The meta page, which holds metadata for Index file, is always first page of the btree index file and is cast to the following structure to store or retrieve information from it. Contains the relation name for which the index is created, the byte offset of the key value on which the index is made, the type of the key and the page no of the root page. Root page starts as page 2 but since a split can occur at the root the root page may get moved up and get a new page no. More...

#include <btree.h>

Public Attributes
char	relationName [20]
int	attrByteOffset
Datatype	attrType
PageId	rootPageNo

Detailed Description

The meta page, which holds metadata for Index file, is always first page of the btree index file and is cast to the following structure to store or retrieve information from it. Contains the relation name for which the index is created, the byte offset of the key value on which the index is made, the type of the key and the page no of the root page. Root page starts as page 2 but since a split can occur at the root the root page may get moved up and get a new page no.

Definition at line 137 of file btree.h.