Search Characters

This chapter describes the semantics of matching search queries to result text.

About search characters
The Oracle Endeca Server supports configurable handling of punctuation and other non-alphanumeric characters in search queries.
Implementing search characters
Search indexing distinguishes between alphanumeric characters and non-alphanumeric characters, and supports the ability to mark some non-alphanumeric characters as significant for search operations.
Query matching semantics
The semantics of matching search queries to text containing special non-alphanumeric characters in the Oracle Endeca Sever is based on indexing various forms of source text containing such characters.
Search query processing
The semantics of matching search query terms to result text containing non-alphanumeric characters are described in this topic.
Dgraph flags for search characters
There are no Dgraph process flags necessary to enable the search characters feature. The Oracle Endeca Server automatically detects the additional search characters.
Performance impact of setting search characters
Implementing search characters is an operation that changes the attribute on the GCR, and thus is a configuration change. If you issue this operation in an empty data domain, it runs quickly. If you issue this operation on an index with a large number of existing records using the Configuration Web Service, the processing of this operation can have performance impact largely caused by re-indexing.