Definition.sql File Reference

The implementantion in sql of PointST. More...

Functions
pointst	inpointst (cstring)
cstring	outpointst (pointst)
pointst	recvpointst (internal)
bytea	send (pointst)
boolean	equals (pointst pointa, pointst pointb)
integer	hash (pointst point)
timestamp	gett (pointst point)
	The function returns the timestamp of the PointST. More...
pointsp	getsp (pointst point)
	The function returns the coordinates of the PointST. More...
integer	getx (pointst point)
	The function returns the x coordinate of the PointST. More...
integer	gety (pointst point)
	The function returns the y coordinate of the PointST. More...
pointst	pointst (timestamp t, integer x, integer y)
pointst	pointst (timestamp t, pointsp sp)
pointst	clone (pointst point)

Detailed Description

The implementantion in sql of PointST.

Author

Marios Vodas (mvoda.nosp@m.s@gm.nosp@m.ail.c.nosp@m.om).

PointST is a spatial data type used in Hermes

See also

Spatio-temporal data types

Function Documentation

pointst clone

(

pointst

point

)

boolean equals	(	pointst	pointa,
		pointst	pointb
	)

pointsp getsp

(

pointst

point

)

The function returns the coordinates of the PointST.

Parameters

[in]

point

The PointST

Returns

the coordinates

See also

get

timestamp gett

(

pointst

point

)

The function returns the timestamp of the PointST.

Parameters

[in]

point

The PointST

Returns

the timestamp

See also

get

integer getx

(

pointst

point

)

The function returns the x coordinate of the PointST.

Parameters

[in]

point

The PointST

Returns

the x coordinate

See also

get

integer gety

(

pointst

point

)

The function returns the y coordinate of the PointST.

Parameters

[in]

point

The PointST

Returns

the y coordinate

See also

get

integer hash

(

pointst

point

)

pointst inpointst

(

cstring

)

cstring outpointst

(

pointst

)

pointst pointst	(	timestamp	t,
		integer	x,
		integer	y
	)

pointst pointst	(	timestamp	t,
		pointsp	sp
	)

pointst recvpointst

(

internal

)

bytea send

(

pointst

)