Doc: clarify handling of duplicate elements in array containment tests. The array <@ and @> operators do not worry about duplicates: if every member of array X matches some element of array Y, then X is contained in Y, even if several members of X get matched to the same Y member. This was not explicitly stated in the docs though, so improve matters.
Discussion: https://postgr.es/m/156614120484.1310.310161642239149...@wrigleys.postgresql.org Branch ------ REL_12_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/216bcf583802011365b8bb038b4e73f143e857b2 Modified Files -------------- doc/src/sgml/func.sgml | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-)
