ADO - adSchemaColumns doesn't seem to work.

Hi,

I have some standard code below that seems to work fine with all databases I
have tested including teradata, oracle, sql server etc.

All I am trying to do is return a record set object to the data in a table.

I've just installed and tested it on postgres and it gives me an error -

'object or provider is not capable of performing requested operation'

can anyone give me any clues as to what I am missing?

The code below can be tested in excel if you add a reference to ADO.

Public Sub test()
'connect
Dim cnSim As New ADODB.Connection
Dim connectionstring As String
connectionstring = "Provider=PostgreSQL.1;Password=password;User
ID=postgres;Data Source=localhost;Location=postgres;Extended
Properties="""""
cnSim.connectionstring = connectionstring
cnSim.Open

'list the tables
Dim s As String
Dim s1 As String
Dim rs As New ADODB.Recordset

Set rs = cnSim.OpenSchema(adSchemaTables)
While Not rs.EOF
s = rs!Table_Schema & "." & rs!TABLE_NAME
s1 = rs!TABLE_NAME
Debug.Print s
rs.MoveNext
Wend

'works fine to here.

'try to return record set of a table
Dim aRestrictions As Variant
aRestrictions = Array(Empty, Empty, s, Empty)
'aRestrictions = Array(Empty, Empty, s1, Empty)
Set rs = cnSim.OpenSchema(adSchemaColumns, aRestrictions)
'Error - object or provider is not capable of performing requested
operation'

End Sub