Is there an ANSI Specification for the PIVOT statement?

Lately I asked the question How can I use PIVOT to show simultaneous average and count in its cells?

The question is answered for SQ开发者_开发知识库L-Server (2005+) and Oracle (11g +)

Obviously the sql-server implementation is rather limited and Oracle implementation yields strange column names.

Are these independent solutions or are there based on some ANSI-standards?

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It isn't in ANSI-92.

The later versions are not freely available (as far as I can tell) except a draft SQL:2003. Also not mentioned

Note: neither pivot nor cross-tab are mentioned