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Merged
pbower merged 1 commit into from
Sep 20, 2026
Merged

Add Arrow type to mid-level arrays #207

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48 changes: 3 additions & 45 deletions src/enums/array.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2030,52 +2030,10 @@ impl Array {
/// Arrow physical type for this array.
pub fn arrow_type(&self) -> ArrowType {
match self {
Array::NumericArray(inner) => match inner {
#[cfg(feature = "extended_numeric_types")]
NumericArray::Int8(_) => ArrowType::Int8,
#[cfg(feature = "extended_numeric_types")]
NumericArray::Int16(_) => ArrowType::Int16,
NumericArray::Int32(_) => ArrowType::Int32,
NumericArray::Int64(_) => ArrowType::Int64,
#[cfg(feature = "extended_numeric_types")]
NumericArray::UInt8(_) => ArrowType::UInt8,
#[cfg(feature = "extended_numeric_types")]
NumericArray::UInt16(_) => ArrowType::UInt16,
NumericArray::UInt32(_) => ArrowType::UInt32,
NumericArray::UInt64(_) => ArrowType::UInt64,
NumericArray::Float32(_) => ArrowType::Float32,
NumericArray::Float64(_) => ArrowType::Float64,
#[cfg(feature = "decimal")]
NumericArray::Decimal32(a) => a.arrow_type(),
#[cfg(feature = "decimal")]
NumericArray::Decimal64(a) => a.arrow_type(),
#[cfg(feature = "decimal")]
NumericArray::Decimal128(a) => a.arrow_type(),
NumericArray::Null => ArrowType::Null,
},
Array::TextArray(inner) => match inner {
TextArray::String32(_) => ArrowType::String,
#[cfg(feature = "large_string")]
TextArray::String64(_) => ArrowType::LargeString,
#[cfg(feature = "default_categorical_8")]
TextArray::Categorical8(_) => ArrowType::Dictionary(CategoricalIndexType::UInt8),
#[cfg(feature = "extended_categorical")]
TextArray::Categorical16(_) => ArrowType::Dictionary(CategoricalIndexType::UInt16),
#[cfg(any(
not(feature = "default_categorical_8"),
feature = "extended_categorical"
))]
TextArray::Categorical32(_) => ArrowType::Dictionary(CategoricalIndexType::UInt32),
#[cfg(feature = "extended_categorical")]
TextArray::Categorical64(_) => ArrowType::Dictionary(CategoricalIndexType::UInt64),
TextArray::Null => ArrowType::Null,
},
Array::NumericArray(inner) => inner.arrow_type(),
Array::TextArray(inner) => inner.arrow_type(),
#[cfg(feature = "datetime")]
Array::TemporalArray(inner) => match inner {
TemporalArray::Datetime32(_) => ArrowType::Date32,
TemporalArray::Datetime64(_) => ArrowType::Date64,
TemporalArray::Null => ArrowType::Null,
},
Array::TemporalArray(inner) => inner.arrow_type(),
Array::BooleanArray(_) => ArrowType::Boolean,
Array::Null => ArrowType::Null,
}
Expand Down
58 changes: 30 additions & 28 deletions src/enums/collections/numeric_array.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ use std::{
sync::Arc,
};

use crate::ffi::arrow_dtype::ArrowType;
use crate::{Bitmask, FloatArray, IntegerArray, MaskedArray, Vec64};
use crate::{BooleanArray, StringArray};
#[cfg(feature = "decimal")]
Expand Down Expand Up @@ -189,6 +190,33 @@ macro_rules! decimal_to_str {
}

impl NumericArray {
/// Returns the Arrow physical type for this numeric array.
pub fn arrow_type(&self) -> ArrowType {
match self {
#[cfg(feature = "extended_numeric_types")]
NumericArray::Int8(_) => ArrowType::Int8,
#[cfg(feature = "extended_numeric_types")]
NumericArray::Int16(_) => ArrowType::Int16,
NumericArray::Int32(_) => ArrowType::Int32,
NumericArray::Int64(_) => ArrowType::Int64,
#[cfg(feature = "extended_numeric_types")]
NumericArray::UInt8(_) => ArrowType::UInt8,
#[cfg(feature = "extended_numeric_types")]
NumericArray::UInt16(_) => ArrowType::UInt16,
NumericArray::UInt32(_) => ArrowType::UInt32,
NumericArray::UInt64(_) => ArrowType::UInt64,
NumericArray::Float32(_) => ArrowType::Float32,
NumericArray::Float64(_) => ArrowType::Float64,
#[cfg(feature = "decimal")]
NumericArray::Decimal32(a) => a.arrow_type(),
#[cfg(feature = "decimal")]
NumericArray::Decimal64(a) => a.arrow_type(),
#[cfg(feature = "decimal")]
NumericArray::Decimal128(a) => a.arrow_type(),
NumericArray::Null => ArrowType::Null,
}
}

/// Returns the logical length of the numeric array.
#[inline]
pub fn len(&self) -> usize {
Expand Down Expand Up @@ -1246,40 +1274,14 @@ impl Concatenate for NumericArray {
to: "NumericArray",
message: Some(format!(
"Cannot concatenate mismatched NumericArray variants: {:?} and {:?}",
variant_name(&lhs),
variant_name(&rhs)
lhs.arrow_type(),
rhs.arrow_type()
)),
}),
}
}
}

/// Helper function to get the variant name for error messages
fn variant_name(arr: &NumericArray) -> &'static str {
match arr {
#[cfg(feature = "extended_numeric_types")]
NumericArray::Int8(_) => "Int8",
#[cfg(feature = "extended_numeric_types")]
NumericArray::Int16(_) => "Int16",
NumericArray::Int32(_) => "Int32",
NumericArray::Int64(_) => "Int64",
#[cfg(feature = "extended_numeric_types")]
NumericArray::UInt8(_) => "UInt8",
#[cfg(feature = "extended_numeric_types")]
NumericArray::UInt16(_) => "UInt16",
NumericArray::UInt32(_) => "UInt32",
NumericArray::UInt64(_) => "UInt64",
NumericArray::Float32(_) => "Float32",
NumericArray::Float64(_) => "Float64",
#[cfg(feature = "decimal")]
NumericArray::Decimal32(_) => "Decimal32",
#[cfg(feature = "decimal")]
NumericArray::Decimal64(_) => "Decimal64",
#[cfg(feature = "decimal")]
NumericArray::Decimal128(_) => "Decimal128",
NumericArray::Null => "Null",
}
}

// ---------------------------------------------------------------------------
// From impls - DecimalArray -> NumericArray
Expand Down
27 changes: 14 additions & 13 deletions src/enums/collections/temporal_array.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ use std::{
sync::Arc,
};

use crate::ffi::arrow_dtype::ArrowType;
use crate::{Bitmask, DatetimeArray, MaskedArray, TimeUnit};
use crate::{
enums::{error::MinarrowError, shape_dim::ShapeDim},
Expand Down Expand Up @@ -92,6 +93,15 @@ pub enum TemporalArray {
}

impl TemporalArray {
/// Returns the Arrow physical type for this temporal array.
pub fn arrow_type(&self) -> ArrowType {
match self {
TemporalArray::Datetime32(_) => ArrowType::Date32,
TemporalArray::Datetime64(_) => ArrowType::Date64,
TemporalArray::Null => ArrowType::Null,
}
}

/// Returns the logical length of the temporal array.
#[inline]
pub fn len(&self) -> usize {
Expand Down Expand Up @@ -225,8 +235,8 @@ impl TemporalArray {
to: "TemporalArray",
message: Some(format!(
"Cannot insert {} into {}: incompatible types",
temporal_variant_name(rhs),
temporal_variant_name(lhs)
rhs.arrow_type(),
lhs.arrow_type()
)),
}),
}
Expand Down Expand Up @@ -327,8 +337,8 @@ impl Concatenate for TemporalArray {
to: "TemporalArray",
message: Some(format!(
"Cannot concatenate mismatched TemporalArray variants: {:?} and {:?}",
temporal_variant_name(&lhs),
temporal_variant_name(&rhs)
lhs.arrow_type(),
rhs.arrow_type()
)),
}),
}
Expand Down Expand Up @@ -672,15 +682,6 @@ impl DatetimeOps for TemporalArray {
}
}

/// Helper function to get the variant name for error messages
fn temporal_variant_name(arr: &TemporalArray) -> &'static str {
match arr {
TemporalArray::Datetime32(_) => "Datetime32",
TemporalArray::Datetime64(_) => "Datetime64",
TemporalArray::Null => "Null",
}
}

impl Display for TemporalArray {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
match self {
Expand Down
46 changes: 24 additions & 22 deletions src/enums/collections/text_array.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ use std::sync::Arc;

use crate::enums::error::MinarrowError;
use crate::enums::shape_dim::ShapeDim;
use crate::ffi::arrow_dtype::{ArrowType, CategoricalIndexType};
use crate::traits::{concatenate::Concatenate, shape::Shape};
use crate::{Bitmask, CategoricalArray, MaskedArray, StringArray};

Expand Down Expand Up @@ -92,6 +93,27 @@ pub enum TextArray {
}

impl TextArray {
/// Returns the Arrow physical type for this text array.
pub fn arrow_type(&self) -> ArrowType {
match self {
TextArray::String32(_) => ArrowType::String,
#[cfg(feature = "large_string")]
TextArray::String64(_) => ArrowType::LargeString,
#[cfg(feature = "default_categorical_8")]
TextArray::Categorical8(_) => ArrowType::Dictionary(CategoricalIndexType::UInt8),
#[cfg(feature = "extended_categorical")]
TextArray::Categorical16(_) => ArrowType::Dictionary(CategoricalIndexType::UInt16),
#[cfg(any(
not(feature = "default_categorical_8"),
feature = "extended_categorical"
))]
TextArray::Categorical32(_) => ArrowType::Dictionary(CategoricalIndexType::UInt32),
#[cfg(feature = "extended_categorical")]
TextArray::Categorical64(_) => ArrowType::Dictionary(CategoricalIndexType::UInt64),
TextArray::Null => ArrowType::Null,
}
}

/// Returns the logical length of the text array.
#[inline]
pub fn len(&self) -> usize {
Expand Down Expand Up @@ -711,31 +733,11 @@ impl Concatenate for TextArray {
to: "TextArray",
message: Some(format!(
"Cannot concatenate mismatched TextArray variants: {:?} and {:?}",
text_variant_name(&lhs),
text_variant_name(&rhs)
lhs.arrow_type(),
rhs.arrow_type()
)),
}),
}
}
}

/// Helper function to get the variant name for error messages
fn text_variant_name(arr: &TextArray) -> &'static str {
match arr {
TextArray::String32(_) => "String32",
#[cfg(feature = "large_string")]
TextArray::String64(_) => "String64",
#[cfg(feature = "default_categorical_8")]
TextArray::Categorical8(_) => "Categorical8",
#[cfg(feature = "extended_categorical")]
TextArray::Categorical16(_) => "Categorical16",
#[cfg(any(
not(feature = "default_categorical_8"),
feature = "extended_categorical"
))]
TextArray::Categorical32(_) => "Categorical32",
#[cfg(feature = "extended_categorical")]
TextArray::Categorical64(_) => "Categorical64",
TextArray::Null => "Null",
}
}
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