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Greenplum - Architecture and SQL by Leona Coffing, Tom Coffing

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Chapter 12 – Join Functions

“When spider webs unite they can tie up a lion.”

- African Proverb

Greenplum Join Quiz

Which Statement is NOT true!

1.Each Table in Greenplum has a distribution key, unless it is a No distribution key Table (NoPI).

2.The distribution key is the mechanism that allows Greenplum to physically distribute the rows of a table across the segments.

3.For two rows to be Joined together Greenplum insists that both rows are physically on the same segment.

4.Greenplum a will either Redistribute one or both of the tables or Duplicate the smaller table across all segments to ensure matching rows are on the same segment, even if it is only for the life of the Join.

Do you know which statement above is False?

Greenplum Join Quiz ...

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