Return an Hash with the fields (description for
4.0.14)
- hash_magic : Magic number that identifies the file as a Hash file.
- hash_version : The version of the Hash database.
- hash_nkeys : The number of unique keys in the database.
- hash_ndata : The number of key/data pairs in the database.
- hash_pagesize : The underlying Hash database page
(and bucket) size, in bytes.
- hash_nelem : The estimated size of the hash table specified at
database-creation time.
- hash_ffactor : The desired fill factor (number of items per bucket)
specified at database-creation time.
- hash_buckets : The number of hash buckets.
- hash_free : The number of pages on the free list.
- hash_bfree :The number of bytes free on bucket pages.
- hash_bigpages : The number of big key/data pages.
- hash_big_bfree : The number of bytes free on big item pages.
- hash_overflows : The number of overflow pages
- hash_ovfl_free : The number of bytes free on overflow pages.
- hash_dup : The number of duplicate pages.
- hash_dup_free : The number of bytes free on duplicate pages.