use arrow::array::{
ArrayRef, AsArray as _, BinaryArray, BinaryViewArray, BooleanArray, Date32Array,
Date64Array, Decimal32Array, Decimal64Array, Decimal128Array, Decimal256Array,
DurationMicrosecondArray, DurationMillisecondArray, DurationNanosecondArray,
DurationSecondArray, FixedSizeBinaryArray, Float16Array, Float32Array, Float64Array,
Int8Array, Int16Array, Int32Array, Int64Array, IntervalDayTimeArray,
IntervalMonthDayNanoArray, IntervalYearMonthArray, LargeBinaryArray,
LargeStringArray, StringArray, StringViewArray, Time32MillisecondArray,
Time32SecondArray, Time64MicrosecondArray, Time64NanosecondArray,
TimestampMicrosecondArray, TimestampMillisecondArray, TimestampNanosecondArray,
TimestampSecondArray, UInt8Array, UInt16Array, UInt32Array, UInt64Array,
};
use arrow::compute;
use arrow::datatypes::{DataType, IntervalUnit, TimeUnit};
use datafusion_common::{
DataFusionError, Result, ScalarValue, downcast_value, internal_err,
};
use datafusion_expr_common::accumulator::Accumulator;
use std::{cmp::Ordering, mem::size_of_val};
macro_rules! typed_min_max {
($VALUE:expr, $DELTA:expr, $SCALAR:ident, $OP:ident $(, $EXTRA_ARGS:ident)*) => {{
ScalarValue::$SCALAR(
match ($VALUE, $DELTA) {
(None, None) => None,
(Some(a), None) => Some(*a),
(None, Some(b)) => Some(*b),
(Some(a), Some(b)) => Some((*a).$OP(*b)),
},
$($EXTRA_ARGS.clone()),*
)
}};
}
macro_rules! typed_min_max_float {
($VALUE:expr, $DELTA:expr, $SCALAR:ident, $OP:ident) => {{
ScalarValue::$SCALAR(match ($VALUE, $DELTA) {
(None, None) => None,
(Some(a), None) => Some(*a),
(None, Some(b)) => Some(*b),
(Some(a), Some(b)) => match a.total_cmp(b) {
choose_min_max!($OP) => Some(*b),
_ => Some(*a),
},
})
}};
}
macro_rules! typed_min_max_string {
($VALUE:expr, $DELTA:expr, $SCALAR:ident, $OP:ident) => {{
ScalarValue::$SCALAR(match ($VALUE, $DELTA) {
(None, None) => None,
(Some(a), None) => Some(a.clone()),
(None, Some(b)) => Some(b.clone()),
(Some(a), Some(b)) => Some((a).$OP(b).clone()),
})
}};
}
macro_rules! typed_min_max_string_arg {
($VALUE:expr, $DELTA:expr, $SCALAR:ident, $OP:ident, $ARG:expr) => {{
ScalarValue::$SCALAR(
$ARG,
match ($VALUE, $DELTA) {
(None, None) => None,
(Some(a), None) => Some(a.clone()),
(None, Some(b)) => Some(b.clone()),
(Some(a), Some(b)) => Some((a).$OP(b).clone()),
},
)
}};
}
macro_rules! choose_min_max {
(min) => {
std::cmp::Ordering::Greater
};
(max) => {
std::cmp::Ordering::Less
};
}
macro_rules! interval_min_max {
($OP:tt, $LHS:expr, $RHS:expr) => {{
match $LHS.partial_cmp(&$RHS) {
Some(choose_min_max!($OP)) => $RHS.clone(),
Some(_) => $LHS.clone(),
None => {
return internal_err!(
"Comparison error while computing interval min/max"
);
}
}
}};
}
macro_rules! min_max_generic {
($VALUE:expr, $DELTA:expr, $OP:ident) => {{
if $VALUE.is_null() {
let mut delta_copy = $DELTA.clone();
delta_copy.compact();
delta_copy
} else if $DELTA.is_null() {
$VALUE.clone()
} else {
match $VALUE.partial_cmp(&$DELTA) {
Some(choose_min_max!($OP)) => {
let mut delta_copy = $DELTA.clone();
delta_copy.compact();
delta_copy
}
_ => $VALUE.clone(),
}
}
}};
}
macro_rules! min_max {
($VALUE:expr, $DELTA:expr, $OP:ident) => {{
Ok(match ($VALUE, $DELTA) {
(ScalarValue::Null, ScalarValue::Null) => ScalarValue::Null,
(
lhs @ ScalarValue::Decimal32(lhsv, lhsp, lhss),
rhs @ ScalarValue::Decimal32(rhsv, rhsp, rhss)
) => {
if lhsp.eq(rhsp) && lhss.eq(rhss) {
typed_min_max!(lhsv, rhsv, Decimal32, $OP, lhsp, lhss)
} else {
return internal_err!(
"MIN/MAX is not expected to receive scalars of incompatible types {:?}",
(lhs, rhs)
);
}
}
(
lhs @ ScalarValue::Decimal64(lhsv, lhsp, lhss),
rhs @ ScalarValue::Decimal64(rhsv, rhsp, rhss)
) => {
if lhsp.eq(rhsp) && lhss.eq(rhss) {
typed_min_max!(lhsv, rhsv, Decimal64, $OP, lhsp, lhss)
} else {
return internal_err!(
"MIN/MAX is not expected to receive scalars of incompatible types {:?}",
(lhs, rhs)
);
}
}
(
lhs @ ScalarValue::Decimal128(lhsv, lhsp, lhss),
rhs @ ScalarValue::Decimal128(rhsv, rhsp, rhss)
) => {
if lhsp.eq(rhsp) && lhss.eq(rhss) {
typed_min_max!(lhsv, rhsv, Decimal128, $OP, lhsp, lhss)
} else {
return internal_err!(
"MIN/MAX is not expected to receive scalars of incompatible types {:?}",
(lhs, rhs)
);
}
}
(
lhs @ ScalarValue::Decimal256(lhsv, lhsp, lhss),
rhs @ ScalarValue::Decimal256(rhsv, rhsp, rhss)
) => {
if lhsp.eq(rhsp) && lhss.eq(rhss) {
typed_min_max!(lhsv, rhsv, Decimal256, $OP, lhsp, lhss)
} else {
return internal_err!(
"MIN/MAX is not expected to receive scalars of incompatible types {:?}",
(lhs, rhs)
);
}
}
(ScalarValue::Boolean(lhs), ScalarValue::Boolean(rhs)) => {
typed_min_max!(lhs, rhs, Boolean, $OP)
}
(ScalarValue::Float64(lhs), ScalarValue::Float64(rhs)) => {
typed_min_max_float!(lhs, rhs, Float64, $OP)
}
(ScalarValue::Float32(lhs), ScalarValue::Float32(rhs)) => {
typed_min_max_float!(lhs, rhs, Float32, $OP)
}
(ScalarValue::Float16(lhs), ScalarValue::Float16(rhs)) => {
typed_min_max_float!(lhs, rhs, Float16, $OP)
}
(ScalarValue::UInt64(lhs), ScalarValue::UInt64(rhs)) => {
typed_min_max!(lhs, rhs, UInt64, $OP)
}
(ScalarValue::UInt32(lhs), ScalarValue::UInt32(rhs)) => {
typed_min_max!(lhs, rhs, UInt32, $OP)
}
(ScalarValue::UInt16(lhs), ScalarValue::UInt16(rhs)) => {
typed_min_max!(lhs, rhs, UInt16, $OP)
}
(ScalarValue::UInt8(lhs), ScalarValue::UInt8(rhs)) => {
typed_min_max!(lhs, rhs, UInt8, $OP)
}
(ScalarValue::Int64(lhs), ScalarValue::Int64(rhs)) => {
typed_min_max!(lhs, rhs, Int64, $OP)
}
(ScalarValue::Int32(lhs), ScalarValue::Int32(rhs)) => {
typed_min_max!(lhs, rhs, Int32, $OP)
}
(ScalarValue::Int16(lhs), ScalarValue::Int16(rhs)) => {
typed_min_max!(lhs, rhs, Int16, $OP)
}
(ScalarValue::Int8(lhs), ScalarValue::Int8(rhs)) => {
typed_min_max!(lhs, rhs, Int8, $OP)
}
(ScalarValue::Utf8(lhs), ScalarValue::Utf8(rhs)) => {
typed_min_max_string!(lhs, rhs, Utf8, $OP)
}
(ScalarValue::LargeUtf8(lhs), ScalarValue::LargeUtf8(rhs)) => {
typed_min_max_string!(lhs, rhs, LargeUtf8, $OP)
}
(ScalarValue::Utf8View(lhs), ScalarValue::Utf8View(rhs)) => {
typed_min_max_string!(lhs, rhs, Utf8View, $OP)
}
(ScalarValue::Binary(lhs), ScalarValue::Binary(rhs)) => {
typed_min_max_string!(lhs, rhs, Binary, $OP)
}
(ScalarValue::LargeBinary(lhs), ScalarValue::LargeBinary(rhs)) => {
typed_min_max_string!(lhs, rhs, LargeBinary, $OP)
}
(ScalarValue::FixedSizeBinary(lsize, lhs), ScalarValue::FixedSizeBinary(rsize, rhs)) => {
if lsize == rsize {
typed_min_max_string_arg!(lhs, rhs, FixedSizeBinary, $OP, *lsize)
}
else {
return internal_err!(
"MIN/MAX is not expected to receive FixedSizeBinary of incompatible sizes {:?}",
(lsize, rsize))
}
}
(ScalarValue::BinaryView(lhs), ScalarValue::BinaryView(rhs)) => {
typed_min_max_string!(lhs, rhs, BinaryView, $OP)
}
(ScalarValue::TimestampSecond(lhs, l_tz), ScalarValue::TimestampSecond(rhs, _)) => {
typed_min_max!(lhs, rhs, TimestampSecond, $OP, l_tz)
}
(
ScalarValue::TimestampMillisecond(lhs, l_tz),
ScalarValue::TimestampMillisecond(rhs, _),
) => {
typed_min_max!(lhs, rhs, TimestampMillisecond, $OP, l_tz)
}
(
ScalarValue::TimestampMicrosecond(lhs, l_tz),
ScalarValue::TimestampMicrosecond(rhs, _),
) => {
typed_min_max!(lhs, rhs, TimestampMicrosecond, $OP, l_tz)
}
(
ScalarValue::TimestampNanosecond(lhs, l_tz),
ScalarValue::TimestampNanosecond(rhs, _),
) => {
typed_min_max!(lhs, rhs, TimestampNanosecond, $OP, l_tz)
}
(
ScalarValue::Date32(lhs),
ScalarValue::Date32(rhs),
) => {
typed_min_max!(lhs, rhs, Date32, $OP)
}
(
ScalarValue::Date64(lhs),
ScalarValue::Date64(rhs),
) => {
typed_min_max!(lhs, rhs, Date64, $OP)
}
(
ScalarValue::Time32Second(lhs),
ScalarValue::Time32Second(rhs),
) => {
typed_min_max!(lhs, rhs, Time32Second, $OP)
}
(
ScalarValue::Time32Millisecond(lhs),
ScalarValue::Time32Millisecond(rhs),
) => {
typed_min_max!(lhs, rhs, Time32Millisecond, $OP)
}
(
ScalarValue::Time64Microsecond(lhs),
ScalarValue::Time64Microsecond(rhs),
) => {
typed_min_max!(lhs, rhs, Time64Microsecond, $OP)
}
(
ScalarValue::Time64Nanosecond(lhs),
ScalarValue::Time64Nanosecond(rhs),
) => {
typed_min_max!(lhs, rhs, Time64Nanosecond, $OP)
}
(
ScalarValue::IntervalYearMonth(lhs),
ScalarValue::IntervalYearMonth(rhs),
) => {
typed_min_max!(lhs, rhs, IntervalYearMonth, $OP)
}
(
ScalarValue::IntervalMonthDayNano(lhs),
ScalarValue::IntervalMonthDayNano(rhs),
) => {
typed_min_max!(lhs, rhs, IntervalMonthDayNano, $OP)
}
(
ScalarValue::IntervalDayTime(lhs),
ScalarValue::IntervalDayTime(rhs),
) => {
typed_min_max!(lhs, rhs, IntervalDayTime, $OP)
}
(
ScalarValue::IntervalYearMonth(_),
ScalarValue::IntervalMonthDayNano(_),
) | (
ScalarValue::IntervalYearMonth(_),
ScalarValue::IntervalDayTime(_),
) | (
ScalarValue::IntervalMonthDayNano(_),
ScalarValue::IntervalDayTime(_),
) | (
ScalarValue::IntervalMonthDayNano(_),
ScalarValue::IntervalYearMonth(_),
) | (
ScalarValue::IntervalDayTime(_),
ScalarValue::IntervalYearMonth(_),
) | (
ScalarValue::IntervalDayTime(_),
ScalarValue::IntervalMonthDayNano(_),
) => {
interval_min_max!($OP, $VALUE, $DELTA)
}
(
ScalarValue::DurationSecond(lhs),
ScalarValue::DurationSecond(rhs),
) => {
typed_min_max!(lhs, rhs, DurationSecond, $OP)
}
(
ScalarValue::DurationMillisecond(lhs),
ScalarValue::DurationMillisecond(rhs),
) => {
typed_min_max!(lhs, rhs, DurationMillisecond, $OP)
}
(
ScalarValue::DurationMicrosecond(lhs),
ScalarValue::DurationMicrosecond(rhs),
) => {
typed_min_max!(lhs, rhs, DurationMicrosecond, $OP)
}
(
ScalarValue::DurationNanosecond(lhs),
ScalarValue::DurationNanosecond(rhs),
) => {
typed_min_max!(lhs, rhs, DurationNanosecond, $OP)
}
(
lhs @ ScalarValue::Struct(_),
rhs @ ScalarValue::Struct(_),
) => {
min_max_generic!(lhs, rhs, $OP)
}
(
lhs @ ScalarValue::List(_),
rhs @ ScalarValue::List(_),
) => {
min_max_generic!(lhs, rhs, $OP)
}
(
lhs @ ScalarValue::LargeList(_),
rhs @ ScalarValue::LargeList(_),
) => {
min_max_generic!(lhs, rhs, $OP)
}
(
lhs @ ScalarValue::FixedSizeList(_),
rhs @ ScalarValue::FixedSizeList(_),
) => {
min_max_generic!(lhs, rhs, $OP)
}
e => {
return internal_err!(
"MIN/MAX is not expected to receive scalars of incompatible types {:?}",
e
)
}
})
}};
}
#[derive(Debug, Clone)]
pub struct MaxAccumulator {
max: ScalarValue,
}
impl MaxAccumulator {
pub fn try_new(datatype: &DataType) -> Result<Self> {
Ok(Self {
max: ScalarValue::try_from(datatype)?,
})
}
}
impl Accumulator for MaxAccumulator {
fn update_batch(&mut self, values: &[ArrayRef]) -> Result<()> {
let values = &values[0];
let delta = &max_batch(values)?;
let new_max: Result<ScalarValue, DataFusionError> =
min_max!(&self.max, delta, max);
self.max = new_max?;
Ok(())
}
fn merge_batch(&mut self, states: &[ArrayRef]) -> Result<()> {
self.update_batch(states)
}
fn state(&mut self) -> Result<Vec<ScalarValue>> {
Ok(vec![self.evaluate()?])
}
fn evaluate(&mut self) -> Result<ScalarValue> {
Ok(self.max.clone())
}
fn size(&self) -> usize {
size_of_val(self) - size_of_val(&self.max) + self.max.size()
}
}
#[derive(Debug, Clone)]
pub struct MinAccumulator {
min: ScalarValue,
}
impl MinAccumulator {
pub fn try_new(datatype: &DataType) -> Result<Self> {
Ok(Self {
min: ScalarValue::try_from(datatype)?,
})
}
}
impl Accumulator for MinAccumulator {
fn state(&mut self) -> Result<Vec<ScalarValue>> {
Ok(vec![self.evaluate()?])
}
fn update_batch(&mut self, values: &[ArrayRef]) -> Result<()> {
let values = &values[0];
let delta = &min_batch(values)?;
let new_min: Result<ScalarValue, DataFusionError> =
min_max!(&self.min, delta, min);
self.min = new_min?;
Ok(())
}
fn merge_batch(&mut self, states: &[ArrayRef]) -> Result<()> {
self.update_batch(states)
}
fn evaluate(&mut self) -> Result<ScalarValue> {
Ok(self.min.clone())
}
fn size(&self) -> usize {
size_of_val(self) - size_of_val(&self.min) + self.min.size()
}
}
macro_rules! typed_min_max_batch_string {
($VALUES:expr, $ARRAYTYPE:ident, $SCALAR:ident, $OP:ident) => {{
let array = downcast_value!($VALUES, $ARRAYTYPE);
let value = compute::$OP(array);
let value = value.and_then(|e| Some(e.to_string()));
ScalarValue::$SCALAR(value)
}};
}
macro_rules! typed_min_max_batch_binary {
($VALUES:expr, $ARRAYTYPE:ident, $SCALAR:ident, $OP:ident) => {{
let array = downcast_value!($VALUES, $ARRAYTYPE);
let value = compute::$OP(array);
let value = value.and_then(|e| Some(e.to_vec()));
ScalarValue::$SCALAR(value)
}};
}
macro_rules! typed_min_max_batch {
($VALUES:expr, $ARRAYTYPE:ident, $SCALAR:ident, $OP:ident $(, $EXTRA_ARGS:ident)*) => {{
let array = downcast_value!($VALUES, $ARRAYTYPE);
let value = compute::$OP(array);
ScalarValue::$SCALAR(value, $($EXTRA_ARGS.clone()),*)
}};
}
macro_rules! min_max_batch {
($VALUES:expr, $OP:ident) => {{
match $VALUES.data_type() {
DataType::Null => ScalarValue::Null,
DataType::Decimal32(precision, scale) => {
typed_min_max_batch!(
$VALUES,
Decimal32Array,
Decimal32,
$OP,
precision,
scale
)
}
DataType::Decimal64(precision, scale) => {
typed_min_max_batch!(
$VALUES,
Decimal64Array,
Decimal64,
$OP,
precision,
scale
)
}
DataType::Decimal128(precision, scale) => {
typed_min_max_batch!(
$VALUES,
Decimal128Array,
Decimal128,
$OP,
precision,
scale
)
}
DataType::Decimal256(precision, scale) => {
typed_min_max_batch!(
$VALUES,
Decimal256Array,
Decimal256,
$OP,
precision,
scale
)
}
DataType::Float64 => {
typed_min_max_batch!($VALUES, Float64Array, Float64, $OP)
}
DataType::Float32 => {
typed_min_max_batch!($VALUES, Float32Array, Float32, $OP)
}
DataType::Float16 => {
typed_min_max_batch!($VALUES, Float16Array, Float16, $OP)
}
DataType::Int64 => typed_min_max_batch!($VALUES, Int64Array, Int64, $OP),
DataType::Int32 => typed_min_max_batch!($VALUES, Int32Array, Int32, $OP),
DataType::Int16 => typed_min_max_batch!($VALUES, Int16Array, Int16, $OP),
DataType::Int8 => typed_min_max_batch!($VALUES, Int8Array, Int8, $OP),
DataType::UInt64 => typed_min_max_batch!($VALUES, UInt64Array, UInt64, $OP),
DataType::UInt32 => typed_min_max_batch!($VALUES, UInt32Array, UInt32, $OP),
DataType::UInt16 => typed_min_max_batch!($VALUES, UInt16Array, UInt16, $OP),
DataType::UInt8 => typed_min_max_batch!($VALUES, UInt8Array, UInt8, $OP),
DataType::Timestamp(TimeUnit::Second, tz_opt) => {
typed_min_max_batch!(
$VALUES,
TimestampSecondArray,
TimestampSecond,
$OP,
tz_opt
)
}
DataType::Timestamp(TimeUnit::Millisecond, tz_opt) => typed_min_max_batch!(
$VALUES,
TimestampMillisecondArray,
TimestampMillisecond,
$OP,
tz_opt
),
DataType::Timestamp(TimeUnit::Microsecond, tz_opt) => typed_min_max_batch!(
$VALUES,
TimestampMicrosecondArray,
TimestampMicrosecond,
$OP,
tz_opt
),
DataType::Timestamp(TimeUnit::Nanosecond, tz_opt) => typed_min_max_batch!(
$VALUES,
TimestampNanosecondArray,
TimestampNanosecond,
$OP,
tz_opt
),
DataType::Date32 => typed_min_max_batch!($VALUES, Date32Array, Date32, $OP),
DataType::Date64 => typed_min_max_batch!($VALUES, Date64Array, Date64, $OP),
DataType::Time32(TimeUnit::Second) => {
typed_min_max_batch!($VALUES, Time32SecondArray, Time32Second, $OP)
}
DataType::Time32(TimeUnit::Millisecond) => {
typed_min_max_batch!(
$VALUES,
Time32MillisecondArray,
Time32Millisecond,
$OP
)
}
DataType::Time64(TimeUnit::Microsecond) => {
typed_min_max_batch!(
$VALUES,
Time64MicrosecondArray,
Time64Microsecond,
$OP
)
}
DataType::Time64(TimeUnit::Nanosecond) => {
typed_min_max_batch!(
$VALUES,
Time64NanosecondArray,
Time64Nanosecond,
$OP
)
}
DataType::Interval(IntervalUnit::YearMonth) => {
typed_min_max_batch!(
$VALUES,
IntervalYearMonthArray,
IntervalYearMonth,
$OP
)
}
DataType::Interval(IntervalUnit::DayTime) => {
typed_min_max_batch!($VALUES, IntervalDayTimeArray, IntervalDayTime, $OP)
}
DataType::Interval(IntervalUnit::MonthDayNano) => {
typed_min_max_batch!(
$VALUES,
IntervalMonthDayNanoArray,
IntervalMonthDayNano,
$OP
)
}
DataType::Duration(TimeUnit::Second) => {
typed_min_max_batch!($VALUES, DurationSecondArray, DurationSecond, $OP)
}
DataType::Duration(TimeUnit::Millisecond) => {
typed_min_max_batch!(
$VALUES,
DurationMillisecondArray,
DurationMillisecond,
$OP
)
}
DataType::Duration(TimeUnit::Microsecond) => {
typed_min_max_batch!(
$VALUES,
DurationMicrosecondArray,
DurationMicrosecond,
$OP
)
}
DataType::Duration(TimeUnit::Nanosecond) => {
typed_min_max_batch!(
$VALUES,
DurationNanosecondArray,
DurationNanosecond,
$OP
)
}
other => {
return datafusion_common::internal_err!(
"Min/Max accumulator not implemented for type {}",
other
);
}
}
}};
}
pub fn min_batch(values: &ArrayRef) -> Result<ScalarValue> {
Ok(match values.data_type() {
DataType::Utf8 => {
typed_min_max_batch_string!(values, StringArray, Utf8, min_string)
}
DataType::LargeUtf8 => {
typed_min_max_batch_string!(values, LargeStringArray, LargeUtf8, min_string)
}
DataType::Utf8View => {
typed_min_max_batch_string!(
values,
StringViewArray,
Utf8View,
min_string_view
)
}
DataType::Boolean => {
typed_min_max_batch!(values, BooleanArray, Boolean, min_boolean)
}
DataType::Binary => {
typed_min_max_batch_binary!(&values, BinaryArray, Binary, min_binary)
}
DataType::LargeBinary => {
typed_min_max_batch_binary!(
&values,
LargeBinaryArray,
LargeBinary,
min_binary
)
}
DataType::FixedSizeBinary(size) => {
let array = downcast_value!(&values, FixedSizeBinaryArray);
let value = compute::min_fixed_size_binary(array);
let value = value.map(|e| e.to_vec());
ScalarValue::FixedSizeBinary(*size, value)
}
DataType::BinaryView => {
typed_min_max_batch_binary!(
&values,
BinaryViewArray,
BinaryView,
min_binary_view
)
}
DataType::Struct(_) => min_max_batch_generic(values, Ordering::Greater)?,
DataType::List(_) => min_max_batch_generic(values, Ordering::Greater)?,
DataType::LargeList(_) => min_max_batch_generic(values, Ordering::Greater)?,
DataType::FixedSizeList(_, _) => {
min_max_batch_generic(values, Ordering::Greater)?
}
DataType::Dictionary(_, _) => {
let values = values.as_any_dictionary().values();
min_batch(values)?
}
_ => min_max_batch!(values, min),
})
}
fn min_max_batch_generic(array: &ArrayRef, ordering: Ordering) -> Result<ScalarValue> {
if array.len() == array.null_count() {
return ScalarValue::try_from(array.data_type());
}
let mut extreme = ScalarValue::try_from_array(array, 0)?;
for i in 1..array.len() {
let current = ScalarValue::try_from_array(array, i)?;
if current.is_null() {
continue;
}
if extreme.is_null() {
extreme = current;
continue;
}
let cmp = extreme.try_cmp(¤t)?;
if cmp == ordering {
extreme = current;
}
}
Ok(extreme)
}
pub fn max_batch(values: &ArrayRef) -> Result<ScalarValue> {
Ok(match values.data_type() {
DataType::Utf8 => {
typed_min_max_batch_string!(values, StringArray, Utf8, max_string)
}
DataType::LargeUtf8 => {
typed_min_max_batch_string!(values, LargeStringArray, LargeUtf8, max_string)
}
DataType::Utf8View => {
typed_min_max_batch_string!(
values,
StringViewArray,
Utf8View,
max_string_view
)
}
DataType::Boolean => {
typed_min_max_batch!(values, BooleanArray, Boolean, max_boolean)
}
DataType::Binary => {
typed_min_max_batch_binary!(&values, BinaryArray, Binary, max_binary)
}
DataType::BinaryView => {
typed_min_max_batch_binary!(
&values,
BinaryViewArray,
BinaryView,
max_binary_view
)
}
DataType::LargeBinary => {
typed_min_max_batch_binary!(
&values,
LargeBinaryArray,
LargeBinary,
max_binary
)
}
DataType::FixedSizeBinary(size) => {
let array = downcast_value!(&values, FixedSizeBinaryArray);
let value = compute::max_fixed_size_binary(array);
let value = value.map(|e| e.to_vec());
ScalarValue::FixedSizeBinary(*size, value)
}
DataType::Struct(_) => min_max_batch_generic(values, Ordering::Less)?,
DataType::List(_) => min_max_batch_generic(values, Ordering::Less)?,
DataType::LargeList(_) => min_max_batch_generic(values, Ordering::Less)?,
DataType::FixedSizeList(_, _) => min_max_batch_generic(values, Ordering::Less)?,
DataType::Dictionary(_, _) => {
let values = values.as_any_dictionary().values();
max_batch(values)?
}
_ => min_max_batch!(values, max),
})
}