CreateQuery temp (children 3)
 Identifier temp
 Columns definition (children 1)
  ExpressionList (children 12)
   ColumnDeclaration id (children 1)
    DataType UInt64
   ColumnDeclaration field1 (children 1)
    DataType UUID
   ColumnDeclaration field2 (children 1)
    DataType UUID
   ColumnDeclaration field3 (children 1)
    DataType Int64
   ColumnDeclaration field4 (children 1)
    DataType Int64
   ColumnDeclaration field5 (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration field6 (children 1)
    DataType FixedString (children 1)
     ExpressionList (children 1)
      Literal UInt64_3
   ColumnDeclaration field7 (children 1)
    DataType String
   ColumnDeclaration field8 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UUID
   ColumnDeclaration event_at (children 1)
    DataType DateTime (children 1)
     ExpressionList (children 1)
      Literal \'UTC\'
   ColumnDeclaration order_id (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UUID
   ColumnDeclaration identity (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 4)
  Function MergeTree
  Function toYYYYMM (children 1)
   ExpressionList (children 1)
    Identifier event_at
  Function tuple (children 1)
   ExpressionList (children 5)
    Identifier field1
    Identifier event_at
    Identifier field2
    Identifier field5
    Identifier id
  Set