AssHero commented on code in PR #2702:
URL: https://github.com/apache/arrow-datafusion/pull/2702#discussion_r890711868
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datafusion/expr/src/utils.rs:
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@@ -643,6 +644,35 @@ pub fn expr_as_column_expr(expr: &Expr, plan:
&LogicalPlan) -> Result<Expr> {
}
}
+/// can this data type be used in hash join equal conditions??
+/// If more data types are supported in hash join, add those data types here
+/// to generate join logical plan.
+pub fn can_hash(data_type: &DataType) -> bool {
+ match data_type {
Review Comment:
Data types here come from function equal_rows, decimal is not supported in
equal_rows.
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