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MCOL-523 documentation part 3

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David Hall
2017-09-05 17:35:20 -05:00
parent bb21c79e87
commit ce51b9c5e2
5 changed files with 22 additions and 4 deletions
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6
utils/udfsdk/docs/source/usage/memoryallocation.rst
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@@ -72,9 +72,9 @@ In the MEDIAN UDAF, it works like this:
Notice that the data is to be stored in a std::map container.
The serialize method leverages Columnstore's ByteStream class (in namespace messageqcpp). This is not optional. The serialize and unserialize methods are each passed an reference to a ByteStream. The framework expects the data to be streamed into the ByteStream by serialize and streamed back into your data struct by unserialize. See the chapter on ByteStream for more information.
The serialize method leverages Columnstore's :ref:`ByteStream <bytestream>` class (in namespace messageqcpp). This is not optional. The serialize and unserialize methods are each passed an reference to a :ref:`ByteStream <bytestream>`. The framework expects the data to be streamed into the :ref:`ByteStream <bytestream>` by serialize and streamed back into your data struct by unserialize. See the chapter on :ref:`ByteStream <bytestream>` for more information.
For MEDIAN, serialize() iterates over the set and streams the values to the ByteStream and unserialze unstreams them back into the set:
For MEDIAN, serialize() iterates over the set and streams the values to the :ref:`ByteStream <bytestream>` and unserialze unstreams them back into the set:
.. literalinclude:: ../../../median.cpp
:lines: 290-305
@@ -82,7 +82,7 @@ For MEDIAN, serialize() iterates over the set and streams the values to the Byte
.. rubric:: createUserData()
The createUserData() method() has two parameters, a pointer reference to userData, and a length. Both of these are [OUT] parameters.
The :ref:`createUserData() <createuserdata>` method() has two parameters, a pointer reference to userData, and a length. Both of these are [OUT] parameters.
The userData parameter is to be set to an instance of your new data structure.

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utils/udfsdk/docs/source/usage/sourcefile.rst
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@@ -20,7 +20,7 @@ You may only need a few accunulators and counters. These can be represented as a
If you have a more complex data structure that may have varying size, you must use :ref:`complexdatamodel`. This should be defined in the header. Here's a struct for MEDIAN example from median.h:
.. literalinclude:: ../../../median.h
:lines: 84-97
:lines: 80-97
:language: cpp
In each of the functions that have a context parameter, you should type cast the data member of context's UserData member::