Issue - (#1): Initial Commit for PostgreSQL's (pg_stat_statement).

The pg_stat_monitor is based on PostgreSQL-11's pg_stat_statement.
To keep track of the changes, this is the base code of
PostgreSQL's pg_stat_statement.

(commit = d898edf4f233a3ffe6a0da64179fc268a1d46200).

.gitignore

@@ -30,7 +30,6 @@
 
 # Executables
 *.exe
-*.out
 *.app
 *.i*86
 *.x86_64

Makefile

@@ -0,0 +1,31 @@
+# contrib/pg_stat_statements/Makefile
+
+MODULE_big = pg_stat_statements
+OBJS = pg_stat_statements.o $(WIN32RES)
+
+EXTENSION = pg_stat_statements
+DATA = pg_stat_statements--1.4.sql pg_stat_statements--1.5--1.6.sql \
+	pg_stat_statements--1.4--1.5.sql pg_stat_statements--1.3--1.4.sql \
+	pg_stat_statements--1.2--1.3.sql pg_stat_statements--1.1--1.2.sql \
+	pg_stat_statements--1.0--1.1.sql \
+	pg_stat_statements--unpackaged--1.0.sql
+PGFILEDESC = "pg_stat_statements - execution statistics of SQL statements"
+
+LDFLAGS_SL += $(filter -lm, $(LIBS))
+
+REGRESS_OPTS = --temp-config $(top_srcdir)/contrib/pg_stat_statements/pg_stat_statements.conf
+REGRESS = pg_stat_statements
+# Disabled because these tests require "shared_preload_libraries=pg_stat_statements",
+# which typical installcheck users do not have (e.g. buildfarm clients).
+NO_INSTALLCHECK = 1
+
+ifdef USE_PGXS
+PG_CONFIG = pg_config
+PGXS := $(shell $(PG_CONFIG) --pgxs)
+include $(PGXS)
+else
+subdir = contrib/pg_stat_statements
+top_builddir = ../..
+include $(top_builddir)/src/Makefile.global
+include $(top_srcdir)/contrib/contrib-global.mk
+endif