Dandandan commented on a change in pull request #9038:
URL: https://github.com/apache/arrow/pull/9038#discussion_r549554046
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File path: rust/datafusion/src/logical_plan/expr.rs
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@@ -158,6 +158,15 @@ pub enum Expr {
/// List of expressions to feed to the functions as arguments
args: Vec<Expr>,
},
+ /// Returns whether the list contains the expr value.
+ InList {
+ /// The value to compare
+ expr: Box<Expr>,
+ /// The low end of the range
+ list: Vec<Expr>,
+ /// Whether the expression is negated
+ negated: bool,
Review comment:
This helps keeping the logical plan simple, and also makes future code
that uses the LP tree simple, e.g. an optimization rule on `not(..)`
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