JET_UNICODEINDEX Structure
Last modified: March 09, 2015
Applies to: Windows | Windows Server
The JET_UNICODEINDEX structure customizes how Unicode data gets normalized when an index is created over a Unicode column.
typedef struct tagJET_UNICODEINDEX {
unsigned long lcid;
unsigned long dwMapFlags;
} JET_UNICODEINDEX;
Members
lcid
The Locale ID to use when normalizing the data. Any locale may be used as long as the appropriate language pack has been installed on the machine. The one exception is that the Language Neutral locale (LCID of zero) is illegal.
dwMapFlags
These flags get passed to LCMapString when Unicode data gets normalized to a key, which enables user-defined flags to override the default.
Windows 2000: The only two legal values for dwFlags are:
( LCMAP_SORTKEY | NORM_IGNORECASE | NORM_IGNOREKANATYPE | NORM_IGNOREWIDTH | NORM_IGNORENONSPACE )
( LCMAP_SORTKEY | NORM_IGNORECASE | NORM_IGNOREKANATYPE | NORM_IGNOREWIDTH )
dwMapFlags has the following restrictions.
Value | Meaning |
|---|---|
LCMAP_SORTKEY | Mandatory. |
LCMAP_BYTEREV | Optional. |
NORM_IGNORECASE | Optional. |
NORM_IGNORENONSPACE | Optional. |
NORM_IGNORESYMBOLS | Optional. |
NORM_IGNOREKANATYPE | Optional. |
NORM_IGNOREWIDTH | Optional. |
SORT_STRINGSORT | Optional. |
Requirements
Client | Requires Windows Vista, Windows XP, or Windows 2000 Professional. |
Server | Requires Windows Server 2008, Windows Server 2003, or Windows 2000 Server. |
Header | Declared in Esent.h. |