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From odiache...@apache.org
Subject [08/18] incubator-hawq git commit: HAWQ-1048. Return NULL instead of empty string.
Date Wed, 05 Oct 2016 18:29:18 GMT
HAWQ-1048. Return NULL instead of empty string.


Project: http://git-wip-us.apache.org/repos/asf/incubator-hawq/repo
Commit: http://git-wip-us.apache.org/repos/asf/incubator-hawq/commit/0ff70373
Tree: http://git-wip-us.apache.org/repos/asf/incubator-hawq/tree/0ff70373
Diff: http://git-wip-us.apache.org/repos/asf/incubator-hawq/diff/0ff70373

Branch: refs/heads/HAWQ-964
Commit: 0ff70373b3b700028892c72fd9e1fb516bbcaa25
Parents: 7a9cc88
Author: Oleksandr Diachenko <odiachenko@pivotal.io>
Authored: Wed Sep 21 18:19:18 2016 -0700
Committer: Oleksandr Diachenko <odiachenko@pivotal.io>
Committed: Wed Sep 21 18:19:18 2016 -0700

----------------------------------------------------------------------
 src/backend/access/external/pxffilters.c | 6 ++++++
 1 file changed, 6 insertions(+)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/incubator-hawq/blob/0ff70373/src/backend/access/external/pxffilters.c
----------------------------------------------------------------------
diff --git a/src/backend/access/external/pxffilters.c b/src/backend/access/external/pxffilters.c
index 0d1e1fa..8c3864d 100644
--- a/src/backend/access/external/pxffilters.c
+++ b/src/backend/access/external/pxffilters.c
@@ -317,6 +317,12 @@ pxf_serialize_filter_list(List *expressionItems)
 		}
 	}
 
+	if (resbuf->len == 0)
+	{
+		pfree(resbuf->data);
+		return NULL;
+	}
+
 	return resbuf->data;
 }
 


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