Re: [REVIEW] Re: Compression of full-page-writes

Hello,

Please find attached  a patch. As discussed, flag to denote compression and presence of hole in block image has been
addedin XLogRecordImageHeader rather than block header.   

Following are WAL numbers based on attached  test script  posted by Michael earlier in the thread.

                                                      WAL generated
FPW compression on           122.032 MB

FPW compression off           155.223 MB

HEAD                                          155.236 MB

Compression : 21 %
Number of block images generated in WAL :   63637


Thank you,
Rahila Syed


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