CreateQuery table_03002 (children 3)
 Identifier table_03002
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration ts (children 1)
    DataType DateTime
   ColumnDeclaration event_type (children 1)
    DataType String
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier event_type
    Identifier ts
