[TAJO-994] 'count(distinct x)' function counts first null value.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: Function/UDF
• Assignee: Hyunsik Choi
• Reporter: Hyunsik Choi
• Created: 05/Aug/14 09:43
• Updated: 11/Aug/14 03:54
• Resolved: 11/Aug/14 02:24

Description

The current count distinct function counts the first null value. Consider the following example column. The current count distinct function will count them as 4 instead of 3. We should fix it.

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A
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B
C