SELECT * ILIKE EXCLUDE REPLACE RENAME

Database vendors are competing to see who can come up with the most features for SELECT *. Snowflake is not lagging and supports as many as 4 modifiers for SELECT *: ILIKE EXCLUDE REPLACE RENAME

We all know that SELECT * is bad. Now it's 4 times worse :) Ok, 3. You can't use them all together (either ILIKE or EXCLUDE).

But the most disgusting modifier is REPLACE. It allows you to replace one column with any expression. Good luck debugging, dudes :)

What happens to lineage when using these modifiers? A few examples are collected here: in 4.select-ilike-exclude-replace-rename.1.sql

Take a look at one of them:

CREATE TABLE t19(
  id INT,
  c1 BOOLEAN, 
  c2 BOOLEAN,
  c3 BOOLEAN,
  c4 BOOLEAN,
  c12c BOOLEAN
);
CREATE TABLE t20(
  c5 BOOLEAN, 
  c6 BOOLEAN
);

CREATE VIEW v20 AS
  SELECT
    * 
      ILIKE 'c%'
      REPLACE (a.c1 OR b.$2 AS c1)
      RENAME c1 AS c0
  FROM t19 a, t20 b
;

At Dwh.dev, we display it like this: