[CASSANDRA-3782] Secondary indexes support for wide rows in CQL 3.0

• Type: Sub-task
• Status: Resolved
• Priority: Normal
• Resolution: Won't Fix
• Fix Version/s: 1.2.2
• Component/s: Feature/2i Index, Legacy/CQL
• Assignee: Sylvain Lebresne
• Reporter: Sylvain Lebresne

Authors

Sylvain Lebresne

• Created: 25/Jan/12 18:00
• Updated: 16/Apr/19 09:32
• Resolved: 20/Feb/13 05:00

Description

Currently, CQL 3.0 doesn't allow creating an index on a dynamic CF (with COMPACT STORAGE). The goal of this ticket is not to support the composite case however (CASSANDRA-3680 will tackle this).

I think changes needed to support this are only in the CQL side and covert two area:

• Finding a syntax for it
• Currently, the CQL 3 code consider that a CF with any column_metadata defined is a non-compact cf. Basically the problem is that we currently use column_metadata both for defining a name for a column in the static case, and store indexing information. Ideally, we would separate those informations, i.e. we could add a new map valueAliases (ByteBuffer -> AbstractType) to CFMetadata (only used by static CF) and we would keep column_metadata for indexing purpose only. However that may be problematic for backward compatibility (with thrift in particular), so probably instead we can just add a new boolean isStaticColumnName to ColumnDefinition.