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fix: Don't vertically parallelize cse contexts (#18177)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,91 @@ | ||
| use arrow::temporal_conversions::{MICROSECONDS, MILLISECONDS, NANOSECONDS, SECONDS_IN_DAY}; | ||
| use polars_core::datatypes::{AnyValue, DataType, TimeUnit}; | ||
| use polars_core::prelude::Series; | ||
| use polars_error::PolarsResult; | ||
|
|
||
| pub fn impl_duration(s: &[Series], time_unit: TimeUnit) -> PolarsResult<Series> { | ||
| if s.iter().any(|s| s.is_empty()) { | ||
| return Ok(Series::new_empty( | ||
| s[0].name(), | ||
| &DataType::Duration(time_unit), | ||
| )); | ||
| } | ||
|
|
||
| // TODO: Handle overflow for UInt64 | ||
| let weeks = s[0].cast(&DataType::Int64).unwrap(); | ||
| let days = s[1].cast(&DataType::Int64).unwrap(); | ||
| let hours = s[2].cast(&DataType::Int64).unwrap(); | ||
| let minutes = s[3].cast(&DataType::Int64).unwrap(); | ||
| let seconds = s[4].cast(&DataType::Int64).unwrap(); | ||
| let mut milliseconds = s[5].cast(&DataType::Int64).unwrap(); | ||
| let mut microseconds = s[6].cast(&DataType::Int64).unwrap(); | ||
| let mut nanoseconds = s[7].cast(&DataType::Int64).unwrap(); | ||
|
|
||
| let is_scalar = |s: &Series| s.len() == 1; | ||
| let is_zero_scalar = |s: &Series| is_scalar(s) && s.get(0).unwrap() == AnyValue::Int64(0); | ||
|
|
||
| // Process subseconds | ||
| let max_len = s.iter().map(|s| s.len()).max().unwrap(); | ||
| let mut duration = match time_unit { | ||
| TimeUnit::Microseconds => { | ||
| if is_scalar(µseconds) { | ||
| microseconds = microseconds.new_from_index(0, max_len); | ||
| } | ||
| if !is_zero_scalar(&nanoseconds) { | ||
| microseconds = (microseconds + (nanoseconds.wrapping_trunc_div_scalar(1_000)))?; | ||
| } | ||
| if !is_zero_scalar(&milliseconds) { | ||
| microseconds = (microseconds + (milliseconds * 1_000))?; | ||
| } | ||
| microseconds | ||
| }, | ||
| TimeUnit::Nanoseconds => { | ||
| if is_scalar(&nanoseconds) { | ||
| nanoseconds = nanoseconds.new_from_index(0, max_len); | ||
| } | ||
| if !is_zero_scalar(µseconds) { | ||
| nanoseconds = (nanoseconds + (microseconds * 1_000))?; | ||
| } | ||
| if !is_zero_scalar(&milliseconds) { | ||
| nanoseconds = (nanoseconds + (milliseconds * 1_000_000))?; | ||
| } | ||
| nanoseconds | ||
| }, | ||
| TimeUnit::Milliseconds => { | ||
| if is_scalar(&milliseconds) { | ||
| milliseconds = milliseconds.new_from_index(0, max_len); | ||
| } | ||
| if !is_zero_scalar(&nanoseconds) { | ||
| milliseconds = (milliseconds + (nanoseconds.wrapping_trunc_div_scalar(1_000_000)))?; | ||
| } | ||
| if !is_zero_scalar(µseconds) { | ||
| milliseconds = (milliseconds + (microseconds.wrapping_trunc_div_scalar(1_000)))?; | ||
| } | ||
| milliseconds | ||
| }, | ||
| }; | ||
|
|
||
| // Process other duration specifiers | ||
| let multiplier = match time_unit { | ||
| TimeUnit::Nanoseconds => NANOSECONDS, | ||
| TimeUnit::Microseconds => MICROSECONDS, | ||
| TimeUnit::Milliseconds => MILLISECONDS, | ||
| }; | ||
| if !is_zero_scalar(&seconds) { | ||
| duration = (duration + seconds * multiplier)?; | ||
| } | ||
| if !is_zero_scalar(&minutes) { | ||
| duration = (duration + minutes * (multiplier * 60))?; | ||
| } | ||
| if !is_zero_scalar(&hours) { | ||
| duration = (duration + hours * (multiplier * 60 * 60))?; | ||
| } | ||
| if !is_zero_scalar(&days) { | ||
| duration = (duration + days * (multiplier * SECONDS_IN_DAY))?; | ||
| } | ||
| if !is_zero_scalar(&weeks) { | ||
| duration = (duration + weeks * (multiplier * SECONDS_IN_DAY * 7))?; | ||
| } | ||
|
|
||
| duration.cast(&DataType::Duration(time_unit)) | ||
| } |
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