Allow to use non-primary columns in crossref tables #1541

Job	Run time
code-style-and-static-analysis	2m 51s
Test Suite (7.4, sqlite, 4-min)	1m 3s
Test Suite (7.4, sqlite, 4-max)	1m 13s
Test Suite (7.4, sqlite, 5-min)	1m 2s
Test Suite (7.4, sqlite, 5-max)	1m 13s
Test Suite (7.4, mysql, 4-min)	1m 17s
Test Suite (7.4, mysql, 4-max)	1m 18s
Test Suite (7.4, mysql, 5-min)	1m 25s
Test Suite (7.4, mysql, 5-max)	1m 24s
Test Suite (7.4, pgsql, 4-min)	1m 17s
Test Suite (7.4, pgsql, 4-max)	1m 16s
Test Suite (7.4, pgsql, 5-min)	1m 14s
Test Suite (7.4, pgsql, 5-max)	1m 27s
Test Suite (7.4, agnostic, 4-min)	42s
Test Suite (7.4, agnostic, 4-max)	33s
Test Suite (7.4, agnostic, 5-min)	45s
Test Suite (7.4, agnostic, 5-max)	43s
Test Suite (8.2, sqlite, 4-max)	51s
Test Suite (8.2, sqlite, 5-min)	52s
Test Suite (8.2, sqlite, 5-max)	54s
Test Suite (8.2, sqlite, 6-min)	54s
Test Suite (8.2, sqlite, 6-max)	58s
Test Suite (8.2, mysql, 4-max)	1m 31s
Test Suite (8.2, mysql, 5-min)	1m 33s
Test Suite (8.2, mysql, 5-max)	1m 31s
Test Suite (8.2, mysql, 6-min)	1m 42s
Test Suite (8.2, mysql, 6-max)	1m 32s
Test Suite (8.2, pgsql, 4-max)	1m 8s
Test Suite (8.2, pgsql, 5-min)	1m 27s
Test Suite (8.2, pgsql, 5-max)	1m 13s
Test Suite (8.2, pgsql, 6-min)	1m 24s
Test Suite (8.2, pgsql, 6-max)	1m 13s
Test Suite (8.2, agnostic, 4-max)	32s
Test Suite (8.2, agnostic, 5-min)	37s
Test Suite (8.2, agnostic, 5-max)	27s
Test Suite (8.2, agnostic, 6-min)	28s
Test Suite (8.2, agnostic, 6-max)	34s
	42m 4s

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