tree 31cbdca3388502199979267142ac547f6125e24f
parent ae76544efc2731acb3f1ab401ffa1a35c02f57d6
author Yong Tang <yong.tang.github@outlook.com> 1588561076 +0000
committer Yong Tang <yong.tang.github@outlook.com> 1588600779 +0000

Add cardinality calculation for Dataset.unbatch() when possible

This PR tries to address the issue raised in 39136 where cardinality
of Dataset.unbatch() was always UNKNOWN, even if it might be known
in certain situations.

This PR add the cardinality calculation in case the input cardinality
is known and the leading dim of the output shape is known.

This PR fixes 39136.

Signed-off-by: Yong Tang <yong.tang.github@outlook.com>