Get collections search fields #1521

Job	Run time
Python 3.10 testing with elasticsearch7	2m 22s
Python 3.9 testing with elasticsearch7	2m 16s
Python 3.10 testing with elasticsearch8	2m 21s
Python 3.11 testing with elasticsearch7	2m 39s
Python 3.10 testing with opensearch	2m 17s
Python 3.9 testing with elasticsearch8	2m 19s
Python 3.12 testing with elasticsearch7	2m 20s
Python 3.11 testing with elasticsearch8	2m 41s
Python 3.12 testing with elasticsearch8	2m 10s
Python 3.13 testing with opensearch	2m 13s
Python 3.11 testing with opensearch	2m 28s
Python 3.13 testing with elasticsearch8	2m 28s
Python 3.9 testing with opensearch	2m 16s
Python 3.12 testing with opensearch	2m 14s
Python 3.13 testing with elasticsearch7	2m 12s
	35m 16s

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