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https://issues.apache.org/jira/browse/HIVE-3253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13490281#comment-13490281
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Mark Grover commented on HIVE-3253:
-----------------------------------
+1 on Swarnim's comment.
> ArrayIndexOutOfBounds exception for deeply nested structs
> ---------------------------------------------------------
>
> Key: HIVE-3253
> URL: https://issues.apache.org/jira/browse/HIVE-3253
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Affects Versions: 0.9.0, 0.10.0
> Reporter: Swarnim Kulkarni
> Assignee: Travis Crawford
> Attachments: HIVE-3253_moar_nesting.1.patch, jsonout.hive
>
>
> It was observed that while creating table with deeply nested structs might
> throw this exception:
> {code}
> java.lang.ArrayIndexOutOfBoundsException: 9
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:281)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:263)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyObjectInspector(LazyFactory.java:276)
> at
> org.apache.hadoop.hive.serde2.lazy.LazyFactory.createLazyStructInspector(LazyFactory.java:354)
> {code}
> The reason being that currently the separators array has been hardcoded to be
> of size 8 in the LazySimpleSerde.
> {code}
> // Read the separators: We use 8 levels of separators by default, but we
> // should change this when we allow users to specify more than 10 levels
> // of separators through DDL.
> serdeParams.separators = new byte[8];
> {code}
> If possible, we should increase this size or at least make it configurable to
> properly handle deeply nested structs.
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