Module single_distinct_to_groupby 

SingleDistinctToGroupBy replaces AGG(DISTINCT ..) with AGG(..) GROUP BY ..

Structs

SingleDistinctToGroupBy

single distinct to group by optimizer rule

Constants

SINGLE_DISTINCT_ALIAS 🔒

Functions

contains_grouping_set 🔒

Check if the first expr is Expr::GroupingSet.

is_single_distinct_agg 🔒

Check whether all aggregate exprs are distinct on a single field.