pgbench_zero_weight.patch

diff --git a/src/bin/pgbench/pgbench.c b/src/bin/pgbench/pgbench.c
new file mode 100644
index dab1ed4..e8c1906
*** a/src/bin/pgbench/pgbench.c
--- b/src/bin/pgbench/pgbench.c
*************** parseScriptWeight(const char *option, ch
*** 2855,2864 ****
  			fprintf(stderr, "invalid weight specification: %s\n", sep);
  			exit(1);
  		}
! 		if (wtmp > INT_MAX || wtmp <= 0)
  		{
  			fprintf(stderr,
! 			"weight specification out of range (1 .. %u): " INT64_FORMAT "\n",
  					INT_MAX, (int64) wtmp);
  			exit(1);
  		}
--- 2855,2864 ----
  			fprintf(stderr, "invalid weight specification: %s\n", sep);
  			exit(1);
  		}
! 		if (wtmp > INT_MAX || wtmp < 0)
  		{
  			fprintf(stderr,
! 			"weight specification out of range (0 .. %u): " INT64_FORMAT "\n",
  					INT_MAX, (int64) wtmp);
  			exit(1);
  		}
*************** main(int argc, char **argv)
*** 3429,3434 ****
--- 3429,3440 ----
  		/* cannot overflow: weight is 32b, total_weight 64b */
  		total_weight += sql_script[i].weight;
  
+ 	if (total_weight == 0)
+ 	{
+ 		fprintf(stderr, "The total of script weights (from -b and -f options) cannot be zero.\n");
+ 		exit(1);
+ 	}
+ 
  	/* show per script stats if several scripts are used */
  	if (num_scripts > 1)
  		per_script_stats = true;