Doc: mention foreign keys can reference unique indexes We seem to have only documented a foreign key can reference the columns of a primary key or unique constraint. Here we adjust the documentation to mention columns in a non-partial unique index can be mentioned too.
The header comment for transformFkeyCheckAttrs() also didn't mention unique indexes, so fix that too. In passing make that header comment reflect reality in the various other aspects where it deviated from it. Bug: 18295 Reported-by: Gilles PARC Author: Laurenz Albe, David Rowley Discussion: https://www.postgresql.org/message-id/18295-0ed0fac5c9f7b17b%40postgresql.org Backpatch-through: 12 Branch ------ REL_12_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/dff1756c392ec7e3ac9b0b4bb2112a594765902a Modified Files -------------- doc/src/sgml/ddl.sgml | 20 ++++++++++---------- doc/src/sgml/ref/create_table.sgml | 19 +++++++++++++++---- src/backend/commands/tablecmds.c | 14 +++++++++----- 3 files changed, 34 insertions(+), 19 deletions(-)
