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https://issues.apache.org/jira/browse/CASSANDRA-15042?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
William Preston updated CASSANDRA-15042:
----------------------------------------
Description:
Cassandra 3.11.4
Running a query in cqlsh with TRACING ON
Secondary indexes all report cardinalities as *1*.
trace output:
{code:java}
Index mean cardinalities are
country_idx:1,company_idx:1,source_idx:1,domain_idx:1. Scanning with
country_idx.
{code}
Cassandra 2.2.x and its' predecessors reported cardinalities > 1 in cqlsh
tracing output:
"Candidate index mean cardinalities are
CompositesIndexOnRegular{columnDefs=[ColumnDefinition
{name=country, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
componentIndex=0, indexName=country_idx, indexType=COMPOSITES}
]}:*+2+*, CompositesIndexOnRegular{columnDefs=[ColumnDefinition
{name=company, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
componentIndex=0, indexName=company_idx, indexType=COMPOSITES}
]}:*+1210+*, CompositesIndexOnRegular{columnDefs=[ColumnDefinition
{name=source, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
componentIndex=0, indexName=source_idx, indexType=COMPOSITES}
]}:*+501804+*, CompositesIndexOnRegular{columnDefs=[ColumnDefinition
{name=domain, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
componentIndex=0, indexName=domain, indexType=COMPOSITES}
]}:*+325801+*.
Scanning with country_idx."
was:
Cassandra 3.11.4
Running a query in cqlsh with TRACING ON
Secondary indexes all report cardinalities as *1*.
trace output: "Index mean cardinalities are
country_idx:+*1*+,company_idx:_*1*_,source_idx:+*1*+,domain_idx:+*1*+. Scanning
with country_idx."
Cassandra 2.2.x and its' predecessors reported cardinalities > 1 in cqlsh
tracing output:
"Candidate index mean cardinalities are
CompositesIndexOnRegular\{columnDefs=[ColumnDefinition{name=country,
type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR, componentIndex=0,
indexName=country_idx, indexType=COMPOSITES}]}:*+2+*,
CompositesIndexOnRegular\{columnDefs=[ColumnDefinition{name=company,
type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR, componentIndex=0,
indexName=company_idx, indexType=COMPOSITES}]}:*+1210+*,
CompositesIndexOnRegular\{columnDefs=[ColumnDefinition{name=source,
type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR, componentIndex=0,
indexName=source_idx, indexType=COMPOSITES}]}:*+501804+*,
CompositesIndexOnRegular\{columnDefs=[ColumnDefinition{name=domain,
type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR, componentIndex=0,
indexName=domain, indexType=COMPOSITES}]}:*+325801+*.
Scanning with country_idx."
> cqlsh tracing output reports all secondary "Index mean cardinalities" are 1.
> -----------------------------------------------------------------------------
>
> Key: CASSANDRA-15042
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15042
> Project: Cassandra
> Issue Type: Bug
> Components: Legacy/Tools
> Reporter: William Preston
> Priority: Minor
>
> Cassandra 3.11.4
> Running a query in cqlsh with TRACING ON
> Secondary indexes all report cardinalities as *1*.
> trace output:
> {code:java}
> Index mean cardinalities are
> country_idx:1,company_idx:1,source_idx:1,domain_idx:1. Scanning with
> country_idx.
> {code}
> Cassandra 2.2.x and its' predecessors reported cardinalities > 1 in cqlsh
> tracing output:
> "Candidate index mean cardinalities are
> CompositesIndexOnRegular{columnDefs=[ColumnDefinition
> {name=country, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
> componentIndex=0, indexName=country_idx, indexType=COMPOSITES}
> ]}:*+2+*, CompositesIndexOnRegular{columnDefs=[ColumnDefinition
> {name=company, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
> componentIndex=0, indexName=company_idx, indexType=COMPOSITES}
> ]}:*+1210+*, CompositesIndexOnRegular{columnDefs=[ColumnDefinition
> {name=source, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
> componentIndex=0, indexName=source_idx, indexType=COMPOSITES}
> ]}:*+501804+*, CompositesIndexOnRegular{columnDefs=[ColumnDefinition
> {name=domain, type=org.apache.cassandra.db.marshal.UTF8Type, kind=REGULAR,
> componentIndex=0, indexName=domain, indexType=COMPOSITES}
> ]}:*+325801+*.
> Scanning with country_idx."
>
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