postgis_typmod_out()

Datum postgis_typmod_out

(

PG_FUNCTION_ARGS

)

Definition at line 62 of file gserialized_typmod.c.

{
        StringInfoData si;
        // char *s = (char*)palloc(64);
        int32 typmod = PG_GETARG_INT32(0);
        int32 srid = TYPMOD_GET_SRID(typmod);
        int32 type = TYPMOD_GET_TYPE(typmod);
        int32 hasz = TYPMOD_GET_Z(typmod);
        int32 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) || typmod < 0)
        {
                PG_RETURN_CSTRING(pstrdup(""));
        }
 
        /* Opening bracket. */
        initStringInfo(&si);
        appendStringInfoChar(&si, '(');
 
        /* Has type? */
        if (type)
                appendStringInfo(&si, "%s", lwtype_name(type));
        else if (srid || hasz || hasm)
                appendStringInfoString(&si, "Geometry");
 
        /* Has Z? */
        if (hasz) appendStringInfoString(&si, "Z");
 
        /* Has M? */
        if (hasm) appendStringInfoString(&si, "M");
 
        /* Has SRID? */
        if (srid) appendStringInfo(&si, ",%d", srid);
 
        /* Closing bracket. */
        appendStringInfoChar(&si, ')');
 
        PG_RETURN_CSTRING(si.data);
}

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

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