While investigating a user's complaint, I have found some memory

destructions in 6.4 source using purify.

(1) parser/gram.y:fmtId()

It writes n+3 bytes into n+1 byte-long memory area if mixed case or
non-ascii identifiers given.

(2) catalog/index.c:

ATTRIBUTE_TUPLE_SIZE bytes are allocated but
sizeof(FormData_pg_attribute) bytes are written. Note that
ATTRIBUTE_TUPLE_SIZE is smaller than
sizeof(FormData_pg_attribute). (for example, on solaris 2.6,

Tatsuo Ishii