Howdy all! Here in sunny Boulder, Colorado, I was biking with the netCDF dev team to our favorite free-trade organic vegan gluten-free coffee shop, when we started to wonder how strings are stored in a HDF5 file.
We know that strings are stored as VLENS - does that mean that all strings are stored with their length explicitly? If we create a new dataset of VLEN, and write one value to the dataset, leaving the rest untouched, we will get fill values in the rest of the chunk. When those fill values are written, they consist of a bunch of VLENs which contain empty strings. What is actually stored on disk? We recently noticed we can't turn off fill mode with VLENs. Is this why? Thanks! Ed Hartnett
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