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Fix XMLTABLE() deparsing to quote namespace names if necessary.

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When deparsing an XMLTABLE() expression, XML namespace names were not
quoted. However, since they are parsed as ColLabel tokens, some names
require double quotes to ensure that they are properly interpreted.
Fix by using quote_identifier() in the deparsing code.

Back-patch to all supported versions.

Dean Rasheed, reviewed by Tom Lane.

Discussion: https://postgr.es/m/CAEZATCXTpAS%3DncfLNTZ7YS6O5puHeLg_SUYAit%2Bcs7wsrd9Msg%40mail.gmail.com
This commit is contained in:
Dean Rasheed
2025-01-12 12:54:32 +00:00
parent 29dfffae0a
commit d673eefd41
5 changed files with 26 additions and 13 deletions
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8
src/test/regress/sql/xml.sql
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@@ -439,13 +439,15 @@ SELECT * FROM XMLTABLE(XMLNAMESPACES('http://x.y' AS zz),
PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>'
COLUMNS a int PATH 'zz:a');
CREATE VIEW xmltableview2 AS SELECT * FROM XMLTABLE(XMLNAMESPACES('http://x.y' AS zz),
'/zz:rows/zz:row'
CREATE VIEW xmltableview2 AS SELECT * FROM XMLTABLE(XMLNAMESPACES('http://x.y' AS "Zz"),
'/Zz:rows/Zz:row'
PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>'
COLUMNS a int PATH 'zz:a');
COLUMNS a int PATH 'Zz:a');
SELECT * FROM xmltableview2;
\sv xmltableview2
SELECT * FROM XMLTABLE(XMLNAMESPACES(DEFAULT 'http://x.y'),
'/rows/row'
PASSING '<rows xmlns="http://x.y"><row><a>10</a></row></rows>'