Handle nested JSON correctly in SlickGrid. Fixes #1713. Fixes #1404

web/pgadmin/static/js/slickgrid/slick.pgadmin.editors.js

@@ -230,6 +230,16 @@
       var data = defaultValue = item[args.column.field];
       if (typeof data === "object" && !Array.isArray(data)) {
         data = JSON.stringify(data);
+      } else if (Array.isArray(data)) {
+        var temp = [];
+        $.each(data, function(i, val) {
+          if (typeof val === "object") {
+            temp.push(JSON.stringify(val));
+          } else {
+            temp.push(val)
+          }
+        });
+        data = "[" + temp.join() + "]";
       }
       $input.val(data);
       $input.select();
@@ -466,6 +476,16 @@
       var data = defaultValue = item[args.column.field];
       if (typeof data === "object" && !Array.isArray(data)) {
         data = JSON.stringify(data);
+      } else if (Array.isArray(data)) {
+        var temp = [];
+        $.each(data, function(i, val) {
+          if (typeof val === "object") {
+            temp.push(JSON.stringify(val));
+          } else {
+            temp.push(val)
+          }
+        });
+        data = "[" + temp.join() + "]";
       }
       $input.val(data);
       $input.select();

web/pgadmin/static/js/slickgrid/slick.pgadmin.formatters.js

@@ -24,6 +24,16 @@
       // Stringify only if it's json object
       if (typeof value === "object" && !Array.isArray(value)) {
         return JSON.stringify(value);
+      } else if (Array.isArray(value)) {
+        var temp = [];
+        $.each(value, function(i, val) {
+          if (typeof val === "object") {
+            temp.push(JSON.stringify(val));
+          } else {
+            temp.push(val)
+          }
+        });
+        return "[" + temp.join() + "]"
       } else {
         return value;
       }

web/pgadmin/tools/sqleditor/templates/sqleditor/js/sqleditor.js

@@ -1790,7 +1790,7 @@ define(
                  */
               var explain_data_array = [];
               if(
-                data.result && data.result.length > 1 &&
+                data.result && data.result.length >= 1 &&
                   data.result[0] && data.result[0].hasOwnProperty(
                     'QUERY PLAN'
                   ) && _.isObject(data.result[0]['QUERY PLAN'])