CreateQuery test_break_ddl (children 3)
 Identifier test_break_ddl
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration id (children 1)
    DataType String
   ColumnDeclaration event_date (children 1)
    DataType Date
   ColumnDeclaration event_time (children 1)
    DataType DateTime
   ColumnDeclaration message (children 1)
    DataType String
 Storage definition (children 3)
  Function ReplacingMergeTree (children 1)
   ExpressionList
  Identifier event_date
  Function tuple (children 1)
   ExpressionList (children 3)
    Identifier id
    Identifier event_date
    Identifier event_time
