No buffer mode for parquet files which can not be appended to (#771) #307

Job	Run time
get_mm	11s
build (ubi8, 8.1, rpm, redhat/ubi8)	2m 54s
build (ubi9, 9.2, rpm, redhat/ubi9)	2m 55s
build (ubuntu, focal, deb, ubuntu)	2m 58s
build (ubuntu, jammy, deb, ubuntu)	2m 50s
build (ubuntu, lunar, deb, ubuntu)	3m 31s
build (debian, bullseye, deb, debian)	2m 58s
build (debian, buster, deb, debian)	2m 59s
build (debian, bookworm, deb, debian)	3m 3s
	24m 19s

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