Re: gist access methods parameter types

--Spatio-Temporal Position in 3 Dimensions(cartessian x, cartessian y, time)

CREATE TYPE pos3d AS

(

  x double precision,

  y double precision,

  t timestamp

);

--Spatio-Temporal Delta (comes from Δ, meaning alteration/change)

  --i stands for (i)nitial position

  --e stands for (e)nding position

  --trajectory holds the id of the trajectory in which the current delta belongs to

CREATE TYPE delta3d AS

(

  i pos3d,

  e pos3d,

  trajectory integer

);

typedef struct {

    float8 xi, yi;

    Timestamp ti;

    float8 xe, ye;

    Timestamp te;

    int32 trajectory;

} delta3d;

typedef struct {

    float8 xl, yl;

    Timestamp tl;

    float8 xh, yh;

    Timestamp th;

} delta3d_mbb;