Expand description
Traits for converting Rust Types to Spark Connect Expression Types
Spark Connect has a few different ways of creating expressions and different gRPC methods require expressions in different forms. These traits are used to either translate a value into a spark::Expression or into a spark::expression::Literal.
§Overview
- ToExpr accepts a
&str,String, or Column. This trait uses the methodfromon the Column to create an expression. - ToLiteral is used for taking rust types into a spark::expression::Literal. These values are then converted into an expression
- ToLiteralExpr` takes a literal value and converts it into a spark::Expression
- ToVecExpr many gRPC methods require a
Vec<spark::Expression>this trait is a shorthand for that transformation - ToFilterExpr is specifically used for filter statements
Traits§
- ToExpr
- Translate string values into a
spark::Expression - ToFilter
Expr - Create a filter expression
- ToLiteral
- Translate a rust value into a literal type
- ToLiteral
Expr - Wrap a literal value into a
spark::Expression - ToVec
Expr - Translate values into a
Vec<spark::Expression>