CreateQuery address (children 3)
 Identifier address
 Columns definition (children 1)
  ExpressionList (children 7)
   ColumnDeclaration email_address (children 1)
    DataType String
   ColumnDeclaration domain (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration first_name (children 1)
    DataType String
   ColumnDeclaration last_name (children 1)
    DataType String
   ColumnDeclaration country (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration esp (children 1)
    DataType UInt8
   ColumnDeclaration list_import_sid (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 4)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList (children 5)
    Identifier list_import_sid
    Identifier country
    Identifier esp
    Identifier domain
    Identifier email_address
  Function tuple (children 1)
   ExpressionList (children 5)
    Identifier list_import_sid
    Identifier country
    Identifier esp
    Identifier domain
    Identifier email_address
  Set
