Yi Jin created HAWQ-1321:
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Summary: failNames wrongly uses memory context to build message
when ANALYZE failed
Key: HAWQ-1321
URL: https://issues.apache.org/jira/browse/HAWQ-1321
Project: Apache HAWQ
Issue Type: Bug
Components: Core
Reporter: Yi Jin
Assignee: Ed Espino
Fix For: 2.2.0.0-incubating
I find one bug exist in generating error message for ANALYZE when the message
size is large.
In analyzeStmt(), there is a variable called failNames. It is initialized in
caller's memory context, but it repallocs memory in relation context, and it is
freed in statement context. This is bug of wrongly using memory context. when
the relation and statement context are dropped at then end of function
analyzeStmt(), pat of its content will be flushed with 0. This explain why
another block's header was randomly wiped out in the bug.
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