CONTEXT Index Parameters

The following default parameters are used when you create a CONTEXT index and do not specify preferences in the parameter clause of CREATE INDEX. Each default parameter names a system-defined preference to use for data storage, filtering, lexing, and so on.

Table 46 Default CONTEXT Index Parameters

Parameter	Used When	Default Value
DEFAULT_DATASTORE	No datastore preference specified in parameter clause of CREATE INDEX.	CTXSYS.DEFAULT_DATASTORE
DEFAULT_FILTER_FILE	No filter preference specified in parameter clause of CREATE INDEX, and either of the following conditions is true: Your files are stored in external files (BFILES) or Specify a datastore preference that uses FILE_DATASTORE	CTXSYS.AUTO_FILTER
DEFAULT_FILTER_BINARY	No filter preference specified in parameter clause of CREATE INDEX, and Oracle Text detects that the text column datatype is RAW, LONG RAW, or BLOB.	CTXSYS.AUTO_FILTER
DEFAULT_FILTER_TEXT	No filter preference specified in parameter clause of CREATE INDEX, and Oracle Text detects that the text column datatype is either LONG, VARCHAR2, VARCHAR, CHAR, or CLOB.	CTXSYS.NULL_FILTER
DEFAULT_SECTION_HTML	No section group specified in parameter clause of CREATE INDEX, and when either of the following conditions is true: Your datastore preference uses URL_DATASTORE or Your filter preference uses AUTO_FILTER.	CTXSYS.HTML_SECTION_GROUP
DEFAULT_SECTION_TEXT	No section group specified in parameter clause of CREATE INDEX, and when you do not use either URL_DATASTORE or AUTO_FILTER.	CTXSYS.NULL_SECTION_GROUP
DEFAULT_STORAGE	No storage preference specified in parameter clause of CREATE INDEX.	CTXSYS.DEFAULT_STORAGE
DEFAULT_LEXER	No lexer preference specified in parameter clause of CREATE INDEX.	CTXSYS.DERAULT_LEXER
DEFAULT_STOPLIST	No stoplist specified in parameter clause of CREATE INDEX.	CTXSYS.DEFAULT_STOPLIST
DEFAULT_WORDLIST	No wordlist preference specified in parameter clause of CREATE INDEX.	CTXSYS.DEFAULT_WORDLIST

See Also: “System-Defined Preferences”