Thanks Alex,

I will try your "not programming" :) solution.  Really appreciate your time and 
effort. 

manohar

On Sep 22, 2014, at 6:23 PM, Alexandre Rafalovitch <arafa...@gmail.com> wrote:

> You could try - for your ideal scenario - creating an
> UpdateRequestProcessor (URP) chain, that
> includes:ParseDateFieldUpdateProcessorFactory
> https://lucene.apache.org/solr/4_10_0/solr-core/org/apache/solr/update/processor/ParseDateFieldUpdateProcessorFactory.html
> 
> Notice that it has been designed for dynamic field scenario, so by
> default it looks at everything and tries to make it a date. But its
> parent class has some parameters to specify specific fields to use:
> https://lucene.apache.org/solr/4_10_0/solr-core/org/apache/solr/update/processor/FieldMutatingUpdateProcessorFactory.html
> 
> You can see an example in the schemaless config example:
> https://github.com/apache/lucene-solr/blob/lucene_solr_4_10_0/solr/example/example-schemaless/solr/collection1/conf/solrconfig.xml#L1584
> 
> Just remember that when you are creating a URP chain:
> 1) You need to keep two (or three) of the update request processor in
> the chain, not just your date one. The details are here:
> https://wiki.apache.org/solr/UpdateRequestProcessor . The example
> above uses three, to deal with cloud situation
> 2) You need to refer to that chain in the request handler to make sure
> it is actually used:
> https://github.com/apache/lucene-solr/blob/lucene_solr_4_10_0/solr/example/example-schemaless/solr/collection1/conf/solrconfig.xml#L1014
> 
> I THINK this should work and it would classify under configuration not
> customization and definitely not programming.
> 
> Regards,
>   Alex.
> Personal: http://www.outerthoughts.com/ and @arafalov
> Solr resources and newsletter: http://www.solr-start.com/ and @solrstart
> Solr popularizers community: https://www.linkedin.com/groups?gid=6713853
> 
> 
> On 22 September 2014 16:16, Manohar Kanuri <s...@kanuri.org> wrote:
>> Hello,
>> 
>> I am a non-techie who decided to download and install Solr 5.0 to parse data 
>>  for my community activism. Got it installed and running, updated the 
>> example schema and installation with a bunch of CSV data. And went back to 
>> deal with the first of two fields I deferred till later - dates and location 
>> data.
>> 
>> The CSV data file for Jan - August 2014 is about 650mb with about 1.25 
>> million records/rows. I split it into 5 pieces and went changed MM/DD/YYYY 
>> HH:MM:SS AM/PM to the YYYY-MM-DDTHH:MM:SSZ format required by Solr, using 
>> TextWrangler. Which is what I know and a step up from trying to use Mac 
>> Numbers spreadsheet which does it very easily but I will have to break it 
>> into pieces smaller than 25-30mb. Random fields can get updated months after 
>> the record was created so I have to find an easier way than break the CSV 
>> file into smaller bits and reformat manually. Each record/row has 4 date 
>> fields so potentially there are upto 5 million fields to be reformatted in 8 
>> months worth of data..
>> 
>> I did a Google search (didn't see a Solr search page) on the mailing list 
>> archives and the internet, but seems like my question is either too simple 
>> and/or it's staring me in the face and I'm just missing it:  Is there a 
>> simple way to reformat the dates to Solr-style in a 650mb-1gig CSV file? Or, 
>> ideally, have the dates and times automatically reformatted as the Solr 
>> index gets updated the latest data (I recall reading this was not possible). 
>> Is there a widget/gadget/gizmo/script that would do this?
>> 
>> thanks,
>> manohar

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