keep read_callable callback for queries #204

Job	Run time
build_asan	4m 19s
build (ubuntu-latest, 3.10.11, false)	30s
build (ubuntu-latest, 3.10.11, true)	35s
build (ubuntu-latest, 3.8.17, false)	33s
build (ubuntu-latest, 3.8.17, true)	30s
build (ubuntu-20.04, 3.6.8, false)	21s
build (ubuntu-20.04, 3.6.8, true)	30s
build (ubuntu-latest, pypy-3.7, false)	30s
build (ubuntu-latest, pypy-3.7, true)	26s
build (macos-latest, 3.10.11, false)	56s
build (macos-latest, 3.8.17, false)	53s
build (macos-latest, 3.6.8, false)	2m 21s
build (macos-latest, pypy-3.7, false)	37s
build (windows-latest, 3.10.11, false)	1m 58s
build (windows-latest, 3.8.10, false)	1m 37s
build (windows-latest, 3.6.8, false)	2m 20s
build (windows-latest, pypy-3.7, false)	2m 9s
	21m 5s

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