pgsql: doc: foreign servers with pushdown need matching collation

doc: foreign servers with pushdown need matching collation

Reported-by: Pete Storer

Discussion: /messages/by-id/BL0PR05MB66283C57D72E321591AE4EB1F3CE9@BL0PR05MB6628.namprd05.prod.outlook.com

Backpatch-through: 11

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/fb46719a985ee95e70f5627f3b4f06c84d7d04e7

Modified Files
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doc/src/sgml/ref/create_server.sgml | 5 +++++
1 file changed, 5 insertions(+)