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Enter "incremental" mode if a query returns more than "incrementalBufferRows" #251

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julianhyde opened this issue Jan 7, 2019 · 1 comment

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@julianhyde
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Enter "incremental" mode if a query returns more than "incrementalBufferRows". "incrementalBufferRows" would be a new parameter, default value 1,000.

With this change, and assuming that the session is in non-incremental mode, small queries would be nicely formatted, and large queries would not consume too much memory and would not pause too long before starting to output results.

See https://issues.apache.org/jira/browse/HIVE-14170; we could possibly apply the same change.

Related: #228.

@julianhyde
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Fixed 19ea58e (thanks for PR #262, @snuyanzin!), with a further enhancement in 0eda7e0.

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