# 13.168. Release 0.86

## General Changes

• Add support for inequality INNER JOIN when each term of the condition refers to only one side of the join.
• Add ntile() function.
• Add map() function to create a map from arrays of keys and values.
• Add min_by() aggregation function.
• Add support for concatenating arrays with the || operator.
• Add support for = and != to JSON type.
• Improve error message when DISTINCT is applied to types that are not comparable.
• Perform type validation for IN expression where the right-hand side is a subquery expression.
• Improve error message when ORDER BY ... LIMIT query exceeds its maximum memory allocation.
• Improve error message when types that are not orderable are used in an ORDER BY clause.
• Improve error message when the types of the columns for subqueries of a UNION query don’t match.
• Fix a regression where queries could be expired too soon on a highly loaded cluster.
• Fix scheduling issue for queries involving tables from information_schema, which could result in inconsistent metadata.
• Fix an issue with min_by() and max_by() that could result in an error when used with a variable-length type (e.g., VARCHAR) in a GROUP BY query.
• Fix rendering of array attributes in JMX connector.
• Input rows/bytes are now tracked properly for JOIN queries.
• Fix case-sensitivity issue when resolving names of constant table expressions.
• Fix unnesting arrays and maps that contain the ROW type.