CreateQuery spark_bar_test (children 3)
 Identifier spark_bar_test
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration cnt (children 1)
    DataType UInt64
   ColumnDeclaration event_date (children 1)
    DataType Date
 Storage definition (children 3)
  Function MergeTree
  Identifier event_date
  Set