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mdb_put(3) Library Functions Manual mdb_put(3)

NAME

mdb_put

SYNOPSIS

Macros


#define MDB_NOOVERWRITE 0x10
#define MDB_NODUPDATA 0x20
#define MDB_CURRENT 0x40
#define MDB_RESERVE 0x10000
#define MDB_APPEND 0x20000
#define MDB_APPENDDUP 0x40000
#define MDB_MULTIPLE 0x80000

Detailed Description

Macro Definition Documentation

#define MDB_NOOVERWRITE 0x10

For put: Don't write if the key already exists.

#define MDB_NODUPDATA 0x20

Only for MDB_DUPSORT For put: don't write if the key and data pair already exist. For mdb_cursor_del: remove all duplicate data items.

#define MDB_CURRENT 0x40

For mdb_cursor_put: overwrite the current key/data pair

#define MDB_RESERVE 0x10000

For put: Just reserve space for data, don't copy it. Return a pointer to the reserved space.

#define MDB_APPEND 0x20000

Data is being appended, don't split full pages.

#define MDB_APPENDDUP 0x40000

Duplicate data is being appended, don't split full pages.

#define MDB_MULTIPLE 0x80000

Store multiple data items in one call. Only for MDB_DUPFIXED.

Author

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Mon Jul 16 2018 LMDB