This arises from using *
.
If the definition of ads
changes (columns added or removed) this can mess up the metadata associated with the TVF.
You would need to run sp_refreshsqlmodule
on it to refresh this metadata after such changes. It is best to avoid *
in view definitions or inline TVFs for this reason.
An example of this
CREATE TABLE T
(
A CHAR(1) CONSTRAINT DF_A DEFAULT 'A',
B CHAR(1) CONSTRAINT DF_B DEFAULT 'B',
C CHAR(1) CONSTRAINT DF_C DEFAULT 'C',
D CHAR(1) CONSTRAINT DF_D DEFAULT 'D'
)
GO
INSERT INTO T DEFAULT VALUES
GO
CREATE FUNCTION F()
RETURNS TABLE
AS
RETURN
SELECT * FROM T
GO
SELECT * FROM F()
GO
ALTER TABLE T DROP CONSTRAINT DF_C, COLUMN C
ALTER TABLE T ADD E CHAR(1) DEFAULT 'E' WITH VALUES
GO
SELECT * FROM F()
Returns
+---+---+---+---+
| A | B | C | D |
+---+---+---+---+
| A | B | D | E |
+---+---+---+---+
Note that the D
and E
values are shown in the wrong columns. It still shows column C
even though it has been dropped.