feat: distinguish between different read paths #13596

Job	Run time
Toml Check	17s
Build GreptimeDB binaries (ubuntu-20.04)	3m 58s
Check (windows-latest)	6m 49s
Check (ubuntu-20.04)	1m 23s
Clippy	2m 22s
coverage	10m 33s
Rustfmt	31s
Spell Check with Typos	15s
Sqlness Test with Kafka Wal (ubuntu-20.04)	3m 11s
Compatibility Test	30s
Sqlness Test (ubuntu-20.04)	1m 43s
	31m 32s

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