[teiid-issues] [JBoss JIRA] Commented: (TEIID-1326) API request: rewrite query/command before it reaches the teiid planner

API request: rewrite query/command before it reaches the teiid planner ----------------------------------------------------------------------- Key: TEIID-1326 URL: https://issues.jboss.org/browse/TEIID-1326 Project: Teiid Issue Type: Feature Request Components: Query Engine Affects Versions: 7.1 Reporter: Mark Addleman Assignee: Steven Hawkins Fix For: 7.4 I'd like an API to inspect and rewrite a user query/command before it reaches the Teiid planner. The use case is to rewrite the query/command to implement view-like capabilities. For example: SELECT a,b,c FROM table1 AS t WHERE t.a='xyz' would be rewritten as: SELECT a,b,c FROM (SELECT a,b,c FROM table2 UNION SELECT a,b,c FROM table3) AS t I imagine this API would be similar to the translator API: it would receive a data structure representing the query/command and use a visitor to rewrite the query. As a convenience, it would be nice to have something similar to the SQLConversionVisitor.