We include <float.h> in every place that needs isnan(), because MSVC
used to require it. However, since MSVC 2013 that's no longer necessary
(cf. commit cec8394b5c), so we can retire the inclusion to a
version-specific stanza in win32_port.h, where it doesn't need to
pollute random .c files. The header is of course still needed in a few
places for other reasons.
I (Álvaro) removed float.h from a few more files than in Emre's original
patch. This doesn't break the build in my system, but we'll see what
the buildfarm has to say about it all.
Author: Emre Hasegeli
Discussion: https://postgr.es/m/CAE2gYzyc0+5uG+Cd9-BSL7NKC8LSHLNg1Aq2=8ubjnUwut4_iw@mail.gmail.com
Values greater than IV_MAX were incorrectly converted to SQL,
for instance ~0 would become -1 rather than 18446744073709551615
(on a 64-bit machine).
Dagfinn Ilmari Mannsåker, adjusted a bit by me
Discussion: https://postgr.es/m/d8jtvskjzzs.fsf@dalvik.ping.uio.no
Per buildfarm, the output from Data::Dumper for an IEEE infinity
is platform-dependent (e.g. "inf" vs "Inf"). Just skip that one
test case in the plperlu test; testing it on the plperl side is
coverage enough. Fixes issue in commit 1731e3741.
We want, say, 2 to be transformed as 2, not \\2 which is what the
original coding produced. Perl's standard seems to be to add an RV
wrapper only for hash and array SVs, so do it like that.
This was missed originally because the test cases only checked what came
out of a round trip back to SQL, and the strip-all-dereferences loop at
the top of SV_to_JsonbValue hides the extra refs from view. As a better
test, print the Perl value with Data::Dumper, like the hstore_plperlu
tests do. While we can't do that in the plperl test, only plperlu,
that should be good enough because this code is the same for both PLs.
But also add a simplistic test for extra REFs, which we can do in both.
That strip-all-dereferences behavior is now a bit dubious; it's unlike
what happens for other Perl-to-SQL conversions. However, the best
thing to do seems to be to leave it alone and make the other conversions
act similarly. That will be done separately.
Dagfinn Ilmari Mannsåker, adjusted a bit by me
Discussion: https://postgr.es/m/d8jlgbq66t9.fsf@dalvik.ping.uio.no
It turns out that old Perl versions (before about 5.10) don't have any
very reliable way to generate Inf or NaN numeric values. Getting around
that would require way more work than is really justified to test the
code involved, so let's just drop these new test cases.
Discussion: https://postgr.es/m/28585.1525131438@sss.pgh.pa.us
jsonb uses numeric internally, and numeric can store NaN, but that is
not allowed by jsonb on input, so we shouldn't store it. Also prevent
infinity to get a consistent error message. (numeric input would reject
infinity anyway.)
Reported-by: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
In commit 331b2369c I added a test to see what jsonb_plperl would do
with a qr{} result. Turns out the answer is Perl version dependent.
That fact doesn't bother me particularly, but coping with multiple
result possibilities is way more work than this test seems worth.
So remove it again.
Discussion: https://postgr.es/m/E1f3MMJ-0006bf-B0@gemulon.postgresql.org
Testing SvTYPE() directly is more fraught with problems than one might
think, because depending on context Perl might be storing a scalar value
in one of several forms, eg both numeric and string values. This resulted
in Perl-version-dependent buildfarm test failures. Instead use the SvTYPE
test only to distinguish non-scalar cases (AV, HV, NULL). Disambiguate
scalars by testing SvIOK, SvNOK, then SvPOK. This creates a preference
order for how we will resolve cases where the value is available in more
than one form, which seems fine to me.
Furthermore, because we're now dealing directly with a "double" value
in the SvNOK case, we can get rid of an inadequate and unportable
string-comparison test for infinities, and use isinf() instead.
(We do need some additional #include and "-lm" infrastructure to use
that in a contrib module, per prior experiences.)
In passing, prevent the regression test results from depending on DROP
CASCADE order; I've not seen that malfunction, but it's trouble waiting
to happen.
Discussion: https://postgr.es/m/E1f3MMJ-0006bf-B0@gemulon.postgresql.org
We were being careless in some places about the order of -L switches in
link command lines, such that -L switches referring to external directories
could come before those referring to directories within the build tree.
This made it possible to accidentally link a system-supplied library, for
example /usr/lib/libpq.so, in place of the one built in the build tree.
Hilarity ensued, the more so the older the system-supplied library is.
To fix, break LDFLAGS into two parts, a sub-variable LDFLAGS_INTERNAL
and the main LDFLAGS variable, both of which are "recursively expanded"
so that they can be incrementally adjusted by different makefiles.
Establish a policy that -L switches for directories in the build tree
must always be added to LDFLAGS_INTERNAL, while -L switches for external
directories must always be added to LDFLAGS. This is sufficient to
ensure a safe search order. For simplicity, we typically also put -l
switches for the respective libraries into those same variables.
(Traditional make usage would have us put -l switches into LIBS, but
cleaning that up is a project for another day, as there's no clear
need for it.)
This turns out to also require separating SHLIB_LINK into two variables,
SHLIB_LINK and SHLIB_LINK_INTERNAL, with a similar rule about which
switches go into which variable. And likewise for PG_LIBS.
Although this change might appear to affect external users of pgxs.mk,
I think it doesn't; they shouldn't have any need to touch the _INTERNAL
variables.
In passing, tweak src/common/Makefile so that the value of CPPFLAGS
recorded in pg_config lacks "-DFRONTEND" and the recorded value of
LDFLAGS lacks "-L../../../src/common". Both of those things are
mistakes, apparently introduced during prior code rearrangements,
as old versions of pg_config don't print them. In general we don't
want anything that's specific to the src/common subdirectory to
appear in those outputs.
This is certainly a bug fix, but in view of the lack of field
complaints, I'm unsure whether it's worth the risk of back-patching.
In any case it seems wise to see what the buildfarm makes of it first.
Discussion: https://postgr.es/m/25214.1522604295@sss.pgh.pa.us
Some compilers are evidently pickier than others about whether Perl's
I32 typedef should be considered equivalent to int. Dodge the problem
by using a separate variable; the prior coding was a bit confusing anyway.
Per buildfarm. Note this does nothing to fix the test failures due to
SV_to_JsonbValue not covering enough variable types.
Add a new contrib module jsonb_plperl that provides a transform between
jsonb and PL/Perl. jsonb values are converted to appropriate Perl types
such as arrays and hashes, and vice versa.
Author: Anthony Bykov <a.bykov@postgrespro.ru>
Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Reviewed-by: Aleksander Alekseev <a.alekseev@postgrespro.ru>
Reviewed-by: Nikita Glukhov <n.gluhov@postgrespro.ru>
Alvaro Herrera
Tom Lane
Peter Eisentraut