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Reference : SQL Functionality for the Impala Wire Protocol Driver : SQL Expressions : Logical Operators
 

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Logical Operators
A logical operator combines the results of two component conditions to produce a single result or to invert the result of a single condition. The following table lists the supported logical operators.
Table 133. Logical Operators
Operator
Support in Impala HQL
NOT !
Supported
AND &&
Supported
OR ||
Supported