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MySQL 5.7 Reference Manual
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12.16.7.2 Point Property Functions

APoint consists of X and Y coordinates, which may be obtained using the following functions:

  • ST_X(p)

    Returns the X-coordinate value for thePoint objectp as a double-precision number.

    mysql> SELECT ST_X(Point(56.7, 53.34));+--------------------------+| ST_X(Point(56.7, 53.34)) |+--------------------------+|                     56.7 |+--------------------------+

    ST_X() andX() are synonyms.

  • ST_Y(p)

    Returns the Y-coordinate value for thePoint objectp as a double-precision number.

    mysql> SELECT ST_Y(Point(56.7, 53.34));+--------------------------+| ST_Y(Point(56.7, 53.34)) |+--------------------------+|                    53.34 |+--------------------------+

    ST_Y() andY() are synonyms.

  • X(p)

    ST_X() andX() are synonyms. For more information, see the description ofST_X().

    X() is deprecated; expect it to be removed in a future MySQL release. UseST_X() instead.

  • Y(p)

    ST_Y() andY() are synonyms. For more information, see the description ofST_Y().

    Y() is deprecated; expect it to be removed in a future MySQL release. UseST_Y() instead.