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RECBYT indexRECBYT indices were introduced in the c-tree Plus ISAM API to provide improved space management for variable length records in a table and to permit backward physical traversal of data files that contain resources and variable length records. A RECBYT index is an index based on the byte offset (recbyt) of the record being indexed. RECBYT indices are optional and the user can disable their creation by specifying the CTCREATE_NORECBYT when a table is created. When a table is created with RECBYT index support, a RECBYT index is automatically created for the table. The operations on the RECBYT index are transparent to the user. c-treeDB will automatically update the index entries. The RECBYT index will not appear in the list of indices for a table. The user cannot alter or delete the components of the RECBYT index. The use of RECBYT index has no impact on the fields in the record buffer of a table. There is no field associated with this index. |
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