Retrieve the named projections registered on a schema via
.projection(name, columns).
Returns a map of { [name]: { keys: readonly string[] } } where each
entry's keys array contains the property keys (not SQL column names)
for that projection. Returns an empty object when no projections are
defined.
Retrieve the named projections registered on a schema via
.projection(name, columns).Returns a map of
{ [name]: { keys: readonly string[] } }where each entry'skeysarray contains the property keys (not SQL column names) for that projection. Returns an empty object when no projections are defined.