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@@ -0,0 +1,316 @@
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+UPDATE products SET unit_id = (SELECT unit_id FROM (SELECT count(t.id), defaults.unit_id, product_id
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+FROM transactions t
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+JOIN units ON unit_id = units.id
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+JOIN unit_types_default defaults USING(unit_type_id)
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+GROUP BY defaults.unit_id, product_id) q
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+WHERE id = product_id
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+ORDER BY count DESC
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+LIMIT 1)
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+WHERE unit_id IS NULL;
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+
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+BEGIN;
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+--ALTER TABLE transactions DROP CONSTRAINT fk_product_id ;
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+--ALTER TABLE transactions ADD CONSTRAINT fk_product_id FOREIGN KEY (product_id) REFERENCES products(id) ON UPDATE CASCADE;
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+--ALTER TABLE conversions_complex DROP CONSTRAINT fk_product_id ;
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+--ALTER TABLE conversions_complex ADD CONSTRAINT fk_product_id FOREIGN KEY (product_id) REFERENCES products(id) ON UPDATE CASCADE;
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+--ALTER TABLE transactions DROP CONSTRAINT fk_store_id ;
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+--ALTER TABLE transactions ADD CONSTRAINT fk_store_id FOREIGN KEY (store_id) REFERENCES stores(id) ON UPDATE CASCADE;
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+ALTER TABLE products DROP CONSTRAINT fk_category_id ;
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+ALTER TABLE products ADD CONSTRAINT fk_category_id FOREIGN KEY (category_id) REFERENCES categories(id) ON UPDATE CASCADE;
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+ALTER TABLE categories DROP CONSTRAINT fk_group_id ;
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+ALTER TABLE categories ADD CONSTRAINT fk_group_id FOREIGN KEY (group_id) REFERENCES groups(id) ON UPDATE CASCADE;
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+DO
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+$$
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+DECLARE
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+ item record;
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+ next int;
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+BEGIN
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+ --SELECT 1 INTO next;
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+ --FOR item IN (SELECT id FROM products ORDER BY id) LOOP
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+ -- UPDATE products SET id = next WHERE id = item.id;
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+ -- SELECT next+1 INTO next;
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+ --END LOOP;
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+ --SELECT 1 INTO next;
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+ --FOR item IN (SELECT id FROM stores ORDER BY id) LOOP
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+ -- UPDATE stores SET id = next WHERE id = item.id;
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+ -- SELECT next+1 INTO next;
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+ --END LOOP;
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+ -- SELECT 1 INTO next;
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+ -- FOR item IN (SELECT id FROM transactions ORDER BY id) LOOP
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+ -- UPDATE transactions SET id = next WHERE id = item.id;
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+ -- SELECT next+1 INTO next;
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+ -- END LOOP;
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+ SELECT 1 INTO next;
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+ FOR item IN (SELECT id FROM categories ORDER BY id) LOOP
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+ UPDATE categories SET id = next WHERE id = item.id;
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+ SELECT next+1 INTO next;
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+ END LOOP;
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+ SELECT 1 INTO next;
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+ FOR item IN (SELECT id FROM groups ORDER BY id) LOOP
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+ UPDATE groups SET id = next WHERE id = item.id;
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+ SELECT next+1 INTO next;
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+ END LOOP;
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+END;
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+$$ LANGUAGE plpgsql;
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+--ALTER TABLE transactions DROP CONSTRAINT fk_product_id ;
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+--ALTER TABLE transactions ADD CONSTRAINT fk_product_id FOREIGN KEY (product_id) REFERENCES products(id);
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+--ALTER TABLE conversions_complex DROP CONSTRAINT fk_product_id ;
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+--ALTER TABLE conversions_complex ADD CONSTRAINT fk_product_id FOREIGN KEY (product_id) REFERENCES products(id);
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+--ALTER TABLE transactions DROP CONSTRAINT fk_store_id ;
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+--ALTER TABLE transactions ADD CONSTRAINT fk_store_id FOREIGN KEY (store_id) REFERENCES products(id);
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+ALTER TABLE products DROP CONSTRAINT fk_category_id ;
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+ALTER TABLE products ADD CONSTRAINT fk_category_id FOREIGN KEY (category_id) REFERENCES categories(id);
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+ALTER TABLE categories DROP CONSTRAINT fk_group_id ;
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+ALTER TABLE categories ADD CONSTRAINT fk_group_id FOREIGN KEY (group_id) REFERENCES groups(id);
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+ROLLBACK;
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+grocery=> SELECT product_id, count(*) FROM transactions GROUP BY product_id ORDER BY product_id;
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+ product_id | count
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+------------+-------
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+ 2 | 57
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+ 3 | 23
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+ 4 | 32
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+ 5 | 75
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+ 6 | 5
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+ 7 | 61
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+ 8 | 9
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+ 19 | 2
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+ 20 | 56
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+ 21 | 26
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+ 22 | 45
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+ 23 | 33
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+ 30 | 1
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+ 31 | 31
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+ 32 | 42
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+ 33 | 13
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+ 34 | 45
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+ 35 | 30
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+ 1929 | 1
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+ 1930 | 6
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+ 2794 | 1
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+ 2842 | 1
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+ 2843 | 1
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+ 2972 | 5
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+ 3262 | 1
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+ 3263 | 1
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+ 3266 | 1
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+ 3279 | 1
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+ 3292 | 1
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+ 3307 | 1
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+ 3308 | 1
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+(215 rows)
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+grocery=> SELECT store_id, count(*) FROM transactions GROUP BY store_id ORDER BY store_id;
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+ store_id | count
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+----------+-------
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+ 1 | 791
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+ 2 | 368
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+ 3 | 3
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+ 4 | 12
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+ 5 | 16
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+ 6 | 57
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+ 9 | 19
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+ 10 | 22
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+ 11 | 9
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+ 12 | 1
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+ 13 | 31
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+ 14 | 1
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+ 15 | 11
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+ 16 | 2
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+ 17 | 1
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+ 18 | 3
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+ 19 | 1
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+ 20 | 18
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+ 21 | 1
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+ 22 | 4
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+ 23 | 3
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+ 24 | 1
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+ 25 | 22
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+ 26 | 1
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+ 27 | 1
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+ 28 | 3
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+ 29 | 3
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+ 30 | 1
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+(28 rows)
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Daniel Sheffield