"Paul Ramsey" <pram...@cleverelephant.ca> writes:
> Simple question on CREATE TYPE (I hope):
> When using the "alignment" option, and setting it to "double", what
> ends up double aligned? VARDATA()? The whole thing datum (so that the
> alignment of VARDATA() is actually conditioned on the size of
> VARHDRSZ) ?
No, the value as a whole. If you're talking about a varlena-format
value then the length word will start on a double boundary, and you'll
have to waste a word of alignment padding if the data payload has to
start on a double boundary.
regards, tom lane
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