1 files changed, 0 insertions, 95 deletions

diff --git a/src/backend/utils/adt/float.c b/src/backend/utils/adt/float.c
index 901edcc8961..cbbb8aecafc 100644
--- a/src/backend/utils/adt/float.c
+++ b/src/backend/utils/adt/float.c
@@ -21,10 +21,8 @@
 
 #include "catalog/pg_type.h"
 #include "common/int.h"
-#include "common/pg_prng.h"
 #include "common/shortest_dec.h"
 #include "libpq/pqformat.h"
-#include "miscadmin.h"
 #include "utils/array.h"
 #include "utils/float.h"
 #include "utils/fmgrprotos.h"
@@ -64,10 +62,6 @@ float8		degree_c_sixty = 60.0;
 float8		degree_c_one_half = 0.5;
 float8		degree_c_one = 1.0;
 
-/* State for drandom() and setseed() */
-static bool drandom_seed_set = false;
-static pg_prng_state drandom_seed;
-
 /* Local function prototypes */
 static double sind_q1(double x);
 static double cosd_q1(double x);
@@ -2785,95 +2779,6 @@ derfc(PG_FUNCTION_ARGS)
 }
 
 
-/* ========== RANDOM FUNCTIONS ========== */
-
-
-/*
- * initialize_drandom_seed - initialize drandom_seed if not yet done
- */
-static void
-initialize_drandom_seed(void)
-{
-	/* Initialize random seed, if not done yet in this process */
-	if (unlikely(!drandom_seed_set))
-	{
-		/*
-		 * If possible, initialize the seed using high-quality random bits.
-		 * Should that fail for some reason, we fall back on a lower-quality
-		 * seed based on current time and PID.
-		 */
-		if (unlikely(!pg_prng_strong_seed(&drandom_seed)))
-		{
-			TimestampTz now = GetCurrentTimestamp();
-			uint64		iseed;
-
-			/* Mix the PID with the most predictable bits of the timestamp */
-			iseed = (uint64) now ^ ((uint64) MyProcPid << 32);
-			pg_prng_seed(&drandom_seed, iseed);
-		}
-		drandom_seed_set = true;
-	}
-}
-
-/*
- *		drandom		- returns a random number
- */
-Datum
-drandom(PG_FUNCTION_ARGS)
-{
-	float8		result;
-
-	initialize_drandom_seed();
-
-	/* pg_prng_double produces desired result range [0.0 - 1.0) */
-	result = pg_prng_double(&drandom_seed);
-
-	PG_RETURN_FLOAT8(result);
-}
-
-/*
- *		drandom_normal	- returns a random number from a normal distribution
- */
-Datum
-drandom_normal(PG_FUNCTION_ARGS)
-{
-	float8		mean = PG_GETARG_FLOAT8(0);
-	float8		stddev = PG_GETARG_FLOAT8(1);
-	float8		result,
-				z;
-
-	initialize_drandom_seed();
-
-	/* Get random value from standard normal(mean = 0.0, stddev = 1.0) */
-	z = pg_prng_double_normal(&drandom_seed);
-	/* Transform the normal standard variable (z) */
-	/* using the target normal distribution parameters */
-	result = (stddev * z) + mean;
-
-	PG_RETURN_FLOAT8(result);
-}
-
-/*
- *		setseed		- set seed for the random number generator
- */
-Datum
-setseed(PG_FUNCTION_ARGS)
-{
-	float8		seed = PG_GETARG_FLOAT8(0);
-
-	if (seed < -1 || seed > 1 || isnan(seed))
-		ereport(ERROR,
-				(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
-				 errmsg("setseed parameter %g is out of allowed range [-1,1]",
-						seed)));
-
-	pg_prng_fseed(&drandom_seed, seed);
-	drandom_seed_set = true;
-
-	PG_RETURN_VOID();
-}
-
-
 
 /*
  *		=========================