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DolphinDB Release Notes

Release Date : 2019-02-28

Version : 0.92

DolphinDB Server

Linux binary | Windows binary

New Features

  • New functions for calculations on the dimension of rows: rowMin, rowMax, rowCount, rowSum, rowSum2, rowAvg, rowStd, rowVar
  • Extended SQL PIVOT BY clause to make pivoting, null filling and row level reductive operation complete in one step. Right now, "pivot by" can be used together with ffill, fill, and lfill, as well as the following 5 row-dimension functions: rowSum, rowMin, rowMax, rowCount, rowSum2. 
  • New higher order function pcall
  • New function subtuple

Improvements

  • Optimize the performance of return statement to avoid unnecessary data copy

DolphinDB Plugin

DolphinDBPlugin

  • Updated plugin header files