# name: test/sql/upsert/test_big_insert.test
# description: Test insert into statements
# group: [upsert]

statement ok
PRAGMA enable_verification;

statement ok
SET preserve_insertion_order = false;

statement ok
CREATE TABLE integers(
	i INT UNIQUE,
	j INT DEFAULT 0,
	k INT DEFAULT 0
);

statement ok
INSERT INTO integers(i) SELECT i FROM range(5000) tbl(i);

query I
SELECT COUNT(*) FROM integers
----
5000

# All tuples hit a conflict - DO NOTHING.
statement ok
INSERT INTO integers SELECT * FROM integers ON CONFLICT DO NOTHING;

# All tuples hit a conflict - DO UPDATE.
statement ok
INSERT INTO integers SELECT * FROM integers ON CONFLICT DO UPDATE SET j = 10;

# All 'j' entries are changed to 10.
query I
SELECT COUNT(*) FILTER (WHERE j = 10) FROM integers
----
5000

statement ok
INSERT INTO integers(i, j) SELECT i % 5, i FROM range(4995, 5000) tbl(i) ON CONFLICT DO UPDATE SET j = excluded.j, k = excluded.i;

query I
SELECT j FROM integers LIMIT 5;
----
4995
4996
4997
4998
4999

# This is the worst conflicting rowid pattern we could have.
# Every odd-indexed insert tuple conflicts with a row at the start of the existing tuples.
# And every even-indexed insert tuple conflicts with a row at the end of the existing tuples.
statement ok
INSERT INTO integers(i, j)
	SELECT CASE WHEN i % 2 = 0
		THEN 4999 - (i // 2)
		ELSE i - ((i // 2) + 1)
		END, i
	FROM range(5000) tbl(i)
ON CONFLICT DO UPDATE SET j = excluded.j;

# This shows that the odd-indexed insert tuples conflicted with the first rows.
query I
SELECT j FROM integers LIMIT 5;
----
1
3
5
7
9

# This shows that the even-indexed insert tuples conflicted with the last rows.
query I
SELECT j FROM integers LIMIT 5 OFFSET 4995;
----
8
6
4
2
0

# Reset j.
statement ok
UPDATE integers SET j = 0;

# Only set j if both the existing tuple and the insert tuple are even.
statement ok
INSERT INTO integers(i, j)
	SELECT CASE WHEN i % 2 = 0
		THEN 4999 - (i // 2)
		ELSE i - ((i // 2) + 1)
		END, i
	FROM range(5000) tbl(i)
ON CONFLICT DO UPDATE SET j = excluded.j
WHERE i % 2 = 0 AND excluded.j % 2 = 0;

# The DO UPDATE WHERE clause is only true for a quarter of the cases.
query I
SELECT COUNT(j) FILTER (WHERE j != 0) FROM integers;
----
1250