Reenable batch for release (#1302)

georgia-tech-db · Oct 18, 2023 · f192a10 · f192a10
1 parent b8dd206
commit f192a10
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Showing 3 changed files with 13 additions and 10 deletions.
diff --git a/evadb/storage/native_storage_engine.py b/evadb/storage/native_storage_engine.py
@@ -28,7 +28,7 @@
 from evadb.models.storage.batch import Batch
 from evadb.storage.abstract_storage_engine import AbstractStorageEngine
 from evadb.third_party.databases.interface import get_database_handler
-from evadb.utils.generic_utils import PickleSerializer
+from evadb.utils.generic_utils import PickleSerializer, rebatch
 from evadb.utils.logging_manager import logger
 
 
@@ -190,8 +190,8 @@ def read(
                         _deserialize_sql_row(row, ordered_columns) for row in result
                     )
 
-                for data_batch in result:
-                    yield Batch(pd.DataFrame([data_batch]))
+                for df in rebatch(result, batch_mem_size):
+                    yield Batch(pd.DataFrame(df))
 
         except Exception as e:
             err_msg = f"Failed to read the table {table.name} in data source {table.database_name} with exception {str(e)}"

diff --git a/evadb/storage/sqlite_storage_engine.py b/evadb/storage/sqlite_storage_engine.py
@@ -29,7 +29,7 @@
 from evadb.models.storage.batch import Batch
 from evadb.parser.table_ref import TableInfo
 from evadb.storage.abstract_storage_engine import AbstractStorageEngine
-from evadb.utils.generic_utils import PickleSerializer
+from evadb.utils.generic_utils import PickleSerializer, rebatch
 from evadb.utils.logging_manager import logger
 
 # Leveraging Dynamic schema in SQLAlchemy
@@ -189,12 +189,12 @@ def read(
         try:
             table_to_read = self._try_loading_table_via_reflection(table.name)
             result = self._sql_session.execute(table_to_read.select()).fetchall()
-            for row in result:
-                yield Batch(
-                    pd.DataFrame(
-                        [self._deserialize_sql_row(row._asdict(), table.columns)]
-                    )
-                )
+            result_iter = (
+                self._deserialize_sql_row(row._asdict(), table.columns)
+                for row in result
+            )
+            for df in rebatch(result_iter, batch_mem_size):
+                yield Batch(pd.DataFrame(df))
         except Exception as e:
             err_msg = f"Failed to read the table {table.name} with exception {str(e)}"
             logger.exception(err_msg)

diff --git a/test/integration_tests/long/test_github_datasource.py b/test/integration_tests/long/test_github_datasource.py
@@ -31,6 +31,9 @@ def setUp(self):
     def tearDown(self):
         execute_query_fetch_all(self.evadb, "DROP DATABASE IF EXISTS github_data;")
 
+    @pytest.mark.skip(
+        reason="Need https://github.com/georgia-tech-db/evadb/pull/1280 for a cost-based rebatch optimization"
+    )
     @pytest.mark.xfail(reason="Flaky testcase due to `bad request` error message")
     def test_should_run_select_query_in_github(self):
         # Create database.