Can txn read future data?

[crwen]

Question

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I know txn can not write future data, but can it read future data?

let txn = db.transaction().await;

let mut txn_future = db.transaction().await;
txn_future.insert("1");
txn_future.commit().await.unwrap();

// can txn get "1" ?
txn.get("1").await.unwrap();

[ethe]

No, it can't.

[crwen]

So the MergeStream should add a read_ts field, so that it can skip those data with larger timestamps

tonbo/src/stream/merge.rs

Lines 72 to 76 in 2e2c948

	if let Some(buf) = this.buf {
	if buf.key().value == peeked.entry.key().value {
	continue;
	}
	}

[ethe]

Yes, I think so.