[iceberg] branch master updated: Cache data and delete manifest lists when either is null (#1171)

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The following commit(s) were added to refs/heads/master by this push:
     new 323a8a0  Cache data and delete manifest lists when either is null 
(#1171)
323a8a0 is described below

commit 323a8a00bb0577b398b66f59671c1fc2f1a83b10
Author: Miao Wang <wangmiao1...@users.noreply.github.com>
AuthorDate: Wed Jul 8 10:53:47 2020 -0700

    Cache data and delete manifest lists when either is null (#1171)
---
 core/src/main/java/org/apache/iceberg/BaseSnapshot.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/main/java/org/apache/iceberg/BaseSnapshot.java 
b/core/src/main/java/org/apache/iceberg/BaseSnapshot.java
index 30aed09..f687730 100644
--- a/core/src/main/java/org/apache/iceberg/BaseSnapshot.java
+++ b/core/src/main/java/org/apache/iceberg/BaseSnapshot.java
@@ -127,7 +127,7 @@ class BaseSnapshot implements Snapshot {
       this.allManifests = 
ManifestLists.read(io.newInputFile(manifestListLocation));
     }
 
-    if (dataManifests == null) {
+    if (dataManifests == null || deleteManifests == null) {
       this.dataManifests = ImmutableList.copyOf(Iterables.filter(allManifests,
           manifest -> manifest.content() == ManifestContent.DATA));
       this.deleteManifests = 
ImmutableList.copyOf(Iterables.filter(allManifests,