khannaekta opened a new pull request #444: DL: Improve performance for 
madlib_keras_predict()
URL: https://github.com/apache/madlib/pull/444
 
 
   JIRA: MADLIB-1345
   
   Passing huge model weights as a param to `internal_keras_predict()` for
   each row in the table slows the performance of overall 
`madlib_keras_predict()`.
   With this PR, the model weights will be passed in as a param only for the
   very first row(min(ctid)) fetched on each segment and NULL for the rest.
   With this change, we see `~4x` performance boost in the execution time
   of the existing `madlib_kerase_predict()`.

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