DISTRIBUTE BY

Function

This statement is used to bucket a table according to the field.

Syntax

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SELECT attr_expr_list FROM table_reference
  DISTRIBUTE BY col_name [,col_name ,...];

Keyword

DISTRIBUTE BY: Buckets are created based on specified fields. A single field or multiple fields are supported, and the fields are not sorted in the bucket. This parameter is used together with SORT BY to sort data after bucket division.

Precautions

The to-be-sorted table must exist. If this statement is used to sort a table that does not exist, an error is reported.

Example Value

To bucket the student table according to the score field, run the following statement:

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SELECT * FROM student
  DISTRIBUTE BY score;