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https://issues.apache.org/jira/browse/CASSANDRA-19566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17838150#comment-17838150
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Stefan Miklosovic commented on CASSANDRA-19566:
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Does it also happen when ts is not negative value?
> JSON encoded timestamp value does not always match non-JSON encoded value
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-19566
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19566
> Project: Cassandra
> Issue Type: Bug
> Reporter: Bowen Song
> Priority: Normal
>
> Description:
> "SELECT JSON ..." and "toJson(...)" on Cassandra 4.1.4 produces different
> date than "SELECT ..." for some timestamp type values.
>
> Steps to reproduce:
> {code:java}
> $ sudo docker pull cassandra:4.1.4
> $ sudo docker create --name cass cassandra:4.1.4
> $ sudo docker start cass
> $ # wait for the Cassandra instance becomes ready
> $ sudo docker exec -ti cass cqlsh
> Connected to Test Cluster at 127.0.0.1:9042
> [cqlsh 6.1.0 | Cassandra 4.1.4 | CQL spec 3.4.6 | Native protocol v5]
> Use HELP for help.
> cqlsh> create keyspace test WITH replication = {'class': 'SimpleStrategy',
> 'replication_factor': 1};
> cqlsh> use test;
> cqlsh:test> create table tbl (id int, ts timestamp, primary key (id));
> cqlsh:test> insert into tbl (id, ts) values (1, -13767019200000);
> cqlsh:test> select tounixtimestamp(ts), ts, tojson(ts) from tbl where id=1;
> system.tounixtimestamp(ts) | ts |
> system.tojson(ts)
> ----------------------------+---------------------------------+----------------------------
> -13767019200000 | 1533-09-28 12:00:00.000000+0000 | "1533-09-18
> 12:00:00.000Z"
> (1 rows)
> cqlsh:test> select json * from tbl where id=1;
> [json]
> ---------------------------------------------
> {"id": 1, "ts": "1533-09-18 12:00:00.000Z"}
> (1 rows)
> {code}
>
> Expected behaviour:
> The "select ts", "select tojson(ts)" and "select json *" should all produce
> the same date.
>
> Actual behaviour:
> The "select ts" produced the "1533-09-28" date but the "select tojson(ts)"
> and "select json *" produced the "1533-09-18" date.
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