nö, das ist der stand von 2006, da gab es noch gar kein execute block
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Zitat:
The limit applies to the BLR (byte code) where every table reference is encoded with a single-byte number. Thus the limit is static and does not affect how many times the procedure is executed.
BLR is per-procedure, so one procedure call cannot have more than 255 table references, but many different calls do not share this limit.
EXECUTE PROCEDURE does not create a context, so EXECUTE BLOCK may have lots of them. However, SELECT FROM PROCEDURE creates a context, so your EXECUTE BLOCK cannot have more than 255 SELECTs from procedures.