Expand description
PruningPredicate
to apply filter Expr
to prune “containers”
based on statistics (e.g. Parquet Row Groups)
Structs§
- Rewrite a predicate expression in terms of statistics (min/max/null_counts) for use as a
PruningPredicate
. - Used to prove that arbitrary predicates (boolean expression) can not possibly evaluate to
true
given information about a column provided byPruningStatistics
.
Traits§
- A source of runtime statistical information to
PruningPredicate
s. - Rewrites predicates that
PredicateRewriter
can not handle, e.g. certain complex expressions or predicates that reference columns that are not in the schema.