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Support all equality predicates in equality join #4193

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merged 12 commits into from
Nov 17, 2022
Merged

Support all equality predicates in equality join #4193

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4352bb2
Support normal expressions in equality join
ygf11 Nov 11, 2022
60629ac
Add some tests
ygf11 Nov 14, 2022
0156249
Improve comment
ygf11 Nov 14, 2022
003ff98
Update datafusion/sql/src/planner.rs
ygf11 Nov 16, 2022
0f7547e
Add another test case
ygf11 Nov 16, 2022
3a04cbd
Add comment
ygf11 Nov 16, 2022
5786cc8
Merge upstream/master branch into ygf11/expr-eq-join
ygf11 Nov 16, 2022
f605adf
fix typo
ygf11 Nov 16, 2022
1a9a672
remove dumplicated keys in projection and add test cases
ygf11 Nov 17, 2022
e8f6580
Merge upstream/master branch to ygf11/expr-eq-join
ygf11 Nov 17, 2022
b5ec653
fix comment
ygf11 Nov 17, 2022
15188e8
fix typo
ygf11 Nov 17, 2022
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12 changes: 12 additions & 0 deletions datafusion/expr/src/utils.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -771,6 +771,18 @@ pub fn can_hash(data_type: &DataType) -> bool {
}
}

/// Check whether all columns are from the schema.
pub fn check_all_column_from_schema(
columns: &HashSet<Column>,
schema: DFSchemaRef,
) -> Result<bool> {
let result = columns
.iter()
.all(|column| schema.index_of_column(column).is_ok());

Ok(result)
}

#[cfg(test)]
mod tests {
use super::*;
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