[gql][indexer] index chain identifier into its own table (MystenLabs#…

…18825)

This PR puts chain identifier into its own table so that queries of
chain identifier does not depend on the existence of checkpoint 0 in the
db, which may be pruned away.

Tested against devnet locally and added a gql e2e test.

---

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- [ ] Protocol:
- [ ] Nodes (Validators and Full nodes):
- [ ] Indexer:
- [ ] JSON-RPC:
- [x] GraphQL: Added a way to always have `chainIdentifier` query return
the correct chain ID even when pruning is enabled.
- [ ] CLI:
- [ ] Rust SDK:
- [ ] REST API:

---------

Co-authored-by: stefan-mysten <135084671+stefan-mysten@users.noreply.github.com>
Co-authored-by: Ashok Menon <ashok@mystenlabs.com>

crates/sui-graphql-e2e-tests/tests/epoch/chain_identifier.exp

@@ -0,0 +1,16 @@
+processed 3 tasks
+
+init:
+C: object(0,0)
+
+task 1, line 7:
+//# create-checkpoint
+Checkpoint created: 1
+
+task 2, lines 9-12:
+//# run-graphql
+Response: {
+  "data": {
+    "chainIdentifier": "8f58ad28"
+  }
+}

crates/sui-graphql-e2e-tests/tests/epoch/chain_identifier.move

@@ -0,0 +1,12 @@
+// Copyright (c) Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+//# init --protocol-version 48 --simulator --accounts C
+
+
+//# create-checkpoint
+
+//# run-graphql
+{
+    chainIdentifier
+}

crates/sui-graphql-rpc/src/types/chain_identifier.rs

@@ -6,8 +6,8 @@ use crate::{
     error::Error,
 };
 use async_graphql::*;
-use diesel::{ExpressionMethods, QueryDsl};
-use sui_indexer::schema::checkpoints;
+use diesel::QueryDsl;
+use sui_indexer::schema::chain_identifier;
 use sui_types::{
     digests::ChainIdentifier as NativeChainIdentifier, messages_checkpoint::CheckpointDigest,
 };
@@ -17,15 +17,11 @@ pub(crate) struct ChainIdentifier;
 impl ChainIdentifier {
     /// Query the Chain Identifier from the DB.
     pub(crate) async fn query(db: &Db) -> Result<NativeChainIdentifier, Error> {
-        use checkpoints::dsl;
+        use chain_identifier::dsl;
 
         let digest_bytes = db
             .execute(move |conn| {
-                conn.first(move || {
-                    dsl::checkpoints
-                        .select(dsl::checkpoint_digest)
-                        .order_by(dsl::sequence_number.asc())
-                })
+                conn.first(move || dsl::chain_identifier.select(dsl::checkpoint_digest))
             })
             .await
             .map_err(|e| Error::Internal(format!("Failed to fetch genesis digest: {e}")))?;

crates/sui-indexer/migrations/pg/2024-07-13-003534_chain_identifier/down.sql

@@ -0,0 +1,2 @@
+-- This file should undo anything in `up.sql`
+DROP TABLE IF EXISTS chain_identifier;

crates/sui-indexer/migrations/pg/2024-07-13-003534_chain_identifier/up.sql

@@ -0,0 +1,6 @@
+-- Your SQL goes here
+CREATE TABLE chain_identifier
+(
+    checkpoint_digest   BYTEA    NOT NULL,
+    PRIMARY KEY(checkpoint_digest)
+);

crates/sui-indexer/src/models/checkpoints.rs

@@ -9,9 +9,15 @@ use sui_types::digests::CheckpointDigest;
 use sui_types::gas::GasCostSummary;
 
 use crate::errors::IndexerError;
-use crate::schema::checkpoints;
+use crate::schema::{chain_identifier, checkpoints, pruner_cp_watermark};
 use crate::types::IndexedCheckpoint;
 
+#[derive(Queryable, Insertable, Selectable, Debug, Clone, Default)]
+#[diesel(table_name = chain_identifier)]
+pub struct StoredChainIdentifier {
+    pub checkpoint_digest: Vec<u8>,
+}
+
 #[derive(Queryable, Insertable, Selectable, Debug, Clone, Default)]
 #[diesel(table_name = checkpoints)]
 pub struct StoredCheckpoint {

crates/sui-indexer/src/schema.rs

@@ -2,6 +2,12 @@
 // SPDX-License-Identifier: Apache-2.0
 // @generated automatically by Diesel CLI.
 
+diesel::table! {
+    chain_identifier (checkpoint_digest) {
+        checkpoint_digest -> Bytea,
+    }
+}
+
 diesel::table! {
     checkpoints (sequence_number) {
         sequence_number -> Int8,
@@ -276,6 +282,7 @@ diesel::table! {
 macro_rules! for_all_tables {
     ($action:path) => {
         $action!(
+            chain_identifier,
             checkpoints,
             epochs,
             events,

crates/sui-indexer/src/schema/mod.rs

@@ -0,0 +1,80 @@
+// Copyright (c) Mysten Labs, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+#![allow(clippy::all)]
+
+#[cfg(feature = "mysql-feature")]
+#[cfg(not(feature = "postgres-feature"))]
+mod mysql;
+
+#[cfg(feature = "postgres-feature")]
+mod pg;
+
+#[cfg(feature = "postgres-feature")]
+mod inner {
+    pub use crate::schema::pg::chain_identifier;
+    pub use crate::schema::pg::checkpoints;
+    pub use crate::schema::pg::display;
+    pub use crate::schema::pg::epochs;
+    pub use crate::schema::pg::events;
+    pub use crate::schema::pg::objects;
+    pub use crate::schema::pg::objects_history;
+    pub use crate::schema::pg::objects_snapshot;
+    pub use crate::schema::pg::packages;
+    pub use crate::schema::pg::pruner_cp_watermark;
+    pub use crate::schema::pg::transactions;
+    pub use crate::schema::pg::tx_calls;
+    pub use crate::schema::pg::tx_changed_objects;
+    pub use crate::schema::pg::tx_digests;
+    pub use crate::schema::pg::tx_input_objects;
+    pub use crate::schema::pg::tx_recipients;
+    pub use crate::schema::pg::tx_senders;
+}
+
+#[cfg(feature = "mysql-feature")]
+#[cfg(not(feature = "postgres-feature"))]
+mod inner {
+    pub use crate::schema::mysql::chain_identifier;
+    pub use crate::schema::mysql::checkpoints;
+    pub use crate::schema::mysql::display;
+    pub use crate::schema::mysql::epochs;
+    pub use crate::schema::mysql::events;
+    pub use crate::schema::mysql::objects;
+    pub use crate::schema::mysql::objects_history;
+    pub use crate::schema::mysql::objects_snapshot;
+    pub use crate::schema::mysql::packages;
+    pub use crate::schema::mysql::pruner_cp_watermark;
+    pub use crate::schema::mysql::transactions;
+    pub use crate::schema::mysql::tx_calls;
+    pub use crate::schema::mysql::tx_changed_objects;
+    pub use crate::schema::mysql::tx_digests;
+    pub use crate::schema::mysql::tx_input_objects;
+    pub use crate::schema::mysql::tx_recipients;
+    pub use crate::schema::mysql::tx_senders;
+}
+
+pub use inner::chain_identifier;
+pub use inner::checkpoints;
+pub use inner::display;
+pub use inner::epochs;
+pub use inner::events;
+pub use inner::objects;
+pub use inner::objects_history;
+pub use inner::objects_snapshot;
+pub use inner::packages;
+pub use inner::pruner_cp_watermark;
+pub use inner::transactions;
+pub use inner::tx_calls;
+pub use inner::tx_changed_objects;
+pub use inner::tx_digests;
+pub use inner::tx_input_objects;
+pub use inner::tx_recipients;
+pub use inner::tx_senders;
+
+// Postgres only tables
+#[cfg(feature = "postgres-feature")]
+pub use crate::schema::pg::events_partition_0;
+#[cfg(feature = "postgres-feature")]
+pub use crate::schema::pg::objects_history_partition_0;
+#[cfg(feature = "postgres-feature")]
+pub use crate::schema::pg::transactions_partition_0;