NGA-TRAN commented on a change in pull request #1030:
URL: https://github.com/apache/arrow-datafusion/pull/1030#discussion_r713137745
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File path: datafusion/src/logical_plan/expr.rs
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@@ -1360,24 +1360,63 @@ pub fn in_list(expr: Expr, list: Vec<Expr>, negated:
bool) -> Expr {
pub trait Literal {
/// convert the value to a Literal expression
fn lit(&self) -> Expr;
+
+ /// convert the number to literal expression of timestamp in nanosecond
+ fn lit_timestamp_nanosecond(&self) -> Expr;
Review comment:
@alamb @Dandandan and @houqp I have added a new trait for it. Can you
have a look?
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