"pg_dump -Ft -f filename ..." got broken by my recent commit
4317e0246c, which I fear I only tested
in the output-to-stdout variant.
Report and fix by Muhammad Asif Naeem.
The initial implementation of pg_dump's --section option supposed that the
existing --schema-only and --data-only options could be made equivalent to
--section settings. This is wrong, though, due to dubious but long since
set-in-stone decisions about where to dump SEQUENCE SET items, as seen in
bug report from Martin Pitt. (And I'm not totally convinced there weren't
other bugs, either.) Undo that coupling and instead drive --section
filtering off current-section state tracked as we scan through the TOC
list to call _tocEntryRequired().
To make sure those decisions don't shift around and hopefully save a few
cycles, run _tocEntryRequired() only once per TOC entry and save the result
in a new TOC field. This required minor rejiggering of ACL handling but
also allows a far cleaner implementation of inhibit_data_for_failed_table.
Also, to ensure that pg_dump and pg_restore have the same behavior with
respect to the --section switches, add _tocEntryRequired() filtering to
WriteToc() and WriteDataChunks(), rather than trying to implement section
filtering in an entirely orthogonal way in dumpDumpableObject(). This
required adjusting the handling of the special ENCODING and STDSTRINGS
items, but they were pretty weird before anyway.
Minor other code review for the patch, too.
The old code was using exit_horribly or die_horribly other depending on
whether it had an ArchiveHandle on which to close the connection or not;
but there were places that were passing a NULL ArchiveHandle to
die_horribly, and other places that used exit_horribly while having an
AH available. So there wasn't all that much consistency.
Improve the situation by keeping only one of the routines, and instead
of having to pass the AH down from the caller, arrange for it to be
present for an on_exit_nicely callback to operate on.
Author: Joachim Wieland
Some tweaks by me
Per a suggestion from Robert Haas, in the ongoing "parallel pg_dump"
saga.
gzFile is already a pointer, so code like
gzFile *handle = gzopen(...)
is wrong.
This used to pass silently because gzFile used to be defined as void*,
and you can assign a void* to a void**. But somewhere between zlib
versions 1.2.3.4 and 1.2.6, the definition of gzFile was changed to
struct gzFile_s *, and with that new definition this usage causes
compiler warnings.
So remove all those extra pointer decorations.
There is a related issue in pg_backup_archiver.h, where
FILE *FH; /* General purpose file handle */
is used throughout pg_dump as sometimes a real FILE* and sometimes a
gzFile handle, which also causes warnings now. This is not yet fixed
here, because it might need more code restructuring.
This addresses only those cases that are easy to fix by adding or
moving a const qualifier or removing an unnecessary cast. There are
many more complicated cases remaining.
Add __attribute__ decorations for printf format checking to the places that
were missing them. Fix the resulting warnings. Add
-Wmissing-format-attribute to the standard set of warnings for GCC, so these
don't happen again.
The warning fixes here are relatively harmless. The one serious problem
discovered by this was already committed earlier in
cf15fb5cab.
Per C standard, these are semantically the same thing; but saying NULL
when you mean NULL is good for readability.
Marti Raudsepp, per results of INRIA's Coccinelle.
"dumping data out of order is not supported" to "restoring data out of order
is not supported", because you get that error during pg_restore not pg_dump.
Also fix some comments that didn't look so good after being pgindented as
perhaps they did originally.
we're not going to support that anymore.
I did keep the 64-bit-CRC-with-32-bit-arithmetic code, since it has a
performance excuse to live. It's a bit moot since that's all ifdef'd
out, of course.
In the backend, I changed only a handful of exemplary or important-looking
instances to make use of the plural support; there is probably more work
there. For the rest of the source, this should cover all relevant cases.
post-data step is run in a separate worker child (a thread on Windows, a child
process elsewhere) up to the concurrent number specified by the new pg_restore
command-line --multi-thread | -m switch.
Andrew Dunstan, with some editing by Tom Lane.
read from the temp file didn't match the file length reported by ftello(),
the wrong variable's value was printed, and so the message made no sense.
Clean up a couple other coding infelicities while at it.
(blobs) with comments, per bug #2727 from Konstantin Pelepelin.
Mea culpa for not having tested this case.
Back-patch to 8.1; prior branches don't dump blob comments at all.
o remove many WIN32_CLIENT_ONLY defines
o add WIN32_ONLY_COMPILER define
o add 3rd argument to open() for portability
o add include/port/win32_msvc directory for
system includes
Magnus Hagander
(1) The code doesn't initialize `sum', so the initial "does the checksum
match?" test is wrong.
(2) The loop that is intended to check for a "null block" just checks
the first byte of the tar block 512 times, rather than each of the
512 bytes one time (!), which I'm guessing was the intent.
It was only through sheer luck that this worked in the first place.
Per Coverity static analysis performed by EnterpriseDB.
/*
* Some compilers with throw a warning knowing this test can never be
* true because off_t can't exceed the compared maximum.
*/
if (th->fileLen > MAX_TAR_MEMBER_FILELEN)
die_horribly(AH, modulename, "archive member too large for tar format\n");
conversion of basic ASCII letters. Remove all uses of strcasecmp and
strncasecmp in favor of new functions pg_strcasecmp and pg_strncasecmp;
remove most but not all direct uses of toupper and tolower in favor of
pg_toupper and pg_tolower. These functions use the same notions of
case folding already developed for identifier case conversion. I left
the straight locale-based folding in place for situations where we are
just manipulating user data and not trying to match it to built-in
strings --- for example, the SQL upper() function is still locale
dependent. Perhaps this will prove not to be what's wanted, but at
the moment we can initdb and pass regression tests in Turkish locale.
object types, rather than by OID. This should help ensure consistent
dump output from databases that are logically the same but have different
histories, per recent discussion about 'diffing' databases. The patch
is bulky because of renaming of fields, but not very complicated.
Also, do some tweaking to cause BLOB restoration to be done in a better
order, and clean up pg_restore's textual output to exactly match pg_dump.
pg_depend to determine a safe dump order. Defaults and check constraints
can be emitted either as part of a table or domain definition, or
separately if that's needed to break a dependency loop. Lots of old
half-baked code for controlling dump order removed.
Alvaro Herrera