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Grafbase next #11
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Grafbase next #11
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We'd like to check our patches.
This patch was implemented by Petros Angelatos and Jeff Davis to support physical and logical replication in rust-postgres (see sfackler#752). The original PR never made it to the upstream, but we (Neon) still use it in our own fork of rust-postgres. The following commits were squashed together: * Image configuration updates. * Make simple_query::encode() pub(crate). * decoding logic for replication protocol * Connection string config for replication. * add copy_both_simple method * helper ReplicationStream type for replication protocol This can be optionally used with a CopyBoth stream to decode the replication protocol * decoding logic for logical replication protocol * helper LogicalReplicationStream type to decode logical replication * add postgres replication integration test * add simple query versions of copy operations * replication: use SystemTime for timestamps at API boundary Co-authored-by: Petros Angelatos <[email protected]> Co-authored-by: Jeff Davis <[email protected]> Co-authored-by: Dmitry Ivanov <[email protected]>
According to https://datatracker.ietf.org/doc/html/rfc5802#section-3, SCRAM protocol explicitly allows client to use a `ClientKey` & `ServerKey` pair instead of a password to perform authentication. This is also useful for proxy implementations which would like to leverage `rust-postgres`. This patch adds the ability to do that.
We need this to enable parameter forwarding in Neon Proxy. This is less than ideal, but we'll probably revert the patch once a proper fix has been implemented.
That way our proxy can take back stream for proxying.
Add query_raw_txt client method It takes all the extended protocol params as text and passes them to postgres to sort out types. With that we can avoid situations when postgres derived different type compared to what was passed in arguments. There is also propare_typed method, but since we receive data in text format anyway it makes more sense to avoid dealing with types in params. This way we also can save on roundtrip and send Parse+Bind+Describe+Execute right away without waiting for params description before Bind. Use text protocol for responses -- that allows to grab postgres-provided serializations for types. Catch command tag. Expose row buffer size and add `max_backend_message_size` option to prevent handling and storing in memory large messages from the backend. Co-authored-by: Arthur Petukhovsky <[email protected]>
Previous coding only allowed passing vector of text values as params, but that does not allow to distinguish between nulls and 4-byte strings with "null" written in them. Change query_raw_txt params argument to accept Vec<Option<String>> instead.
As we are trying to match client-side behaviour with node-postgres we need to return this fields as well because node-postgres returns them.
Signed-off-by: Alex Chi <[email protected]>
* refactor query_raw_txt to use a pre-prepared statement * expose ready_status on RowStream
* add ready_status on simple queries * add correct socket2 features
This is useful / needed to build a Rust client for the Pageserver's GetPage@LSN API, which uses CopyBoth mode.
Added getter for process_id
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