NAME¶

Write Flags -

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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