pgsql: Doc: Add a caution in alter publication.

Doc: Add a caution in alter publication.

Clarify that altering the 'publish_via_partition_root' option can lead to
data loss or duplication when a partition root table is specified as the
replication target.

Reported-by: Maxim Boguk
Author: Hayato Kuroda
Reviewed-by: Amit Kapila, Peter Smith, Vignesh C
Discussion: https://postgr.es/m/18644-6866bbd22178ee16@postgresql.org

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/b8a046081c43ce4a0a462812165f34b6026e60ef

Modified Files
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doc/src/sgml/ref/alter_publication.sgml | 15 +++++++++++++++
1 file changed, 15 insertions(+)