pool size can be pass via configuration

Author: pphetra

lib/index.js

@@ -43,6 +43,10 @@ PG.prototype.connect = function(config, callback) {
 
   if(pool) return pool.acquire(cb);
 
+  var poolSize = defaults.poolSize;
+  if (c.poolSize) {
+      poolSize = c.poolSize;
+  }
   var pool = pools[poolName] = genericPool.Pool({
     name: poolName,
     create: function(callback) {
@@ -75,7 +79,7 @@ PG.prototype.connect = function(config, callback) {
     destroy: function(client) {
       client.end();
     },
-    max: defaults.poolSize,
+    max: poolSize,
     idleTimeoutMillis: defaults.poolIdleTimeout,
     reapIntervalMillis: defaults.reapIntervalMillis
   });