Re: BUG #16223: Performance regression between 11.6 and 12.1 in anSQL query with a recursive CTE based on function

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От Kieran McCusker
Тема Re: BUG #16223: Performance regression between 11.6 and 12.1 in anSQL query with a recursive CTE based on function
Дата
Msg-id CAGgUQ6HyRs5Yk2haPmCPEP+bOunFQxyqu_v0R60W-YNNTvje3w@mail.gmail.com
обсуждение исходный текст
Ответ на Re: BUG #16223: Performance regression between 11.6 and 12.1 in anSQL query with a recursive CTE based on function  (Christian Schwaderer <schwaderer@ivocotec.de>)
Ответы Re: BUG #16223: Performance regression between 11.6 and 12.1 in anSQL query with a recursive CTE based on function  (Andres Freund <andres@anarazel.de>)
Список pgsql-bugs
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Hi Christian

I've just checked you query. The slowdown is due to JIT.

With JIT enabled:

CTE Scan on "somePeriods" od  (cost=10.25..17494052.75 rows=1000 width=16) (actual time=724.235..724.235 rows=1 loops=1)
  CTE somePeriods
    ->  Function Scan on my_test_function f  (cost=0.25..10.25 rows=1000 width=12) (actual time=0.293..0.294 rows=1 loops=1)
  SubPlan 3
    ->  Aggregate  (cost=17494.01..17494.02 rows=1 width=4) (actual time=0.135..0.136 rows=1 loops=1)
          CTE prep
            ->  Recursive Union  (cost=0.00..16243.80 rows=55565 width=8) (actual time=0.013..0.020 rows=1 loops=1)
                  ->  CTE Scan on "somePeriods"  (cost=0.00..22.50 rows=5 width=8) (actual time=0.009..0.010 rows=1 loops=1)
                        Filter: (id = od.id)
                  ->  Nested Loop  (cost=0.00..1511.00 rows=5556 width=8) (actual time=0.005..0.006 rows=0 loops=1)
                        Join Filter: (("somePeriods_1"."startDate" <= (prep."endDateParam" + '1 day'::interval)) AND ((prep."endDateParam" + '1 day'::interval) <= "somePeriods_1"."endDate"))
                        Rows Removed by Join Filter: 1
                        ->  WorkTable Scan on prep  (cost=0.00..1.00 rows=50 width=4) (actual time=0.001..0.001 rows=1 loops=1)
                        ->  CTE Scan on "somePeriods" "somePeriods_1"  (cost=0.00..20.00 rows=1000 width=8) (actual time=0.000..0.000 rows=1 loops=1)
          ->  CTE Scan on prep prep_1  (cost=0.00..1111.30 rows=55565 width=4) (actual time=0.122..0.130 rows=1 loops=1)
Planning Time: 0.668 ms
JIT:
  Functions: 18
  Options: Inlining true, Optimization true, Expressions true, Deforming true
  Timing: Generation 8.586 ms, Inlining 17.901 ms, Optimization 514.256 ms, Emission 191.174 ms, Total 731.917 ms
Execution Time: 733.276 ms

With JIT disabled (SET session jit_above_cost = -1):

CTE Scan on "somePeriods" od  (cost=10.25..17494052.75 rows=1000 width=16) (actual time=0.333..0.333 rows=1 loops=1)
  CTE somePeriods
    ->  Function Scan on my_test_function f  (cost=0.25..10.25 rows=1000 width=12) (actual time=0.124..0.125 rows=1 loops=1)
  SubPlan 3
    ->  Aggregate  (cost=17494.01..17494.02 rows=1 width=4) (actual time=0.196..0.197 rows=1 loops=1)
          CTE prep
            ->  Recursive Union  (cost=0.00..16243.80 rows=55565 width=8) (actual time=0.009..0.022 rows=1 loops=1)
                  ->  CTE Scan on "somePeriods"  (cost=0.00..22.50 rows=5 width=8) (actual time=0.005..0.006 rows=1 loops=1)
                        Filter: (id = od.id)
                  ->  Nested Loop  (cost=0.00..1511.00 rows=5556 width=8) (actual time=0.010..0.011 rows=0 loops=1)
                        Join Filter: (("somePeriods_1"."startDate" <= (prep."endDateParam" + '1 day'::interval)) AND ((prep."endDateParam" + '1 day'::interval) <= "somePeriods_1"."endDate"))
                        Rows Removed by Join Filter: 1
                        ->  WorkTable Scan on prep  (cost=0.00..1.00 rows=50 width=4) (actual time=0.001..0.002 rows=1 loops=1)
                        ->  CTE Scan on "somePeriods" "somePeriods_1"  (cost=0.00..20.00 rows=1000 width=8) (actual time=0.001..0.001 rows=1 loops=1)
          ->  CTE Scan on prep prep_1  (cost=0.00..1111.30 rows=55565 width=4) (actual time=0.175..0.189 rows=1 loops=1)
Planning Time: 0.473 ms
Execution Time: 0.660 ms

And with JIT disabled (SET session jit_above_cost = -1) and the CTE materialized:

CTE Scan on "somePeriods" od  (cost=10.25..17494052.75 rows=1000 width=16) (actual time=0.239..0.239 rows=1 loops=1)
  CTE somePeriods
    ->  Function Scan on my_test_function f  (cost=0.25..10.25 rows=1000 width=12) (actual time=0.111..0.112 rows=1 loops=1)
  SubPlan 3
    ->  Aggregate  (cost=17494.01..17494.02 rows=1 width=4) (actual time=0.118..0.118 rows=1 loops=1)
          CTE prep
            ->  Recursive Union  (cost=0.00..16243.80 rows=55565 width=8) (actual time=0.005..0.012 rows=1 loops=1)
                  ->  CTE Scan on "somePeriods"  (cost=0.00..22.50 rows=5 width=8) (actual time=0.003..0.003 rows=1 loops=1)
                        Filter: (id = od.id)
                  ->  Nested Loop  (cost=0.00..1511.00 rows=5556 width=8) (actual time=0.006..0.006 rows=0 loops=1)
                        Join Filter: (("somePeriods_1"."startDate" <= (prep."endDateParam" + '1 day'::interval)) AND ((prep."endDateParam" + '1 day'::interval) <= "somePeriods_1"."endDate"))
                        Rows Removed by Join Filter: 1
                        ->  WorkTable Scan on prep  (cost=0.00..1.00 rows=50 width=4) (actual time=0.001..0.001 rows=1 loops=1)
                        ->  CTE Scan on "somePeriods" "somePeriods_1"  (cost=0.00..20.00 rows=1000 width=8) (actual time=0.000..0.000 rows=1 loops=1)
          ->  CTE Scan on prep prep_1  (cost=0.00..1111.30 rows=55565 width=4) (actual time=0.106..0.113 rows=1 loops=1)
Planning Time: 0.295 ms
Execution Time: 0.423 ms

Cheers

Kieran McCusker


On Wed, 29 Jan 2020 at 13:49, Christian Schwaderer <schwaderer@ivocotec.de> wrote:

On 27.01.20 16:31, Tom Lane wrote:
> Christian Schwaderer <schwaderer@ivocotec.de> writes:
>> I only tested on those virtual environments mentioned (Virtual Box and
>> Docker) as they resemble my real life scenarios. Environments were
>> equivalent except for the PostgreSQL version. As you can see, I used
>> Docker images from the official PostgreSQL docker repo (
>> https://hub.docker.com/_/postgres ) and did nothing with them except
>> running the query.
>> Thanks for testing without virtualization! So, it seems we can narrow
>> down the issue to virtual environments. Strange enough, if you ask me.
> Or it could be the specific builds you used.  Some of our packagers
> tend to enable debug options on early releases of a given major version;
> if that was the case for the v12 build you tested, it could account for
> at least some of the difference.  Comparing pg_config output from the
> two installations (particularly the configure options) would be
> informative.
>
> Another thing that could be relevant is JIT, which is on by default
> in v12 (if enabled in configuration), and which is still suffering
> a lot of teething pains performance-wise.  I'd check if that's
> on and try disabling it if so.
>
>                       regards, tom lane
>

Sorry for replying so late, I was busy with something else.

As I already pointed out, I'm able to reproduce this issue on images
from the official PostgreSQL docker repo on two different versions (12.0
and 12.1). I did not change anything in the config, just pulling the
images, executing the query and that's it. So, if actually there is
debugging code in both those builds or the default config is somewhat
problematic for this query, I think, this would be actually an issue, a
minor one of course.

Anyway: Here are the details of versions and pg_config

I) Postgres 12.1 on a virtual Ubuntu 18.04 running in VirtualBox
Output of SELECT version();
PostgreSQL 12.1 (Ubuntu 12.1-1.pgdg18.04+1) on x86_64-pc-linux-gnu,
compiled by gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0, 64-bit

Output of SELECT pg_config();
   (BINDIR,/usr/lib/postgresql/12/bin)
  (DOCDIR,/usr/share/doc/postgresql-doc-12)
  (HTMLDIR,/usr/share/doc/postgresql-doc-12)
  (INCLUDEDIR,/usr/include/postgresql)
  (PKGINCLUDEDIR,/usr/include/postgresql)
  (INCLUDEDIR-SERVER,/usr/include/postgresql/12/server)
  (LIBDIR,/usr/lib/x86_64-linux-gnu)
  (PKGLIBDIR,/usr/lib/postgresql/12/lib)
  (LOCALEDIR,/usr/share/locale)
  (MANDIR,/usr/share/postgresql/12/man)
  (SHAREDIR,/usr/share/postgresql/12)
  (SYSCONFDIR,/etc/postgresql-common)
  (PGXS,/usr/lib/postgresql/12/lib/pgxs/src/makefiles/pgxs.mk)
  (CONFIGURE,"'--build=x86_64-linux-gnu' '--prefix=/usr'
'--includedir=/usr/include' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--sysconfdir=/etc' '--localstatedir=/var'
'--disable-silent-rules' '--libdir=/usr/lib/x86_64-linux-gnu'
'--libexecdir=/usr/lib/x86_64-linux-gnu' '--disable-maintainer-mode'
'--disable-dependency-tracking' '--with-icu' '--with-tcl' '--with-perl'
'--with-python' '--with-pam' '--with-openssl' '--with-libxml'
'--with-libxslt' 'PYTHON=/usr/bin/python3'
'--mandir=/usr/share/postgresql/12/man'
'--docdir=/usr/share/doc/postgresql-doc-12'
'--sysconfdir=/etc/postgresql-common' '--datarootdir=/usr/share/'
'--datadir=/usr/share/postgresql/12'
'--bindir=/usr/lib/postgresql/12/bin'
'--libdir=/usr/lib/x86_64-linux-gnu/'
'--libexecdir=/usr/lib/postgresql/'
'--includedir=/usr/include/postgresql/' '--with-extra-version= (Ubuntu
12.1-1.pgdg18.04+1)' '--enable-nls' '--enable-integer-datetimes'
'--enable-thread-safety' '--enable-tap-tests' '--enable-debug'
'--enable-dtrace' '--disable-rpath' '--with-uuid=e2fs' '--with-gnu-ld'
'--with-pgport=5432' '--with-system-tzdata=/usr/share/zoneinfo'
'--with-llvm' 'LLVM_CONFIG=/usr/bin/llvm-config-6.0'
'CLANG=/usr/bin/clang-6.0' '--with-systemd' '--with-selinux'
'MKDIR_P=/bin/mkdir -p' 'TAR=/bin/tar' 'CFLAGS=-g -O2
-fstack-protector-strong -Wformat -Werror=format-security
-fno-omit-frame-pointer' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro
-Wl,-z,now' '--with-gssapi' '--with-ldap'
'--with-includes=/usr/include/mit-krb5' '--with-libs=/usr/lib/mit-krb5'
'--with-libs=/usr/lib/x86_64-linux-gnu/mit-krb5'
'build_alias=x86_64-linux-gnu' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fstack-protector-strong -Wformat
-Werror=format-security'")
  (CC,gcc)
  (CPPFLAGS,"-Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE
-I/usr/include/libxml2 -I/usr/include/mit-krb5")
  (CFLAGS,"-Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Werror=vla -Wendif-labels
-Wmissing-format-attribute -Wformat-security -fno-strict-aliasing
-fwrapv -fexcess-precision=standard -Wno-format-truncation -g -g -O2
-fstack-protector-strong -Wformat -Werror=format-security
-fno-omit-frame-pointer")
  (CFLAGS_SL,-fPIC)
  (LDFLAGS,"-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now
-L/usr/lib/llvm-6.0/lib -L/usr/lib/x86_64-linux-gnu/mit-krb5
-Wl,--as-needed")
  (LDFLAGS_EX,"")
  (LDFLAGS_SL,"")
  (LIBS,"-lpgcommon -lpgport -lpthread -lselinux -lxslt -lxml2 -lpam
-lssl -lcrypto -lgssapi_krb5 -lz -ledit -lrt -lcrypt -ldl -lm ")
  (VERSION,"PostgreSQL 12.1 (Ubuntu 12.1-1.pgdg18.04+1)")


II) Postgres 12.1 from official PostgreSQL docker repo

Output of SELECT version();
PostgreSQL 12.1 (Debian 12.1-1.pgdg100+1) on x86_64-pc-linux-gnu,
compiled by gcc (Debian 8.3.0-6) 8.3.0, 64-bit

Output of SELECT pg_config();
  (BINDIR,/usr/lib/postgresql/12/bin)
  (DOCDIR,/usr/share/doc/postgresql-doc-12)
  (HTMLDIR,/usr/share/doc/postgresql-doc-12)
  (INCLUDEDIR,/usr/include/postgresql)
  (PKGINCLUDEDIR,/usr/include/postgresql)
  (INCLUDEDIR-SERVER,/usr/include/postgresql/12/server)
  (LIBDIR,/usr/lib/x86_64-linux-gnu)
  (PKGLIBDIR,/usr/lib/postgresql/12/lib)
  (LOCALEDIR,/usr/share/locale)
  (MANDIR,/usr/share/postgresql/12/man)
  (SHAREDIR,/usr/share/postgresql/12)
  (SYSCONFDIR,/etc/postgresql-common)
  (PGXS,/usr/lib/postgresql/12/lib/pgxs/src/makefiles/pgxs.mk)
  (CONFIGURE,"'--build=x86_64-linux-gnu' '--prefix=/usr'
'--includedir=/usr/include' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--sysconfdir=/etc' '--localstatedir=/var'
'--disable-silent-rules' '--libdir=/usr/lib/x86_64-linux-gnu'
'--libexecdir=/usr/lib/x86_64-linux-gnu' '--disable-maintainer-mode'
'--disable-dependency-tracking' '--with-icu' '--with-tcl' '--with-perl'
'--with-python' '--with-pam' '--with-openssl' '--with-libxml'
'--with-libxslt' 'PYTHON=/usr/bin/python3'
'--mandir=/usr/share/postgresql/12/man'
'--docdir=/usr/share/doc/postgresql-doc-12'
'--sysconfdir=/etc/postgresql-common' '--datarootdir=/usr/share/'
'--datadir=/usr/share/postgresql/12'
'--bindir=/usr/lib/postgresql/12/bin'
'--libdir=/usr/lib/x86_64-linux-gnu/'
'--libexecdir=/usr/lib/postgresql/'
'--includedir=/usr/include/postgresql/' '--with-extra-version= (Debian
12.1-1.pgdg100+1)' '--enable-nls' '--enable-integer-datetimes'
'--enable-thread-safety' '--enable-tap-tests' '--enable-debug'
'--enable-dtrace' '--disable-rpath' '--with-uuid=e2fs' '--with-gnu-ld'
'--with-pgport=5432' '--with-system-tzdata=/usr/share/zoneinfo'
'--with-llvm' 'LLVM_CONFIG=/usr/bin/llvm-config-7'
'CLANG=/usr/bin/clang-7' '--with-systemd' '--with-selinux'
'MKDIR_P=/bin/mkdir -p' 'TAR=/bin/tar' 'CFLAGS=-g -O2
-fstack-protector-strong -Wformat -Werror=format-security
-fno-omit-frame-pointer' 'LDFLAGS=-Wl,-z,relro -Wl,-z,now'
'--with-gssapi' '--with-ldap' '--with-includes=/usr/include/mit-krb5'
'--with-libs=/usr/lib/mit-krb5'
'--with-libs=/usr/lib/x86_64-linux-gnu/mit-krb5'
'build_alias=x86_64-linux-gnu' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fstack-protector-strong -Wformat
-Werror=format-security'")
  (CC,gcc)
  (CPPFLAGS,"-Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE
-I/usr/include/libxml2 -I/usr/include/mit-krb5")
  (CFLAGS,"-Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Werror=vla -Wendif-labels
-Wmissing-format-attribute -Wformat-security -fno-strict-aliasing
-fwrapv -fexcess-precision=standard -Wno-format-truncation
-Wno-stringop-truncation -g -g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -fno-omit-frame-pointer")
  (CFLAGS_SL,-fPIC)
  (LDFLAGS,"-Wl,-z,relro -Wl,-z,now -L/usr/lib/llvm-7/lib
-L/usr/lib/x86_64-linux-gnu/mit-krb5 -Wl,--as-needed")
  (LDFLAGS_EX,"")
  (LDFLAGS_SL,"")
  (LIBS,"-lpgcommon -lpgport -lpthread -lselinux -lxslt -lxml2 -lpam
-lssl -lcrypto -lgssapi_krb5 -lz -ledit -lrt -lcrypt -ldl -lm ")
  (VERSION,"PostgreSQL 12.1 (Debian 12.1-1.pgdg100+1)")


III) Postgres 12.0 from official PostgreSQL docker repo
Output of SELECT version();
PostgreSQL 12.0 (Debian 12.0-2.pgdg100+1) on x86_64-pc-linux-gnu,
compiled by gcc (Debian 8.3.0-6) 8.3.0, 64-bit

Output of SELECT pg_config();
   (BINDIR,/usr/lib/postgresql/12/bin)
  (DOCDIR,/usr/share/doc/postgresql-doc-12)
  (HTMLDIR,/usr/share/doc/postgresql-doc-12)
  (INCLUDEDIR,/usr/include/postgresql)
  (PKGINCLUDEDIR,/usr/include/postgresql)
  (INCLUDEDIR-SERVER,/usr/include/postgresql/12/server)
  (LIBDIR,/usr/lib/x86_64-linux-gnu)
  (PKGLIBDIR,/usr/lib/postgresql/12/lib)
  (LOCALEDIR,/usr/share/locale)
  (MANDIR,/usr/share/postgresql/12/man)
  (SHAREDIR,/usr/share/postgresql/12)
  (SYSCONFDIR,/etc/postgresql-common)
  (PGXS,/usr/lib/postgresql/12/lib/pgxs/src/makefiles/pgxs.mk)
  (CONFIGURE,"'--build=x86_64-linux-gnu' '--prefix=/usr'
'--includedir=/usr/include' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--sysconfdir=/etc' '--localstatedir=/var'
'--disable-silent-rules' '--libdir=/usr/lib/x86_64-linux-gnu'
'--libexecdir=/usr/lib/x86_64-linux-gnu' '--disable-maintainer-mode'
'--disable-dependency-tracking' '--with-icu' '--with-tcl' '--with-perl'
'--with-python' '--with-pam' '--with-openssl' '--with-libxml'
'--with-libxslt' 'PYTHON=/usr/bin/python3'
'--mandir=/usr/share/postgresql/12/man'
'--docdir=/usr/share/doc/postgresql-doc-12'
'--sysconfdir=/etc/postgresql-common' '--datarootdir=/usr/share/'
'--datadir=/usr/share/postgresql/12'
'--bindir=/usr/lib/postgresql/12/bin'
'--libdir=/usr/lib/x86_64-linux-gnu/'
'--libexecdir=/usr/lib/postgresql/'
'--includedir=/usr/include/postgresql/' '--with-extra-version= (Debian
12.0-2.pgdg100+1)' '--enable-nls' '--enable-integer-datetimes'
'--enable-thread-safety' '--enable-tap-tests' '--enable-debug'
'--enable-dtrace' '--disable-rpath' '--with-uuid=e2fs' '--with-gnu-ld'
'--with-pgport=5432' '--with-system-tzdata=/usr/share/zoneinfo'
'--with-llvm' 'LLVM_CONFIG=/usr/bin/llvm-config-7'
'CLANG=/usr/bin/clang-7' '--with-systemd' '--with-selinux'
'MKDIR_P=/bin/mkdir -p' 'TAR=/bin/tar' 'CFLAGS=-g -O2
-fstack-protector-strong -Wformat -Werror=format-security
-fno-omit-frame-pointer' 'LDFLAGS=-Wl,-z,relro -Wl,-z,now'
'--with-gssapi' '--with-ldap' '--with-includes=/usr/include/mit-krb5'
'--with-libs=/usr/lib/mit-krb5'
'--with-libs=/usr/lib/x86_64-linux-gnu/mit-krb5'
'build_alias=x86_64-linux-gnu' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fstack-protector-strong -Wformat
-Werror=format-security'")
  (CC,gcc)
  (CPPFLAGS,"-Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE
-I/usr/include/libxml2 -I/usr/include/mit-krb5")
  (CFLAGS,"-Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Werror=vla -Wendif-labels
-Wmissing-format-attribute -Wformat-security -fno-strict-aliasing
-fwrapv -fexcess-precision=standard -Wno-format-truncation
-Wno-stringop-truncation -g -g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -fno-omit-frame-pointer")
  (CFLAGS_SL,-fPIC)
  (LDFLAGS,"-Wl,-z,relro -Wl,-z,now -L/usr/lib/llvm-7/lib
-L/usr/lib/x86_64-linux-gnu/mit-krb5 -Wl,--as-needed")
  (LDFLAGS_EX,"")
  (LDFLAGS_SL,"")
  (LIBS,"-lpgcommon -lpgport -lpthread -lselinux -lxslt -lxml2 -lpam
-lssl -lcrypto -lgssapi_krb5 -lz -ledit -lrt -lcrypt -ldl -lm ")
  (VERSION,"PostgreSQL 12.0 (Debian 12.0-2.pgdg100+1)")


  IV) For comparison: Output of Postgres 11.6 where everything seems
fine (also official PostgreSQL docker repo):
  Output of SELECT version();
  PostgreSQL 11.6 (Debian 11.6-1.pgdg90+1) on x86_64-pc-linux-gnu,
compiled by gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, 64-bit

  Output of SELECT pg_config();
   (BINDIR,/usr/lib/postgresql/11/bin)
  (DOCDIR,/usr/share/doc/postgresql-doc-11)
  (HTMLDIR,/usr/share/doc/postgresql-doc-11)
  (INCLUDEDIR,/usr/include/postgresql)
  (PKGINCLUDEDIR,/usr/include/postgresql)
  (INCLUDEDIR-SERVER,/usr/include/postgresql/11/server)
  (LIBDIR,/usr/lib/x86_64-linux-gnu)
  (PKGLIBDIR,/usr/lib/postgresql/11/lib)
  (LOCALEDIR,/usr/share/locale)
  (MANDIR,/usr/share/postgresql/11/man)
  (SHAREDIR,/usr/share/postgresql/11)
  (SYSCONFDIR,/etc/postgresql-common)
  (PGXS,/usr/lib/postgresql/11/lib/pgxs/src/makefiles/pgxs.mk)
  (CONFIGURE,"'--build=x86_64-linux-gnu' '--prefix=/usr'
'--includedir=/usr/include' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--sysconfdir=/etc' '--localstatedir=/var'
'--disable-silent-rules' '--libdir=/usr/lib/x86_64-linux-gnu'
'--libexecdir=/usr/lib/x86_64-linux-gnu' '--disable-maintainer-mode'
'--disable-dependency-tracking' '--with-icu' '--with-tcl' '--with-perl'
'--with-python' '--with-pam' '--with-openssl' '--with-libxml'
'--with-libxslt' 'PYTHON=/usr/bin/python3'
'--mandir=/usr/share/postgresql/11/man'
'--docdir=/usr/share/doc/postgresql-doc-11'
'--sysconfdir=/etc/postgresql-common' '--datarootdir=/usr/share/'
'--datadir=/usr/share/postgresql/11'
'--bindir=/usr/lib/postgresql/11/bin'
'--libdir=/usr/lib/x86_64-linux-gnu/'
'--libexecdir=/usr/lib/postgresql/'
'--includedir=/usr/include/postgresql/' '--with-extra-version= (Debian
11.6-1.pgdg90+1)' '--enable-nls' '--enable-integer-datetimes'
'--enable-thread-safety' '--enable-tap-tests' '--enable-debug'
'--enable-dtrace' '--disable-rpath' '--with-uuid=e2fs' '--with-gnu-ld'
'--with-pgport=5432' '--with-system-tzdata=/usr/share/zoneinfo'
'--with-llvm' 'LLVM_CONFIG=/usr/bin/llvm-config-6.0'
'CLANG=/usr/bin/clang-6.0' '--with-systemd' '--with-selinux'
'MKDIR_P=/bin/mkdir -p' 'TAR=/bin/tar' 'CFLAGS=-g -O2
-fstack-protector-strong -Wformat -Werror=format-security
-fno-omit-frame-pointer' 'LDFLAGS=-Wl,-z,relro -Wl,-z,now'
'--with-gssapi' '--with-ldap' '--with-includes=/usr/include/mit-krb5'
'--with-libs=/usr/lib/mit-krb5'
'--with-libs=/usr/lib/x86_64-linux-gnu/mit-krb5'
'build_alias=x86_64-linux-gnu' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' 'CXXFLAGS=-g -O2 -fstack-protector-strong -Wformat
-Werror=format-security'")
  (CC,gcc)
  (CPPFLAGS,"-Wdate-time -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE
-I/usr/include/libxml2 -I/usr/include/mit-krb5")
  (CFLAGS,"-Wall -Wmissing-prototypes -Wpointer-arith
-Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute
-Wformat-security -fno-strict-aliasing -fwrapv
-fexcess-precision=standard -g -g -O2 -fstack-protector-strong -Wformat
-Werror=format-security -fno-omit-frame-pointer")
  (CFLAGS_SL,-fPIC)
  (LDFLAGS,"-Wl,-z,relro -Wl,-z,now -L/usr/lib/llvm-6.0/lib
-L/usr/lib/x86_64-linux-gnu/mit-krb5 -Wl,--as-needed")
  (LDFLAGS_EX,"")
  (LDFLAGS_SL,"")
  (LIBS,"-lpgcommon -lpgport -lpthread -lselinux -lxslt -lxml2 -lpam
-lssl -lcrypto -lgssapi_krb5 -lz -ledit -lrt -lcrypt -ldl -lm ")
  (VERSION,"PostgreSQL 11.6 (Debian 11.6-1.pgdg90+1)"



Hope this helps.

Best,
Christian



--
Christian Schwaderer, Software-Entwickler/software developer
------------------------------------------------------------
ivocoTec GmbH
Entwicklungsabteilung/IT department

Postplatz 3
D-16761 Hennigsdorf

https://ivocotec.de
Telefon/phone +49 (0)3302 20 63 230




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