Wrong column name.
CREATE TABLE default.table_for_bad_alters (`key` UInt64, `value1` UInt8, `value2` String) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/table_for_bad_alters\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
CREATE TABLE default.table_for_bad_alters (`key` UInt64, `value1` UInt8, `value2` UInt32) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/table_for_bad_alters\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
syntax error at begin of string.
7
Hello
World
Wrong index name.