refactor: adjust dynamic schema api to support composite key #2150

Job	Run time
Rust fmt	25s
Rust project check (windows-latest)	6m 37s
Code coverage	2m 19s
Rust project check (ubuntu-latest)	2m 31s
Rust exmaples	56s
Rust project check (macos-latest)	2m 8s
	14m 56s

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