[
https://issues.apache.org/jira/browse/CASSANDRA-13547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16036632#comment-16036632
]
Krishna Dattu Koneru edited comment on CASSANDRA-13547 at 6/5/17 7:30 AM:
--------------------------------------------------------------------------
Seems related to https://issues.apache.org/jira/browse/CASSANDRA-13409 which
has a fix
[branch|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13409-3.11].
I ran above test on [commit |
https://github.com/jasonstack/cassandra/commit/26f3e7b96001f6148eab7cc3589b2d496c5830c5]
from this branch and it still fails.
I believe the reason for this
{code:title=tombstone|borderStyle=solid}
cqlsh> SELECT * FROM test.table1_mv2;
name | id | enabled | foo
------+----+---------+------
One | 1 | True | null
(1 rows)
{code}
is explained
[here|https://issues.apache.org/jira/browse/CASSANDRA-10261?focusedCommentId=14731266&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14731266]
and
[here|https://issues.apache.org/jira/browse/CASSANDRA-9664?focusedCommentId=14724150&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14724150].
was (Author: krishna.koneru):
Seems related to https://issues.apache.org/jira/browse/CASSANDRA-13409 which
has a fix
[branch|https://github.com/jasonstack/cassandra/commits/CASSANDRA-13409-3.11].
I ran above test on [commit |
https://github.com/jasonstack/cassandra/commit/26f3e7b96001f6148eab7cc3589b2d496c5830c5]
from this and it still fails.
I believe the reason for this
{code:title=tombstone|borderStyle=solid}
cqlsh> SELECT * FROM test.table1_mv2;
name | id | enabled | foo
------+----+---------+------
One | 1 | True | null
(1 rows)
{code}
is explained
[here|https://issues.apache.org/jira/browse/CASSANDRA-10261?focusedCommentId=14731266&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14731266]
and
[here|https://issues.apache.org/jira/browse/CASSANDRA-9664?focusedCommentId=14724150&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14724150].
> Filtered materialized views missing data
> ----------------------------------------
>
> Key: CASSANDRA-13547
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13547
> Project: Cassandra
> Issue Type: Bug
> Components: Materialized Views
> Environment: Official Cassandra 3.10 Docker image (ID 154b919bf8ce).
> Reporter: Craig Nicholson
> Assignee: Krishna Dattu Koneru
> Priority: Blocker
> Labels: materializedviews
> Fix For: 3.11.x
>
>
> When creating a materialized view against a base table the materialized view
> does not always reflect the correct data.
> Using the following test schema:
> {code:title=Schema|language=sql}
> DROP KEYSPACE IF EXISTS test;
> CREATE KEYSPACE test
> WITH REPLICATION = {
> 'class' : 'SimpleStrategy',
> 'replication_factor' : 1
> };
> CREATE TABLE test.table1 (
> id int,
> name text,
> enabled boolean,
> foo text,
> PRIMARY KEY (id, name));
> CREATE MATERIALIZED VIEW test.table1_mv1 AS SELECT id, name, foo
> FROM test.table1
> WHERE id IS NOT NULL
> AND name IS NOT NULL
> AND enabled = TRUE
> PRIMARY KEY ((name), id);
> CREATE MATERIALIZED VIEW test.table1_mv2 AS SELECT id, name, foo, enabled
> FROM test.table1
> WHERE id IS NOT NULL
> AND name IS NOT NULL
> AND enabled = TRUE
> PRIMARY KEY ((name), id);
> {code}
> When I insert a row into the base table the materialized views are updated
> appropriately. (+)
> {code:title=Insert row|language=sql}
> cqlsh> INSERT INTO test.table1 (id, name, enabled, foo) VALUES (1, 'One',
> TRUE, 'Bar');
> cqlsh> SELECT * FROM test.table1;
> id | name | enabled | foo
> ----+------+---------+-----
> 1 | One | True | Bar
> (1 rows)
> cqlsh> SELECT * FROM test.table1_mv1;
> name | id | foo
> ------+----+-----
> One | 1 | Bar
> (1 rows)
> cqlsh> SELECT * FROM test.table1_mv2;
> name | id | enabled | foo
> ------+----+---------+-----
> One | 1 | True | Bar
> (1 rows)
> {code}
> Updating the record in the base table and setting enabled to FALSE will
> filter the record from both materialized views. (+)
> {code:title=Disable the row|language=sql}
> cqlsh> UPDATE test.table1 SET enabled = FALSE WHERE id = 1 AND name = 'One';
> cqlsh> SELECT * FROM test.table1;
> id | name | enabled | foo
> ----+------+---------+-----
> 1 | One | False | Bar
> (1 rows)
> cqlsh> SELECT * FROM test.table1_mv1;
> name | id | foo
> ------+----+-----
> (0 rows)
> cqlsh> SELECT * FROM test.table1_mv2;
> name | id | enabled | foo
> ------+----+---------+-----
> (0 rows)
> {code}
> However a further update to the base table setting enabled to TRUE should
> include the record in both materialzed views, however only one view
> (table1_mv2) gets updated. (-)
> It appears that only the view (table1_mv2) that returns the filtered column
> (enabled) is updated. (-)
> Additionally columns that are not part of the partiion or clustering key are
> not updated. You can see that the foo column has a null value in table1_mv2.
> (-)
> {code:title=Enable the row|language=sql}
> cqlsh> UPDATE test.table1 SET enabled = TRUE WHERE id = 1 AND name = 'One';
> cqlsh> SELECT * FROM test.table1;
> id | name | enabled | foo
> ----+------+---------+-----
> 1 | One | True | Bar
> (1 rows)
> cqlsh> SELECT * FROM test.table1_mv1;
> name | id | foo
> ------+----+-----
> (0 rows)
> cqlsh> SELECT * FROM test.table1_mv2;
> name | id | enabled | foo
> ------+----+---------+------
> One | 1 | True | null
> (1 rows)
> {code}
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