Package org.apache.druid.sql.calcite.aggregation
package org.apache.druid.sql.calcite.aggregation
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ClassDescriptionImplementation for APPROX_COUNT_DISTINCT, and for COUNT(DISTINCT expr) when
useApproximateCountDistinctis enabled.This annotation is to distinguishSqlAggFunctionwhich supports the distinct aggregation nativelyModule that provides SQL aggregations.Bridge between Druid and SQL aggregators.