From: | tgl(at)postgresql(dot)org (Tom Lane) |
---|---|
To: | pgsql-committers(at)postgresql(dot)org |
Subject: | pgsql: Make replace(), split_part(), and string_to_array() behave |
Date: | 2007-07-19 20:34:27 |
Message-ID: | 20070719203427.ED1959FBD49@postgresql.org |
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Lists: | pgsql-committers |
Log Message:
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Make replace(), split_part(), and string_to_array() behave somewhat sanely
when handed an invalidly-encoded pattern. The previous coding could get
into an infinite loop if pg_mb2wchar_with_len() returned a zero-length
string after we'd tested for nonempty pattern; which is exactly what it
will do if the string consists only of an incomplete multibyte character.
This led to either an out-of-memory error or a backend crash depending
on platform. Per report from Wiktor Wodecki.
Tags:
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REL8_2_STABLE
Modified Files:
--------------
pgsql/src/backend/utils/adt:
varlena.c (r1.153 -> r1.153.2.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/varlena.c.diff?r1=1.153&r2=1.153.2.1)
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