Class: Polars::ExtensionExpr

Inherits:
Object
  • Object
show all
Defined in:
lib/polars/extension_expr.rb

Overview

Namespace for extension type related expressions.

Instance Method Summary collapse

Instance Method Details

#storage ⇒ Expr

Note:

This functionality is currently considered unstable. It may be changed at any point without it being considered a breaking change.

Get the storage values of an extension data type.

If the input does not have an extension data type, it is returned as-is.

Returns:



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# File 'lib/polars/extension_expr.rb', line 35

def storage
  Utils.wrap_expr(_rbexpr.ext_storage)
end

#to(dtype) ⇒ Expr

Note:

This functionality is currently considered unstable. It may be changed at any point without it being considered a breaking change.

Convert to an extension dtype.

The input must be of the storage type of the extension dtype.

Returns:



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# File 'lib/polars/extension_expr.rb', line 21

def to(dtype)
  rb_dtype = Utils.parse_into_datatype_expr(dtype)._rbdatatype_expr
  Utils.wrap_expr(_rbexpr.ext_to(rb_dtype))
end