Creates a dataset that emits the key-value pairs in one or more LMDB files.
tf.raw_ops.LMDBDataset(
filenames, output_types, output_shapes, name=None
)
The Lightning Memory-Mapped Database Manager, or LMDB, is an embedded binary
key-value database. This dataset can read the contents of LMDB database files,
the names of which generally have the .mdb suffix.
Each output element consists of a key-value pair represented as a pair of
scalar string Tensors, where the first Tensor contains the key and the
second Tensor contains the value.
LMDB uses different file formats on big- and little-endian machines.
LMDBDataset can only read files in the format of the host machine.
Args | |
|---|---|
filenames
|
A Tensor of type string.
A scalar or a vector containing the name(s) of the binary file(s) to be
read.
|
output_types
|
A list of tf.DTypes that has length >= 1.
|
output_shapes
|
A list of shapes (each a tf.TensorShape or list of ints) that has length >= 1.
|
name
|
A name for the operation (optional). |
Returns | |
|---|---|
A Tensor of type variant.
|