diff --git a/ooniapi/common/src/common/clickhouse_utils.py b/ooniapi/common/src/common/clickhouse_utils.py
new file mode 100644
index 00000000..221041b3
--- /dev/null
+++ b/ooniapi/common/src/common/clickhouse_utils.py
@@ -0,0 +1,67 @@
+import logging
+from typing import Dict, List, Optional, Union
+import clickhouse_driver
+import clickhouse_driver.errors
+
+from sqlalchemy.dialects import postgresql
+from sqlalchemy.sql.elements import TextClause
+from sqlalchemy.sql.selectable import Select
+
+log = logging.getLogger(__name__)
+
+Query = Union[str, TextClause, Select]
+
+
+def _run_query(
+    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=3
+):
+    # settings = {"priority": query_prio, "max_execution_time": 28}
+    settings = {}
+    if isinstance(query, (Select, TextClause)):
+        query = str(query.compile(dialect=postgresql.dialect()))
+    try:
+        q = db.execute(query, query_params, with_column_types=True, settings=settings)
+    except clickhouse_driver.errors.ServerException as e:
+        log.info(e.message)
+        raise Exception("Database query error")
+
+    rows, coldata = q  # type: ignore
+    colnames, coltypes = tuple(zip(*coldata))
+    return colnames, rows
+
+
+def query_click(
+    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=3
+) -> List[Dict]:
+    colnames, rows = _run_query(db, query, query_params, query_prio=query_prio)
+    return [dict(zip(colnames, row)) for row in rows]  # type: ignore
+
+
+def query_click_one_row(
+    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=3
+) -> Optional[dict]:
+    colnames, rows = _run_query(db, query, query_params, query_prio=query_prio)
+    for row in rows:
+        return dict(zip(colnames, row))  # type: ignore
+
+    return None
+
+
+def insert_click(db: clickhouse_driver.Client, query: Query, rows: list) -> int:
+    assert isinstance(rows, list)
+    settings = {"priority": 1, "max_execution_time": 300}  # query_prio
+    return db.execute(query, rows, types_check=True, settings=settings)  # type: ignore
+
+
+def optimize_table(db: clickhouse_driver.Client, tblname: str) -> None:
+    settings = {"priority": 1, "max_execution_time": 300}  # query_prio
+    sql = f"OPTIMIZE TABLE {tblname} FINAL"
+    db.execute(sql, {}, settings=settings)
+
+
+def raw_query(
+    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=1
+):
+    settings = {"priority": query_prio, "max_execution_time": 300}
+    q = db.execute(query, query_params, with_column_types=True, settings=settings)
+    return q
diff --git a/ooniapi/common/src/common/utils.py b/ooniapi/common/src/common/utils.py
index 2232e45b..4768b508 100644
--- a/ooniapi/common/src/common/utils.py
+++ b/ooniapi/common/src/common/utils.py
@@ -2,16 +2,9 @@
 from io import StringIO
 import logging
 from typing import Any, Dict, List, Optional, Union
-from fastapi import HTTPException, Header
 from fastapi.responses import JSONResponse
 
 import jwt
-import clickhouse_driver
-import clickhouse_driver.errors
-
-from sqlalchemy.dialects import postgresql
-from sqlalchemy.sql.elements import TextClause
-from sqlalchemy.sql.selectable import Select
 
 
 log = logging.getLogger(__name__)
@@ -67,64 +60,6 @@ def convert_to_csv(r) -> str:
     return result
 
 
-Query = Union[str, TextClause, Select]
-
-
-def _run_query(
-    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=3
-):
-    # settings = {"priority": query_prio, "max_execution_time": 28}
-    settings = {}
-    if isinstance(query, (Select, TextClause)):
-        query = str(query.compile(dialect=postgresql.dialect()))
-    try:
-        q = db.execute(query, query_params, with_column_types=True, settings=settings)
-    except clickhouse_driver.errors.ServerException as e:
-        log.info(e.message)
-        raise Exception("Database query error")
-
-    rows, coldata = q  # type: ignore
-    colnames, coltypes = tuple(zip(*coldata))
-    return colnames, rows
-
-
-def query_click(
-    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=3
-) -> List[Dict]:
-    colnames, rows = _run_query(db, query, query_params, query_prio=query_prio)
-    return [dict(zip(colnames, row)) for row in rows]  # type: ignore
-
-
-def query_click_one_row(
-    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=3
-) -> Optional[dict]:
-    colnames, rows = _run_query(db, query, query_params, query_prio=query_prio)
-    for row in rows:
-        return dict(zip(colnames, row))  # type: ignore
-
-    return None
-
-
-def insert_click(db: clickhouse_driver.Client, query: Query, rows: list) -> int:
-    assert isinstance(rows, list)
-    settings = {"priority": 1, "max_execution_time": 300}  # query_prio
-    return db.execute(query, rows, types_check=True, settings=settings)  # type: ignore
-
-
-def optimize_table(db: clickhouse_driver.Client, tblname: str) -> None:
-    settings = {"priority": 1, "max_execution_time": 300}  # query_prio
-    sql = f"OPTIMIZE TABLE {tblname} FINAL"
-    db.execute(sql, {}, settings=settings)
-
-
-def raw_query(
-    db: clickhouse_driver.Client, query: Query, query_params: dict, query_prio=1
-):
-    settings = {"priority": query_prio, "max_execution_time": 300}
-    q = db.execute(query, query_params, with_column_types=True, settings=settings)
-    return q
-
-
 def decode_jwt(token: str, key: str, **kw) -> Dict[str, Any]:
     tok = jwt.decode(token, key, algorithms=["HS256"], **kw)
     return tok