HPCC-30583 Fix parquet column reads #9390

Job	Run time
check-skip	21s
Build platform and regress setup	1h 0m 36s
unittests	3m 59s
regression-jobs (hthor, [a-d]*.ecl)	10m 31s
eclwatch-ui-tests	3m 19s
regression-jobs (hthor, [e-h]*.ecl)	4m 45s
regression-jobs (hthor, [i-l]*.ecl)	7m 47s
regression-jobs (hthor, [m-q]*.ecl)	4m 57s
regression-jobs (hthor, [r-u]*.ecl, teststdlibrary.ecl)	14m 11s
regression-jobs (hthor, [v-z]*.ecl)	5m 14s
regression-jobs (thor, [a-d]*.ecl)	9m 15s
regression-jobs (thor, [e-h]*.ecl)	11m 26s
regression-jobs (thor, [i-l]*.ecl)	20m 52s
regression-jobs (thor, [m-q]*.ecl)	5m 42s
regression-jobs (thor, [r-u]*.ecl, teststdlibrary.ecl)	17m 16s
regression-jobs (thor, [v-z]*.ecl)	5m 1s
regression-jobs (roxie, [a-d]*.ecl)	10m 51s
regression-jobs (roxie, [e-h]*.ecl)	6m 17s
regression-jobs (roxie, [i-l]*.ecl)	8m 25s
regression-jobs (roxie, [m-q]*.ecl)	6m 45s
regression-jobs (roxie, [r-u]*.ecl, teststdlibrary.ecl)	16m 39s
regression-jobs (roxie, [v-z]*.ecl)	5m 44s
regression-jobs (hthor, teststdlibrary.ecl)	5m 17s
regression-jobs (thor, teststdlibrary.ecl)	7m 42s
regression-jobs (roxie, teststdlibrary.ecl)	4m 43s
	4h 17m 35s

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