Gopal Vijayaraghavan created ORC-629:
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Summary: PPD: Floating point NaN is not transitive across
comparisons
Key: ORC-629
URL: https://issues.apache.org/jira/browse/ORC-629
Project: ORC
Issue Type: Bug
Reporter: Gopal Vijayaraghavan
Range comparisons don't work right for columns which start with Double.NaN as
the first row (min == max == NaN).
1 < NaN is false.
1 > NaN is false.
{code}
File Version: 0.12 with ORC_135
Rows: 3
Compression: ZLIB
Compression size: 32768
Type:
struct<operation:int,originalTransaction:bigint,bucket:int,rowId:bigint,currentTransaction:bigint,row:struct<c:double>>
Stripe Statistics:
Stripe 1:
Column 0: count: 3 hasNull: false
Column 1: count: 3 hasNull: false bytesOnDisk: 5 min: 0 max: 0 sum: 0
Column 2: count: 3 hasNull: false bytesOnDisk: 5 min: 1 max: 1 sum: 3
Column 3: count: 3 hasNull: false bytesOnDisk: 8 min: 536870912 max:
536870912 sum: 1610612736
Column 4: count: 3 hasNull: false bytesOnDisk: 7 min: 0 max: 2 sum: 3
Column 5: count: 3 hasNull: false bytesOnDisk: 5 min: 1 max: 1 sum: 3
Column 6: count: 3 hasNull: false
Column 7: count: 3 hasNull: false bytesOnDisk: 19 min: NaN max: NaN sum: NaN
{code}
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