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mdbx: support for txnid of the last modification for sub-dbs/kv-spaces.

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Change-Id: Ifb6684df57608cda88aa9134b275f442358ff46d
This commit is contained in:
Leonid Yuriev
2019-10-25 13:51:21 +03:00
parent 64ecfe171a
commit 3ee269ddb6
3 changed files with 112 additions and 88 deletions
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mdbx.h
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@@ -1571,12 +1571,13 @@ LIBMDBX_API int mdbx_env_copy2fd(MDBX_env *env, mdbx_filehandle_t fd,
/* Statistics for a database in the environment */
typedef struct MDBX_stat {
uint32_t ms_psize; /* Size of a database page.
* This is currently the same for all databases. */
* This is the same for all databases. */
uint32_t ms_depth; /* Depth (height) of the B-tree */
uint64_t ms_branch_pages; /* Number of internal (non-leaf) pages */
uint64_t ms_leaf_pages; /* Number of leaf pages */
uint64_t ms_overflow_pages; /* Number of overflow pages */
uint64_t ms_entries; /* Number of data items */
uint64_t ms_mod_txnid; /* Transaction ID of commited last modification */
} MDBX_stat;
/* Return statistics about the MDBX environment.