ClickHouse/tests/queries/0_stateless/01213_alter_rename_column.sql

DROP TABLE IF EXISTS table_for_rename;

CREATE TABLE table_for_rename
(
  date Date,
  key UInt64,
  value1 String,
  value2 String,
  value3 String
)
ENGINE = MergeTree()
PARTITION BY date
ORDER BY key;

INSERT INTO table_for_rename SELECT toDate('2019-10-01') + number % 3, number, toString(number), toString(number), toString(number) from numbers(9);

SELECT value1 FROM table_for_rename WHERE key = 1;

ALTER TABLE table_for_rename RENAME COLUMN value1 to renamed_value1;

SELECT renamed_value1 FROM table_for_rename WHERE key = 1;

SELECT * FROM table_for_rename WHERE key = 1 FORMAT TSVWithNames;

ALTER TABLE table_for_rename RENAME COLUMN value3 to value2; --{serverError 15}
ALTER TABLE table_for_rename RENAME COLUMN value3 TO r1, RENAME COLUMN value3 TO r2; --{serverError 36}
ALTER TABLE table_for_rename RENAME COLUMN value3 TO r1, RENAME COLUMN r1 TO value1; --{serverError 10}

ALTER TABLE table_for_rename RENAME COLUMN value2 TO renamed_value2, RENAME COLUMN value3 TO renamed_value3;

SELECT renamed_value2, renamed_value3 FROM table_for_rename WHERE key = 7;

SELECT * FROM table_for_rename WHERE key = 7 FORMAT TSVWithNames;

ALTER TABLE table_for_rename RENAME COLUMN value100 to renamed_value100; --{serverError 10}
ALTER TABLE table_for_rename RENAME COLUMN IF EXISTS value100 to renamed_value100;

DROP TABLE IF EXISTS table_for_rename;