The rename statement is used to change the name of an existing column in a DSET, or to change the source and/or alias of a DSET.
Renaming a column
When renaming a column, OldName may be a fully qualified column name. If it is not fully qualified then the column OldName in the default DSET will be renamed.
The NewName argument must not be fully qualified.
Any dots (.) in the new column name will automatically be replaced by underscores (_), as a dot is a reserved character used to implement DSET namespaces.
Renaming a DSET
When renaming a DSET, NewSource.NewAlias must contain exactly one dot and must not be the name of an existing DSET. The rename takes immediate effect, thus any subsequent reference to the renamed DSET in the transcript task must use its new name.
Any pending service definitions referencing the renamed DSET will automatically be updated with the new name.
# Rename the column 'UnitCost' in the default DSET to 'Cost'
rename column UnitCost to Cost
# Rename the column 'UnitCost' in the DSET 'custom.prices' to 'CustomCost'
rename column custom.prices.UnitCost to CustomCost