Bug #7377 SHOW index on MERGE table crashes debug server

• Submitted: 17 Dec 2004 7:24
• Modified: 28 Jan 2005 0:03
• Reporter: Hartmut Holzgraefe
• Status: Closed
• Category: MySQL Server
• Severity: S3 (Non-critical)
• Version: 4.1.7
• OS: Linux (linux, solaris)
• Assigned to: Timour Katchaounov
• CPU Architecture: Any

[17 Dec 2004 7:24] Hartmut Holzgraefe

Description:
The handler class defines the index_type() member function as:

  virtual const char *index_type(uint key_number) { DBUG_ASSERT(0); return "";}

The merge handler class does not provide its own index_type() implementation
so the assertion will always fail for merge tables.

How to repeat:
using a debug server do:

SHOW INDEX FROM some_merge_table; 

Suggested fix:
implement index_type() in the merge handler class or drop the assertion

[28 Jan 2005 0:03] Paul DuBois

Mentioned in 4.1.10 change notes.