[DERBY-3257] SELECT with HAVING clause containing OR conditional incorrectly return 1 row - should return 2 rows - works correctly with 10.2 DB

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.3.1.4, 10.3.2.1, 10.4.1.3
• Fix Version/s: 10.3.3.0, 10.4.1.3
• Component/s: SQL
• Bug behavior facts: Regression
• Assignee: Katherine Marsden
• Reporter: Sun Seng David Tan
• Created: 06/Dec/07 00:57
• Updated: 30/Jun/09 15:55
• Resolved: 22/Jan/08 20:22

Description

Attached program demonstrates the problem. Only one count is returned (matching CODE= GBR) - the count of CODE=CHA is not returned. Works fine with versions 10.1 and 10.2 or if program is run using 10.3 jars and 10.2 database (soft upgrade).

Query:
SELECT COUNT(t0.ID) FROM CTS1.TEST_TABLE t0
GROUP BY t0.CODE
HAVING (t0.CODE = 'GBR' OR t0.CODE = 'CHA') AND t0.CODE IS NOT NULL

Incorrect results (see last line):
Database product: Apache Derby
Database version: 10.3.1.5 - (579866)
Driver name: Apache Derby Embedded JDBC Driver
Driver version: 10.3.1.5 - (579866)
result: 2

Correct results:
Database product: Apache Derby
Database version: 10.2.2.0 - (485682)
Driver name: Apache Derby Embedded JDBC Driver
Driver version: 10.2.2.0 - (485682)
result: 4
result: 2

Issue Links

• is part of: DERBY-2034 Tracking of bugs that lead to incorrect results being stored or returned to the client
• is related to: DERBY-681 Eliminate the parser's rewriting of the abstract syntax tree for queries with GROUP BY and/or HAVING clauses