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Step 1: Update a column with null value.

Upsert into abc.tablename (Rowkeycombo1, Rowkeycombo2, columnname) values (123,to_date('1988-08-06'),null);

This works fine and the column then appears to have no data while doing a select.

Step 2:Update the same column with a valid value.

Upsert into abc.tablename (Rowkeycombo1, Rowkeycombo2, columnname) values (123,to_date('1988-08-06'),'TRYVAL');

Shows 1 row affected but the column still appears null/empty.

However there is no issue while updating a column which has a valid value to any other value.

I'm using a Phoenix server to query an Hbase DB and I'm new to both of this.

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