server/AyaNova/Controllers/ServerMetricsController.cs

@@ -206,12 +206,52 @@ namespace AyaNova.Api.Controllers
             dsDBTotalSize = Util.DataUtil.LargestTriangleThreeBuckets(dsDBTotalSize, (int)maxRecords) as List<Tuple<double, double>>;
 
             //table distribution, top 10
-            
+            List<MetricNameSize> TopTen = new List<MetricNameSize>();
+            using (var command = ct.Database.GetDbConnection().CreateCommand())
+            {
+                //top 10 tables by size
+                command.CommandText = @"SELECT relname AS ""table_name"", pg_table_size(C.oid) AS ""table_size"" FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace) WHERE nspname NOT IN ('pg_catalog', 'information_schema') AND nspname !~ '^pg_toast' AND relkind IN ('r') ORDER BY pg_table_size(C.oid) DESC LIMIT 10;";
+                ct.Database.OpenConnection();
+                using (var dr = command.ExecuteReader())
+                {
+                    if (dr.HasRows)
+                    {
+                        while (dr.Read())
+                        {
+                            TopTen.Add(new MetricNameSize() { name = dr.GetString(0), size = dr.GetInt64(1) });
+                        }
+                    }
+                    ct.Database.CloseConnection();
+                }
+            }
+
+            long DBTotalSize = 0;
+            using (var command = ct.Database.GetDbConnection().CreateCommand())
+            {
+                command.CommandText = "select pg_database_size(current_database());";
+                ct.Database.OpenConnection();
+                using (var dr = command.ExecuteReader())
+                {
+                    if (dr.HasRows)
+                    {
+                        DBTotalSize = dr.Read() ? dr.GetInt64(0) : 0;
+                    }
+                    ct.Database.CloseConnection();
+                }
+            }
+
+            long ttSize = 0;
+            foreach (MetricNameSize tt in TopTen)
+            {
+                ttSize += tt.size;
+            }
+            TopTen.Add(new MetricNameSize() { name = "other", size = DBTotalSize - ttSize });
 
             var ret = new
             {
-                
-                totalSize = dsDBTotalSize.Select(z => new MetricLong(DateTime.FromOADate(z.Item1), z.Item2 / MB)).ToArray()
+
+                totalSize = dsDBTotalSize.Select(z => new MetricLong(DateTime.FromOADate(z.Item1), z.Item2 / MB)).ToArray(),
+                TopTen = TopTen
 
             };
 
@@ -259,6 +299,12 @@ namespace AyaNova.Api.Controllers
 
             }
         }
+
+        public class MetricNameSize
+        {
+            public string name { get; set; }
+            public long size { get; set; }
+        }
         //----------
 
     }