray(groupBitmapXorState(z)))─┐
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│ [1,3,5,6,8,10,11,13,14,15] │
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└──────────────────────────────────────────────────┘
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```
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