CreateQuery tab (children 3) Identifier tab Columns definition (children 2) ExpressionList (children 2) ColumnDeclaration k (children 1) DataType UInt64 ColumnDeclaration s (children 1) DataType String ExpressionList (children 1) Index (children 2) Identifier s Function text (children 1) ExpressionList (children 1) Function equals (children 1) ExpressionList (children 2) Identifier tokenizer Function sparseGrams (children 1) ExpressionList (children 2) Literal UInt64_3 Literal UInt64_100 Storage definition (children 3) Function MergeTree (children 1) ExpressionList Identifier k Set