From 54fe7013b1a25be228eeb2aba3553f6219952de6 Mon Sep 17 00:00:00 2001
From: Allan <allan@4gl.io>
Date: Thu, 20 Jul 2023 21:29:34 +0100
Subject: [PATCH] fix: reducing audit data volumes. Closes #4

---
 sas/sasjs/macros/bitemporal_dataloader.sas | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sas/sasjs/macros/bitemporal_dataloader.sas b/sas/sasjs/macros/bitemporal_dataloader.sas
index 132bc29..428bb0a 100755
--- a/sas/sasjs/macros/bitemporal_dataloader.sas
+++ b/sas/sasjs/macros/bitemporal_dataloader.sas
@@ -1390,9 +1390,11 @@ run;
       ,processed_dttm=&now
       ,loadref=%superq(etlsource)
     )
-    data _null_;
+    /* exclude unchanged values in modified rows */
+    data work.mp_storediffs;
       set work.mp_storediffs;
-      putlog load_ref= libref= dsn= key_hash= tgtvar_nm=;
+      if MOVE_TYPE="M" and IS_PK=0 and IS_DIFF=0 then delete;
+      * putlog load_ref= libref= dsn= key_hash= tgtvar_nm=;
     run;
     proc append base=&outds_audit data=work.mp_storediffs;
     run;