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https://issues.apache.org/jira/browse/MADLIB-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan closed MADLIB-1429.
-----------------------------------
Resolution: Fixed
https://github.com/apache/madlib/pull/498
> DL - utility to load and delete custom Python functions
> -------------------------------------------------------
>
> Key: MADLIB-1429
> URL: https://issues.apache.org/jira/browse/MADLIB-1429
> Project: Apache MADlib
> Issue Type: Improvement
> Reporter: Frank McQuillan
> Priority: Major
> Fix For: v1.18.0
>
>
> Many deep learning models require loss functions and metrics that are not
> part of the standard deep learning libraries.
> In order to pass along this object to Keras, we want to create a table which
> the user will populate with a pickled object mapping to the custom function.
> We can model this utility on
> http://madlib.apache.org/docs/latest/group__grp__keras__model__arch.html
> which loads models into a model arch table.
> As part of this story, we want to create a utility function with the
> following api:
> {code}
> load_custom_function(
> object_table VARCHAR, -- output table
> object BYTEA, -- bytea object for custom function
> name VARCHAR, -- function name (must be unique)
> description VARCHAR -- description (optional)
> )
> {code}
> Creates the following output table:
> {code}
> |id | name | description | function |
> |---|-----------------|---------------|-------------|
> |1 | keras_custom_fn | test function | \x80026... |
> {code}
> As part of this story, we want a delete utility function with the following
> api:
> {code}
> delete_custom_function(
> object_table VARCHAR, -- table containing the Python object
> id -- id of object to delete
> )
> {code}
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