From ae2b47b29d84bd10839d855f3a52747eb3fe99f4 Mon Sep 17 00:00:00 2001
From: Claudio Atzori <claudio.atzori@isti.cnr.it>
Date: Fri, 9 Jul 2021 15:47:51 +0200
Subject: [PATCH] [broker] added coalesce(1) on the stats dataset before
 storing it on postgres

---
 .../src/main/java/eu/dnetlib/dhp/broker/oa/GenerateStatsJob.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateStatsJob.java b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateStatsJob.java
index a4fb20b1ca..9927d65606 100644
--- a/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateStatsJob.java
+++ b/dhp-workflows/dhp-broker-events/src/main/java/eu/dnetlib/dhp/broker/oa/GenerateStatsJob.java
@@ -80,6 +80,7 @@ public class GenerateStatsJob {
 				.map(
 					(MapFunction<Tuple2<String, DatasourceStats>, DatasourceStats>) t -> t._2,
 					Encoders.bean(DatasourceStats.class))
+				.coalesce(1)
 				.write()
 				.mode(SaveMode.Overwrite)
 				.jdbc(dbUrl, "oa_datasource_stats_temp", connectionProperties);