============= Release 0.109 ============= General Changes --------------- * Add :func:`slice`, :func:`md5`, :func:`array_min` and :func:`array_max` functions. * Fix bug that could cause queries submitted soon after startup to hang forever. * Fix bug that could cause ``JOIN`` queries to hang forever, if the right side of the ``JOIN`` had too little data or skewed data. * Improve index join planning heuristics to favor streaming execution. * Improve validation of date/time literals. * Produce RPM package for Presto server. * Always redistribute data when writing tables to avoid skew. This can be disabled by setting the session property ``redistribute_writes`` or the config property ``redistribute-writes`` to false. Remove "Big Query" Support -------------------------- The experimental support for big queries has been removed in favor of the new resource manager which can be enabled via the ``experimental.cluster-memory-manager-enabled`` config option. The ``experimental_big_query`` session property and the following config options are no longer supported: ``experimental.big-query-initial-hash-partitions``, ``experimental.max-concurrent-big-queries`` and ``experimental.max-queued-big-queries``.