[export-csv] Ensure reasonable memory usage of the export CSV connector #2284
Description
Description
We've witnessed very high memory usage of the export CSV connector during exports, up to more than 30GB (which led to container being killed by Linux' OOM killer).
Even if the export is very demanding, we expect the connector to keep a reasonable maximum memory usage.
Could you please check that the data is not loaded and exported to a file in a single shot, but written chunk by chunk on a temporary file ?