ST_WITHIN
Returns TRUE if the first GEOMETRY object is completely within the second GEOMETRY object.
Syntax
ST_WITHIN(<geometry1>, <geometry2>)
Arguments
Return Type
Boolean.
Examples
SELECT ST_WITHIN(
TO_GEOMETRY('POINT(1 1)'),
TO_GEOMETRY('POLYGON((0 0, 2 0, 2 2, 0 2, 0 0))')
) AS within;
╭─────────╮
│ within │
├─────────┤
│ true │
╰─────────╯