Is there a bug in Access 2007? I have constructed a UNION query with 5 parts,
selecting the same number of fields from a table but with different rows
based on different criteria, as follows:
SELECT col1, col2, col3...col5 AS [common name1], col6 AS [common name2]
...
UNION ALL
SELECT col1, col2, col3...col10 AS [common name1], col11 AS [common name2]
...
UNION ALL
SELECT col1, col2, col3...col15 AS [common name1], col16 AS [common name2]
...
UNION ALL
SELECT col1, col2, col3...col20 AS [common name1], col21 AS [common name2]
...
UNION ALL
SELECT col1, col2, col3...col25 AS [common name1], col26 AS [common name2]
...;

Columns 5,10,15,20 and 25 are all the same type as are columns 6,11,16,21,26

When I run the query, I get prompted to enter the parameter for column 5,
just as if I planned to enter the value dynamically, even f I remove the
brackets and enter just a single word after the AS keyword. However , if I
remove the AS [common name1], the AS [common name2] functions correctly,
renaming the column to common name2.

TIA for any assistance.