#!/usr/bin/env bash

function perform()
{
	local query=$1
	TZ=UTC clickhouse-client \
		--use_client_time_zone=1 \
		--input_format_values_interpret_expressions=0 \
		--query "$query" 2>/dev/null
	if [ "$?" -ne 0 ]; then
		echo "query failed"
	fi
}

perform "DROP TABLE IF EXISTS test.alter"
perform "CREATE TABLE test.alter (d Date, a Enum8('foo'=1), b DateTime, c DateTime) ENGINE=MergeTree(d, (a, b, toTime(c)), 8192)"

perform "INSERT INTO test.alter VALUES ('2017-02-09', 'foo', '2017-02-09 00:00:00', '2017-02-09 00:00:00')"

# Must fail because d is used as as a date column in MergeTree
perform "ALTER TABLE test.alter MODIFY COLUMN d UInt16"

perform "ALTER TABLE test.alter MODIFY COLUMN a Enum8('foo'=1, 'bar'=2)"
perform "ALTER TABLE test.alter MODIFY COLUMN b UInt32"

# Must fail because column c is used in primary key via an expression.
perform "ALTER TABLE test.alter MODIFY COLUMN c UInt32"

perform "INSERT INTO test.alter VALUES ('2017-02-09', 'bar', 1486598400, '2017-02-09 00:00:00')"

perform "SELECT a, b, b = toUnixTimestamp(c) FROM test.alter ORDER BY a FORMAT TSV"

perform "DROP TABLE test.alter"