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use crate::{
array::{new_empty_array, Array, NullArray, PrimitiveArray},
datatypes::DataType,
error::Result,
types::Index,
};
mod binary;
mod boolean;
mod dict;
mod generic_binary;
mod list;
mod primitive;
mod structure;
mod utf8;
pub(crate) use boolean::take as take_boolean;
pub fn take<O: Index>(values: &dyn Array, indices: &PrimitiveArray<O>) -> Result<Box<dyn Array>> {
if indices.len() == 0 {
return Ok(new_empty_array(values.data_type().clone()));
}
use crate::datatypes::PhysicalType::*;
match values.data_type().to_physical_type() {
Null => Ok(Box::new(NullArray::new(
values.data_type().clone(),
indices.len(),
))),
Boolean => {
let values = values.as_any().downcast_ref().unwrap();
Ok(Box::new(boolean::take::<O>(values, indices)))
}
Primitive(primitive) => with_match_primitive_type!(primitive, |$T| {
let values = values.as_any().downcast_ref().unwrap();
Ok(Box::new(primitive::take::<$T, _>(&values, indices)))
}),
Utf8 => {
let values = values.as_any().downcast_ref().unwrap();
Ok(Box::new(utf8::take::<i32, _>(values, indices)))
}
LargeUtf8 => {
let values = values.as_any().downcast_ref().unwrap();
Ok(Box::new(utf8::take::<i64, _>(values, indices)))
}
Binary => {
let values = values.as_any().downcast_ref().unwrap();
Ok(Box::new(binary::take::<i32, _>(values, indices)))
}
LargeBinary => {
let values = values.as_any().downcast_ref().unwrap();
Ok(Box::new(binary::take::<i64, _>(values, indices)))
}
Dictionary(key_type) => {
match_integer_type!(key_type, |$T| {
let values = values.as_any().downcast_ref().unwrap();
Ok(Box::new(dict::take::<$T, _>(&values, indices)))
})
}
Struct => {
let array = values.as_any().downcast_ref().unwrap();
Ok(Box::new(structure::take::<_>(array, indices)?))
}
List => {
let array = values.as_any().downcast_ref().unwrap();
Ok(Box::new(list::take::<i32, O>(array, indices)))
}
LargeList => {
let array = values.as_any().downcast_ref().unwrap();
Ok(Box::new(list::take::<i64, O>(array, indices)))
}
t => unimplemented!("Take not supported for data type {:?}", t),
}
}
pub fn can_take(data_type: &DataType) -> bool {
matches!(
data_type,
DataType::Null
| DataType::Boolean
| DataType::Int8
| DataType::Int16
| DataType::Int32
| DataType::Date32
| DataType::Time32(_)
| DataType::Interval(_)
| DataType::Int64
| DataType::Date64
| DataType::Time64(_)
| DataType::Duration(_)
| DataType::Timestamp(_, _)
| DataType::UInt8
| DataType::UInt16
| DataType::UInt32
| DataType::UInt64
| DataType::Float16
| DataType::Float32
| DataType::Float64
| DataType::Decimal(_, _)
| DataType::Utf8
| DataType::LargeUtf8
| DataType::Binary
| DataType::LargeBinary
| DataType::Struct(_)
| DataType::List(_)
| DataType::LargeList(_)
| DataType::Dictionary(..)
)
}