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9 changes: 6 additions & 3 deletions databases/backends/aiopg.py
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import asyncio
import getpass
import json
import logging
Expand Down Expand Up @@ -171,10 +172,12 @@ async def execute(self, query: ClauseElement) -> typing.Any:
async def execute_many(self, queries: typing.List[ClauseElement]) -> None:
assert self._connection is not None, "Connection is not acquired"
cursor = await self._connection.cursor()
futures = []
for single_query in queries:
single_query, args, context = self._compile(single_query)
futures.append(cursor.execute(single_query, args))
try:
for single_query in queries:
single_query, args, context = self._compile(single_query)
await cursor.execute(single_query, args)
await asyncio.gather(*futures)
finally:
cursor.close()

Expand Down
9 changes: 6 additions & 3 deletions databases/backends/asyncmy.py
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import asyncio
import getpass
import logging
import typing
Expand Down Expand Up @@ -161,10 +162,12 @@ async def execute(self, query: ClauseElement) -> typing.Any:
async def execute_many(self, queries: typing.List[ClauseElement]) -> None:
assert self._connection is not None, "Connection is not acquired"
async with self._connection.cursor() as cursor:
futures = []
for single_query in queries:
single_query, args, context = self._compile(single_query)
futures.append(cursor.execute(single_query, args))
try:
for single_query in queries:
single_query, args, context = self._compile(single_query)
await cursor.execute(single_query, args)
await asyncio.gather(*futures)
finally:
await cursor.close()

Expand Down
9 changes: 6 additions & 3 deletions databases/backends/mysql.py
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import asyncio
import getpass
import logging
import typing
Expand Down Expand Up @@ -161,10 +162,12 @@ async def execute(self, query: ClauseElement) -> typing.Any:
async def execute_many(self, queries: typing.List[ClauseElement]) -> None:
assert self._connection is not None, "Connection is not acquired"
cursor = await self._connection.cursor()
futures = []
for single_query in queries:
single_query, args, context = self._compile(single_query)
futures.append(cursor.execute(single_query, args))
try:
for single_query in queries:
single_query, args, context = self._compile(single_query)
await cursor.execute(single_query, args)
await asyncio.gather(*futures)
finally:
await cursor.close()

Expand Down
5 changes: 4 additions & 1 deletion databases/backends/postgres.py
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import asyncio
import logging
import typing

Expand Down Expand Up @@ -221,9 +222,11 @@ async def execute_many(self, queries: typing.List[ClauseElement]) -> None:
# asyncpg uses prepared statements under the hood, so we just
# loop through multiple executes here, which should all end up
# using the same prepared statement.
futures = []
for single_query in queries:
single_query, args, result_columns = self._compile(single_query)
await self._connection.execute(single_query, *args)
futures.append(self._connection.execute(single_query, *args))
await asyncio.gather(*futures)

async def iterate(
self, query: ClauseElement
Expand Down
8 changes: 6 additions & 2 deletions databases/backends/sqlite.py
Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import asyncio
import logging
import typing
import uuid
Expand Down Expand Up @@ -137,8 +138,11 @@ async def execute(self, query: ClauseElement) -> typing.Any:

async def execute_many(self, queries: typing.List[ClauseElement]) -> None:
assert self._connection is not None, "Connection is not acquired"
for single_query in queries:
await self.execute(single_query)
futures = [
self.execute(single_query)
for single_query in queries
]
await asyncio.gather(*futures)

async def iterate(
self, query: ClauseElement
Expand Down