Hi Everyone,
We’re trying to solve a problem that relies on BigSerial and txid (as returned by txid_current() ) values being issued consistently.
Is it possible for two transactions to interleave their issuance of these two variables?
For example:
Schema:
CREATE TABLE EXAMPLE(
offset bigint PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY NOT NULL,
txid BIGINT NOT NULL DEFAULT 1
);
Insert statement:
"INSERT INTO EVENTS (txid) VALUES (txid_current());";
Prior to transactions executing offset is 10 and txid is 1000.
Transaction 1 and 2 occur concurrently.
Is it possible for transaction 1 to be issued txid 1001 and offset 12 and transaction 2 to be issued txid 1002 and offset 11?
Any help would be much appreciated.
Regards,
Adam
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