org.apache.spark.sql.catalyst.analysis.Analyzer
Replaces UnresolvedAttributes with concrete AttributeReferences from a logical plan node's children.
Returns true if exprs contains a Star.
exprs
Expands the matching attribute.*'s in child's output.
child
Name for this rule, automatically inferred based on class name.
Replaces UnresolvedAttributes with concrete AttributeReferences from a logical plan node's children.