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H3_IS_PENTAGON¶
Returns TRUE if the boundary of an H3 cell represents a pentagon.
Syntax¶
H3_IS_PENTAGON( <cell_id> )
Arguments¶
cell_id
An INTEGER value that represents the H3 cell ID (index), or a VARCHAR value that represents the cell ID in hexadecimal format.
Returns¶
Returns a BOOLEAN or NULL.
The value is TRUE if the input represents a pentagon. Otherwise, returns FALSE.
If the input is NULL, returns NULL without reporting an error.
Examples¶
The following example specifies an integer that does not represent a pentagon.
SELECT H3_IS_PENTAGON(613036919424548863);
+------------------------------------+
| H3_IS_PENTAGON(613036919424548863) |
|------------------------------------|
| False |
+------------------------------------+
The following example specifies a hexadecimal string that represents a pentagon.
SELECT H3_IS_PENTAGON('804dfffffffffff');
+-----------------------------------+
| H3_IS_PENTAGON('804DFFFFFFFFFFF') |
|-----------------------------------|
| True |
+-----------------------------------+