def getExtentsPointerRec(epr_binary):
extKey = getExtentsKey(epr_binary[:12])
nodeNum = unpack_from(">I", epr_binary[12:])[0]
return ss.BTRecord(extKey, ss.BTPointer(nodeNum))
def getAttributesPointerRec(apr_binary):
keyLen = unpack_from(">H", apr_binary)[0]
attKey = getAttributesKey(apr_binary[:2 + keyLen])
nodeNum = unpack_from(">I", apr_binary[2 + keyLen:])[0]
return ss.BTRecord(attKey, ss.BTPointer(nodeNum))
def getCatalogPointerRec(cpr_binary):
keyLen = unpack_from(">H", cpr_binary)[0]
catalKey = getCatalogKey(cpr_binary[:2 + keyLen])
nodeNum = unpack_from(">I", cpr_binary[2 + keyLen:])[0]
return ss.BTRecord(catalKey, ss.BTPointer(nodeNum))