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[hail] optimizer breaks correctness of scans #6408

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danking opened this issue Jun 19, 2019 · 0 comments

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@danking
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commented Jun 19, 2019

Actual behavior:

In [6]: import hail as hl
   ...: ht = hl.utils.range_table(1000, n_partitions=100)
   ...: ht = ht.annotate(rank = hl.scan.count())
   ...: ht = hl.filter_intervals(ht, [hl.interval(990, 1000)])
   ...: ht.show()
2019-06-19 18:03:40 Hail: INFO: reading 1 of 100 data partitions
+-------+-------+
|   idx |  rank |
+-------+-------+
| int32 | int64 |
+-------+-------+
|   990 |     0 |
|   991 |     1 |
|   992 |     2 |
|   993 |     3 |
|   994 |     4 |
|   995 |     5 |
|   996 |     6 |
|   997 |     7 |
|   998 |     8 |
|   999 |     9 |
+-------+-------+

Expected behavior:

In [6]: import hail as hl
   ...: ht = hl.utils.range_table(1000, n_partitions=100)
   ...: ht = ht.annotate(rank = hl.scan.count())
   ...: ht = hl.filter_intervals(ht, [hl.interval(990, 1000)])
   ...: ht.show()
+-------+-------+
|   idx |  rank |
+-------+-------+
| int32 | int64 |
+-------+-------+
|   990 |   990 |
|   991 |   991 |
|   992 |   992 |
|   993 |   993 |
|   994 |   994 |
|   995 |   995 |
|   996 |   996 |
|   997 |   997 |
|   998 |   998 |
|   999 |   999 |
+-------+-------+
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