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can_hash in datafusion_expr::utils - Rust
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Function datafusion_expr::utils::can_hash

source · [−]
pub fn can_hash(data_type: &DataType) -> bool
Expand description

can this data type be used in hash join equal conditions?? data types here come from function ‘equal_rows’, if more data types are supported in equal_rows(hash join), add those data types here to generate join logical plan.