[CALCITE-5723] Oracle dialect generates SQL that cannot be recognized by lower version Oracle Server(<12) when unparsing OffsetFetch

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.34.0
• Fix Version/s: 1.35.0
• Component/s: core
• Labels: pull-request-available
• Assignee: ZheHu
• Reporter: ZheHu
• Created: 25/May/23 08:21
• Updated: 24/Nov/23 21:38
• Resolved: 02/Jun/23 01:58

Description

Current OracleSqlDialect unparses offset/fetch using ANSI standard "OFFSET offset ROWS FETCH NEXT fetch ROWS ONLY" syntax. However, Oracle supports such syntax since 12c.

Issue Links

• is related to: CALCITE-1786 Implement Oracle <12g support of limit/offset query syntax
• links to: GitHub Pull Request #3225