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Re: IN restrictions are not supported on indexed columns


Thanks Benjamin! Create a jira for it:
https://issues.apache.org/jira/browse/CASSANDRA-14344

On Fri, Mar 23, 2018 at 10:27 AM, Benjamin Lerer <
benjamin.lerer@xxxxxxxxxxxx> wrote:

> There are not real blocker I believe. It is just that we never implemented
> it.
>
> On Fri, Mar 23, 2018 at 6:08 PM, Dikang Gu <dikang85@xxxxxxxxx> wrote:
>
> > Hello C* developers:
> >
> > I have one question, does anyone know why we can not support the IN
> > restrictions on indexed columns? Is it just because no one is working it?
> > Or are there any other reasons?
> >
> > Below is an example query:
> > ====
> >
> > cqlsh:ks1> describe keyspace;
> >
> > CREATE KEYSPACE ks1 WITH replication = {'class': 'SimpleStrategy',
> > 'replication_factor': '1'}  AND durable_writes = true;
> >
> > CREATE TABLE ks1.t1 (
> >     key int,
> >     col1 int,
> >     col2 int,
> >     value int,
> >     PRIMARY KEY (key, col1, col2)
> > ) WITH CLUSTERING ORDER BY (col1 ASC, col2 ASC)
> >     AND 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';
> >
> > cqlsh:ks1> select * from t1 where key = 1 and col2 in (1) allow
> filtering;
> >
> >  key | col1 | col2 | value
> > -----+------+------+-------
> >    1 |    1 |    1 |     1
> >    1 |    2 |    1 |     3
> >
> > (2 rows)
> > cqlsh:ks1> select * from t1 where key = 1 and col2 in (1, 2) allow
> > filtering;
> > *InvalidRequest: Error from server: code=2200 [Invalid query] message="IN
> > restrictions are not supported on indexed columns"*
> > cqlsh:ks1>
> > =====
> >
> > Thanks
> >
> >
> > --
> > Dikang
> >
>



-- 
Dikang