diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 76f77cb..43dbaec 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -17850,6 +17850,15 @@ postgres=# SELECT * FROM pg_xlogfile_name_offset(pg_stop_backup());
Return information about a file.
+
+
+ pg_report_log(elevel>text>, message> anyelement, ishidestmt>boolean>)
+
+ void
+
+ Write message into log file as per log level.
+
+
@@ -17918,6 +17927,24 @@ SELECT (pg_stat_file('filename')).modification;
+
+ pg_report_log
+
+
+ pg_report_log> is useful to write custom messages
+ into current log destination and returns void.
+ This function don't support the PANIC, FATAL log levels due to their unique internal DB usage, which may cause the database instability. Using ishidestmt>, function can write or ignore the current SQL statement into the log file.
+ Typical usages include:
+
+postgres=# SELECT pg_report_log('NOTICE', 'Custom Message', true);
+NOTICE: Custom Message
+ pg_report_log
+---------------
+
+(1 row)
+
+
+
diff --git a/src/backend/utils/adt/misc.c b/src/backend/utils/adt/misc.c
index c0495d9..1c7c263 100644
--- a/src/backend/utils/adt/misc.c
+++ b/src/backend/utils/adt/misc.c
@@ -76,6 +76,91 @@ current_query(PG_FUNCTION_ARGS)
}
/*
+ * pg_report_log()
+ *
+ * Printing custom log messages in log file.
+ */
+
+typedef struct
+{
+ int ecode;
+ char *level;
+} errorlevels;
+
+Datum
+pg_report_log(PG_FUNCTION_ARGS)
+{
+
+ /*
+ * Do not add FATAL, PANIC log levels to the below list.
+ */
+ errorlevels elevels[]={
+ {DEBUG5, "DEBUG5"}, {DEBUG4, "DEBUG4"}, {DEBUG3, "DEBUG3"},
+ {DEBUG2, "DEBUG2"}, {DEBUG1, "DEBUG1"}, {LOG, "LOG"},
+ {COMMERROR, "COMMERROR"}, {INFO, "INFO"}, {NOTICE, "NOTICE"},
+ {WARNING, "WARNING"}, {ERROR, "ERROR"}
+ /*
+ * Adding PGERROR to elevels if WIN32
+ */
+ #ifdef WIN32
+ ,{PGERROR, "PGERROR"}
+ #endif
+ };
+
+ int itr = 0;
+ bool ishidestmt = false;
+ int noelevel = (int) sizeof(elevels)/sizeof(*elevels);
+ char *level;
+
+ level = text_to_cstring(PG_GETARG_TEXT_P(0));
+ ishidestmt = PG_GETARG_BOOL(2);
+
+ /*
+ * Do not expose FATAL, PANIC log levels to outer world.
+ */
+ if(pg_strcasecmp("FATAL", level) == 0)
+ ereport(ERROR,
+ (errmsg("%s is an unsupported report log level.", level)));
+
+ else if(pg_strcasecmp("PANIC", level) == 0)
+ ereport(ERROR,
+ (errmsg("%s is an unsupported report log level.", level)));
+ else
+ {
+ while (itr < noelevel)
+ {
+ if (pg_strcasecmp(elevels[itr].level, level) == 0)
+ {
+ /*
+ * Is errhide statement true
+ */
+ if (ishidestmt == true)
+ {
+ ereport(elevels[itr].ecode,
+ (errmsg("%s", text_to_cstring(PG_GETARG_TEXT_P(1))),
+ errhidestmt(true)));
+ break;
+ }
+ else
+ {
+ ereport(elevels[itr].ecode,_
+ (errmsg("%s", text_to_cstring(PG_GETARG_TEXT_P(1)))));
+ break;
+ }
+ }
+ itr++;
+ }
+
+ /* Invalid log level */
+ if (itr == noelevel)
+ ereport(ERROR,
+ (errmsg("Unknown log level \"%s\"", level)));
+ else
+ PG_RETURN_VOID();
+ }
+}
+
+/*
* Send a signal to another backend.
*
* The signal is delivered if the user is either a superuser or the same
diff --git a/src/include/catalog/pg_proc.h b/src/include/catalog/pg_proc.h
index 6fd1278..b745d80 100644
--- a/src/include/catalog/pg_proc.h
+++ b/src/include/catalog/pg_proc.h
@@ -5344,6 +5344,14 @@ DESCR("tsm_bernoulli_reset(internal)");
DATA(insert OID = 3346 ( tsm_bernoulli_cost PGNSP PGUID 12 1 0 0 0 f f f f t f v 7 0 2278 "2281 2281 2281 2281 2281 2281 2281" _null_ _null_ _null_ _null_ _null_ tsm_bernoulli_cost _null_ _null_ _null_ ));
DESCR("tsm_bernoulli_cost(internal)");
+/* Logging function */
+
+DATA(insert OID = 6015 ( pg_report_log PGNSP PGUID 12 1 0 0 0 f f f f t f i 3 0 2278 "25 25 16" _null_ _null_ _null_ _null_ _null_ pg_report_log _null_ _null_ _null_ ));
+DESCR("write message to log file");
+DATA(insert OID = 6016 ( pg_report_log PGNSP PGUID 14 1 0 0 0 f f f f t f s 3 0 2278 "25 2283 16" _null_ _null_ _null_ _null_ _null_ "SELECT pg_report_log($1::pg_catalog.text, $2::pg_catalog.text, $3::boolean)" _null_ _null_ _null_ ));
+DESCR("write message to log file");
+
+
/*
* Symbolic values for provolatile column: these indicate whether the result
* of a function is dependent *only* on the values of its explicit arguments,
diff --git a/src/include/utils/builtins.h b/src/include/utils/builtins.h
index fcb0bf0..3a2164b 100644
--- a/src/include/utils/builtins.h
+++ b/src/include/utils/builtins.h
@@ -495,6 +495,7 @@ extern Datum pg_typeof(PG_FUNCTION_ARGS);
extern Datum pg_collation_for(PG_FUNCTION_ARGS);
extern Datum pg_relation_is_updatable(PG_FUNCTION_ARGS);
extern Datum pg_column_is_updatable(PG_FUNCTION_ARGS);
+extern Datum pg_report_log(PG_FUNCTION_ARGS);
/* oid.c */
extern Datum oidin(PG_FUNCTION_ARGS);
diff --git a/src/include/utils/elog.h b/src/include/utils/elog.h
index 7684717..fcb7218 100644
--- a/src/include/utils/elog.h
+++ b/src/include/utils/elog.h
@@ -16,6 +16,13 @@
#include
+/*
+ * XXX
+ * If you are adding another elevel, make sure you update the
+ * pg_report_log() in src/backend/utils/adt/misc.c, with the
+ * new elevel
+ */
+
/* Error level codes */
#define DEBUG5 10 /* Debugging messages, in categories of
* decreasing detail. */