Cluster BTree index |
Longint |
3 |
B-Tree type index using clusters. This type of index is optimized when the index contains few keywords, i.e. when the same values occur frequently in the data. |
Default index type |
Longint |
0 |
4D specifies the index type (excluding keywords indexes) that is the most optimized according to the contents of the field. |
Keywords index |
Longint |
-1 |
Permits word-by-word indexing of field contents. This type of index can only be used with fields of the Text, Alpha or Picture type. Warning: Keywords indexes cannot be composite. |
Standard BTree index |
Longint |
1 |
Standard B-Tree type index. This multi-purpose index type is used in previous versions of 4D |