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Posted to issues@hawq.apache.org by "Lei Chang (JIRA)" <ji...@apache.org> on 2016/01/24 02:17:39 UTC
[jira] [Reopened] (HAWQ-313) Fix dereference pointer before null
check
[ https://issues.apache.org/jira/browse/HAWQ-313?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lei Chang reopened HAWQ-313:
----------------------------
> Fix dereference pointer before null check
> -----------------------------------------
>
> Key: HAWQ-313
> URL: https://issues.apache.org/jira/browse/HAWQ-313
> Project: Apache HAWQ
> Issue Type: Improvement
> Reporter: Xiang Sheng
> Assignee: Lei Chang
> Fix For: 2.0.0
>
>
> In the newly added udf, there is a dereference pointer before null check. we should fix it.
> In file apache-hawq/src/backend/cdb/cdbmetadatacache.c: 1437
> MetadataCacheEntry *entry = (MetadataCacheEntry *)hash_search(MetadataCache, (void *)&key, HASH_ENTER_NULL, &found);
> entry->file_size = 134217728;
> entry->block_num = 1;
> AllocMetadataBlock(entry->block_num, &entry->first_block_id, &entry->last_block_id);
> if(entry != NULL)
> {
> current++;
> success++;
> }
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