clintropolis commented on code in PR #18342:
URL: https://github.com/apache/druid/pull/18342#discussion_r2245071887
##########
processing/src/main/java/org/apache/druid/segment/AggregateProjectionMetadata.java:
##########
@@ -554,9 +616,73 @@ public String toString()
", aggregators=" + Arrays.toString(aggregators) +
", ordering=" + ordering +
", timeColumnPosition=" + timeColumnPosition +
- ", granularity=" + granularity +
+ ", effectiveGranularity=" + effectiveGranularity +
", orderingWithTimeSubstitution=" + orderingWithTimeSubstitution +
'}';
}
}
+
+ /**
+ * Rewrites a query {@link Filter} if possible, removing the {@link Filter}
of a projection. To match a projection
+ * filter, the query filter must be equal to the projection filter, or must
contain the projection filter as the child
+ * of an AND filter. This method returns null
+ * indicating that a rewrite is impossible with the implication that the
query cannot use the projection because the
+ * projection doesn't contain all the rows the query would match if not
using the projection.
+ */
+ @Nullable
+ public static Filter rewriteFilter(@Nullable Filter projectionFilter,
@Nullable Filter queryFilter)
+ {
+ if (projectionFilter == null || queryFilter == null) {
Review Comment:
oops, not anymore
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