Pig Latin – Other Operators
Returns the schema of an alias.
Displays execution plans.
Use the EXPLAIN operator to review the logical, physical, and map reduce execution plans that are used to compute the specified relationship.
Note – This feature is NOT maintained at the moment.
Displays a step-by-step execution of a sequence of statements.
Registers a JAR file so that the UDFs in the file can be used.
It is an operator which changes the structure of tuples and bag. Flatten un-nests tuples as well as bags.
X = FOREACH C GENERATE group, FLATTEN(A); X = FOREACH C GENERATE GROUP, FLATTEN(A.name);