Re: Add RESPECT/IGNORE NULLS and FROM FIRST/LAST options

Attached are the v18 patches for adding RESPECT/IGNORE NULLS options
to some window functions. Recent changes to doc/src/sgml/func.sgml
required v17 to be rebased. Other than that, nothing has been changed.

Oliver, do you have any comments on the patches?

> Attached are the v17 patches for adding RESPECT/IGNORE NULLS options
> defined in the standard to some window functions. FROM FIRST/LAST
> options are not considered in the patch (yet).
> 
> This time I split the patch into 6
> patches for reviewer's convenience. Also each patch has a short commit
> message to explain the patch.
> 
> 0001: parse and analysis
> 0002: rewriter
> 0003: planner
> 0004: executor
> 0005: documents
> 0006: tests

Best regards,
--
Tatsuo Ishii
SRA OSS K.K.
English: http://www.sraoss.co.jp/index_en/
Japanese:http://www.sraoss.co.jp