add test [#CLICKHOUSE-3748]

dbms/tests/queries/0_stateless/00652_mergetree_mutations.reference

+Query should fail 1
+Query should fail 2
+Query involving aliases should fail on submission
+2000-01-01	2	b
+2000-01-01	5	e
+2000-02-01	2	b
+2000-02-01	5	e
+mutation_1.txt	DELETE WHERE x = 1	['']	[1]	0	1
+mutation_5.txt	DELETE WHERE (x % 2) = 1	['']	[5]	0	1
+mutation_6.txt	DELETE WHERE s = \'d\'	['']	[6]	0	1

dbms/tests/queries/0_stateless/00652_mergetree_mutations.sh

+#!/usr/bin/env bash
+
+CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+. $CURDIR/../shell_config.sh
+
+${CLICKHOUSE_CLIENT} --query="DROP TABLE IF EXISTS test.mutations"
+
+${CLICKHOUSE_CLIENT} --query="CREATE TABLE test.mutations(d Date, x UInt32, s String, a UInt32 ALIAS x + 1) ENGINE MergeTree(d, intDiv(x, 10), 8192)"
+
+# Test a mutation on empty table
+${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.mutations DELETE WHERE x = 1"
+
+# Insert some data
+${CLICKHOUSE_CLIENT} --query="INSERT INTO test.mutations(d, x, s) VALUES \
+    ('2000-01-01', 1, 'a')"
+${CLICKHOUSE_CLIENT} --query="INSERT INTO test.mutations(d, x, s) VALUES \
+    ('2000-01-01', 2, 'b'), ('2000-01-01', 3, 'c'), ('2000-01-01', 4, 'd') \
+    ('2000-02-01', 2, 'b'), ('2000-02-01', 3, 'c'), ('2000-02-01', 4, 'd')"
+
+# Try some malformed queries that should fail validation.
+${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.mutations DELETE WHERE nonexistent = 0" 2>/dev/null || echo "Query should fail 1"
+${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.mutations DELETE WHERE d = '11'" 2>/dev/null || echo "Query should fail 2"
+# TODO: Queries involving alias columns are not supported yet and should fail on submission.
+${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.mutations DELETE WHERE a = 0" 2>/dev/null || echo "Query involving aliases should fail on submission"
+
+# Delete some values
+${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.mutations DELETE WHERE x % 2 = 1"
+${CLICKHOUSE_CLIENT} --query="ALTER TABLE test.mutations DELETE WHERE s = 'd'"
+
+# Insert more data
+${CLICKHOUSE_CLIENT} --query="INSERT INTO test.mutations(d, x, s) VALUES \
+    ('2000-01-01', 5, 'e'), ('2000-02-01', 5, 'e')"
+
+# Wait until all mutations are done.
+for i in {1..100}
+do
+    sleep 0.1
+    if [[ $(${CLICKHOUSE_CLIENT} --query="SELECT sum(is_done) FROM system.mutations WHERE table='mutations'") -eq 3 ]]; then
+        break
+    fi
+
+    if [[ $i -eq 100 ]]; then
+       echo "Timed out while waiting for mutations to execute!"
+    fi
+done
+
+# Check that the table contains only the data that should not be deleted.
+${CLICKHOUSE_CLIENT} --query="SELECT * FROM test.mutations ORDER BY d, x"
+# Check the contents of the system.mutations table.
+${CLICKHOUSE_CLIENT} --query="SELECT mutation_id, command, block_numbers.partition_id, block_numbers.number, parts_to_do, is_done \
+    FROM system.mutations WHERE table = 'mutations' ORDER BY mutation_id"
+
+${CLICKHOUSE_CLIENT} --query="DROP TABLE test.mutations"