Lex Lythius created CASSANDRA-8425:
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Summary: Add full entry indexing capability for maps
Key: CASSANDRA-8425
URL: https://issues.apache.org/jira/browse/CASSANDRA-8425
Project: Cassandra
Issue Type: Improvement
Components: Core
Reporter: Lex Lythius
Priority: Minor
Since C* 2.1 we're able to index map keys or map values and query them using
{{CONTAINS KEY}} and {{CONTAINS}} respectively.
However, some use cases require being able to filter for specific key/value
combination. Syntax might be something along the lines of
{code:sql}
SELECT * FROM table WHERE map['country'] = 'usa';
{code}
or
{code:sql}
SELECT * FROM table WHERE map CONTAINS ENTRY { 'country': 'usa' };
{code}
Of course, right now we can have the client refine the results from
{code:sql}
SELECT * FROM table WHERE map CONTAINS { 'usa' };
{code}
or
{code:sql}
SELECT * FROM table WHERE map CONTAINS KEY { 'country' };
{code}
but I believe this would add a good deal of flexibility.
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