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ARROW-14350: [IR] Add filter expression to Source node #11438

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ARROW-14350: [IR] Add filter expression to Source node #11438

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d2c1a1a
Add filter expression to support predicate pushdown
cpcloud Oct 15, 2021
49f6637
Regenerate code
cpcloud Oct 15, 2021
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21 changes: 20 additions & 1 deletion cpp/src/generated/Relation_generated.h
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7 changes: 7 additions & 0 deletions experimental/computeir/Relation.fbs
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Expand Up @@ -197,6 +197,13 @@ table LiteralRelation {
table Source {
base: RelBase (required);
name: string (required);
/// An optional expression used to filter out rows directly from the source.
///
/// Useful for consumers that implement predicate pushdown.
///
/// A missing filter value indicates no filter, i.e., all rows are
/// returned from the source.
filter: Expression;
schema: org.apache.arrow.flatbuf.Schema (required);
}

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