H3_IsValid - Amazon Redshift
SyntaxArgumentsReturn typeExamples
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H3_IsValid

H3_IsValid returns true if the input represents an H3 cell ID, otherwise false. For information about H3 indexing, see H3.

Syntax

H3_IsValid(index)

Arguments

index

A value of data type BIGINT or VARCHAR, or an expression that evaluates to one of these data types.

Return type

BOOLEAN – true if the input represents a valid H3 cell ID, false otherwise.

If index is NULL, then NULL is returned.

Examples

The following SQL inputs a VARCHAR that represents an H3 cell ID, and returns true.

SELECT H3_IsValid('8025fffffffffff');

 h3_isvalid
------------
 true

The following SQL inputs a BIGINT that represents an H3 cell ID, and returns true.

SELECT H3_IsValid(577129255373111295);

 h3_isvalid
------------
 true

The following SQL inputs an invalid H3 cell ID and returns false.

SELECT H3_IsValid('');

 h3_isvalid
------------
 false