Consider a table:
CREATE TABLE t1(a INTEGER, b INTEGER);
INSERT INTO t1 VALUES(1,2);
INSERT INTO t1 VALUES(9,8);
I am reworking (read: trying to fix) the name resolution algorithm in
SQLite and I am wondering what is the correct behavior of the
following queries? Can anybody tell me what PostgreSQL or MySQL or
SQL Server or Oracle do with these?
SELECT a AS b, b AS a FROM t1 ORDER BY a;
SELECT b AS a, a AS b FROM t1 ORDER BY a;
SELECT a, b AS a FROM t1 ORDER BY a;
SELECT a AS x, b AS x ORDER BY x;
SELECT a AS b, b AS a WHERE a=1;
SELECT a AS b, b AS a WHERE a=2;
SELECT a AS x, b AS x WHERE x=1;
D. Richard Hipp
[EMAIL PROTECTED]
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