feat(postgres): add partitioned table support

.config/nextest.toml

@@ -0,0 +1,6 @@
+[profile.default]
+retries = 2
+slow-timeout = { period = "15s", terminate-after = 4 }
+
+[profile.no-bigquery]
+default-filter = "not (package(etl-destinations) and binary(/bigquery_pipeline/))"

.github/workflows/ci.yml

@@ -90,19 +90,14 @@ jobs:
           sudo apt-get install libpq-dev -y
           ./etl-api/scripts/run_migrations.sh
 
+      - name: Install cargo-nextest
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-nextest
+
       - name: Run Tests
         run: |
-          cargo test \
-            --workspace \
-            --all-features \
-            --no-fail-fast \
-            --exclude etl-destinations \
-          && \
-          cargo test \
-            -p etl-destinations \
-            --no-default-features \
-            --no-fail-fast \
-            --features iceberg
+          cargo nextest run --all-features --no-fail-fast --profile no-bigquery
 
   test-full:
     name: Tests (Full)
@@ -121,6 +116,8 @@ jobs:
 
       - name: Set up Rust
         uses: dtolnay/[email protected]
+        with:
+          components: llvm-tools-preview
 
       - name: Cache Cargo
         uses: Swatinem/rust-cache@v2
@@ -149,8 +146,10 @@ jobs:
           sudo apt-get install libpq-dev -y
           ./etl-api/scripts/run_migrations.sh
 
-      - name: Install cargo-llvm-cov
-        uses: taiki-e/install-action@cargo-llvm-cov
+      - name: Install cargo-llvm-cov and cargo-nextest
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-llvm-cov,cargo-nextest
 
       - name: Set up BigQuery Credentials
         run: |
@@ -161,10 +160,8 @@ jobs:
       - name: Generate Code Coverage
         id: coverage
         run: |
-          cargo llvm-cov test \
-            --workspace --no-fail-fast \
-            --all-features \
-            --lcov --output-path lcov.info
+          cargo llvm-cov nextest --no-fail-fast \
+            --all-features --lcov --output-path lcov.info
 
       - name: Upload Coverage to Coveralls
         uses: coverallsapp/github-action@v2

AGENTS.md

@@ -6,8 +6,8 @@
 - Tests live per crate (`src` unit tests, `tests` integration); benches in `etl-benchmarks/benches/`.
 
 ## Build and Test
-- Build: `cargo build --workspace --all-targets --all-features`.
-- Lint/format: `cargo fmt`; `cargo clippy --all-targets --all-features -- -D warnings`.
+- Build: `just build`.
+- Lint/format: `just fmt; just lint`.
 - Use `ENABLE_TRACING=1` when running integration tests to see the logs.
 - Use `RUST_LOG=[log-level]` if you need to see the logs with a specific log level.
 

docs/how-to/configure-postgres.md

@@ -107,15 +107,17 @@ Publications define which tables and operations to replicate.
 
 ```sql
 -- Create publication for specific tables
-CREATE PUBLICATION my_publication FOR TABLE users, orders;
+CREATE PUBLICATION my_publication FOR TABLE users, orders WITH (publish_via_partition_root = true);
 
 -- Create publication for all tables (use with caution)
-CREATE PUBLICATION all_tables FOR ALL TABLES;
+CREATE PUBLICATION all_tables FOR ALL TABLES WITH (publish_via_partition_root = true);
 
 -- Include only specific operations
-CREATE PUBLICATION inserts_only FOR TABLE users WITH (publish = 'insert');
+CREATE PUBLICATION inserts_only FOR TABLE users WITH (publish = 'insert') WITH (publish_via_partition_root = true);
 ```
 
+`publish_via_partition_root` allows Postgres to treat [partitioned tables](https://www.postgresql.org/docs/current/sql-createpublication.html#SQL-CREATEPUBLICATION-PARAMS-WITH-PUBLISH-VIA-PARTITION-ROOT) as one table in the eyes of logical replication.
+
 ### Managing Publications
 
 ```sql

etl-api/src/db/publications.rs

@@ -43,6 +43,9 @@ pub async fn create_publication(
         }
     }
 
+    // Ensure partitioned tables publish via ancestor/root schema for logical replication
+    query.push_str(" with (publish_via_partition_root = true)");
+
     pool.execute(query.as_str()).await?;
     Ok(())
 }

etl-postgres/src/tokio/test_utils.rs

@@ -61,7 +61,7 @@ impl<G: GenericClient> PgDatabase<G> {
             .collect::<Vec<_>>();
 
         let create_publication_query = format!(
-            "create publication {} for table {}",
+            "create publication {} for table {} with (publish_via_partition_root = true)",
             publication_name,
             table_names.join(", ")
         );

etl/src/replication/client.rs

@@ -411,24 +411,52 @@ impl PgReplicationClient {
         &self,
         publication_name: &str,
     ) -> EtlResult<Vec<TableId>> {
-        let publication_query = format!(
-            "select c.oid from pg_publication_tables pt 
-         join pg_class c on c.relname = pt.tablename 
-         join pg_namespace n on n.oid = c.relnamespace AND n.nspname = pt.schemaname 
-         where pt.pubname = {};",
-            quote_literal(publication_name)
+        let query = format!(
+            r#"
+            with recursive has_rel as (
+                select exists(
+                    select 1
+                    from pg_publication_rel r
+                    join pg_publication p on p.oid = r.prpubid
+                    where p.pubname = {pub}
+                ) as has
+            ),
+            pub_tables as (
+                select r.prrelid as oid
+                from pg_publication_rel r
+                join pg_publication p on p.oid = r.prpubid
+                where p.pubname = {pub} and (select has from has_rel)
+                union all
+                select c.oid
+                from pg_publication_tables pt
+                join pg_class c on c.relname = pt.tablename
+                where pt.pubname = {pub} and not (select has from has_rel)
+            ),
+            recurse(relid) as (
+                select oid from pub_tables
+                union all
+                select i.inhparent
+                from pg_inherits i
+                join recurse r on r.relid = i.inhrelid
+            )
+            select distinct relid as oid
+            from recurse r
+            where not exists (
+                select 1 from pg_inherits i where i.inhrelid = r.relid
+            );
+            "#,
+            pub = quote_literal(publication_name)
         );
 
-        let mut table_ids = vec![];
-        for msg in self.client.simple_query(&publication_query).await? {
+        let mut roots = vec![];
+        for msg in self.client.simple_query(&query).await? {
             if let SimpleQueryMessage::Row(row) = msg {
-                // For the sake of simplicity, we refer to the table oid as table id.
                 let table_id = Self::get_row_value::<TableId>(&row, "oid", "pg_class").await?;
-                table_ids.push(table_id);
+                roots.push(table_id);
             }
         }
 
-        Ok(table_ids)
+        Ok(roots)
     }
 
     /// Starts a logical replication stream from the specified publication and slot.
@@ -662,7 +690,8 @@ impl PgReplicationClient {
                         when 0 then true
                         else (a.attnum in (select * from pub_attrs))
                         end
-                    )",
+                    )"
+                    .to_string(),
                 )
             } else {
                 // Postgres 14 or earlier or unknown, fallback to no column-level filtering
@@ -677,20 +706,65 @@ impl PgReplicationClient {
                         )",
                         publication = quote_literal(publication),
                     ),
-                    "and (select count(*) from pub_table) > 0",
+                    format!(
+                        "and ((select count(*) from pub_table) > 0 or exists(
+                            -- Also allow if parent table is in publication (for partitioned tables)
+                            select 1 from pg_inherits i
+                            join pg_publication_rel r on r.prrelid = i.inhparent
+                            join pg_publication p on p.oid = r.prpubid
+                            where i.inhrelid = {table_id} and p.pubname = {publication}
+                        ))",
+                        publication = quote_literal(publication),
+                    ),
                 )
             }
         } else {
-            ("".into(), "")
+            ("".to_string(), "".to_string())
+        };
+
+        let has_pub_cte = !pub_cte.is_empty();
+
+        let cte_prefix = if has_pub_cte {
+            // If there's already a pub_cte WITH clause, add our CTEs to it with a comma
+            format!("{pub_cte},")
+        } else {
+            // If no pub_cte, start our own WITH clause (no need for RECURSIVE)
+            "with ".to_string()
         };
 
         let column_info_query = format!(
-            "{pub_cte}
-            select a.attname,
+            "{cte_prefix}
+            -- Find direct parent of current table (if it's a partition)
+            direct_parent as (
+                select i.inhparent as parent_oid
+                from pg_inherits i 
+                where i.inhrelid = {table_id}::oid
+                limit 1
+            ),
+            -- Get parent table's primary key columns
+            parent_pk_cols as (
+                select array_agg(a.attname order by x.n) as pk_column_names
+                from pg_constraint con
+                join unnest(con.conkey) with ordinality as x(attnum, n) on true
+                join pg_attribute a on a.attrelid = con.conrelid and a.attnum = x.attnum
+                join direct_parent dp on con.conrelid = dp.parent_oid
+                where con.contype = 'p'
+                group by con.conname
+            )
+            SELECT a.attname,
                 a.atttypid,
                 a.atttypmod,
                 a.attnotnull,
-                coalesce(i.indisprimary, false) as primary
+                case 
+                    -- Direct primary key on this relation
+                    when coalesce(i.indisprimary, false) = true then true
+                    -- Inherit primary key from parent partitioned table if column name matches
+                    when exists (
+                        select 1 from parent_pk_cols pk 
+                        where a.attname = any(pk.pk_column_names)
+                    ) then true
+                    else false
+                end as primary
             from pg_attribute a
             left join pg_index i
                 on a.attrelid = i.indrelid
@@ -807,9 +881,9 @@ impl PgReplicationClient {
             )
         } else {
             format!(
-                r#"copy {} ({}) to stdout with (format text);"#,
-                table_name.as_quoted_identifier(),
+                r#"copy (select {} from {}) to stdout with (format text);"#,
                 column_list,
+                table_name.as_quoted_identifier(),
             )
         };
 

etl/src/test_utils/test_schema.rs

@@ -127,6 +127,77 @@ pub async fn setup_test_database_schema<G: GenericClient>(
     }
 }
 
+/// Creates a partitioned table with the given name and partitions.
+///
+/// This function creates:
+/// 1. A parent partitioned table with a primary key
+/// 2. Several child partitions based on the provided partition specifications
+///
+/// Returns the table ID of the parent table and a list of partition table IDs.
+pub async fn create_partitioned_table<G: GenericClient>(
+    database: &PgDatabase<G>,
+    table_name: TableName,
+    partition_specs: &[(&str, &str)], // (partition_name, partition_constraint)
+) -> Result<(TableId, Vec<TableId>), tokio_postgres::Error> {
+    let create_parent_query = format!(
+        "create table {} (
+            id bigserial,
+            data text NOT NULL,
+            partition_key integer NOT NULL,
+            primary key (id, partition_key)
+        ) partition by range (partition_key)",
+        table_name.as_quoted_identifier()
+    );
+
+    database.run_sql(&create_parent_query).await?;
+
+    let parent_row = database
+        .client
+        .as_ref()
+        .unwrap()
+        .query_one(
+            "select c.oid from pg_class c join pg_namespace n on n.oid = c.relnamespace 
+             where n.nspname = $1 and c.relname = $2",
+            &[&table_name.schema, &table_name.name],
+        )
+        .await?;
+
+    let parent_table_id: TableId = parent_row.get(0);
+    let mut partition_table_ids = Vec::new();
+
+    for (partition_name, partition_constraint) in partition_specs {
+        let partition_table_name = TableName::new(
+            table_name.schema.clone(),
+            format!("{}_{}", table_name.name, partition_name),
+        );
+
+        let create_partition_query = format!(
+            "create table {} partition of {} for values {}",
+            partition_table_name.as_quoted_identifier(),
+            table_name.as_quoted_identifier(),
+            partition_constraint
+        );
+
+        database.run_sql(&create_partition_query).await?;
+
+        let partition_row = database
+            .client
+            .as_ref()
+            .unwrap()
+            .query_one(
+                "select c.oid from pg_class c join pg_namespace n on n.oid = c.relnamespace 
+                 where n.nspname = $1 and c.relname = $2",
+                &[&partition_table_name.schema, &partition_table_name.name],
+            )
+            .await?;
+
+        let partition_table_id: TableId = partition_row.get(0);
+        partition_table_ids.push(partition_table_id);
+    }
+
+    Ok((parent_table_id, partition_table_ids))
+}
+
 /// Inserts users data into the database for testing purposes.
 pub async fn insert_users_data<G: GenericClient>(
     client: &mut PgDatabase<G>,

etl/src/types/mod.rs

@@ -13,7 +13,7 @@ pub use event::*;
 pub use pipeline::*;
 pub use table_row::*;
 
-pub use crate::conversions::numeric::PgNumeric;
+pub use crate::conversions::numeric::{PgNumeric, Sign};
 
 // Re-exports.
 pub use etl_postgres::types::*;