Phil Evans reported a problem that when combining two event files a string column in the output was garbage for all rows copied from the second input file. This happened because the input files had differing WCS so the slow copy method had to be used and this read all columns as doubles. Fixed the problem by checking for string columns and reading/writing them as strings. Note that strings can have a maximum length of 256 characters. Fix is v4.73.
Keywords: HEAsoft, extractor