null terminated strings. The FE/BE protocol sends in some cases null
terminated strings to the client. The docs for the FE/BE protocol state
that there is no limit on the size of a null terminated string sent to
the client and a client should be coded using an expanding buffer to
deal with large strings. The old code did not do this and gave an error
if a null terminated string was greater than either 4 or 8K. It appears
that with the advent of TOAST very long SQL statements are becoming more
common, and apparently some error messages from the backend include the
SQL statement thus easily exceeding the 8K limit in the old code.
In fixing I also cleaned up some calls in the JDBC fastpath code that
were not doing character set conversion under multibyte, and removed
some methods that were no longer needed. I also removed a potential
threading problem with a shared variable that was being used in
Connection.java.
Thanks to Steve Wampler for discovering the problem and sending the
initial diffs that were the basis of this patch.
thanks,
--Barry
validity checking rules for VACUUM. Make some other rearrangements of the
VACUUM code to allow more code to be shared between full and lazy VACUUM.
Minor code cleanups and added comments for TransactionId manipulations.
a lie on many Unixen), invoke listen() with MIN(MaxBackends*2, 10000).
The clamp value 10000 is configurable in config.h.in, if that proves
to be necessary --- hopefully it won't.
This makes VACUUM work properly with partial indexes, and avoids memory
leakage with functional indexes. Also, suppress complaint about fewer
index tuples than heap tuples when the index is a partial index.
From Martijn van Oosterhout.
USER and ALTER USER to appear in any order, not only the fixed order
they used to be required to appear in.
Also, some changes from Tom Lane to create a FULL option for VACUUM;
it doesn't do anything yet, but I needed to change many of the same
files to make that happen, so now seemed like a good time.
choice of compiler and flags, uninstall, and peculiar Python installation
layouts for PyGreSql. Also install into site-packages now, as officially
recommended. And pgdb.py is also installed now, used to be forgotten.
in cases of qualified rules as well as unqualified ones. Tweak rules
test to avoid cluttering output with dummy SELECT results. Update
documentation to match code.
Peter Eisentraut
Tatsuo Ishii
Bruce Momjian
Tom Lane