[teiid-issues] [JBoss JIRA] (TEIID-3134) Impala sorting Issue

[Steven Hawkins (JIRA)]

    [ https://issues.jboss.org/browse/TEIID-3134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13014847#comment-13014847 ] 

Steven Hawkins commented on TEIID-3134:
---------------------------------------

There is a code change that is applicable.  We can set the source's default null ordering and Teiid will compensate appropriately.  Do you know the actual ordering impala uses - high, low, first, last?

> Impala sorting Issue
> --------------------
>
>                 Key: TEIID-3134
>                 URL: https://issues.jboss.org/browse/TEIID-3134
>             Project: Teiid
>          Issue Type: Bug
>          Components: Misc. Connectors
>    Affects Versions: 8.7.1
>            Reporter: Van Halbert
>
> String sorting of impala is inconsistent with our expectations:
> Impala sorting
> ---------------------------
> SELECT BQT1.SmallA.StringNum FROM BQT1.SmallA 
> Results
> 1: -1
> 2: -10
> 3: -11
> 4: -12
> 5: -13
> 6: -14
> 7: -15
> 8: -16
> 9: -17
> 10: -18
> 11: -19
> 12: -2
> 13: -20
> 14: -21
> 15: -22
> 16: -24
> 17: -3
> 18: -4
> 19: -5
> 20: -6
> 21: -8
> 22: -9
> 23: 0
> 24: 1
> 25: 10
> 26: 11
> 27: 12
> 28: 13
> 29: 14
> 30: 15
> 31: 16
> 32: 17
> 33: 18
> 34: 19
> 35: 2
> 36: 20
> 37: 21
> 38: 22
> 39: 23
> 40: 24
> 41: 3
> 42: 4
> 43: 5
> 44: 6
> 45: 7
> 46: 8
> 47: null
> 48: null
> 49: null
> 50: null
> Expected
> ---------------------------
> While we expect sorting to be consistent with other sources:
> 1: 0
> 2: 1
> 3: -1
> 4: 10
> 5: -10
> 6: 11
> 7: -11
> 8: 12
> 9: -12
> 10: 13
> 11: -13
> 12: 14
> 13: -14
> 14: 15
> 15: -15
> 16: 16
> 17: -16
> 18: 17
> 19: -17
> 20: 18
> 21: -18
> 22: 19
> 23: -19
> 24: 2
> 25: -2
> 26: 20
> 27: -20
> 28: 21
> 29: -21
> 30: 22
> 31: -22
> 32: 23
> 33: 24
> 34: -24
> 35: 3
> 36: -3
> 37: 4
> 38: -4
> 39: 5
> 40: -5
> 41: 6
> 42: -6
> 43: 7
> 44: 8
> 45: -8
> 46: -9
> 47: null
> 48: null
> 49: null
> 50: null



--
This message was sent by Atlassian JIRA
(v6.3.1#6329)