diff --git a/columnar/src/backend/columnar/columnar_customscan.c b/columnar/src/backend/columnar/columnar_customscan.c
index a4d7b4a..eb09a82 100644
--- a/columnar/src/backend/columnar/columnar_customscan.c
+++ b/columnar/src/backend/columnar/columnar_customscan.c
@@ -287,7 +287,7 @@ columnar_customscan_init()
 					 "is uncorrelated."),
 		NULL,
 		&ColumnarQualPushdownCorrelationThreshold,
-		0.9,
+		0.4,
 		0.0,
 		1.0,
 		PGC_USERSET,