Feat/Add pg_ivm Extension Support

CODEOWNERS

@@ -9,3 +9,6 @@
 
 # wal2json
 /wal2json/ @cloudnative-pg/maintainers @NiccoloFei @solidDoWant
+
+# pg-ivm
+/pg-ivm/ @shusaan @cloudnative-pg/maintainers @NiccoloFei

README.md

@@ -38,6 +38,7 @@ from a trusted, auditable repository
 | :--- | :--- | :--- | :--- |
 | **[pgAudit](pgaudit)** | PostgreSQL audit extension | [github.com/pgaudit/pgaudit](https://github.com/pgaudit/pgaudit) | CNPG maintainers |
 | **[pg_crash](pg-crash)** | **Disruptive** fault injection and chaos engineering extension | [github.com/cybertec-postgresql/pg_crash](https://github.com/cybertec-postgresql/pg_crash) | CNPG maintainers |
+| **[pg_ivm](pg_ivm)** | Incremental View Maintenance for PostgreSQL | [github.com/sraoss/pg_ivm](https://github.com/sraoss/pg_ivm) |
 | **[pgvector](pgvector)** | Vector similarity search for PostgreSQL | [github.com/pgvector/pgvector](https://github.com/pgvector/pgvector) | CNPG maintainers |
 | **[PostGIS](postgis)** | Geospatial database extension for PostgreSQL | [postgis.net/](https://postgis.net/) | CNPG maintainers |
 | **[TimescaleDB Apache-2 Edition](timescaledb-oss)** | Time-series database for PostgreSQL (open source version) | [github.com/timescale/timescaledb/](https://github.com/timescale/timescaledb/) | @shusaan |

pg-ivm/Dockerfile

@@ -0,0 +1,28 @@
+# SPDX-FileCopyrightText: Copyright © contributors to CloudNativePG, established as CloudNativePG a Series of LF Projects, LLC.
+# SPDX-License-Identifier: Apache-2.0
+
+ARG BASE=ghcr.io/cloudnative-pg/postgresql:18-minimal-trixie
+FROM $BASE AS builder
+
+ARG PG_MAJOR
+ARG EXT_VERSION
+
+USER 0
+
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends "postgresql-${PG_MAJOR}-pg-ivm=${EXT_VERSION}"
+
+FROM scratch
+ARG PG_MAJOR
+
+# Licenses
+COPY --from=builder /usr/share/doc/postgresql-${PG_MAJOR}-pg-ivm/copyright /licenses/postgresql-${PG_MAJOR}-pg-ivm/
+
+# Libraries
+COPY --from=builder /usr/lib/postgresql/${PG_MAJOR}/lib/pg_ivm* /lib/
+COPY --from=builder /usr/lib/postgresql/${PG_MAJOR}/lib/bitcode/ /lib/bitcode/
+
+# Share
+COPY --from=builder /usr/share/postgresql/${PG_MAJOR}/extension/pg_ivm* /share/extension/
+
+USER 65532:65532

pg-ivm/README.md

@@ -0,0 +1,84 @@
+# `pg_ivm`
+
+[pg_ivm](https://github.com/sraoss/pg_ivm) is an open-source extension
+that provides **Incremental View Maintenance (IVM)** for PostgreSQL, allowing
+materialized views to be updated incrementally when base tables change.
+
+## Usage
+
+### 1. Add the pg_ivm extension image to your Cluster
+
+Define the `pg_ivm` extension under the `postgresql.extensions` section of
+your `Cluster` resource. For example:
+
+```yaml
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: cluster-pg-ivm
+spec:
+  imageName: ghcr.io/cloudnative-pg/postgresql:18-minimal-trixie
+  instances: 1
+
+  storage:
+    size: 1Gi
+
+  postgresql:
+    extensions:
+    - name: pg_ivm
+      image:
+        # renovate: suite=trixie-pgdg depName=postgresql-18-pg-ivm
+        reference: ghcr.io/cloudnative-pg/pg-ivm:1.13-18-trixie
+```
+
+### 2. Enable the extension in a database
+
+You can install `pg_ivm` in a specific database by creating or updating a
+`Database` resource. For example, to enable it in the `app` database:
+
+```yaml
+apiVersion: postgresql.cnpg.io/v1
+kind: Database
+metadata:
+  name: cluster-pg-ivm-app
+spec:
+  name: app
+  owner: app
+  cluster:
+    name: cluster-pg-ivm
+  extensions:
+  - name: pg_ivm
+    # renovate: suite=trixie-pgdg depName=postgresql-18-pg-ivm extractVersion=^(?<version>\d+\.\d+)
+    version: '1.13'
+```
+
+### 3. Verify installation
+
+Once the database is ready, connect to it with `psql` and run:
+
+```sql
+\dx
+```
+
+You should see `pg_ivm` listed among the installed extensions.
+
+## Maintainers
+
+This container image is maintained by @shuusan.
+
+---
+
+## Licenses and Copyright
+
+This container image contains software that may be licensed under various
+open-source licenses.
+
+All relevant license and copyright information for the `pg_ivm` extension
+and its dependencies are bundled within the image at:
+
+```text
+/licenses/
+```
+
+By using this image, you agree to comply with the terms of the licenses
+contained therein.

pg-ivm/metadata.hcl

@@ -0,0 +1,35 @@
+metadata = {
+  name                     = "pg-ivm"
+  sql_name                 = "pg_ivm"
+  image_name               = "pg-ivm"
+  licenses                 = ["PostgreSQL"]
+  shared_preload_libraries = []
+  postgresql_parameters    = {}
+  extension_control_path   = []
+  dynamic_library_path     = []
+  ld_library_path          = []
+  bin_path                 = []
+  env                      = {}
+  auto_update_os_libs      = false
+  required_extensions      = []
+  create_extension         = true
+
+  versions = {
+    trixie = {
+      "18" = {
+        // renovate: suite=trixie-pgdg depName=postgresql-18-pg-ivm
+        package = "1.13-1.pgdg13+1"
+        // renovate: suite=trixie-pgdg depName=postgresql-18-pg-ivm extractVersion=^(?<version>\d+\.\d+)
+        sql     = "1.13"
+      }
+    }
+    bookworm = {
+      "18" = {
+        // renovate: suite=bookworm-pgdg depName=postgresql-18-pg-ivm
+        package = "1.13-1.pgdg12+1"
+        // renovate: suite=bookworm-pgdg depName=postgresql-18-pg-ivm extractVersion=^(?<version>\d+\.\d+)
+        sql     = "1.13"
+      }
+    }
+  }
+}

pg-ivm/test/chainsaw-test.yaml

@@ -0,0 +1,28 @@
+apiVersion: chainsaw.kyverno.io/v1alpha1
+kind: Test
+metadata:
+  name: verify-pg-ivm-extension
+spec:
+  timeouts:
+    apply: 5s
+    assert: 3m
+    delete: 30s
+  description: Verify pg_ivm extension is properly installed
+  steps:
+  - name: Create a Cluster with the extension
+    try:
+    - apply:
+        file: cluster.yaml
+    - apply:
+        file: database.yaml
+    - assert:
+        file: cluster-assert.yaml
+    - assert:
+        file: database-assert.yaml
+
+  - name: Verify extension is installed
+    try:
+    - apply:
+        file: check-extension.yaml
+    - assert:
+        file: check-extension-assert.yaml

pg-ivm/test/check-extension-assert.yaml

@@ -0,0 +1,6 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: extension-installed
+status:
+  succeeded: 1

pg-ivm/test/check-extension.yaml

@@ -0,0 +1,33 @@
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: extension-installed
+spec:
+  template:
+    spec:
+      restartPolicy: OnFailure
+      containers:
+      - name: data-test
+        env:
+          - name: EXT_VERSION
+            value: ($values.version)
+          - name: DB_URI
+            valueFrom:
+              secretKeyRef:
+                name: (join('-', [$values.name, 'app']))
+                key: uri
+        image: alpine/psql:latest
+        command: ['sh', '-c']
+        args:
+         - |
+           set -e
+           DB_URI=$(echo $DB_URI | sed "s|/\*|/|")
+           test "$(psql "$DB_URI" -tAc "SELECT EXISTS (SELECT FROM pg_catalog.pg_extension WHERE extname = 'pg_ivm' AND extversion = '${EXT_VERSION}')" -q)" = "t"
+           psql "$DB_URI" -c "DROP TABLE IF EXISTS test_ivm CASCADE;"
+           psql "$DB_URI" -c "DROP TABLE IF EXISTS base_table CASCADE;"
+           psql "$DB_URI" -c "CREATE TABLE base_table (id INT PRIMARY KEY, value TEXT);"
+           psql "$DB_URI" -c "INSERT INTO base_table VALUES (1, 'test');"
+           psql "$DB_URI" -c "SELECT pgivm.create_immv('test_ivm', 'SELECT * FROM base_table');"
+           test "$(psql "$DB_URI" -tAc "SELECT COUNT(*) FROM test_ivm" -q)" = "1"
+           psql "$DB_URI" -c "INSERT INTO base_table VALUES (2, 'test2');"
+           test "$(psql "$DB_URI" -tAc "SELECT COUNT(*) FROM test_ivm" -q)" = "2"

pg-ivm/test/cluster-assert.yaml

@@ -0,0 +1,8 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: ($values.name)
+status:
+  readyInstances: 1
+  phase: Cluster in healthy state
+  image: ($values.pg_image)

pg-ivm/test/cluster.yaml

@@ -0,0 +1,15 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: ($values.name)
+spec:
+  imageName: ($values.pg_image)
+  instances: 1
+
+  storage:
+    size: 1Gi
+
+  postgresql:
+    parameters: ($values.postgresql_parameters)
+    shared_preload_libraries: ($values.shared_preload_libraries)
+    extensions: ($values.extensions)

pg-ivm/test/database-assert.yaml

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+apiVersion: postgresql.cnpg.io/v1
+kind: Database
+metadata:
+  name: (join('-', [$values.name, 'app']))
+status:
+  applied: true
+  extensions:
+  - applied: true
+    name: ($values.sql_name)
+  observedGeneration: 1

pg-ivm/test/database.yaml

@@ -0,0 +1,12 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Database
+metadata:
+  name: (join('-', [$values.name, 'app']))
+spec:
+  name: app
+  owner: app
+  cluster:
+    name: ($values.name)
+  extensions:
+  - name: ($values.sql_name)
+    version: ($values.version)