merge_empty_keys {autodb} | R Documentation |
Merge relation schemas with empty keys
Description
Merges an object's schemas with empty keys. The remaining such schema contains all attributes contained in such schemas.
Usage
merge_empty_keys(x)
Arguments
x |
a relational schema object, such as a |
Details
This function is not itself generic, but makes use of the generic functions
keys
and merge_schemas
. Any input class with
valid methods for these generic functions can be passed into this function.
For database_schema
objects, references involving the
schemas with empty keys are updated to refer to the merged schema.
Value
An R object of the same class as x
, where relations with an
empty key have been merged into a single relation.
See Also
merge_schemas
, on which this function is based.
[Package autodb version 2.3.1 Index]