Horton

Ignore XML declaration in xpath_internal(), for UTF8 databases.

Noah Misch <noah@leadboat.com>

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Commit: 46fb15f48a2d76beccf8d422f699373b60e954f6
Author: Noah Misch <noah@leadboat.com>
Date: 2017-11-11T19:11:19Z
Releases: 9.6.7 
Ignore XML declaration in xpath_internal(), for UTF8 databases.

When a value contained an XML declaration naming some other encoding,
this function interpreted UTF8 bytes as the named encoding, yielding
mojibake.  xml_parse() already has similar logic.  This would be
necessary but not sufficient for non-UTF8 databases, so preserve
behavior there until the xpath facility can support such databases
comprehensively.  Back-patch to 9.3 (all supported versions).

Pavel Stehule and Noah Misch

Discussion: https://postgr.es/m/CAFj8pRC-dM=tT=QkGi+Achkm+gwPmjyOayGuUfXVumCxkDgYWg@mail.gmail.com

Files

PathChange+/−
src/backend/utils/adt/xml.c modified +13 −1
src/test/regress/expected/xml_1.out modified +35 −0
src/test/regress/expected/xml_2.out modified +31 −0
src/test/regress/expected/xml.out modified +31 −0
src/test/regress/sql/xml.sql modified +32 −0

Discussion