Package org.elasticsearch.xpack.esql.expression
package org.elasticsearch.xpack.esql.expression
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ClassDescriptionA utility class to validate the type resolution of expressions before and after logical planning.Interface signaling to the planner that the declaring expression has to be replaced by a different form.Unresolved expression for encapsulating a pattern: KEEP `a*`, b*, `c*`*`d*` a* is an actual name (UnresolvedAttribute) b* is a name pattern (this class) `c*`*`d*` is a name pattern