feat: add Vertica adapter support

.github/workflows/test-all-warehouses.yml

@@ -102,6 +102,7 @@ jobs:
             spark,
             fabric,
             sqlserver,
+            vertica,
           ]
     uses: ./.github/workflows/test-warehouse.yml
     with:

.github/workflows/test-warehouse.yml

@@ -20,6 +20,7 @@ on:
           - dremio
           - fabric
           - sqlserver
+          - vertica
       elementary-ref:
         type: string
         required: false
@@ -167,6 +168,12 @@ jobs:
         run: |
           docker compose up -d --wait sqlserver
 
+      - name: Start Vertica
+        if: inputs.warehouse-type == 'vertica'
+        working-directory: ${{ env.E2E_DBT_PROJECT_DIR }}
+        run: |
+          docker compose up -d --wait vertica
+
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
@@ -185,11 +192,21 @@ jobs:
           sudo ACCEPT_EULA=Y apt-get install -y msodbcsql18 unixodbc-dev
 
       - name: Install dbt
+        if: inputs.warehouse-type != 'vertica'
         run: >
           pip install
           "dbt-core${{ inputs.dbt-version && format('=={0}', inputs.dbt-version) }}"
           "dbt-${{ (inputs.warehouse-type == 'databricks_catalog' && 'databricks') || (inputs.warehouse-type == 'athena' && 'athena-community') || (inputs.warehouse-type == 'dremio' && 'dremio') || inputs.warehouse-type }}${{ (inputs.warehouse-type == 'spark' && '[PyHive]') || '' }}${{ inputs.dbt-version && format('~={0}', inputs.dbt-version) }}"
 
+      # dbt-vertica pins dbt-core~=1.8 which lacks the 'arguments' attribute
+      # used by newer dbt-core.  Install dbt-vertica without deps first, then
+      # install the latest compatible dbt-core separately.
+      - name: Install dbt (Vertica)
+        if: inputs.warehouse-type == 'vertica'
+        run: |
+          pip install --no-deps dbt-vertica
+          pip install "dbt-core${{ inputs.dbt-version && format('=={0}', inputs.dbt-version) }}"
+
       - name: Install Elementary
         run: |
           pip install -r dev-requirements.txt
@@ -204,7 +221,7 @@ jobs:
           # This enables caching the seeded database state between runs.
           IS_DOCKER=false
           case "${{ inputs.warehouse-type }}" in
-            postgres|clickhouse|trino|dremio|duckdb|spark|sqlserver) IS_DOCKER=true ;;
+            postgres|clickhouse|trino|dremio|duckdb|spark|sqlserver|vertica) IS_DOCKER=true ;;
           esac
 
           if [ "$IS_DOCKER" = "true" ]; then

elementary/clients/dbt/transient_errors.py

@@ -120,6 +120,12 @@
     ),
     "fabric": _TSQL_TRANSIENT,
     "sqlserver": _TSQL_TRANSIENT,
+    "vertica": (
+        "connection timed out",
+        "could not connect to the server",
+        "ssl syscall error",
+        "no transaction in progress",
+    ),
 }
 
 # Pre-computed union of all adapter-specific patterns for the fallback path

pyproject.toml

@@ -58,6 +58,7 @@ dbt-duckdb = {version = ">=1.5.0,<2.0.0", optional = true}
 dbt-dremio = {version = ">=1.5.0,<2.0.0", optional = true}
 dbt-fabric = {version = ">=1.4,<2.0.0", optional = true}
 dbt-sqlserver = {version = ">=1.4,<2.0.0", optional = true}
+dbt-vertica = {version = ">=1.7,<2.0.0", optional = true}
 [tool.poetry.extras]
 snowflake = ["dbt-snowflake"]
 bigquery = ["dbt-bigquery"]
@@ -72,7 +73,8 @@ duckdb = ["dbt-duckdb"]
 dremio = ["dbt-dremio"]
 fabric = ["dbt-fabric"]
 sqlserver = ["dbt-sqlserver"]
-all = ["dbt-snowflake", "dbt-bigquery", "dbt-redshift", "dbt-postgres", "dbt-databricks", "dbt-spark", "dbt-clickhouse", "dbt-athena-community", "dbt-trino", "dbt-duckdb", "dbt-dremio", "dbt-fabric", "dbt-sqlserver"]
+vertica = ["dbt-vertica"]
+all = ["dbt-snowflake", "dbt-bigquery", "dbt-redshift", "dbt-postgres", "dbt-databricks", "dbt-spark", "dbt-clickhouse", "dbt-athena-community", "dbt-trino", "dbt-duckdb", "dbt-dremio", "dbt-fabric", "dbt-sqlserver", "dbt-vertica"]
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]

tests/e2e_dbt_project/docker-compose.yml

@@ -290,6 +290,36 @@ services:
       timeout: 5s
       retries: 10
 
+  # ── Vertica CE ────────────────────────────────────────────────────
+  vertica:
+    image: ghcr.io/ratiopbc/vertica-ce
+    container_name: vertica
+    ports:
+      - "127.0.0.1:5433:5433"
+    environment:
+      APP_DB_USER: dbadmin
+      APP_DB_PASSWORD: vertica
+      TZ: "UTC"
+      VERTICA_DB_NAME: elementary_tests
+      VMART_ETL_SCRIPT: ""
+    deploy:
+      mode: global
+    ulimits:
+      nofile:
+        soft: 65536
+        hard: 65536
+    volumes:
+      - vertica-data:/data
+    healthcheck:
+      test:
+        [
+          "CMD-SHELL",
+          "/opt/vertica/bin/vsql -U dbadmin -w vertica -c 'SELECT 1;'",
+        ]
+      interval: 5s
+      timeout: 5s
+      retries: 10
+
   # ── SQL Server (for Fabric / SQL Server adapters) ─────────────────
   sqlserver:
     image: mcr.microsoft.com/mssql/server:2022-latest
@@ -316,3 +346,4 @@ volumes:
   dremio-minio-data:
   spark-warehouse:
   spark-hive-metastore:
+  vertica-data:

tests/profiles/profiles.yml.j2

@@ -73,6 +73,16 @@ elementary_tests:
       trust_cert: true
       threads: 4
 
+    vertica: &vertica
+      type: vertica
+      host: 127.0.0.1
+      port: 5433
+      username: dbadmin
+      password: vertica
+      database: elementary_tests
+      schema: {{ schema_name }}
+      threads: 4
+
     # ── Cloud targets (secrets substituted at CI time) ─────────────────
 
     fabric: &fabric
@@ -148,7 +158,7 @@ elementary_tests:
 elementary:
   target: postgres
   outputs:
-{%- set targets = ['postgres', 'clickhouse', 'trino', 'dremio', 'duckdb', 'spark', 'fabric', 'sqlserver', 'snowflake', 'bigquery', 'redshift', 'databricks_catalog', 'athena'] %}
+{%- set targets = ['postgres', 'clickhouse', 'trino', 'dremio', 'duckdb', 'spark', 'fabric', 'sqlserver', 'vertica', 'snowflake', 'bigquery', 'redshift', 'databricks_catalog', 'athena'] %}
 {%- for t in targets %}
     {{ t }}:
       <<: *{{ t }}