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[Function] Add BE udf bitmap_xor (#5098)

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this function will return the xor result of inputs two bitmap .
This commit is contained in:
lihuigang
2021-01-04 09:27:46 +08:00
committed by GitHub
parent a8b8c4760c
commit 05ac7fcd4a
6 changed files with 191 additions and 0 deletions
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21
be/src/exprs/bitmap_function.cpp
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@ -477,6 +477,27 @@ StringVal BitmapFunctions::bitmap_and(FunctionContext* ctx, const StringVal& lhs
return serialize(ctx, &bitmap);
}
StringVal BitmapFunctions::bitmap_xor(FunctionContext* ctx, const StringVal& lhs,
const StringVal& rhs) {
if (lhs.is_null || rhs.is_null) {
return StringVal::null();
}
BitmapValue bitmap;
if (lhs.len == 0) {
bitmap |= *reinterpret_cast<BitmapValue*>(lhs.ptr);
} else {
bitmap |= BitmapValue((char*)lhs.ptr);
}
if (rhs.len == 0) {
bitmap ^= *reinterpret_cast<BitmapValue*>(rhs.ptr);
} else {
bitmap ^= BitmapValue((char*)rhs.ptr);
}
return serialize(ctx, &bitmap);
}
StringVal BitmapFunctions::bitmap_to_string(FunctionContext* ctx, const StringVal& input) {
if (input.is_null) {
return StringVal::null();