Excerpts from jagan's message of jue abr 14 17:30:17 -0300 2011: > In general, what is the best way to unpack buffers containing tuples? > I came across "heap_form_tuple" but not sure if that is most optimal > way to go about. Is there some documentation on how tuples are > internally stored?
Unpack buffers containing tuples? You don't do that. If you have a page that comes from a table, you grab the tuple offset from the line pointer, and start decoding there (probably heap_deform_tuple is what you need; note you need a tuple descriptor). If you have something that comes from a WAL record, I don't think that's considered unpackable directly -- you have to copy it elsewhere first. I might be wrong about this though. What is the use case for this tool you're writing? -- Álvaro Herrera <alvhe...@commandprompt.com> The PostgreSQL Company - Command Prompt, Inc. PostgreSQL Replication, Consulting, Custom Development, 24x7 support -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
