Schema.xml of SOLR configuration files

Schema.xmlThe fundamental purpose of this configuration file is to tell SOLR how to build the index through configuration.
the data structure of SOLR is as follows:

• Document: A file, a record
  • Field: domain, attribute

SOLR returns a number of eligible document by searching for some or some field, or by searching for the score sort. When compared to a database, document is equivalent to a table in a database, and field is the equivalent of a table. The schema.xml is to define the structure of a table (defining the names, types, constraints, and so on) of each field.
the basic structure of Schema.xml is as follows:<schema> <types> <fields> <uniqueKey> <copyField></schema>
Common Configuration instructions:

• Field: Defines the fields in a document
  • name: Required. The name of the field. Names that are underlined before and after are the name of the system reservation, such as "_version_"
  • type: Required. Type, corresponding to the name of the FieldType
  • Default: The field defaults
  • indexed: True/false, whether to index the field so that the user can search for it and count it (facet)
  • stored: true/false, defines whether this field can be returned to the queried person
  • multivalued: true/false, whether multiple values can be accommodated (such as multiple Copyfield dest point to it). If true, the field cannot be sorted and cannot be used as a uniquekey
  • Required: True/false, Tell SOLR if this field accepts null values, the default is False
  • docvalues: true/false, establishing Document-to-value Index to improve the efficiency of some special searches (sorting, statistics, highlighting)
• Copyfield: Copy the contents of one field to another field. Typically used to copy several different field to the same field to facilitate a search of only one field
  • Source: The field being copied, supports specifying multiple fields with wildcards, such as: *_name
  • dest: Copy to the destination field
  • maxchars: Maximum number of characters
• uniquekey: Specify a field as a unique index
• FieldType: Defines the type of field, including some of the following properties
  • name: Required, used by field configuration
  • Class : Required, Filedtype implementation class. Solr. TextField is the path abbreviation, "equivalent to " Org.apache.solr.schema.TextField "
  • Multivalued:?
  • positionincrementgap: Specify the distance of the mutivalued
  • Ananlyzer : If class is SOLR. TextField, this configuration is required. Tell Solr how to deal with certain words, how to participle, such as to remove the "a", not all lowercase ...
    • type : index or query
    • tokenizer : Word breaker, for example: Standardtokenizerfactory
    • filter : Filter, For example: Lowercasefilterfactory
• DynamicField: Use wildcard characters to define a field to exist without being defined by field
  • name: Use wildcard characters, such as "*_i", to handle field like "Cost_i"

Schema information can be obtained via HTTP API: Http://<ip>:8983/solr/<collection>/schema?wt=json
Http://<ip>:8983/solr/<collection>/schema/fields?wt=jsonhttp://<ip>:8983/solr/<collection >/schema/dynamicfields?wt=json
Http://<ip>:8983/solr/<collection>/schema/copyfields?wt=json

(original article, reprint please specify the blog from Clement-xu)

Copyright NOTICE: This article is the original article, reprint please indicate the CSDN blog which is transferred from Clement-xu.

Schema.xml of SOLR configuration files