.. _fwflag_add_postimexdiff:
===================
--add_postimexdiff
===================
Switch
======

--add_postimexdiff

Description
===========

Like :doc:`fwflag_add_timexdiff`, but also creates a part-of-speech-tagged version of the table.

Argument and Default Value
==========================

No argument. Boolean switch, default: ``False``. Uses :doc:`fwflag_date_field` to know each message's post-time.

Details
=======

Same requirements as :doc:`fwflag_add_timexdiff`: needs a running Stanford CoreNLP server on localhost (``FeatureExtractor.addPOSAndTimexDiffFeatTable()`` connects via ``jsonrpclib.Server(...)``) with time-expression annotation available.

**Known issue — broken in SQLite mode too, and hit first.** Same ``mm.disableTableKeys(...)`` pattern as :doc:`fwflag_add_timexdiff`; expect ``sqlite3.OperationalError: near "DISABLE": syntax error`` before the CoreNLP logic is ever exercised.

Other Switches
==============

Required Switches:

* :doc:`fwflag_d`, :doc:`fwflag_c`, :doc:`fwflag_t`
* :doc:`fwflag_date_field`
* A running Stanford CoreNLP server (external, not installable via pip)

Example Commands
================

Requires MySQL and a running CoreNLP server — not runnable as-is against the packaged SQLite ``dla_tutorial`` dataset:

.. code-block:: bash

	dlatkInterface.py -d dla_tutorial -t msgs -c user_id --date_field date --add_postimexdiff