|
|
DBsight 2.0.4 (Upgrade branch)
11-10-2008
DBSight is a J2EE search platform for instantscalable full-text search on any relationaldatabase, for both beginners and experts. Itfeatures a built-in database crawler followinguser-defined SQL, incremental indexing,user-controllable result ranking, the ability toreturn results with highlights (like Google), andcategorized result counts (like Amazon). It caneasily integrate with other languages withXML/JSON/HTML. There is a UI for all operations,so no Java coding is necessary. Deleted or updatedrecords in database can be synchronized also.License: Freely DistributableChanges:|
|
CREATE TEXT SEARCH
PARSER(7) SQL Commands CREATE TEXT SEARCH PARSER(7) NAME
CREATE TEXT SEARCH PARSER - define a new text search parser SYNOPSIS
CREATE TEXT SEARCH PARSER name ( START = start_function , GETTOKEN = gettoken_function , END = end_function , LEXTYPES = lextypes_function [, HEADLINE = headline_function ] ) DESCRIPTION
CREATE TEXT SEARCH PARSER creates a new text search parser. A text search parser defines a method for splitting a text string into tokens and assigning types (categories) to the tokens. A parser is not particularly useful by itself, but must be bound into a text search con- figuration along with some text search dictionaries to be used for searching. If a schema name is given then the text search parser is created in the specified schema. Otherwise it is created in the current schema. You must be a superuser to use CREATE TEXT SEARCH PARSER. (This restriction is made because an erroneous text search parser definition could confuse or even crash the server.) Refer to in the documentation for further information. PARAMETERS
name The name of the text search parser to be created. The name can be schema-qualified. start_function The name of the start function for the parser. gettoken_function The name of the get-next-token function for the parser. end_function The name of the end function for the parser. lextypes_function The name of the lextypes function for the parser (a function that returns information about the set of token types it produces). headline_function The name of the headline function for the parser (a function that summarizes a set of tokens). The function names can be schema-qualified if necessary. Argument types are not given, since the argument list for each type of function is predetermined. All except the headline function are required. The arguments can appear in any order, not only the one shown above. COMPATIBILITY
There is no CREATE TEXT SEARCH PARSER statement in the SQL standard. SEE ALSO
ALTER TEXT SEARCH PARSER [alter_text_search_parser(7)], DROP TEXT SEARCH PARSER [drop_text_search_parser(7)] SQL - Language Statements 2010-05-14 CREATE TEXT SEARCH PARSER(7)