Add a ShardDatasetBuilder that creates shards directly. #5605
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In certain cases, users have data available in different shards and they want to keep the same number of shards and in each shard the same order of examples (or they don't care about the ordering). In that case, our current dataset builder classes are much slower than necessary. The `ShardBasedBuilder` allows users to create dataset builders that process source data shard by shard. It can be run with or without Beam. In case of Beam, the resulting Beam pipeline is significantly simpler and therefore faster. PiperOrigin-RevId: 676820294
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Add a ShardDatasetBuilder that creates shards directly.
In certain cases, users have data available in different shards and they want to keep the same number of shards and in each shard the same order of examples (or they don't care about the ordering). In that case, our current dataset builder classes are much slower than necessary.
The
ShardBasedBuilderallows users to create dataset builders that process source data shard by shard. It can be run with or without Beam. In case of Beam, the resulting Beam pipeline is significantly simpler and therefore faster.