postgis_typmod_out()

Datum postgis_typmod_out

(

PG_FUNCTION_ARGS

)

Definition at line 63 of file gserialized_typmod.c.

References lwtype_name(), s, ovdump::type, TYPMOD_GET_M, TYPMOD_GET_SRID, TYPMOD_GET_TYPE, and TYPMOD_GET_Z.

{
        char *s = (char*)palloc(64);
        char *str = s;
        uint32 typmod = PG_GETARG_INT32(0);
        uint32 srid = TYPMOD_GET_SRID(typmod);
        uint32 type = TYPMOD_GET_TYPE(typmod);
        uint32 hasz = TYPMOD_GET_Z(typmod);
        uint32 hasm = TYPMOD_GET_M(typmod);

        POSTGIS_DEBUGF(3, "Got typmod(srid = %d, type = %d, hasz = %d, hasm = %d)", srid, type, hasz, hasm);

        /* No SRID or type or dimensionality? Then no typmod at all. Return empty string. */
        if ( ! ( srid || type || hasz || hasm ) )
        {
                *str = '\0';
                PG_RETURN_CSTRING(str);
        }

        /* Opening bracket. */
        str += sprintf(str, "(");

        /* Has type? */
        if ( type )
                str += sprintf(str, "%s", lwtype_name(type));
  else if ( (!type) &&  ( srid || hasz || hasm ) )
    str += sprintf(str, "Geometry");

        /* Has Z? */
        if ( hasz )
                str += sprintf(str, "%s", "Z");

        /* Has M? */
        if ( hasm )
                str += sprintf(str, "%s", "M");

        /* Comma? */
        if ( srid )
                str += sprintf(str, ",");

        /* Has SRID? */
        if ( srid )
                str += sprintf(str, "%d", srid);

        /* Closing bracket. */
        str += sprintf(str, ")");

        PG_RETURN_CSTRING(s);

}

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