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Type:
Bug
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: 0.9.0-incubating
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Fix Version/s: 0.9.2-incubating
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Component/s: None
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Labels:None
The uniquify(String, Set<String>, Suggester) method in SqlValidatorUtil tries to create a unique name for the supplied name. It does it inside the following loop which does not have an upper bound check. If the suggester returns a name that already exists in the nameList, then the loop will never terminate. I encountered this issue while doing some testing with a 3 way join query in Drill against text data.
for (int j = 0;; j++) { name = suggester.apply(originalName, j, nameList.size()); if (nameList.add(name)) { return name; } }