7.00.02 - SQL-MapReduce Call - Aster Analytics

Teradata Aster® Analytics Foundation User GuideUpdate 2

Product
Aster Analytics
Release Number
7.00.02
Release Date
September 2017
Content Type
Programming Reference
User Guide
Publication ID
B700-1022-700K
Language
English (United States)

TextChunker requires each sentence to have a unique identifier, and the input to TextChunker must be partitioned by that identifier.

SELECT * FROM TextChunker (
  ON  POSTagger  (
    ON (
      SELECT paraid*1000+sentence_sn
      AS  sentence_id, sentence FROM  Sentenizer  (
        ON paragraphs_input
        TextColumn ('paratext')
        Accumulate ('paraid')
      )
    )
    TextColumn ('sentence')
    Accumulate ('sentence_id')
  ) PARTITION BY  sentence_id  ORDER BY word_sn
  WordColumn ('word')
  POSColumn ('pos_tag')
) ORDER BY 1, 2;