Common options that fields can have are...
 
default
The default value for this field if none is provided while adding documents
 
indexed=true|false
True if this field should be "indexed". If (and only if) a field is indexed, then it is searchable, sortable, and facetable.
 
stored=true|false
True
 
 if the value of the field should be retrievable during a search, or if you're using highlighting or MoreLikeThis.
 
compressed=true|false
True if this field should be stored using gzip compression. (This will only apply if the field type is compressible; among the standard field types, only TextField and StrField are.)
 
compressThreshold=<integer>
 
multiValued=true|false
True if this field may contain multiple values per document, i.e. if it can appear multiple times in a document
 
omitNorms=true|false
This is arguably an advanced option.
Set to true to omit the norms associated with this field (this disables length normalization and index-time boosting for the field, and saves some memory). Only full-text fields or fields that need an index-time boost need norms.
 
termVectors=false|true <?> Solr 1.1
If set, include full term vector info.
If enabled, often also used with termPositions="true" and termOffsets="true".
To use interactively, requires TermVectorComponent
Corresponds to TV button in Luke, and V field attribute.
 
omitTermFreqAndPositions=true|false <!> Solr1.4
If set, omit term freq, positions and payloads from postings for this field. This can be a performance boost for fields that don'
 
t require that information and reduces storage space required for the index. Queries that rely on position that are issued on a field with this option fail with an exception. Prior to <!> Solr4.0 the queries would silently fail to find documents.
 
omitPositions=true|false <!> Solr3.4
If set, omits positions, but keeps term frequencies