Per some discussions with a number of different people at pgconfeu, here is a patch that changes the default mode of pg_basebackup to be streaming the wal, as this is what most users would want -- and those that don't want it have to make other changes as well. Doing the "most safe" thing by default is a good idea.
The new option "-x none" is provided to turn this off and get the previous behavior back.
I will add this to the next (January) commitfest.
//Magnus
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Magnus Hagander
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