[PHOENIX-3442] Support null when columns have default values for immutable tables with encoding scheme COLUMNS_STORED_IN_SINGLE_CELL

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Assignee: Thomas D'Silva
• Reporter: Samarth Jain
• Created: 03/Nov/16 22:59
• Updated: 06/Dec/16 20:55
• Resolved: 06/Dec/16 20:55

Description

Comments from jamestaylor:

The way we differentiate a null value now is by the value being an empty byte array (explicitly set to null) versus not being present (in which case we use the default value).
This is encapsulated in the DefaultValueExpression.
We'll need to tweak our encoding for this.
One way would be to use a negative number for the offset.