UPDATE catalog_clone.pg_index SET indkey = '1 2 12345'::int2vector WHERE indexrelid = 2837;
ERROR: operator does not exist: int2vector pg_catalog.@> smallint[]
LINE 1: ...WHERE "attrelid" OPERATOR(pg_catalog.=) $1 AND $2 OPERATOR(p...
In your example, you are using the notation '1 2 12345'::int2vector which signifies a vector as you have mentioned, however in this patch we use the array operator @> to help with the indexing, the incompatibility stems from here.
I do not think that postgres contains vector operators, correct me if I am wrong. I feel that supporting vectors is our of the scope of this patch, if you have an idea how to support it please let me know.
