[WIP] Pass columns required by upstream query for group-by pushdown #9698
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sergey-melnychuk
changed the title
| @@ -146,12 +148,16 @@ public Result apply(AggregationNode node, Captures captures, Context context) | |||
| .map(groupByColumn -> assignments.get(groupByColumn.getName())) | |||
| .collect(toImmutableList()); | |||
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| // TODO FIXME How to get columns required by upstream query? | |||
| Set<String> requiredColumns = Collections.emptySet(); | |||
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Still unsure how to properly propagate columns required by the upstream query.
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Even with heuristics applied, the query (from the issue) fails without column that is considered redundant. The issue seems to be addressed in #9832. |
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Suggestion how to proceed with #9021