Hi
I have 2 table
table1:
id
column1
table2:
id
column2
I perform this query
SELECT column1, column2 FROM table1 LEFT JOIN table2 USING (id)
ORDER BY column1, column2
In the rows where column1 is not null postgres perform ORDER BY column1,
column2
Problem:
In the rows where Column1 is null, postgres don't perform ORDER BY on
the column2
Why?
Same behavior when:
SELECT column1, column2 FROM table1 LEFT JOIN table2 USING (id)
ORDER BY coalesce(column1,''), column2
Thanks in advance
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-------------------------------
Alessandro Vincelli
