yahoNanJing opened a new pull request #2065:
URL: https://github.com/apache/arrow-datafusion/pull/2065
# Which issue does this PR close?
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Closes #1772.
# Rationale for this change
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the issue then this section is not needed.
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By splitting the object store into a separate module, the object stores in
datafusion-contrib no longer need to depend on the whole datafusion crate. They
only need to depend on this separated module. What's more, if we hope to
introduce the object stores in datafusion-contrib as some featuers in the
datafusion crate, the issue of dependency cyclic can be avoided.
# What changes are included in this PR?
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- Introduces a new crate datafusion-storage for object store interfaces.
- Moves the object store in previous datasource mod into this new
datafusion-storage crate.
# Are there any user-facing changes?
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