anchor.diff:  
   Default: false
   
  -==== sample_seed
  -
  -The `sample_seed` option allows you to read a random sample of documents from Solr using the specified seed. This option can be useful if you just need to explore the data before performing operations on the full result set. By default, if this option is provided, a 10% sample size is read from Solr, but you can use the `sample_pct` option to control the sample size.
  -
  -Usage: `option("sample_seed", "5150")`
  -
  -Default: None
  -
  -==== sample_pct
  -
  -The `sample_pct` option allows you to set the size of a random sample of documents from Solr; use a value between 0 and 1.
  -
  -Usage: `option("sample_pct", "0.05")`
  -
  -Default: 0.1
  -
  -==== solr.params
  -
  -The `solr.params` option can be used to specify any arbitrary Solr parameters in the form of a Solr query.
  -
  -TIP: Don't use this to pass parameters that are covered by other options, such as `fl` (use the `fields` option) or `sort`. This option is strictly intended for parameters that are *NOT* covered by other options.
  -
  -Usage: `option("solr.params", "fq=userId:[10 TO 1000]")`
  -
  +==== solr_field_types
  +
  +This option can used to specify field type for fields written to Solr. Only works if the field names are not already defined in Solr schema
  +
  +Usage: `option("solr_field_types", "rating:string,title:text_en"`
   
   === Querying Time Series Data
   
  
positive.code: 
  Usage: `option("splits_per_shard", "30")`
  
  Default: 20
  
  ==== flatten_multivalued
  
  
negative.code: [width="40%",frame="topbot",options="header,footer"]
  |======================
  |Connector      | Spark | Solr
  |http://search.maven.org/#artifactdetails%7Ccom.lucidworks.spark%7Cspark-solr%7C3.5.1%7Cjar[3.5.1]  | 2.3.1 | 7.3.1
  |http://search.maven.org/#artifactdetails%7Ccom.lucidworks.spark%7Cspark-solr%7C3.4.5%7Cjar[3.4.5]  | 2.2.1 | 7.2.1
  |http://search.maven.org/#artifactdetails%7Ccom.lucidworks.spark%7Cspark-solr%7C3.3.3%7Cjar[3.3.4]  | 2.2.0 | 7.1.0
  |http://search.maven.org/#artifactdetails%7Ccom.lucidworks.spark%7Cspark-solr%7C3.2.2%7Cjar[3.2.2]  | 2.2.0 | 6.6.1
  |http://search.maven.org/#artifactdetails%7Ccom.lucidworks.spark%7Cspark-solr%7C3.2.0%7Cjar[3.2.0]  | 2.2.0 | 6.6.0
  