1.2.0

[WireBaron]

This release adds some bugfixes and optimizations and includes new and refined experimental features.

Experimental Features

• Refinements to hyperloglog including a function to report relative error and fixing the functionality of rollup.
• Introduction of a TopN approximation API. Presently this will only work for integer data, but expect to see further refinements that greatly expand this behavior.
• New map_series and map_data pipeline elements for the time series API that allow uses to provide custom transforms of their time series data. Additionally introduced a |>> pipeline operator for an even more streamlined interface into the new mapping functionality.

Bugfixes/Optimizations

• Made a pass through all toolkit functions to correctly label behavior as immutable and parallel safe. This should improve the optimizations Postgres can apply to toolkit plans, particularly when run in a Timescale multinode cluster.
• Improved handling of internal data structures to reduce extraneous copies of data.

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This discussion was created from the release 1.2.0.