[teiid-issues] [JBoss JIRA] (TEIID-4532) Provide one-way or cryptographic hash functions
Steven Hawkins (JIRA)
issues at jboss.org
Thu Nov 10 16:09:00 EST 2016
[ https://issues.jboss.org/browse/TEIID-4532?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on TEIID-4532 started by Steven Hawkins.
---------------------------------------------
> Provide one-way or cryptographic hash functions
> -----------------------------------------------
>
> Key: TEIID-4532
> URL: https://issues.jboss.org/browse/TEIID-4532
> Project: Teiid
> Issue Type: Feature Request
> Components: Query Engine
> Affects Versions: 9.2
> Reporter: Van Halbert
> Assignee: Steven Hawkins
> Fix For: 9.2
>
>
> Provide one-way or [cryptographic hash functions|https://en.wikipedia.org/wiki/SHA-3#Comparison_of_SHA_functions], such as any of the MD5, SHA-1, SHA-2, or SHA-3 functions, so that views can define columns that are hashes of other columns.
> The goal is to allow views to hide some columns (e.g., personally identifying information), but to expose a new "primary key" that is a hash of other existing columns. So, given this source table:
> {code:sql}
> CREATE TABLE person (
> id INT PRIMARY KEY,
> name VARCHAR(256) NOT NULL,
> age INT,
> height INT,
> weight DOUBLE
> );
> {code}
> a view could be created to hide the personally identifying information:
> {code:sql}
> CREATE VIEW anonymousPerson ()
> id VARCHAR(64) PRIMARY KEY,
> age INT,
> height INT,
> weight DOUBLE
> ) AS
> SELECT sha256(p.id, p.name) AS id,
> p.age AS age,
> p.height AS height,
> p.weight AS weight
> FROM person AS p;
> {code}
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