Jaroslav Kamenik created CASSANDRA-11805: --------------------------------------------
Summary: Row deleted when value updated to null Key: CASSANDRA-11805 URL: https://issues.apache.org/jira/browse/CASSANDRA-11805 Project: Cassandra Issue Type: Bug Components: Core Environment: C* 3.5, both single node and cluster Reporter: Jaroslav Kamenik Priority: Critical It seems that the behaviour of the value update to null differs when row is created by insert or update. When it is inserted the row stays and the value is null, when updated the row is deleted. Simple example: Inserts: create table aaa (a ascii, b ascii, c ascii, primary key (a,b)); insert into aaa (a,b,c) values ('a','b','c'); insert into aaa (a,b,c) values ('a','c','d'); insert into aaa (a,b,c) values ('a','d','e'); select * from aaa; a | b | c ---+---+--- a | b | c a | c | d a | d | e update aaa set c = null where a='a' and b='b'; select * from aaa; a | b | c ---+---+------ a | b | null a | c | d a | d | e Updates: create table bbb (a ascii, b ascii, c ascii, primary key (a,b)); update bbb set c = 'c' where a='a' and b='b'; update bbb set c = 'd' where a='a' and b='c'; update bbb set c = 'e' where a='a' and b='d'; select * from bbb; a | b | c ---+---+--- a | b | c a | c | d a | d | e update bbb set c = null where a='a' and b='b'; select * from bbb; a | b | c ---+---+--- a | c | d a | d | e -- This message was sent by Atlassian JIRA (v6.3.4#6332)