[jira] [Created] (ARROW-12037) [Rust] [DataFusion] Support catalogs and schemas for table namespacing

["Ruan Pearce-Authers (Jira)" <ji...@apache.org>]

Ruan Pearce-Authers created ARROW-12037:
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             Summary: [Rust] [DataFusion] Support catalogs and schemas for table namespacing
                 Key: ARROW-12037
                 URL: https://issues.apache.org/jira/browse/ARROW-12037
             Project: Apache Arrow
          Issue Type: New Feature
          Components: Rust - DataFusion
            Reporter: Ruan Pearce-Authers
            Assignee: Ruan Pearce-Authers


Proposal doc: [https://docs.google.com/document/d/1_bCP_tjVRLJyOrMBOezSFNpF0hwPa1ZS_qMWv1uvtS4/edit?usp=sharing]

 

Summary from the doc:



This is a particularly messy aspect of most SQL implementations, so let’s settle on some terms first:
 * Schema: a collection of named tables
 * Catalog: a collection of named schemas (also known as a database)

This doc will attempt to describe a standards-compliant implementation for DataFusion, using Postgres’ design decisions as a guide where the standard is not prescriptive (due to our adoption of its query dialect).

As an example of how this works in practice, given a default catalog of “db” and a default schema of “public”, all these table references would be equivalent:
 * db.public.my_table
 * public.my_table
 * my_table



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