doc: Add link to table
Formal tables should generally have an xref in the text that points to
them. Add them here.
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/e03ec4641d2493db6fbfc60ff78d0f0b36d2ead1
Modified Files
--------------
doc/src/sgml/func.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)