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LocalFileSystem Not sorted by file name， As a result, the data lines queried in multiple files are out of order. #2730

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yourenawo opened this issue Jun 14, 2022 · 2 comments · Fixed by #2735
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LocalFileSystem Not sorted by file name， As a result, the data lines queried in multiple files are out of order. #2730

yourenawo opened this issue Jun 14, 2022 · 2 comments · Fixed by #2735
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@yourenawo
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Describe the bug
the data lines queried in multiple files are out of order.
@yourenawo yourenawo added the bug Something isn't working label Jun 14, 2022
@yourenawo yourenawo mentioned this issue Jun 15, 2022
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@bi-kai
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bi-kai commented Jun 15, 2022

save issue like this, multi parquet files in a folder, the results are not in the sequence.

@andygrove
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Partitions are processed in parallel on multiple threads so DataFusion cannot provide any guarantee of ordering of results unless the query contains an ORDER BY clause.

alamb pushed a commit that referenced this issue Jun 16, 2022
@yourenawo
Sort file names in a directory #2730 (#2735)
0e416f0 
* Update local.rs

* Update local.rs

* Update local.rs

Added a test case for sorting directories.
waynexia pushed a commit to waynexia/arrow-datafusion that referenced this issue Jun 20, 2022
@yourenawo @waynexia
Sort file names in a directory apache#2730 (apache#2735)
28352fd 
* Update local.rs

* Update local.rs

* Update local.rs

Added a test case for sorting directories.
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Sort file names in a directory #2730 yourenawo/arrow-datafusion
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@andygrove @bi-kai @yourenawo