pgsql: Fix low-probability memory leak in XMLSERIALIZE(... INDENT). - Mailing list pgsql-committers

Fix low-probability memory leak in XMLSERIALIZE(... INDENT).

xmltotext_with_options() did not consider the possibility that
pg_xml_init() could fail --- most likely due to OOM.  If that
happened, the already-parsed xmlDoc structure would be leaked.
Oversight in commit 483bdb2af.

Bug: #18981
Author: Dmitry Kovalenko <d.kovalenko@postgrespro.ru>
Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us>
Discussion: https://postgr.es/m/18981-9bc3c80f107ae925@postgresql.org
Backpatch-through: 16

Branch
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REL_18_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/075554ec6c0c8ef9fca38086624d27d8df2a27d7

Modified Files
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src/backend/utils/adt/xml.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)