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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