presto-main/src/main/java/io/prestosql/sql/rewrite/ShowStatsRewrite.java/Visitor/createEmptyColumnStatsRow
class Visitor:        private Expression createEmptyColumnStatsRow(String columnName)
        {
            ImmutableList.Builder<Expression> rowValues = ImmutableList.builder();
            rowValues.add(new StringLiteral(columnName));
            rowValues.add(NULL_DOUBLE);
            rowValues.add(NULL_DOUBLE);
            rowValues.add(NULL_DOUBLE);
            rowValues.add(NULL_DOUBLE);
            rowValues.add(NULL_VARCHAR);
            rowValues.add(NULL_VARCHAR);
            return new Row(rowValues.build());
        }