xudong963 commented on a change in pull request #1943:
URL: https://github.com/apache/arrow-datafusion/pull/1943#discussion_r821243638
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File path: datafusion-expr/src/expr.rs
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@@ -399,7 +399,7 @@ impl fmt::Debug for Expr {
match self {
Expr::Alias(expr, alias) => write!(f, "{:?} AS {}", expr, alias),
Expr::Column(c) => write!(f, "{}", c),
- Expr::ScalarVariable(var_names) => write!(f, "{}",
var_names.join(".")),
+ Expr::ScalarVariable(_, var_names) => write!(f, "{}",
var_names.join(".")),
Review comment:
It'll be better to print the data type, such as
`Expr::ScalarVariable(data_type, var_names) => write!(f, "{}, data type:
{}", var_names.join("."), data_type),`
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