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Add support for explicitly declared statistic objects (CREATE STATISTICS), allowing collection of statistics on more complex combinations that individual table columns. Companion commands DROP STATISTICS and ALTER STATISTICS ... OWNER TO / SET SCHEMA / RENAME are added too. All this DDL has been designed so that more statistic types can be added later on, such as multivariate most-common-values and multivariate histograms between columns of a single table, leaving room for permitting columns on multiple tables, too, as well as expressions. This commit only adds support for collection of n-distinct coefficient on user-specified sets of columns in a single table. This is useful to estimate number of distinct groups in GROUP BY and DISTINCT clauses; estimation errors there can cause over-allocation of memory in hashed aggregates, for instance, so it's a worthwhile problem to solve. A new special pseudo-type pg_ndistinct is used. (num-distinct estimation was deemed sufficiently useful by itself that this is worthwhile even if no further statistic types are added immediately; so much so that another version of essentially the same functionality was submitted by Kyotaro Horiguchi: https://postgr.es/m/20150828.173334.114731693.horiguchi.kyotaro@lab.ntt.co.jp though this commit does not use that code.) Author: Tomas Vondra. Some code rework by Álvaro. Reviewed-by: Dean Rasheed, David Rowley, Kyotaro Horiguchi, Jeff Janes, Ideriha Takeshi Discussion: https://postgr.es/m/543AFA15.4080608@fuzzy.cz https://postgr.es/m/20170320190220.ixlaueanxegqd5gr@alvherre.pgsql
359 lines
12 KiB
Makefile
359 lines
12 KiB
Makefile
#-------------------------------------------------------------------------
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#
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# Makefile for the postgres backend
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#
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# Portions Copyright (c) 1996-2017, PostgreSQL Global Development Group
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# Portions Copyright (c) 1994, Regents of the University of California
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#
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# src/backend/Makefile
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#
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#-------------------------------------------------------------------------
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PGFILEDESC = "PostgreSQL Server"
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# This is a daemon process, which is why it is not labeled as an executable
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#PGAPPICON=win32
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subdir = src/backend
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top_builddir = ../..
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include $(top_builddir)/src/Makefile.global
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SUBDIRS = access bootstrap catalog parser commands executor foreign lib libpq \
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main nodes optimizer port postmaster regex replication rewrite \
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statistics storage tcop tsearch utils $(top_builddir)/src/timezone
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include $(srcdir)/common.mk
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# As of 1/2010:
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# The probes.o file is necessary for dtrace support on Solaris, and on recent
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# versions of systemtap. (Older systemtap releases just produce an empty
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# file, but that's okay.) However, macOS's dtrace doesn't use it and doesn't
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# even recognize the -G option. So, build probes.o except on macOS.
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# This might need adjustment as other platforms add dtrace support.
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ifneq ($(PORTNAME), darwin)
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ifeq ($(enable_dtrace), yes)
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LOCALOBJS += utils/probes.o
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endif
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endif
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OBJS = $(SUBDIROBJS) $(LOCALOBJS) $(top_builddir)/src/port/libpgport_srv.a \
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$(top_builddir)/src/common/libpgcommon_srv.a
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# We put libpgport and libpgcommon into OBJS, so remove it from LIBS; also add
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# libldap
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LIBS := $(filter-out -lpgport -lpgcommon, $(LIBS)) $(LDAP_LIBS_BE)
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# The backend doesn't need everything that's in LIBS, however
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LIBS := $(filter-out -lz -lreadline -ledit -ltermcap -lncurses -lcurses, $(LIBS))
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ifeq ($(with_systemd),yes)
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LIBS += -lsystemd
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endif
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##########################################################################
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all: submake-libpgport submake-schemapg postgres $(POSTGRES_IMP)
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ifneq ($(PORTNAME), cygwin)
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ifneq ($(PORTNAME), win32)
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ifneq ($(PORTNAME), aix)
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postgres: $(OBJS)
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$(CC) $(CFLAGS) $(LDFLAGS) $(LDFLAGS_EX) $(export_dynamic) $(call expand_subsys,$^) $(LIBS) $(ICU_LIBS) -o $@
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endif
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endif
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endif
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ifeq ($(PORTNAME), cygwin)
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postgres: $(OBJS)
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$(CC) $(CFLAGS) $(LDFLAGS) $(LDFLAGS_EX) $(export_dynamic) -Wl,--stack,$(WIN32_STACK_RLIMIT) -Wl,--export-all-symbols -Wl,--out-implib=libpostgres.a $(call expand_subsys,$^) $(LIBS) -o $@
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# There is no correct way to write a rule that generates two files.
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# Rules with two targets don't have that meaning, they are merely
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# shorthand for two otherwise separate rules. To be safe for parallel
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# make, we must chain the dependencies like this. The semicolon is
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# important, otherwise make will choose some built-in rule.
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libpostgres.a: postgres ;
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endif # cygwin
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ifeq ($(PORTNAME), win32)
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LIBS += -lsecur32
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postgres: $(OBJS) $(WIN32RES)
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$(CC) $(CFLAGS) $(LDFLAGS) $(LDFLAGS_EX) -Wl,--stack=$(WIN32_STACK_RLIMIT) -Wl,--export-all-symbols -Wl,--out-implib=libpostgres.a $(call expand_subsys,$(OBJS)) $(WIN32RES) $(LIBS) -o $@$(X)
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libpostgres.a: postgres ;
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endif # win32
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ifeq ($(PORTNAME), aix)
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postgres: $(POSTGRES_IMP)
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$(CC) $(CFLAGS) $(LDFLAGS) $(LDFLAGS_EX) $(call expand_subsys,$(OBJS)) -Wl,-bE:$(top_builddir)/src/backend/$(POSTGRES_IMP) $(LIBS) -Wl,-brtllib -o $@
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$(POSTGRES_IMP): $(OBJS)
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$(LD) $(LDREL) $(LDOUT) SUBSYS.o $(call expand_subsys,$^)
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ifeq ($(host_os), aix3.2.5)
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$(MKLDEXPORT) SUBSYS.o $(bindir)/postgres > $@
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else
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ifneq (,$(findstring aix4.1, $(host_os)))
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$(MKLDEXPORT) SUBSYS.o $(bindir)/postgres > $@
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else
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$(MKLDEXPORT) SUBSYS.o . > $@
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endif
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endif
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@rm -f SUBSYS.o
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endif # aix
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# Update the commonly used headers before building the subdirectories
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$(SUBDIRS:%=%-recursive): | generated-headers
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# src/port needs a convenient way to force just errcodes.h to get built
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submake-errcodes: $(top_builddir)/src/include/utils/errcodes.h
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.PHONY: submake-errcodes
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$(top_builddir)/src/port/libpgport_srv.a: | submake-libpgport
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# The postgres.o target is needed by the rule in Makefile.global that
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# creates the exports file when MAKE_EXPORTS = true.
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postgres.o: $(OBJS)
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$(CC) $(LDREL) $(LDFLAGS) $(LDFLAGS_EX) $(call expand_subsys,$^) $(LIBS) -o $@
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# The following targets are specified in make commands that appear in
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# the make files in our subdirectories. Note that it's important we
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# match the dependencies shown in the subdirectory makefiles!
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parser/gram.h: parser/gram.y
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$(MAKE) -C parser gram.h
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storage/lmgr/lwlocknames.h: storage/lmgr/generate-lwlocknames.pl storage/lmgr/lwlocknames.txt
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$(MAKE) -C storage/lmgr lwlocknames.h
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utils/errcodes.h: utils/generate-errcodes.pl utils/errcodes.txt
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$(MAKE) -C utils errcodes.h
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# see explanation in parser/Makefile
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utils/fmgrprotos.h: utils/fmgroids.h ;
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utils/fmgroids.h: utils/Gen_fmgrtab.pl catalog/Catalog.pm $(top_srcdir)/src/include/catalog/pg_proc.h
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$(MAKE) -C utils $(notdir $@)
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utils/probes.h: utils/probes.d
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$(MAKE) -C utils probes.h
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# run this unconditionally to avoid needing to know its dependencies here:
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catalog/schemapg.h: | submake-schemapg
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submake-schemapg:
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$(MAKE) -C catalog schemapg.h
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.PHONY: submake-schemapg
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# Make symlinks for these headers in the include directory. That way
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# we can cut down on the -I options. Also, a symlink is automatically
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# up to date when we update the base file.
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#
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# The point of the prereqdir incantation in some of the rules below is to
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# force the symlink to use an absolute path rather than a relative path.
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# For headers which are generated by make distprep, the actual header within
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# src/backend will be in the source tree, while the symlink in src/include
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# will be in the build tree, so a simple ../.. reference won't work.
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# For headers generated during regular builds, we prefer a relative symlink.
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.PHONY: generated-headers
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generated-headers: $(top_builddir)/src/include/parser/gram.h $(top_builddir)/src/include/catalog/schemapg.h $(top_builddir)/src/include/storage/lwlocknames.h $(top_builddir)/src/include/utils/errcodes.h $(top_builddir)/src/include/utils/fmgroids.h $(top_builddir)/src/include/utils/fmgrprotos.h $(top_builddir)/src/include/utils/probes.h
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$(top_builddir)/src/include/parser/gram.h: parser/gram.h
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prereqdir=`cd '$(dir $<)' >/dev/null && pwd` && \
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cd '$(dir $@)' && rm -f $(notdir $@) && \
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$(LN_S) "$$prereqdir/$(notdir $<)" .
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$(top_builddir)/src/include/catalog/schemapg.h: catalog/schemapg.h
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prereqdir=`cd '$(dir $<)' >/dev/null && pwd` && \
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cd '$(dir $@)' && rm -f $(notdir $@) && \
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$(LN_S) "$$prereqdir/$(notdir $<)" .
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$(top_builddir)/src/include/storage/lwlocknames.h: storage/lmgr/lwlocknames.h
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prereqdir=`cd '$(dir $<)' >/dev/null && pwd` && \
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cd '$(dir $@)' && rm -f $(notdir $@) && \
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$(LN_S) "$$prereqdir/$(notdir $<)" .
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$(top_builddir)/src/include/utils/errcodes.h: utils/errcodes.h
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prereqdir=`cd '$(dir $<)' >/dev/null && pwd` && \
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cd '$(dir $@)' && rm -f $(notdir $@) && \
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$(LN_S) "$$prereqdir/$(notdir $<)" .
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$(top_builddir)/src/include/utils/fmgroids.h: utils/fmgroids.h
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prereqdir=`cd '$(dir $<)' >/dev/null && pwd` && \
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cd '$(dir $@)' && rm -f $(notdir $@) && \
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$(LN_S) "$$prereqdir/$(notdir $<)" .
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$(top_builddir)/src/include/utils/fmgrprotos.h: utils/fmgrprotos.h
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prereqdir=`cd '$(dir $<)' >/dev/null && pwd` && \
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cd '$(dir $@)' && rm -f $(notdir $@) && \
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$(LN_S) "$$prereqdir/$(notdir $<)" .
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$(top_builddir)/src/include/utils/probes.h: utils/probes.h
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cd '$(dir $@)' && rm -f $(notdir $@) && \
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$(LN_S) "../../../$(subdir)/utils/probes.h" .
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utils/probes.o: utils/probes.d $(SUBDIROBJS)
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$(DTRACE) $(DTRACEFLAGS) -C -G -s $(call expand_subsys,$^) -o $@
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##########################################################################
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# Be sure that these files get removed by the maintainer-clean target
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distprep:
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$(MAKE) -C parser gram.c gram.h scan.c
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$(MAKE) -C bootstrap bootparse.c bootscanner.c
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$(MAKE) -C catalog schemapg.h postgres.bki postgres.description postgres.shdescription
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$(MAKE) -C replication repl_gram.c repl_scanner.c syncrep_gram.c syncrep_scanner.c
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$(MAKE) -C storage/lmgr lwlocknames.h
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$(MAKE) -C utils fmgrtab.c fmgroids.h fmgrprotos.h errcodes.h
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$(MAKE) -C utils/misc guc-file.c
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$(MAKE) -C utils/sort qsort_tuple.c
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##########################################################################
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install: all installdirs install-bin
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ifeq ($(PORTNAME), cygwin)
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ifeq ($(MAKE_DLL), true)
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$(INSTALL_DATA) libpostgres.a '$(DESTDIR)$(libdir)/libpostgres.a'
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endif
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endif
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ifeq ($(PORTNAME), win32)
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ifeq ($(MAKE_DLL), true)
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$(INSTALL_DATA) libpostgres.a '$(DESTDIR)$(libdir)/libpostgres.a'
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endif
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endif
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$(MAKE) -C catalog install-data
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$(MAKE) -C tsearch install-data
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$(INSTALL_DATA) $(srcdir)/libpq/pg_hba.conf.sample '$(DESTDIR)$(datadir)/pg_hba.conf.sample'
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$(INSTALL_DATA) $(srcdir)/libpq/pg_ident.conf.sample '$(DESTDIR)$(datadir)/pg_ident.conf.sample'
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$(INSTALL_DATA) $(srcdir)/utils/misc/postgresql.conf.sample '$(DESTDIR)$(datadir)/postgresql.conf.sample'
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$(INSTALL_DATA) $(srcdir)/access/transam/recovery.conf.sample '$(DESTDIR)$(datadir)/recovery.conf.sample'
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install-bin: postgres $(POSTGRES_IMP) installdirs
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$(INSTALL_PROGRAM) postgres$(X) '$(DESTDIR)$(bindir)/postgres$(X)'
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ifneq ($(PORTNAME), win32)
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@rm -f '$(DESTDIR)$(bindir)/postmaster$(X)'
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ln -s postgres$(X) '$(DESTDIR)$(bindir)/postmaster$(X)'
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else
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$(INSTALL_PROGRAM) postgres$(X) '$(DESTDIR)$(bindir)/postmaster$(X)'
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endif
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ifeq ($(MAKE_EXPORTS), true)
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$(INSTALL_DATA) $(POSTGRES_IMP) '$(DESTDIR)$(pkglibdir)/$(POSTGRES_IMP)'
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$(INSTALL_PROGRAM) $(MKLDEXPORT) '$(DESTDIR)$(pgxsdir)/$(MKLDEXPORT_DIR)/mkldexport.sh'
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endif
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.PHONY: install-bin
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installdirs:
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$(MKDIR_P) '$(DESTDIR)$(bindir)' '$(DESTDIR)$(datadir)'
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ifeq ($(PORTNAME), cygwin)
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ifeq ($(MAKE_DLL), true)
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$(MKDIR_P) '$(DESTDIR)$(libdir)'
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endif
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endif
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ifeq ($(PORTNAME), win32)
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ifeq ($(MAKE_DLL), true)
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$(MKDIR_P) '$(DESTDIR)$(libdir)'
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endif
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endif
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ifeq ($(MAKE_EXPORTS), true)
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$(MKDIR_P) '$(DESTDIR)$(pkglibdir)'
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$(MKDIR_P) '$(DESTDIR)$(pgxsdir)/$(MKLDEXPORT_DIR)'
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endif
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##########################################################################
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uninstall:
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rm -f '$(DESTDIR)$(bindir)/postgres$(X)' '$(DESTDIR)$(bindir)/postmaster'
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ifeq ($(MAKE_EXPORTS), true)
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rm -f '$(DESTDIR)$(pkglibdir)/$(POSTGRES_IMP)'
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rm -f '$(DESTDIR)$(pgxsdir)/$(MKLDEXPORT_DIR)/mkldexport.sh'
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endif
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ifeq ($(PORTNAME), cygwin)
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ifeq ($(MAKE_DLL), true)
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rm -f '$(DESTDIR)$(libdir)/libpostgres.a'
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endif
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endif
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ifeq ($(PORTNAME), win32)
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ifeq ($(MAKE_DLL), true)
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rm -f '$(DESTDIR)$(libdir)/libpostgres.a'
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endif
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endif
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$(MAKE) -C catalog uninstall-data
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$(MAKE) -C tsearch uninstall-data
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rm -f '$(DESTDIR)$(datadir)/pg_hba.conf.sample' \
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'$(DESTDIR)$(datadir)/pg_ident.conf.sample' \
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'$(DESTDIR)$(datadir)/postgresql.conf.sample' \
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'$(DESTDIR)$(datadir)/recovery.conf.sample'
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##########################################################################
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clean:
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rm -f $(LOCALOBJS) postgres$(X) $(POSTGRES_IMP) \
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$(top_builddir)/src/include/parser/gram.h \
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$(top_builddir)/src/include/catalog/schemapg.h \
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$(top_builddir)/src/include/storage/lwlocknames.h \
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$(top_builddir)/src/include/utils/fmgroids.h \
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$(top_builddir)/src/include/utils/fmgrprotos.h \
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$(top_builddir)/src/include/utils/probes.h
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ifeq ($(PORTNAME), cygwin)
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rm -f postgres.dll libpostgres.a
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endif
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ifeq ($(PORTNAME), win32)
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rm -f postgres.dll libpostgres.a $(WIN32RES)
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endif
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distclean: clean
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rm -f port/tas.s port/dynloader.c port/pg_sema.c port/pg_shmem.c
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maintainer-clean: distclean
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rm -f bootstrap/bootparse.c \
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bootstrap/bootscanner.c \
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parser/gram.c \
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parser/gram.h \
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parser/scan.c \
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catalog/schemapg.h \
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catalog/postgres.bki \
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catalog/postgres.description \
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catalog/postgres.shdescription \
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replication/repl_gram.c \
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replication/repl_scanner.c \
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replication/syncrep_gram.c \
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replication/syncrep_scanner.c \
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storage/lmgr/lwlocknames.c \
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storage/lmgr/lwlocknames.h \
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utils/fmgroids.h \
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utils/fmgrprotos.h \
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utils/fmgrtab.c \
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utils/errcodes.h \
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utils/misc/guc-file.c \
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utils/sort/qsort_tuple.c
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##########################################################################
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#
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# Support for code development.
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#
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# Use target "quick" to build "postgres" when you know all the subsystems
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# are up to date. It saves the time of doing all the submakes.
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.PHONY: quick
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quick: $(OBJS)
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$(CC) $(CFLAGS) $(LDFLAGS) $(LDFLAGS_EX) $(export_dynamic) $(call expand_subsys,$^) $(LIBS) -o postgres
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