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d746021de1
There were many calls to construct_array() and deconstruct_array() for built-in types, for example, when dealing with system catalog columns. These all hardcoded the type attributes necessary to pass to these functions. To simplify this a bit, add construct_array_builtin(), deconstruct_array_builtin() as wrappers that centralize this hardcoded knowledge. This simplifies many call sites and reduces the amount of hardcoded stuff that is spread around. Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://www.postgresql.org/message-id/flat/2914356f-9e5f-8c59-2995-5997fc48bcba%40enterprisedb.com
test_rls_hooks is an example of how to use the hooks provided for RLS to
define additional policies to be used.
Functions
=========
test_rls_hooks_permissive(CmdType cmdtype, Relation relation)
RETURNS List*
Returns a list of policies which should be added to any existing
policies on the relation, combined with OR.
test_rls_hooks_restrictive(CmdType cmdtype, Relation relation)
RETURNS List*
Returns a list of policies which should be added to any existing
policies on the relation, combined with AND.