Hi,
We see that null columns have writetime(column) populated for few columns and
shows null for few other. Is it any bug or something else?
CREATE KEYSPACE test WITH replication = {'class': 'NetworkTopologyStrategy',
'us-east': '2'} AND durable_writes = true;
CREATE TABLE test.t (
a text PRIMARY KEY,
b text
) WITH bloom_filter_fp_chance = 0.01
AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'}
AND comment = ''
AND compaction = {'class':
'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy',
'max_threshold': '32', 'min_threshold': '4'}
AND compression = {'chunk_length_in_kb': '64', 'class':
'org.apache.cassandra.io.compress.LZ4Compressor'}
AND crc_check_chance = 1.0
AND dclocal_read_repair_chance = 0.1
AND default_time_to_live = 0
AND gc_grace_seconds = 864000
AND max_index_interval = 2048
AND memtable_flush_period_in_ms = 0
AND min_index_interval = 128
AND read_repair_chance = 0.0
AND speculative_retry = '99PERCENTILE’;
insert into test.t (a ) values ('z’);
insert into test.t (a ) values ('w’);
insert into test.t (a ) values ('e’);
insert into test.t (a ) values ('r’);
insert into test.t (a ) values ('t’);
select a,b, writetime (b) from test.t ;
a | b | writetime(b)
---+------+------------------
z | null | null
a | null | null
c | null | null
e | null | null
r | null | null
d | null | 1500400745074499
w | null | 1500400745074499
v | null | 1500400745074499
t | null | 1500400745074499
x | y | 1500400626266371
