What is the difference between a ship operator and a rehash operator? A A rehash operator takes the output of a query subexpression and routes it to the input of a query plan on another node, while a ship operator hashes keys to machines.   B A rehash operator divides ranges across the machines, while a ship operator hashes keys to machines. (C) A ship operator takes the output of a query subexpression and routes it to the input of a query plan on another node, while a rehash operator hashes keys to machines. (D) A rehash operator performs load balancing across machines, while a hash operator hashes keys to machines

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Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.