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MDB_MAXKEYSIZE = 0 (dynamic value) when MDB_DEVEL

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Hallvard Furuseth 2014-07-09 20:18:08 +02:00 committed by Hallvard Furuseth
parent b3dedde612
commit 2825ad64c2
1 changed files with 2 additions and 1 deletions
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3
libraries/liblmdb/mdb.c
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@ -427,13 +427,14 @@ static txnid_t mdb_debug_start;
* Define this as 0 to compute the max from the page size. 511
* is default for backwards compat: liblmdb <= 0.9.10 can break
* when modifying a DB with keys/dupsort data bigger than its max.
* #MDB_DEVEL sets the default to 0.
*
* Data items in an #MDB_DUPSORT database are also limited to
* this size, since they're actually keys of a sub-DB. Keys and
* #MDB_DUPSORT data items must fit on a node in a regular page.
*/
#ifndef MDB_MAXKEYSIZE
#define MDB_MAXKEYSIZE 511
#define MDB_MAXKEYSIZE ((MDB_DEVEL) ? 0 : 511)
#endif
/** The maximum size of a key we can write to the environment. */