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PostingsFormat now uses a __________ API when writing postings, just like doc values.

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PostingsFormat now uses a __________ API when writing postings, just like doc values.

(a) push

(b) pull

(c) read

(d) all of the mentioned

I have been asked this question in an international level competition.

My question is taken from Lucene with Hadoop in portion Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift of Hadoop

1 Answer

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Best answer
Right answer is (b) pull

To explain: This is powerful because you can do things in your postings format that require making more than one pass through the postings such as iterating over all postings.

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