Add ROLLUP and GROUPING SETS substrait support #7382
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alamb
changed the title
waynexia
approved these changes
Aug 24, 2023
| async fn aggregate_grouping_rollup() -> Result<()> { | ||
| assert_expected_plan( | ||
| "SELECT a, c, e, avg(b) FROM data GROUP BY ROLLUP (a, c, e)", | ||
| "Aggregate: groupBy=[[GROUPING SETS ((data.a, data.c, data.e), (data.a, data.c), (data.a), ())]], aggr=[[AVG(data.b)]]\ |
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| for i in 0..set.len() { | ||
| sets.push(set[..=i].to_vec()); | ||
| } |
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This looks great. It generates the same result (after .rev()) with create_rollup_physical_expr
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I merged this branch up from `main to resolve a conflict. I hope to merge it when CI completes |
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Which issue does this PR close?
Closes #7381 .
Rationale for this change
To add support for aggregation with
ROLLUPandGROUPING SETS.What changes are included in this PR?
Expr::GroupingSettosubstrait::proto::aggregate_rel::GroupingRollupgets expanded into equivalent grouping sets, since Substrait doesn't have a dedicated type forROLLUPCubeis not yet supportedsubstrait::proto::aggregate_rel::GroupingtoExpr::GroupingSetAre these changes tested?
Yes.
Are there any user-facing changes?
No.
No.