CreateQuery HASH_MV (children 4)
 Identifier HASH_MV
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration HASH_VAL (children 1)
    DataType UInt64
   ColumnDeclaration STR_VAL (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Function xxHash64 (alias HASH_VAL) (children 1)
      ExpressionList (children 1)
       Identifier STR_VAL
     Function toLowCardinality (alias STR_VAL) (children 1)
      ExpressionList (children 1)
       Identifier STR_VAL
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier HASH_TEST_INSERT
 ViewTargets (children 1)
  Storage definition (children 2)
   Function ReplacingMergeTree
   Identifier HASH_VAL
