Feat: Add Doris adapter

.circleci/continue_config.yml

@@ -285,6 +285,7 @@ workflows:
           matrix:
             parameters:
               engine:
+                - doris
                 - duckdb
                 - postgres
                 - mysql

.circleci/wait-for-db.sh

@@ -34,6 +34,34 @@ clickhouse_ready() {
     probe_port 8123
 }
 
+doris_ready() {
+    probe_port 9030
+
+    echo "Checking for 3 alive Doris backends..."
+    sleep 15
+
+    while true; do
+        echo "Checking Doris backends..."
+        ALIVE_BACKENDS=$(docker exec -i doris-fe-01 mysql -h127.0.0.1 -P9030 -uroot -e "show backends \G" | grep -c "^ *Alive: true$")
+
+        # fallback value if failed to get number
+        if ! [[ "$ALIVE_BACKENDS" =~ ^[0-9]+$ ]]; then
+            echo "WARN: Unable to parse number of alive backends, got: '$ALIVE_BACKENDS'"
+            ALIVE_BACKENDS=0
+        fi
+
+        echo "Found $ALIVE_BACKENDS alive backends"
+
+        if [ "$ALIVE_BACKENDS" -ge 3 ]; then
+            echo "Doris has 3 or more alive backends"
+            break
+        fi
+
+        echo "Waiting for more backends to become alive..."
+        sleep 5
+    done
+}
+
 postgres_ready() {
     probe_port 5432
 }

.readthedocs.yaml

@@ -6,7 +6,7 @@ build:
     python: "3.10"
   jobs:
     pre_build:
-      - pip install -e ".[athena,azuresql,bigframes,bigquery,clickhouse,databricks,dbt,dlt,gcppostgres,github,llm,mssql,mysql,mwaa,postgres,redshift,slack,snowflake,trino,web,risingwave]"
+      - pip install -e ".[athena,azuresql,bigframes,bigquery,clickhouse,databricks,dbt,dlt,doris,gcppostgres,github,llm,mssql,mysql,mwaa,postgres,redshift,slack,snowflake,trino,web,risingwave]"
       - make api-docs
 
 mkdocs:

Makefile

@@ -196,6 +196,9 @@ trino-test: engine-trino-up
 risingwave-test: engine-risingwave-up
 	pytest -n auto -m "risingwave" --reruns 3 --junitxml=test-results/junit-risingwave.xml
 
+doris-test: engine-doris-up
+	pytest -n auto -m "doris" --reruns 3 --junitxml=test-results/junit-doris.xml
+
 #################
 # Cloud Engines #
 #################

docs/concepts/models/overview.md

@@ -181,6 +181,7 @@ This table lists each engine's support for `TABLE` and `VIEW` object comments:
 | BigQuery      | Y                | Y               |
 | ClickHouse    | Y                | Y               |
 | Databricks    | Y                | Y               |
+| Doris         | Y                | Y               |
 | DuckDB <=0.9  | N                | N               |
 | DuckDB >=0.10 | Y                | Y               |
 | MySQL         | Y                | Y               |

docs/guides/configuration.md

@@ -908,6 +908,7 @@ These pages describe the connection configuration options for each execution eng
 * [Athena](../integrations/engines/athena.md)
 * [BigQuery](../integrations/engines/bigquery.md)
 * [Databricks](../integrations/engines/databricks.md)
+* [Doris](../integrations/engines/doris.md)
 * [DuckDB](../integrations/engines/duckdb.md)
 * [Fabric](../integrations/engines/fabric.md)
 * [MotherDuck](../integrations/engines/motherduck.md)
@@ -950,6 +951,7 @@ Unsupported state engines, even for development:
 * [ClickHouse](../integrations/engines/clickhouse.md)
 * [Spark](../integrations/engines/spark.md)
 * [Trino](../integrations/engines/trino.md)
+* [Doris](../integrations/engines/doris.md)
 
 This example gateway configuration uses Snowflake for the data warehouse connection and Postgres for the state backend connection:
 

docs/guides/connections.md

@@ -81,6 +81,7 @@ default_gateway: local_db
 
 * [BigQuery](../integrations/engines/bigquery.md)
 * [Databricks](../integrations/engines/databricks.md)
+* [Doris](../integrations/engines/doris.md)
 * [DuckDB](../integrations/engines/duckdb.md)
 * [MotherDuck](../integrations/engines/motherduck.md)
 * [MySQL](../integrations/engines/mysql.md)