use crate::error::{DataFusionError, Result};
use arrow::{
array::*,
compute::kernels::cast::{cast, cast_with_options, CastOptions},
datatypes::{
ArrowDictionaryKeyType, ArrowNativeType, DataType, Field, Float32Type,
Float64Type, Int16Type, Int32Type, Int64Type, Int8Type, IntervalUnit, TimeUnit,
TimestampMicrosecondType, TimestampMillisecondType, TimestampNanosecondType,
TimestampSecondType, UInt16Type, UInt32Type, UInt64Type, UInt8Type,
DECIMAL_MAX_PRECISION,
},
util::decimal::{BasicDecimal, Decimal128},
};
use ordered_float::OrderedFloat;
use std::cmp::Ordering;
use std::convert::{Infallible, TryInto};
use std::str::FromStr;
use std::{convert::TryFrom, fmt, iter::repeat, sync::Arc};
#[derive(Clone)]
pub enum ScalarValue {
Null,
Boolean(Option<bool>),
Float32(Option<f32>),
Float64(Option<f64>),
Decimal128(Option<i128>, usize, usize),
Int8(Option<i8>),
Int16(Option<i16>),
Int32(Option<i32>),
Int64(Option<i64>),
UInt8(Option<u8>),
UInt16(Option<u16>),
UInt32(Option<u32>),
UInt64(Option<u64>),
Utf8(Option<String>),
LargeUtf8(Option<String>),
Binary(Option<Vec<u8>>),
LargeBinary(Option<Vec<u8>>),
List(Option<Vec<ScalarValue>>, Box<DataType>),
Date32(Option<i32>),
Date64(Option<i64>),
TimestampSecond(Option<i64>, Option<String>),
TimestampMillisecond(Option<i64>, Option<String>),
TimestampMicrosecond(Option<i64>, Option<String>),
TimestampNanosecond(Option<i64>, Option<String>),
IntervalYearMonth(Option<i32>),
IntervalDayTime(Option<i64>),
IntervalMonthDayNano(Option<i128>),
Struct(Option<Vec<ScalarValue>>, Box<Vec<Field>>),
}
impl PartialEq for ScalarValue {
fn eq(&self, other: &Self) -> bool {
use ScalarValue::*;
match (self, other) {
(Decimal128(v1, p1, s1), Decimal128(v2, p2, s2)) => {
v1.eq(v2) && p1.eq(p2) && s1.eq(s2)
}
(Decimal128(_, _, _), _) => false,
(Boolean(v1), Boolean(v2)) => v1.eq(v2),
(Boolean(_), _) => false,
(Float32(v1), Float32(v2)) => {
let v1 = v1.map(OrderedFloat);
let v2 = v2.map(OrderedFloat);
v1.eq(&v2)
}
(Float32(_), _) => false,
(Float64(v1), Float64(v2)) => {
let v1 = v1.map(OrderedFloat);
let v2 = v2.map(OrderedFloat);
v1.eq(&v2)
}
(Float64(_), _) => false,
(Int8(v1), Int8(v2)) => v1.eq(v2),
(Int8(_), _) => false,
(Int16(v1), Int16(v2)) => v1.eq(v2),
(Int16(_), _) => false,
(Int32(v1), Int32(v2)) => v1.eq(v2),
(Int32(_), _) => false,
(Int64(v1), Int64(v2)) => v1.eq(v2),
(Int64(_), _) => false,
(UInt8(v1), UInt8(v2)) => v1.eq(v2),
(UInt8(_), _) => false,
(UInt16(v1), UInt16(v2)) => v1.eq(v2),
(UInt16(_), _) => false,
(UInt32(v1), UInt32(v2)) => v1.eq(v2),
(UInt32(_), _) => false,
(UInt64(v1), UInt64(v2)) => v1.eq(v2),
(UInt64(_), _) => false,
(Utf8(v1), Utf8(v2)) => v1.eq(v2),
(Utf8(_), _) => false,
(LargeUtf8(v1), LargeUtf8(v2)) => v1.eq(v2),
(LargeUtf8(_), _) => false,
(Binary(v1), Binary(v2)) => v1.eq(v2),
(Binary(_), _) => false,
(LargeBinary(v1), LargeBinary(v2)) => v1.eq(v2),
(LargeBinary(_), _) => false,
(List(v1, t1), List(v2, t2)) => v1.eq(v2) && t1.eq(t2),
(List(_, _), _) => false,
(Date32(v1), Date32(v2)) => v1.eq(v2),
(Date32(_), _) => false,
(Date64(v1), Date64(v2)) => v1.eq(v2),
(Date64(_), _) => false,
(TimestampSecond(v1, _), TimestampSecond(v2, _)) => v1.eq(v2),
(TimestampSecond(_, _), _) => false,
(TimestampMillisecond(v1, _), TimestampMillisecond(v2, _)) => v1.eq(v2),
(TimestampMillisecond(_, _), _) => false,
(TimestampMicrosecond(v1, _), TimestampMicrosecond(v2, _)) => v1.eq(v2),
(TimestampMicrosecond(_, _), _) => false,
(TimestampNanosecond(v1, _), TimestampNanosecond(v2, _)) => v1.eq(v2),
(TimestampNanosecond(_, _), _) => false,
(IntervalYearMonth(v1), IntervalYearMonth(v2)) => v1.eq(v2),
(IntervalYearMonth(_), _) => false,
(IntervalDayTime(v1), IntervalDayTime(v2)) => v1.eq(v2),
(IntervalDayTime(_), _) => false,
(IntervalMonthDayNano(v1), IntervalMonthDayNano(v2)) => v1.eq(v2),
(IntervalMonthDayNano(_), _) => false,
(Struct(v1, t1), Struct(v2, t2)) => v1.eq(v2) && t1.eq(t2),
(Struct(_, _), _) => false,
(Null, Null) => true,
(Null, _) => false,
}
}
}
impl PartialOrd for ScalarValue {
fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
use ScalarValue::*;
match (self, other) {
(Decimal128(v1, p1, s1), Decimal128(v2, p2, s2)) => {
if p1.eq(p2) && s1.eq(s2) {
v1.partial_cmp(v2)
} else {
None
}
}
(Decimal128(_, _, _), _) => None,
(Boolean(v1), Boolean(v2)) => v1.partial_cmp(v2),
(Boolean(_), _) => None,
(Float32(v1), Float32(v2)) => {
let v1 = v1.map(OrderedFloat);
let v2 = v2.map(OrderedFloat);
v1.partial_cmp(&v2)
}
(Float32(_), _) => None,
(Float64(v1), Float64(v2)) => {
let v1 = v1.map(OrderedFloat);
let v2 = v2.map(OrderedFloat);
v1.partial_cmp(&v2)
}
(Float64(_), _) => None,
(Int8(v1), Int8(v2)) => v1.partial_cmp(v2),
(Int8(_), _) => None,
(Int16(v1), Int16(v2)) => v1.partial_cmp(v2),
(Int16(_), _) => None,
(Int32(v1), Int32(v2)) => v1.partial_cmp(v2),
(Int32(_), _) => None,
(Int64(v1), Int64(v2)) => v1.partial_cmp(v2),
(Int64(_), _) => None,
(UInt8(v1), UInt8(v2)) => v1.partial_cmp(v2),
(UInt8(_), _) => None,
(UInt16(v1), UInt16(v2)) => v1.partial_cmp(v2),
(UInt16(_), _) => None,
(UInt32(v1), UInt32(v2)) => v1.partial_cmp(v2),
(UInt32(_), _) => None,
(UInt64(v1), UInt64(v2)) => v1.partial_cmp(v2),
(UInt64(_), _) => None,
(Utf8(v1), Utf8(v2)) => v1.partial_cmp(v2),
(Utf8(_), _) => None,
(LargeUtf8(v1), LargeUtf8(v2)) => v1.partial_cmp(v2),
(LargeUtf8(_), _) => None,
(Binary(v1), Binary(v2)) => v1.partial_cmp(v2),
(Binary(_), _) => None,
(LargeBinary(v1), LargeBinary(v2)) => v1.partial_cmp(v2),
(LargeBinary(_), _) => None,
(List(v1, t1), List(v2, t2)) => {
if t1.eq(t2) {
v1.partial_cmp(v2)
} else {
None
}
}
(List(_, _), _) => None,
(Date32(v1), Date32(v2)) => v1.partial_cmp(v2),
(Date32(_), _) => None,
(Date64(v1), Date64(v2)) => v1.partial_cmp(v2),
(Date64(_), _) => None,
(TimestampSecond(v1, _), TimestampSecond(v2, _)) => v1.partial_cmp(v2),
(TimestampSecond(_, _), _) => None,
(TimestampMillisecond(v1, _), TimestampMillisecond(v2, _)) => {
v1.partial_cmp(v2)
}
(TimestampMillisecond(_, _), _) => None,
(TimestampMicrosecond(v1, _), TimestampMicrosecond(v2, _)) => {
v1.partial_cmp(v2)
}
(TimestampMicrosecond(_, _), _) => None,
(TimestampNanosecond(v1, _), TimestampNanosecond(v2, _)) => {
v1.partial_cmp(v2)
}
(TimestampNanosecond(_, _), _) => None,
(IntervalYearMonth(v1), IntervalYearMonth(v2)) => v1.partial_cmp(v2),
(IntervalYearMonth(_), _) => None,
(IntervalDayTime(v1), IntervalDayTime(v2)) => v1.partial_cmp(v2),
(IntervalDayTime(_), _) => None,
(IntervalMonthDayNano(v1), IntervalMonthDayNano(v2)) => v1.partial_cmp(v2),
(IntervalMonthDayNano(_), _) => None,
(Struct(v1, t1), Struct(v2, t2)) => {
if t1.eq(t2) {
v1.partial_cmp(v2)
} else {
None
}
}
(Struct(_, _), _) => None,
(Null, Null) => Some(Ordering::Equal),
(Null, _) => None,
}
}
}
impl Eq for ScalarValue {}
impl std::hash::Hash for ScalarValue {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
use ScalarValue::*;
match self {
Decimal128(v, p, s) => {
v.hash(state);
p.hash(state);
s.hash(state)
}
Boolean(v) => v.hash(state),
Float32(v) => {
let v = v.map(OrderedFloat);
v.hash(state)
}
Float64(v) => {
let v = v.map(OrderedFloat);
v.hash(state)
}
Int8(v) => v.hash(state),
Int16(v) => v.hash(state),
Int32(v) => v.hash(state),
Int64(v) => v.hash(state),
UInt8(v) => v.hash(state),
UInt16(v) => v.hash(state),
UInt32(v) => v.hash(state),
UInt64(v) => v.hash(state),
Utf8(v) => v.hash(state),
LargeUtf8(v) => v.hash(state),
Binary(v) => v.hash(state),
LargeBinary(v) => v.hash(state),
List(v, t) => {
v.hash(state);
t.hash(state);
}
Date32(v) => v.hash(state),
Date64(v) => v.hash(state),
TimestampSecond(v, _) => v.hash(state),
TimestampMillisecond(v, _) => v.hash(state),
TimestampMicrosecond(v, _) => v.hash(state),
TimestampNanosecond(v, _) => v.hash(state),
IntervalYearMonth(v) => v.hash(state),
IntervalDayTime(v) => v.hash(state),
IntervalMonthDayNano(v) => v.hash(state),
Struct(v, t) => {
v.hash(state);
t.hash(state);
}
Null => 1.hash(state),
}
}
}
#[inline]
fn get_dict_value<K: ArrowDictionaryKeyType>(
array: &ArrayRef,
index: usize,
) -> Result<(&ArrayRef, Option<usize>)> {
let dict_array = array.as_any().downcast_ref::<DictionaryArray<K>>().unwrap();
let keys_col = dict_array.keys();
if !keys_col.is_valid(index) {
return Ok((dict_array.values(), None));
}
let values_index = keys_col.value(index).to_usize().ok_or_else(|| {
DataFusionError::Internal(format!(
"Can not convert index to usize in dictionary of type creating group by value {:?}",
keys_col.data_type()
))
})?;
Ok((dict_array.values(), Some(values_index)))
}
macro_rules! typed_cast_tz {
($array:expr, $index:expr, $ARRAYTYPE:ident, $SCALAR:ident, $TZ:expr) => {{
let array = $array.as_any().downcast_ref::<$ARRAYTYPE>().unwrap();
ScalarValue::$SCALAR(
match array.is_null($index) {
true => None,
false => Some(array.value($index).into()),
},
$TZ.clone(),
)
}};
}
macro_rules! typed_cast {
($array:expr, $index:expr, $ARRAYTYPE:ident, $SCALAR:ident) => {{
let array = $array.as_any().downcast_ref::<$ARRAYTYPE>().unwrap();
ScalarValue::$SCALAR(match array.is_null($index) {
true => None,
false => Some(array.value($index).into()),
})
}};
}
macro_rules! build_list {
($VALUE_BUILDER_TY:ident, $SCALAR_TY:ident, $VALUES:expr, $SIZE:expr) => {{
match $VALUES {
None => {
return new_null_array(
&DataType::List(Box::new(Field::new(
"item",
DataType::$SCALAR_TY,
true,
))),
$SIZE,
)
}
Some(values) => {
build_values_list!($VALUE_BUILDER_TY, $SCALAR_TY, values, $SIZE)
}
}
}};
}
macro_rules! build_timestamp_list {
($TIME_UNIT:expr, $TIME_ZONE:expr, $VALUES:expr, $SIZE:expr) => {{
match $VALUES {
None => {
return new_null_array(
&DataType::List(Box::new(Field::new(
"item",
DataType::Timestamp($TIME_UNIT, $TIME_ZONE),
true,
))),
$SIZE,
)
}
Some(values) => match $TIME_UNIT {
TimeUnit::Second => {
build_values_list_tz!(
TimestampSecondBuilder,
TimestampSecond,
values,
$SIZE
)
}
TimeUnit::Microsecond => build_values_list_tz!(
TimestampMillisecondBuilder,
TimestampMillisecond,
values,
$SIZE
),
TimeUnit::Millisecond => build_values_list_tz!(
TimestampMicrosecondBuilder,
TimestampMicrosecond,
values,
$SIZE
),
TimeUnit::Nanosecond => build_values_list_tz!(
TimestampNanosecondBuilder,
TimestampNanosecond,
values,
$SIZE
),
},
}
}};
}
macro_rules! build_values_list {
($VALUE_BUILDER_TY:ident, $SCALAR_TY:ident, $VALUES:expr, $SIZE:expr) => {{
let mut builder = ListBuilder::new($VALUE_BUILDER_TY::new($VALUES.len()));
for _ in 0..$SIZE {
for scalar_value in $VALUES {
match scalar_value {
ScalarValue::$SCALAR_TY(Some(v)) => {
builder.values().append_value(v.clone()).unwrap()
}
ScalarValue::$SCALAR_TY(None) => {
builder.values().append_null().unwrap();
}
_ => panic!("Incompatible ScalarValue for list"),
};
}
builder.append(true).unwrap();
}
builder.finish()
}};
}
macro_rules! build_values_list_tz {
($VALUE_BUILDER_TY:ident, $SCALAR_TY:ident, $VALUES:expr, $SIZE:expr) => {{
let mut builder = ListBuilder::new($VALUE_BUILDER_TY::new($VALUES.len()));
for _ in 0..$SIZE {
for scalar_value in $VALUES {
match scalar_value {
ScalarValue::$SCALAR_TY(Some(v), _) => {
builder.values().append_value(v.clone()).unwrap()
}
ScalarValue::$SCALAR_TY(None, _) => {
builder.values().append_null().unwrap();
}
_ => panic!("Incompatible ScalarValue for list"),
};
}
builder.append(true).unwrap();
}
builder.finish()
}};
}
macro_rules! build_array_from_option {
($DATA_TYPE:ident, $ARRAY_TYPE:ident, $EXPR:expr, $SIZE:expr) => {{
match $EXPR {
Some(value) => Arc::new($ARRAY_TYPE::from_value(*value, $SIZE)),
None => new_null_array(&DataType::$DATA_TYPE, $SIZE),
}
}};
($DATA_TYPE:ident, $ENUM:expr, $ARRAY_TYPE:ident, $EXPR:expr, $SIZE:expr) => {{
match $EXPR {
Some(value) => Arc::new($ARRAY_TYPE::from_value(*value, $SIZE)),
None => new_null_array(&DataType::$DATA_TYPE($ENUM), $SIZE),
}
}};
($DATA_TYPE:ident, $ENUM:expr, $ENUM2:expr, $ARRAY_TYPE:ident, $EXPR:expr, $SIZE:expr) => {{
match $EXPR {
Some(value) => {
let array: ArrayRef = Arc::new($ARRAY_TYPE::from_value(*value, $SIZE));
cast(&array, &DataType::$DATA_TYPE($ENUM, $ENUM2))
.expect("cannot do temporal cast")
}
None => new_null_array(&DataType::$DATA_TYPE($ENUM, $ENUM2), $SIZE),
}
}};
}
macro_rules! eq_array_primitive {
($array:expr, $index:expr, $ARRAYTYPE:ident, $VALUE:expr) => {{
let array = $array.as_any().downcast_ref::<$ARRAYTYPE>().unwrap();
let is_valid = array.is_valid($index);
match $VALUE {
Some(val) => is_valid && &array.value($index) == val,
None => !is_valid,
}
}};
}
impl ScalarValue {
pub fn try_new_decimal128(
value: i128,
precision: usize,
scale: usize,
) -> Result<Self> {
if precision <= DECIMAL_MAX_PRECISION && scale <= precision {
return Ok(ScalarValue::Decimal128(Some(value), precision, scale));
}
Err(DataFusionError::Internal(format!(
"Can not new a decimal type ScalarValue for precision {} and scale {}",
precision, scale
)))
}
pub fn get_datatype(&self) -> DataType {
match self {
ScalarValue::Boolean(_) => DataType::Boolean,
ScalarValue::UInt8(_) => DataType::UInt8,
ScalarValue::UInt16(_) => DataType::UInt16,
ScalarValue::UInt32(_) => DataType::UInt32,
ScalarValue::UInt64(_) => DataType::UInt64,
ScalarValue::Int8(_) => DataType::Int8,
ScalarValue::Int16(_) => DataType::Int16,
ScalarValue::Int32(_) => DataType::Int32,
ScalarValue::Int64(_) => DataType::Int64,
ScalarValue::Decimal128(_, precision, scale) => {
DataType::Decimal(*precision, *scale)
}
ScalarValue::TimestampSecond(_, tz_opt) => {
DataType::Timestamp(TimeUnit::Second, tz_opt.clone())
}
ScalarValue::TimestampMillisecond(_, tz_opt) => {
DataType::Timestamp(TimeUnit::Millisecond, tz_opt.clone())
}
ScalarValue::TimestampMicrosecond(_, tz_opt) => {
DataType::Timestamp(TimeUnit::Microsecond, tz_opt.clone())
}
ScalarValue::TimestampNanosecond(_, tz_opt) => {
DataType::Timestamp(TimeUnit::Nanosecond, tz_opt.clone())
}
ScalarValue::Float32(_) => DataType::Float32,
ScalarValue::Float64(_) => DataType::Float64,
ScalarValue::Utf8(_) => DataType::Utf8,
ScalarValue::LargeUtf8(_) => DataType::LargeUtf8,
ScalarValue::Binary(_) => DataType::Binary,
ScalarValue::LargeBinary(_) => DataType::LargeBinary,
ScalarValue::List(_, data_type) => DataType::List(Box::new(Field::new(
"item",
data_type.as_ref().clone(),
true,
))),
ScalarValue::Date32(_) => DataType::Date32,
ScalarValue::Date64(_) => DataType::Date64,
ScalarValue::IntervalYearMonth(_) => {
DataType::Interval(IntervalUnit::YearMonth)
}
ScalarValue::IntervalDayTime(_) => DataType::Interval(IntervalUnit::DayTime),
ScalarValue::IntervalMonthDayNano(_) => {
DataType::Interval(IntervalUnit::MonthDayNano)
}
ScalarValue::Struct(_, fields) => DataType::Struct(fields.as_ref().clone()),
ScalarValue::Null => DataType::Null,
}
}
pub fn arithmetic_negate(&self) -> Self {
match self {
ScalarValue::Boolean(None)
| ScalarValue::Int8(None)
| ScalarValue::Int16(None)
| ScalarValue::Int32(None)
| ScalarValue::Int64(None)
| ScalarValue::Float32(None) => self.clone(),
ScalarValue::Float64(Some(v)) => ScalarValue::Float64(Some(-v)),
ScalarValue::Float32(Some(v)) => ScalarValue::Float32(Some(-v)),
ScalarValue::Int8(Some(v)) => ScalarValue::Int8(Some(-v)),
ScalarValue::Int16(Some(v)) => ScalarValue::Int16(Some(-v)),
ScalarValue::Int32(Some(v)) => ScalarValue::Int32(Some(-v)),
ScalarValue::Int64(Some(v)) => ScalarValue::Int64(Some(-v)),
ScalarValue::Decimal128(Some(v), precision, scale) => {
ScalarValue::Decimal128(Some(-v), *precision, *scale)
}
_ => panic!("Cannot run arithmetic negate on scalar value: {:?}", self),
}
}
pub fn is_null(&self) -> bool {
match self {
ScalarValue::Boolean(v) => v.is_none(),
ScalarValue::Null => true,
ScalarValue::Float32(v) => v.is_none(),
ScalarValue::Float64(v) => v.is_none(),
ScalarValue::Decimal128(v, _, _) => v.is_none(),
ScalarValue::Int8(v) => v.is_none(),
ScalarValue::Int16(v) => v.is_none(),
ScalarValue::Int32(v) => v.is_none(),
ScalarValue::Int64(v) => v.is_none(),
ScalarValue::UInt8(v) => v.is_none(),
ScalarValue::UInt16(v) => v.is_none(),
ScalarValue::UInt32(v) => v.is_none(),
ScalarValue::UInt64(v) => v.is_none(),
ScalarValue::Utf8(v) => v.is_none(),
ScalarValue::LargeUtf8(v) => v.is_none(),
ScalarValue::Binary(v) => v.is_none(),
ScalarValue::LargeBinary(v) => v.is_none(),
ScalarValue::List(v, _) => v.is_none(),
ScalarValue::Date32(v) => v.is_none(),
ScalarValue::Date64(v) => v.is_none(),
ScalarValue::TimestampSecond(v, _) => v.is_none(),
ScalarValue::TimestampMillisecond(v, _) => v.is_none(),
ScalarValue::TimestampMicrosecond(v, _) => v.is_none(),
ScalarValue::TimestampNanosecond(v, _) => v.is_none(),
ScalarValue::IntervalYearMonth(v) => v.is_none(),
ScalarValue::IntervalDayTime(v) => v.is_none(),
ScalarValue::IntervalMonthDayNano(v) => v.is_none(),
ScalarValue::Struct(v, _) => v.is_none(),
}
}
pub fn to_array(&self) -> ArrayRef {
self.to_array_of_size(1)
}
pub fn iter_to_array(
scalars: impl IntoIterator<Item = ScalarValue>,
) -> Result<ArrayRef> {
let mut scalars = scalars.into_iter().peekable();
let data_type = match scalars.peek() {
None => {
return Err(DataFusionError::Internal(
"Empty iterator passed to ScalarValue::iter_to_array".to_string(),
));
}
Some(sv) => sv.get_datatype(),
};
macro_rules! build_array_primitive {
($ARRAY_TY:ident, $SCALAR_TY:ident) => {{
{
let array = scalars.map(|sv| {
if let ScalarValue::$SCALAR_TY(v) = sv {
Ok(v)
} else {
Err(DataFusionError::Internal(format!(
"Inconsistent types in ScalarValue::iter_to_array. \
Expected {:?}, got {:?}",
data_type, sv
)))
}
})
.collect::<Result<$ARRAY_TY>>()?;
Arc::new(array)
}
}};
}
macro_rules! build_array_primitive_tz {
($ARRAY_TY:ident, $SCALAR_TY:ident) => {{
{
let array = scalars.map(|sv| {
if let ScalarValue::$SCALAR_TY(v, _) = sv {
Ok(v)
} else {
Err(DataFusionError::Internal(format!(
"Inconsistent types in ScalarValue::iter_to_array. \
Expected {:?}, got {:?}",
data_type, sv
)))
}
})
.collect::<Result<$ARRAY_TY>>()?;
Arc::new(array)
}
}};
}
macro_rules! build_array_string {
($ARRAY_TY:ident, $SCALAR_TY:ident) => {{
{
let array = scalars.map(|sv| {
if let ScalarValue::$SCALAR_TY(v) = sv {
Ok(v)
} else {
Err(DataFusionError::Internal(format!(
"Inconsistent types in ScalarValue::iter_to_array. \
Expected {:?}, got {:?}",
data_type, sv
)))
}
})
.collect::<Result<$ARRAY_TY>>()?;
Arc::new(array)
}
}};
}
macro_rules! build_array_list_primitive {
($ARRAY_TY:ident, $SCALAR_TY:ident, $NATIVE_TYPE:ident) => {{
Arc::new(ListArray::from_iter_primitive::<$ARRAY_TY, _, _>(
scalars.into_iter().map(|x| match x {
ScalarValue::List(xs, _) => xs.map(|x| {
x.iter().map(|x| match x {
ScalarValue::$SCALAR_TY(i) => *i,
sv => panic!(
"Inconsistent types in ScalarValue::iter_to_array. \
Expected {:?}, got {:?}",
data_type, sv
),
})
.collect::<Vec<Option<$NATIVE_TYPE>>>()
}),
sv => panic!(
"Inconsistent types in ScalarValue::iter_to_array. \
Expected {:?}, got {:?}",
data_type, sv
),
}),
))
}};
}
macro_rules! build_array_list_string {
($BUILDER:ident, $SCALAR_TY:ident) => {{
let mut builder = ListBuilder::new($BUILDER::new(0));
for scalar in scalars.into_iter() {
match scalar {
ScalarValue::List(Some(xs), _) => {
for s in xs {
match s {
ScalarValue::$SCALAR_TY(Some(val)) => {
builder.values().append_value(val)?;
}
ScalarValue::$SCALAR_TY(None) => {
builder.values().append_null()?;
}
sv => {
return Err(DataFusionError::Internal(format!(
"Inconsistent types in ScalarValue::iter_to_array. \
Expected Utf8, got {:?}",
sv
)))
}
}
}
builder.append(true)?;
}
ScalarValue::List(None, _) => {
builder.append(false)?;
}
sv => {
return Err(DataFusionError::Internal(format!(
"Inconsistent types in ScalarValue::iter_to_array. \
Expected List, got {:?}",
sv
)))
}
}
}
Arc::new(builder.finish())
}};
}
let array: ArrayRef = match &data_type {
DataType::Decimal(precision, scale) => {
let decimal_array =
ScalarValue::iter_to_decimal_array(scalars, precision, scale)?;
Arc::new(decimal_array)
}
DataType::Null => ScalarValue::iter_to_null_array(scalars),
DataType::Boolean => build_array_primitive!(BooleanArray, Boolean),
DataType::Float32 => build_array_primitive!(Float32Array, Float32),
DataType::Float64 => build_array_primitive!(Float64Array, Float64),
DataType::Int8 => build_array_primitive!(Int8Array, Int8),
DataType::Int16 => build_array_primitive!(Int16Array, Int16),
DataType::Int32 => build_array_primitive!(Int32Array, Int32),
DataType::Int64 => build_array_primitive!(Int64Array, Int64),
DataType::UInt8 => build_array_primitive!(UInt8Array, UInt8),
DataType::UInt16 => build_array_primitive!(UInt16Array, UInt16),
DataType::UInt32 => build_array_primitive!(UInt32Array, UInt32),
DataType::UInt64 => build_array_primitive!(UInt64Array, UInt64),
DataType::Utf8 => build_array_string!(StringArray, Utf8),
DataType::LargeUtf8 => build_array_string!(LargeStringArray, LargeUtf8),
DataType::Binary => build_array_string!(BinaryArray, Binary),
DataType::LargeBinary => build_array_string!(LargeBinaryArray, LargeBinary),
DataType::Date32 => build_array_primitive!(Date32Array, Date32),
DataType::Date64 => build_array_primitive!(Date64Array, Date64),
DataType::Timestamp(TimeUnit::Second, _) => {
build_array_primitive_tz!(TimestampSecondArray, TimestampSecond)
}
DataType::Timestamp(TimeUnit::Millisecond, _) => {
build_array_primitive_tz!(TimestampMillisecondArray, TimestampMillisecond)
}
DataType::Timestamp(TimeUnit::Microsecond, _) => {
build_array_primitive_tz!(TimestampMicrosecondArray, TimestampMicrosecond)
}
DataType::Timestamp(TimeUnit::Nanosecond, _) => {
build_array_primitive_tz!(TimestampNanosecondArray, TimestampNanosecond)
}
DataType::Interval(IntervalUnit::DayTime) => {
build_array_primitive!(IntervalDayTimeArray, IntervalDayTime)
}
DataType::Interval(IntervalUnit::YearMonth) => {
build_array_primitive!(IntervalYearMonthArray, IntervalYearMonth)
}
DataType::List(fields) if fields.data_type() == &DataType::Int8 => {
build_array_list_primitive!(Int8Type, Int8, i8)
}
DataType::List(fields) if fields.data_type() == &DataType::Int16 => {
build_array_list_primitive!(Int16Type, Int16, i16)
}
DataType::List(fields) if fields.data_type() == &DataType::Int32 => {
build_array_list_primitive!(Int32Type, Int32, i32)
}
DataType::List(fields) if fields.data_type() == &DataType::Int64 => {
build_array_list_primitive!(Int64Type, Int64, i64)
}
DataType::List(fields) if fields.data_type() == &DataType::UInt8 => {
build_array_list_primitive!(UInt8Type, UInt8, u8)
}
DataType::List(fields) if fields.data_type() == &DataType::UInt16 => {
build_array_list_primitive!(UInt16Type, UInt16, u16)
}
DataType::List(fields) if fields.data_type() == &DataType::UInt32 => {
build_array_list_primitive!(UInt32Type, UInt32, u32)
}
DataType::List(fields) if fields.data_type() == &DataType::UInt64 => {
build_array_list_primitive!(UInt64Type, UInt64, u64)
}
DataType::List(fields) if fields.data_type() == &DataType::Float32 => {
build_array_list_primitive!(Float32Type, Float32, f32)
}
DataType::List(fields) if fields.data_type() == &DataType::Float64 => {
build_array_list_primitive!(Float64Type, Float64, f64)
}
DataType::List(fields) if fields.data_type() == &DataType::Utf8 => {
build_array_list_string!(StringBuilder, Utf8)
}
DataType::List(fields) if fields.data_type() == &DataType::LargeUtf8 => {
build_array_list_string!(LargeStringBuilder, LargeUtf8)
}
DataType::List(_) => {
let list_array = ScalarValue::iter_to_array_list(scalars, &data_type)?;
Arc::new(list_array)
}
DataType::Struct(fields) => {
let mut columns: Vec<Vec<ScalarValue>> =
(0..fields.len()).map(|_| Vec::new()).collect();
for scalar in scalars {
if let ScalarValue::Struct(values, fields) = scalar {
match values {
Some(values) => {
for (column, value) in columns.iter_mut().zip(values) {
column.push(value.clone());
}
}
None => {
for (column, field) in
columns.iter_mut().zip(fields.as_ref())
{
column
.push(ScalarValue::try_from(field.data_type())?);
}
}
};
} else {
return Err(DataFusionError::Internal(format!(
"Expected Struct but found: {}",
scalar
)));
};
}
let field_values = fields
.iter()
.zip(columns)
.map(|(field, column)| -> Result<(Field, ArrayRef)> {
Ok((field.clone(), Self::iter_to_array(column)?))
})
.collect::<Result<Vec<_>>>()?;
Arc::new(StructArray::from(field_values))
}
_ => {
return Err(DataFusionError::Internal(format!(
"Unsupported creation of {:?} array from ScalarValue {:?}",
data_type,
scalars.peek()
)));
}
};
Ok(array)
}
fn iter_to_null_array(scalars: impl IntoIterator<Item = ScalarValue>) -> ArrayRef {
let length =
scalars
.into_iter()
.fold(0usize, |r, element: ScalarValue| match element {
ScalarValue::Null => r + 1,
_ => unreachable!(),
});
new_null_array(&DataType::Null, length)
}
fn iter_to_decimal_array(
scalars: impl IntoIterator<Item = ScalarValue>,
precision: &usize,
scale: &usize,
) -> Result<DecimalArray> {
let array = scalars
.into_iter()
.map(|element: ScalarValue| match element {
ScalarValue::Decimal128(v1, _, _) => v1,
_ => unreachable!(),
})
.collect::<DecimalArray>()
.with_precision_and_scale(*precision, *scale)?;
Ok(array)
}
fn iter_to_array_list(
scalars: impl IntoIterator<Item = ScalarValue>,
data_type: &DataType,
) -> Result<GenericListArray<i32>> {
let mut offsets = Int32Array::builder(0);
if let Err(err) = offsets.append_value(0) {
return Err(DataFusionError::ArrowError(err));
}
let mut elements: Vec<ArrayRef> = Vec::new();
let mut valid = BooleanBufferBuilder::new(0);
let mut flat_len = 0i32;
for scalar in scalars {
if let ScalarValue::List(values, _) = scalar {
match values {
Some(values) => {
let element_array = ScalarValue::iter_to_array(values)?;
flat_len += element_array.len() as i32;
if let Err(err) = offsets.append_value(flat_len) {
return Err(DataFusionError::ArrowError(err));
}
elements.push(element_array);
valid.append(true);
}
None => {
if let Err(err) = offsets.append_value(flat_len) {
return Err(DataFusionError::ArrowError(err));
}
valid.append(false);
}
}
} else {
return Err(DataFusionError::Internal(format!(
"Expected ScalarValue::List element. Received {:?}",
scalar
)));
}
}
let element_arrays: Vec<&dyn Array> =
elements.iter().map(|a| a.as_ref()).collect();
let flat_array = match arrow::compute::concat(&element_arrays) {
Ok(flat_array) => flat_array,
Err(err) => return Err(DataFusionError::ArrowError(err)),
};
let offsets_array = offsets.finish();
let array_data = ArrayDataBuilder::new(data_type.clone())
.len(offsets_array.len() - 1)
.null_bit_buffer(Some(valid.finish()))
.add_buffer(offsets_array.data().buffers()[0].clone())
.add_child_data(flat_array.data().clone());
let list_array = ListArray::from(array_data.build()?);
Ok(list_array)
}
fn build_decimal_array(
value: &Option<i128>,
precision: &usize,
scale: &usize,
size: usize,
) -> DecimalArray {
std::iter::repeat(value)
.take(size)
.collect::<DecimalArray>()
.with_precision_and_scale(*precision, *scale)
.unwrap()
}
pub fn to_array_of_size(&self, size: usize) -> ArrayRef {
match self {
ScalarValue::Decimal128(e, precision, scale) => {
Arc::new(ScalarValue::build_decimal_array(e, precision, scale, size))
}
ScalarValue::Boolean(e) => {
Arc::new(BooleanArray::from(vec![*e; size])) as ArrayRef
}
ScalarValue::Float64(e) => {
build_array_from_option!(Float64, Float64Array, e, size)
}
ScalarValue::Float32(e) => {
build_array_from_option!(Float32, Float32Array, e, size)
}
ScalarValue::Int8(e) => build_array_from_option!(Int8, Int8Array, e, size),
ScalarValue::Int16(e) => build_array_from_option!(Int16, Int16Array, e, size),
ScalarValue::Int32(e) => build_array_from_option!(Int32, Int32Array, e, size),
ScalarValue::Int64(e) => build_array_from_option!(Int64, Int64Array, e, size),
ScalarValue::UInt8(e) => build_array_from_option!(UInt8, UInt8Array, e, size),
ScalarValue::UInt16(e) => {
build_array_from_option!(UInt16, UInt16Array, e, size)
}
ScalarValue::UInt32(e) => {
build_array_from_option!(UInt32, UInt32Array, e, size)
}
ScalarValue::UInt64(e) => {
build_array_from_option!(UInt64, UInt64Array, e, size)
}
ScalarValue::TimestampSecond(e, tz_opt) => build_array_from_option!(
Timestamp,
TimeUnit::Second,
tz_opt.clone(),
TimestampSecondArray,
e,
size
),
ScalarValue::TimestampMillisecond(e, tz_opt) => build_array_from_option!(
Timestamp,
TimeUnit::Millisecond,
tz_opt.clone(),
TimestampMillisecondArray,
e,
size
),
ScalarValue::TimestampMicrosecond(e, tz_opt) => build_array_from_option!(
Timestamp,
TimeUnit::Microsecond,
tz_opt.clone(),
TimestampMicrosecondArray,
e,
size
),
ScalarValue::TimestampNanosecond(e, tz_opt) => build_array_from_option!(
Timestamp,
TimeUnit::Nanosecond,
tz_opt.clone(),
TimestampNanosecondArray,
e,
size
),
ScalarValue::Utf8(e) => match e {
Some(value) => {
Arc::new(StringArray::from_iter_values(repeat(value).take(size)))
}
None => new_null_array(&DataType::Utf8, size),
},
ScalarValue::LargeUtf8(e) => match e {
Some(value) => {
Arc::new(LargeStringArray::from_iter_values(repeat(value).take(size)))
}
None => new_null_array(&DataType::LargeUtf8, size),
},
ScalarValue::Binary(e) => match e {
Some(value) => Arc::new(
repeat(Some(value.as_slice()))
.take(size)
.collect::<BinaryArray>(),
),
None => {
Arc::new(repeat(None::<&str>).take(size).collect::<BinaryArray>())
}
},
ScalarValue::LargeBinary(e) => match e {
Some(value) => Arc::new(
repeat(Some(value.as_slice()))
.take(size)
.collect::<LargeBinaryArray>(),
),
None => Arc::new(
repeat(None::<&str>)
.take(size)
.collect::<LargeBinaryArray>(),
),
},
ScalarValue::List(values, data_type) => Arc::new(match data_type.as_ref() {
DataType::Boolean => build_list!(BooleanBuilder, Boolean, values, size),
DataType::Int8 => build_list!(Int8Builder, Int8, values, size),
DataType::Int16 => build_list!(Int16Builder, Int16, values, size),
DataType::Int32 => build_list!(Int32Builder, Int32, values, size),
DataType::Int64 => build_list!(Int64Builder, Int64, values, size),
DataType::UInt8 => build_list!(UInt8Builder, UInt8, values, size),
DataType::UInt16 => build_list!(UInt16Builder, UInt16, values, size),
DataType::UInt32 => build_list!(UInt32Builder, UInt32, values, size),
DataType::UInt64 => build_list!(UInt64Builder, UInt64, values, size),
DataType::Utf8 => build_list!(StringBuilder, Utf8, values, size),
DataType::Float32 => build_list!(Float32Builder, Float32, values, size),
DataType::Float64 => build_list!(Float64Builder, Float64, values, size),
DataType::Timestamp(unit, tz) => {
build_timestamp_list!(unit.clone(), tz.clone(), values, size)
}
&DataType::LargeUtf8 => {
build_list!(LargeStringBuilder, LargeUtf8, values, size)
}
_ => ScalarValue::iter_to_array_list(
repeat(self.clone()).take(size),
&DataType::List(Box::new(Field::new(
"item",
data_type.as_ref().clone(),
true,
))),
)
.unwrap(),
}),
ScalarValue::Date32(e) => {
build_array_from_option!(Date32, Date32Array, e, size)
}
ScalarValue::Date64(e) => {
build_array_from_option!(Date64, Date64Array, e, size)
}
ScalarValue::IntervalDayTime(e) => build_array_from_option!(
Interval,
IntervalUnit::DayTime,
IntervalDayTimeArray,
e,
size
),
ScalarValue::IntervalYearMonth(e) => build_array_from_option!(
Interval,
IntervalUnit::YearMonth,
IntervalYearMonthArray,
e,
size
),
ScalarValue::IntervalMonthDayNano(e) => build_array_from_option!(
Interval,
IntervalUnit::MonthDayNano,
IntervalMonthDayNanoArray,
e,
size
),
ScalarValue::Struct(values, fields) => match values {
Some(values) => {
let field_values: Vec<_> = fields
.iter()
.zip(values.iter())
.map(|(field, value)| {
(field.clone(), value.to_array_of_size(size))
})
.collect();
Arc::new(StructArray::from(field_values))
}
None => {
let field_values: Vec<_> = fields
.iter()
.map(|field| {
let none_field = Self::try_from(field.data_type())
.expect("Failed to construct null ScalarValue from Struct field type");
(field.clone(), none_field.to_array_of_size(size))
})
.collect();
Arc::new(StructArray::from(field_values))
}
},
ScalarValue::Null => new_null_array(&DataType::Null, size),
}
}
fn get_decimal_value_from_array(
array: &ArrayRef,
index: usize,
precision: &usize,
scale: &usize,
) -> ScalarValue {
let array = array.as_any().downcast_ref::<DecimalArray>().unwrap();
if array.is_null(index) {
ScalarValue::Decimal128(None, *precision, *scale)
} else {
ScalarValue::Decimal128(
Some(array.value(index).as_i128()),
*precision,
*scale,
)
}
}
pub fn try_from_array(array: &ArrayRef, index: usize) -> Result<Self> {
if !array.is_valid(index) {
return array.data_type().try_into();
}
Ok(match array.data_type() {
DataType::Null => ScalarValue::Null,
DataType::Decimal(precision, scale) => {
ScalarValue::get_decimal_value_from_array(array, index, precision, scale)
}
DataType::Boolean => typed_cast!(array, index, BooleanArray, Boolean),
DataType::Float64 => typed_cast!(array, index, Float64Array, Float64),
DataType::Float32 => typed_cast!(array, index, Float32Array, Float32),
DataType::UInt64 => typed_cast!(array, index, UInt64Array, UInt64),
DataType::UInt32 => typed_cast!(array, index, UInt32Array, UInt32),
DataType::UInt16 => typed_cast!(array, index, UInt16Array, UInt16),
DataType::UInt8 => typed_cast!(array, index, UInt8Array, UInt8),
DataType::Int64 => typed_cast!(array, index, Int64Array, Int64),
DataType::Int32 => typed_cast!(array, index, Int32Array, Int32),
DataType::Int16 => typed_cast!(array, index, Int16Array, Int16),
DataType::Int8 => typed_cast!(array, index, Int8Array, Int8),
DataType::Binary => typed_cast!(array, index, BinaryArray, Binary),
DataType::LargeBinary => {
typed_cast!(array, index, LargeBinaryArray, LargeBinary)
}
DataType::Utf8 => typed_cast!(array, index, StringArray, Utf8),
DataType::LargeUtf8 => typed_cast!(array, index, LargeStringArray, LargeUtf8),
DataType::List(nested_type) => {
let list_array =
array.as_any().downcast_ref::<ListArray>().ok_or_else(|| {
DataFusionError::Internal(
"Failed to downcast ListArray".to_string(),
)
})?;
let value = match list_array.is_null(index) {
true => None,
false => {
let nested_array = list_array.value(index);
let scalar_vec = (0..nested_array.len())
.map(|i| ScalarValue::try_from_array(&nested_array, i))
.collect::<Result<Vec<_>>>()?;
Some(scalar_vec)
}
};
let data_type = nested_type.data_type().clone();
ScalarValue::List(value, Box::new(data_type))
}
DataType::Date32 => {
typed_cast!(array, index, Date32Array, Date32)
}
DataType::Date64 => {
typed_cast!(array, index, Date64Array, Date64)
}
DataType::Timestamp(TimeUnit::Second, tz_opt) => {
typed_cast_tz!(
array,
index,
TimestampSecondArray,
TimestampSecond,
tz_opt
)
}
DataType::Timestamp(TimeUnit::Millisecond, tz_opt) => {
typed_cast_tz!(
array,
index,
TimestampMillisecondArray,
TimestampMillisecond,
tz_opt
)
}
DataType::Timestamp(TimeUnit::Microsecond, tz_opt) => {
typed_cast_tz!(
array,
index,
TimestampMicrosecondArray,
TimestampMicrosecond,
tz_opt
)
}
DataType::Timestamp(TimeUnit::Nanosecond, tz_opt) => {
typed_cast_tz!(
array,
index,
TimestampNanosecondArray,
TimestampNanosecond,
tz_opt
)
}
DataType::Dictionary(index_type, _) => {
let (values, values_index) = match **index_type {
DataType::Int8 => get_dict_value::<Int8Type>(array, index)?,
DataType::Int16 => get_dict_value::<Int16Type>(array, index)?,
DataType::Int32 => get_dict_value::<Int32Type>(array, index)?,
DataType::Int64 => get_dict_value::<Int64Type>(array, index)?,
DataType::UInt8 => get_dict_value::<UInt8Type>(array, index)?,
DataType::UInt16 => get_dict_value::<UInt16Type>(array, index)?,
DataType::UInt32 => get_dict_value::<UInt32Type>(array, index)?,
DataType::UInt64 => get_dict_value::<UInt64Type>(array, index)?,
_ => {
return Err(DataFusionError::Internal(format!(
"Index type not supported while creating scalar from dictionary: {}",
array.data_type(),
)));
}
};
match values_index {
Some(values_index) => Self::try_from_array(values, values_index)?,
None => values.data_type().try_into()?,
}
}
DataType::Struct(fields) => {
let array =
array
.as_any()
.downcast_ref::<StructArray>()
.ok_or_else(|| {
DataFusionError::Internal(
"Failed to downcast ArrayRef to StructArray".to_string(),
)
})?;
let mut field_values: Vec<ScalarValue> = Vec::new();
for col_index in 0..array.num_columns() {
let col_array = array.column(col_index);
let col_scalar = ScalarValue::try_from_array(col_array, index)?;
field_values.push(col_scalar);
}
Self::Struct(Some(field_values), Box::new(fields.clone()))
}
DataType::FixedSizeList(nested_type, _len) => {
let list_array =
array.as_any().downcast_ref::<FixedSizeListArray>().unwrap();
let value = match list_array.is_null(index) {
true => None,
false => {
let nested_array = list_array.value(index);
let scalar_vec = (0..nested_array.len())
.map(|i| ScalarValue::try_from_array(&nested_array, i))
.collect::<Result<Vec<_>>>()?;
Some(scalar_vec)
}
};
let data_type = nested_type.data_type().clone();
ScalarValue::List(value, Box::new(data_type))
}
other => {
return Err(DataFusionError::NotImplemented(format!(
"Can't create a scalar from array of type \"{:?}\"",
other
)));
}
})
}
pub fn try_from_string(value: String, target_type: &DataType) -> Result<Self> {
let value = ScalarValue::Utf8(Some(value));
let cast_options = CastOptions { safe: false };
let cast_arr = cast_with_options(&value.to_array(), target_type, &cast_options)?;
ScalarValue::try_from_array(&cast_arr, 0)
}
fn eq_array_decimal(
array: &ArrayRef,
index: usize,
value: &Option<i128>,
precision: usize,
scale: usize,
) -> bool {
let array = array.as_any().downcast_ref::<DecimalArray>().unwrap();
if array.precision() != precision || array.scale() != scale {
return false;
}
match value {
None => array.is_null(index),
Some(v) => {
!array.is_null(index)
&& array.value(index)
== Decimal128::new(precision, scale, &v.to_le_bytes())
}
}
}
#[inline]
pub fn eq_array(&self, array: &ArrayRef, index: usize) -> bool {
if let DataType::Dictionary(key_type, _) = array.data_type() {
return self.eq_array_dictionary(array, index, key_type);
}
match self {
ScalarValue::Decimal128(v, precision, scale) => {
ScalarValue::eq_array_decimal(array, index, v, *precision, *scale)
}
ScalarValue::Boolean(val) => {
eq_array_primitive!(array, index, BooleanArray, val)
}
ScalarValue::Float32(val) => {
eq_array_primitive!(array, index, Float32Array, val)
}
ScalarValue::Float64(val) => {
eq_array_primitive!(array, index, Float64Array, val)
}
ScalarValue::Int8(val) => eq_array_primitive!(array, index, Int8Array, val),
ScalarValue::Int16(val) => eq_array_primitive!(array, index, Int16Array, val),
ScalarValue::Int32(val) => eq_array_primitive!(array, index, Int32Array, val),
ScalarValue::Int64(val) => eq_array_primitive!(array, index, Int64Array, val),
ScalarValue::UInt8(val) => eq_array_primitive!(array, index, UInt8Array, val),
ScalarValue::UInt16(val) => {
eq_array_primitive!(array, index, UInt16Array, val)
}
ScalarValue::UInt32(val) => {
eq_array_primitive!(array, index, UInt32Array, val)
}
ScalarValue::UInt64(val) => {
eq_array_primitive!(array, index, UInt64Array, val)
}
ScalarValue::Utf8(val) => eq_array_primitive!(array, index, StringArray, val),
ScalarValue::LargeUtf8(val) => {
eq_array_primitive!(array, index, LargeStringArray, val)
}
ScalarValue::Binary(val) => {
eq_array_primitive!(array, index, BinaryArray, val)
}
ScalarValue::LargeBinary(val) => {
eq_array_primitive!(array, index, LargeBinaryArray, val)
}
ScalarValue::List(_, _) => unimplemented!(),
ScalarValue::Date32(val) => {
eq_array_primitive!(array, index, Date32Array, val)
}
ScalarValue::Date64(val) => {
eq_array_primitive!(array, index, Date64Array, val)
}
ScalarValue::TimestampSecond(val, _) => {
eq_array_primitive!(array, index, TimestampSecondArray, val)
}
ScalarValue::TimestampMillisecond(val, _) => {
eq_array_primitive!(array, index, TimestampMillisecondArray, val)
}
ScalarValue::TimestampMicrosecond(val, _) => {
eq_array_primitive!(array, index, TimestampMicrosecondArray, val)
}
ScalarValue::TimestampNanosecond(val, _) => {
eq_array_primitive!(array, index, TimestampNanosecondArray, val)
}
ScalarValue::IntervalYearMonth(val) => {
eq_array_primitive!(array, index, IntervalYearMonthArray, val)
}
ScalarValue::IntervalDayTime(val) => {
eq_array_primitive!(array, index, IntervalDayTimeArray, val)
}
ScalarValue::IntervalMonthDayNano(val) => {
eq_array_primitive!(array, index, IntervalMonthDayNanoArray, val)
}
ScalarValue::Struct(_, _) => unimplemented!(),
ScalarValue::Null => array.data().is_null(index),
}
}
fn eq_array_dictionary(
&self,
array: &ArrayRef,
index: usize,
key_type: &DataType,
) -> bool {
let (values, values_index) = match key_type {
DataType::Int8 => get_dict_value::<Int8Type>(array, index).unwrap(),
DataType::Int16 => get_dict_value::<Int16Type>(array, index).unwrap(),
DataType::Int32 => get_dict_value::<Int32Type>(array, index).unwrap(),
DataType::Int64 => get_dict_value::<Int64Type>(array, index).unwrap(),
DataType::UInt8 => get_dict_value::<UInt8Type>(array, index).unwrap(),
DataType::UInt16 => get_dict_value::<UInt16Type>(array, index).unwrap(),
DataType::UInt32 => get_dict_value::<UInt32Type>(array, index).unwrap(),
DataType::UInt64 => get_dict_value::<UInt64Type>(array, index).unwrap(),
_ => unreachable!("Invalid dictionary keys type: {:?}", key_type),
};
match values_index {
Some(values_index) => self.eq_array(values, values_index),
None => self.is_null(),
}
}
}
macro_rules! impl_scalar {
($ty:ty, $scalar:tt) => {
impl From<$ty> for ScalarValue {
fn from(value: $ty) -> Self {
ScalarValue::$scalar(Some(value))
}
}
impl From<Option<$ty>> for ScalarValue {
fn from(value: Option<$ty>) -> Self {
ScalarValue::$scalar(value)
}
}
};
}
impl_scalar!(f64, Float64);
impl_scalar!(f32, Float32);
impl_scalar!(i8, Int8);
impl_scalar!(i16, Int16);
impl_scalar!(i32, Int32);
impl_scalar!(i64, Int64);
impl_scalar!(bool, Boolean);
impl_scalar!(u8, UInt8);
impl_scalar!(u16, UInt16);
impl_scalar!(u32, UInt32);
impl_scalar!(u64, UInt64);
impl From<&str> for ScalarValue {
fn from(value: &str) -> Self {
Some(value).into()
}
}
impl From<Option<&str>> for ScalarValue {
fn from(value: Option<&str>) -> Self {
let value = value.map(|s| s.to_string());
ScalarValue::Utf8(value)
}
}
impl FromStr for ScalarValue {
type Err = Infallible;
fn from_str(s: &str) -> std::result::Result<Self, Self::Err> {
Ok(s.into())
}
}
impl From<Vec<(&str, ScalarValue)>> for ScalarValue {
fn from(value: Vec<(&str, ScalarValue)>) -> Self {
let (fields, scalars): (Vec<_>, Vec<_>) = value
.into_iter()
.map(|(name, scalar)| {
(Field::new(name, scalar.get_datatype(), false), scalar)
})
.unzip();
Self::Struct(Some(scalars), Box::new(fields))
}
}
macro_rules! impl_try_from {
($SCALAR:ident, $NATIVE:ident) => {
impl TryFrom<ScalarValue> for $NATIVE {
type Error = DataFusionError;
fn try_from(value: ScalarValue) -> Result<Self> {
match value {
ScalarValue::$SCALAR(Some(inner_value)) => Ok(inner_value),
_ => Err(DataFusionError::Internal(format!(
"Cannot convert {:?} to {}",
value,
std::any::type_name::<Self>()
))),
}
}
}
};
}
impl_try_from!(Int8, i8);
impl_try_from!(Int16, i16);
impl TryFrom<ScalarValue> for i32 {
type Error = DataFusionError;
fn try_from(value: ScalarValue) -> Result<Self> {
match value {
ScalarValue::Int32(Some(inner_value))
| ScalarValue::Date32(Some(inner_value)) => Ok(inner_value),
_ => Err(DataFusionError::Internal(format!(
"Cannot convert {:?} to {}",
value,
std::any::type_name::<Self>()
))),
}
}
}
impl TryFrom<ScalarValue> for i64 {
type Error = DataFusionError;
fn try_from(value: ScalarValue) -> Result<Self> {
match value {
ScalarValue::Int64(Some(inner_value))
| ScalarValue::Date64(Some(inner_value))
| ScalarValue::TimestampNanosecond(Some(inner_value), _)
| ScalarValue::TimestampMicrosecond(Some(inner_value), _)
| ScalarValue::TimestampMillisecond(Some(inner_value), _)
| ScalarValue::TimestampSecond(Some(inner_value), _) => Ok(inner_value),
_ => Err(DataFusionError::Internal(format!(
"Cannot convert {:?} to {}",
value,
std::any::type_name::<Self>()
))),
}
}
}
impl TryFrom<ScalarValue> for i128 {
type Error = DataFusionError;
fn try_from(value: ScalarValue) -> Result<Self> {
match value {
ScalarValue::Decimal128(Some(inner_value), _, _) => Ok(inner_value),
_ => Err(DataFusionError::Internal(format!(
"Cannot convert {:?} to {}",
value,
std::any::type_name::<Self>()
))),
}
}
}
impl_try_from!(UInt8, u8);
impl_try_from!(UInt16, u16);
impl_try_from!(UInt32, u32);
impl_try_from!(UInt64, u64);
impl_try_from!(Float32, f32);
impl_try_from!(Float64, f64);
impl_try_from!(Boolean, bool);
impl TryFrom<&DataType> for ScalarValue {
type Error = DataFusionError;
fn try_from(datatype: &DataType) -> Result<Self> {
Ok(match datatype {
DataType::Boolean => ScalarValue::Boolean(None),
DataType::Float64 => ScalarValue::Float64(None),
DataType::Float32 => ScalarValue::Float32(None),
DataType::Int8 => ScalarValue::Int8(None),
DataType::Int16 => ScalarValue::Int16(None),
DataType::Int32 => ScalarValue::Int32(None),
DataType::Int64 => ScalarValue::Int64(None),
DataType::UInt8 => ScalarValue::UInt8(None),
DataType::UInt16 => ScalarValue::UInt16(None),
DataType::UInt32 => ScalarValue::UInt32(None),
DataType::UInt64 => ScalarValue::UInt64(None),
DataType::Decimal(precision, scale) => {
ScalarValue::Decimal128(None, *precision, *scale)
}
DataType::Utf8 => ScalarValue::Utf8(None),
DataType::LargeUtf8 => ScalarValue::LargeUtf8(None),
DataType::Date32 => ScalarValue::Date32(None),
DataType::Date64 => ScalarValue::Date64(None),
DataType::Timestamp(TimeUnit::Second, tz_opt) => {
ScalarValue::TimestampSecond(None, tz_opt.clone())
}
DataType::Timestamp(TimeUnit::Millisecond, tz_opt) => {
ScalarValue::TimestampMillisecond(None, tz_opt.clone())
}
DataType::Timestamp(TimeUnit::Microsecond, tz_opt) => {
ScalarValue::TimestampMicrosecond(None, tz_opt.clone())
}
DataType::Timestamp(TimeUnit::Nanosecond, tz_opt) => {
ScalarValue::TimestampNanosecond(None, tz_opt.clone())
}
DataType::Dictionary(_index_type, value_type) => {
value_type.as_ref().try_into()?
}
DataType::List(ref nested_type) => {
ScalarValue::List(None, Box::new(nested_type.data_type().clone()))
}
DataType::Struct(fields) => {
ScalarValue::Struct(None, Box::new(fields.clone()))
}
DataType::Null => ScalarValue::Null,
_ => {
return Err(DataFusionError::NotImplemented(format!(
"Can't create a scalar from data_type \"{:?}\"",
datatype
)));
}
})
}
}
macro_rules! format_option {
($F:expr, $EXPR:expr) => {{
match $EXPR {
Some(e) => write!($F, "{}", e),
None => write!($F, "NULL"),
}
}};
}
impl fmt::Display for ScalarValue {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
ScalarValue::Decimal128(v, p, s) => {
write!(f, "{:?},{:?},{:?}", v, p, s)?;
}
ScalarValue::Boolean(e) => format_option!(f, e)?,
ScalarValue::Float32(e) => format_option!(f, e)?,
ScalarValue::Float64(e) => format_option!(f, e)?,
ScalarValue::Int8(e) => format_option!(f, e)?,
ScalarValue::Int16(e) => format_option!(f, e)?,
ScalarValue::Int32(e) => format_option!(f, e)?,
ScalarValue::Int64(e) => format_option!(f, e)?,
ScalarValue::UInt8(e) => format_option!(f, e)?,
ScalarValue::UInt16(e) => format_option!(f, e)?,
ScalarValue::UInt32(e) => format_option!(f, e)?,
ScalarValue::UInt64(e) => format_option!(f, e)?,
ScalarValue::TimestampSecond(e, _) => format_option!(f, e)?,
ScalarValue::TimestampMillisecond(e, _) => format_option!(f, e)?,
ScalarValue::TimestampMicrosecond(e, _) => format_option!(f, e)?,
ScalarValue::TimestampNanosecond(e, _) => format_option!(f, e)?,
ScalarValue::Utf8(e) => format_option!(f, e)?,
ScalarValue::LargeUtf8(e) => format_option!(f, e)?,
ScalarValue::Binary(e) => match e {
Some(l) => write!(
f,
"{}",
l.iter()
.map(|v| format!("{}", v))
.collect::<Vec<_>>()
.join(",")
)?,
None => write!(f, "NULL")?,
},
ScalarValue::LargeBinary(e) => match e {
Some(l) => write!(
f,
"{}",
l.iter()
.map(|v| format!("{}", v))
.collect::<Vec<_>>()
.join(",")
)?,
None => write!(f, "NULL")?,
},
ScalarValue::List(e, _) => match e {
Some(l) => write!(
f,
"{}",
l.iter()
.map(|v| format!("{}", v))
.collect::<Vec<_>>()
.join(",")
)?,
None => write!(f, "NULL")?,
},
ScalarValue::Date32(e) => format_option!(f, e)?,
ScalarValue::Date64(e) => format_option!(f, e)?,
ScalarValue::IntervalDayTime(e) => format_option!(f, e)?,
ScalarValue::IntervalYearMonth(e) => format_option!(f, e)?,
ScalarValue::IntervalMonthDayNano(e) => format_option!(f, e)?,
ScalarValue::Struct(e, fields) => match e {
Some(l) => write!(
f,
"{{{}}}",
l.iter()
.zip(fields.iter())
.map(|(value, field)| format!("{}:{}", field.name(), value))
.collect::<Vec<_>>()
.join(",")
)?,
None => write!(f, "NULL")?,
},
ScalarValue::Null => write!(f, "NULL")?,
};
Ok(())
}
}
impl fmt::Debug for ScalarValue {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
ScalarValue::Decimal128(_, _, _) => write!(f, "Decimal128({})", self),
ScalarValue::Boolean(_) => write!(f, "Boolean({})", self),
ScalarValue::Float32(_) => write!(f, "Float32({})", self),
ScalarValue::Float64(_) => write!(f, "Float64({})", self),
ScalarValue::Int8(_) => write!(f, "Int8({})", self),
ScalarValue::Int16(_) => write!(f, "Int16({})", self),
ScalarValue::Int32(_) => write!(f, "Int32({})", self),
ScalarValue::Int64(_) => write!(f, "Int64({})", self),
ScalarValue::UInt8(_) => write!(f, "UInt8({})", self),
ScalarValue::UInt16(_) => write!(f, "UInt16({})", self),
ScalarValue::UInt32(_) => write!(f, "UInt32({})", self),
ScalarValue::UInt64(_) => write!(f, "UInt64({})", self),
ScalarValue::TimestampSecond(_, tz_opt) => {
write!(f, "TimestampSecond({}, {:?})", self, tz_opt)
}
ScalarValue::TimestampMillisecond(_, tz_opt) => {
write!(f, "TimestampMillisecond({}, {:?})", self, tz_opt)
}
ScalarValue::TimestampMicrosecond(_, tz_opt) => {
write!(f, "TimestampMicrosecond({}, {:?})", self, tz_opt)
}
ScalarValue::TimestampNanosecond(_, tz_opt) => {
write!(f, "TimestampNanosecond({}, {:?})", self, tz_opt)
}
ScalarValue::Utf8(None) => write!(f, "Utf8({})", self),
ScalarValue::Utf8(Some(_)) => write!(f, "Utf8(\"{}\")", self),
ScalarValue::LargeUtf8(None) => write!(f, "LargeUtf8({})", self),
ScalarValue::LargeUtf8(Some(_)) => write!(f, "LargeUtf8(\"{}\")", self),
ScalarValue::Binary(None) => write!(f, "Binary({})", self),
ScalarValue::Binary(Some(_)) => write!(f, "Binary(\"{}\")", self),
ScalarValue::LargeBinary(None) => write!(f, "LargeBinary({})", self),
ScalarValue::LargeBinary(Some(_)) => write!(f, "LargeBinary(\"{}\")", self),
ScalarValue::List(_, _) => write!(f, "List([{}])", self),
ScalarValue::Date32(_) => write!(f, "Date32(\"{}\")", self),
ScalarValue::Date64(_) => write!(f, "Date64(\"{}\")", self),
ScalarValue::IntervalDayTime(_) => {
write!(f, "IntervalDayTime(\"{}\")", self)
}
ScalarValue::IntervalYearMonth(_) => {
write!(f, "IntervalYearMonth(\"{}\")", self)
}
ScalarValue::IntervalMonthDayNano(_) => {
write!(f, "IntervalMonthDayNano(\"{}\")", self)
}
ScalarValue::Struct(e, fields) => {
match e {
Some(l) => write!(
f,
"Struct({{{}}})",
l.iter()
.zip(fields.iter())
.map(|(value, field)| format!("{}:{:?}", field.name(), value))
.collect::<Vec<_>>()
.join(",")
),
None => write!(f, "Struct(NULL)"),
}
}
ScalarValue::Null => write!(f, "NULL"),
}
}
}
pub trait ScalarType<T: ArrowNativeType> {
fn scalar(r: Option<T>) -> ScalarValue;
}
impl ScalarType<f32> for Float32Type {
fn scalar(r: Option<f32>) -> ScalarValue {
ScalarValue::Float32(r)
}
}
impl ScalarType<i64> for TimestampSecondType {
fn scalar(r: Option<i64>) -> ScalarValue {
ScalarValue::TimestampSecond(r, None)
}
}
impl ScalarType<i64> for TimestampMillisecondType {
fn scalar(r: Option<i64>) -> ScalarValue {
ScalarValue::TimestampMillisecond(r, None)
}
}
impl ScalarType<i64> for TimestampMicrosecondType {
fn scalar(r: Option<i64>) -> ScalarValue {
ScalarValue::TimestampMicrosecond(r, None)
}
}
impl ScalarType<i64> for TimestampNanosecondType {
fn scalar(r: Option<i64>) -> ScalarValue {
ScalarValue::TimestampNanosecond(r, None)
}
}