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PartitionEvaluatorArgs

datafusion_python::datafusion_expr::function

Struct PartitionEvaluatorArgs 

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pub struct PartitionEvaluatorArgs<'a> { /* private fields */ }
Expand description

Arguments passed to created user-defined window function state during physical execution.

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impl<'a> PartitionEvaluatorArgs<'a>

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pub fn new( input_exprs: &'a [Arc<dyn PhysicalExpr>], input_fields: &'a [Arc<Field>], is_reversed: bool, ignore_nulls: bool, ) -> PartitionEvaluatorArgs<'a>

Create an instance of PartitionEvaluatorArgs.

§Arguments
  • input_exprs - The expressions passed as arguments to the user-defined window function.
  • input_fields - The fields corresponding to the arguments to the user-defined window function.
  • is_reversed - Set to true if and only if the user-defined window function is reversible and is reversed.
  • ignore_nulls - Set to true when IGNORE NULLS is specified.
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pub fn input_exprs(&self) -> &'a [Arc<dyn PhysicalExpr>]

Returns the expressions passed as arguments to the user-defined window function.

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pub fn input_fields(&self) -> &'a [Arc<Field>]

Returns the FieldRefs corresponding to the input expressions to the user-defined window function.

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pub fn is_reversed(&self) -> bool

Returns true when the user-defined window function is reversed, otherwise returns false.

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pub fn ignore_nulls(&self) -> bool

Returns true when IGNORE NULLS is specified, otherwise returns false.

Trait Implementations§

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impl<'a> Debug for PartitionEvaluatorArgs<'a>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl<'a> Default for PartitionEvaluatorArgs<'a>

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fn default() -> PartitionEvaluatorArgs<'a>

Returns the “default value” for a type. Read more
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impl<'a> From<&'a ForeignPartitionEvaluatorArgs> for PartitionEvaluatorArgs<'a>

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fn from(value: &'a ForeignPartitionEvaluatorArgs) -> PartitionEvaluatorArgs<'a>

Converts to this type from the input type.

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