CreateQuery mass_table_117 (children 3) Identifier mass_table_117 Columns definition (children 1) ExpressionList (children 3) ColumnDeclaration dt (children 1) DataType Date ColumnDeclaration site_id (children 1) DataType Int32 ColumnDeclaration site_key (children 1) DataType String Storage definition (children 1) Function MergeTree (children 1) ExpressionList (children 3) Identifier dt Function tuple (children 1) ExpressionList (children 3) Identifier site_id Identifier site_key Identifier dt Literal UInt64_8192