CreateQuery messages (children 3)
 Identifier messages
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration id (children 1)
    DataType Int64
   ColumnDeclaration user_id (children 1)
    DataType Int64
   ColumnDeclaration text (children 1)
    DataType String
 Storage definition (children 2)
  Function ReplicatedMergeTree (children 1)
   ExpressionList (children 2)
    Literal \'/clickhouse/{database}/tables/03623_messages\'
    Literal \'r1\'
  Function tuple (children 1)
   ExpressionList
