fix: Postrgres group aggregation

src/Adapters/Storage/Postgres/PostgresStorageAdapter.js

@@ -2389,7 +2389,16 @@ export class PostgresStorageAdapter implements StorageAdapter {
           sort !== undefined && sorting.length > 0 ? `ORDER BY ${sorting}` : '';
       }
     }
-    const originalQuery = `SELECT ${columns.join()} FROM $1:name ${wherePattern} ${sortPattern} ${limitPattern} ${skipPattern} ${groupPattern}`;
+
+    if (groupPattern) {
+      columns.forEach((e, i, a) => {
+        if (e && e.trim() === '*') {
+          a[i] = '';
+        }
+      });
+    }
+
+    const originalQuery = `SELECT ${columns.filter(Boolean).join()} FROM $1:name ${wherePattern} ${skipPattern} ${groupPattern} ${sortPattern} ${limitPattern}`;
     const qs = explain ? this.createExplainableQuery(originalQuery) : originalQuery;
     debug(qs, values);
     return this._client
@@ -2575,10 +2584,10 @@ export class PostgresStorageAdapter implements StorageAdapter {
         ) {
           // Cast the error into the proper parse error
           throw new Parse.Error(
-            Parse.Error.DUPLICATE_VALUE,
-            'A duplicate value for a field with unique values was provided'
-          );
-        } else {
+			Parse.Error.DUPLICATE_VALUE,
+			'A duplicate value for a field with unique values was provided'
+		  );
+		} else {
           throw error;
         }
       });