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From iyerr3 <...@git.apache.org>
Subject [GitHub] incubator-madlib pull request: Path: Return results for each match
Date Fri, 25 Mar 2016 01:33:26 GMT
Github user iyerr3 commented on a diff in the pull request:

    https://github.com/apache/incubator-madlib/pull/29#discussion_r57411341
  
    --- Diff: src/ports/postgres/modules/utilities/path.py_in ---
    @@ -108,8 +107,11 @@ def path(schema_madlib, source_table, output_table, partition_expr,
                                 *,
                                 nextval('{seq_gen}') AS {id_col_name},
    --- End diff --
    
    you're right. doing a quick test: 
    ```
    select count(*) from (select nextval('seq_test') as id from generate_series(1, 10000000))
q;
     Time: 11975.435 ms
    
    select count(*) from (select row_number() over() as id from generate_series(1, 10000000))
q;
    Time: 5716.938 ms
    ```



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