SNOW-2458510: Make faster pandas opt-in instead of opt-out (#3957)

sfc-gh-helmeleegy · web-flow · commit 2fa316398c48 · 2025-10-27T11:27:14.000-07:00
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -36,6 +36,7 @@
   - `groupby.size`
   - `concat`
   - `copy`
+- Make faster pandas disabled by default (opt-in instead of opt-out).
 
 ## 1.41.0 (2025-10-23)
 
diff --git a/src/snowflake/snowpark/session.py b/src/snowflake/snowpark/session.py
@@ -754,7 +754,7 @@ def __init__(
 
         self._dummy_row_pos_optimization_enabled: bool = (
             self._conn._get_client_side_session_parameter(
-                _SNOWPARK_PANDAS_DUMMY_ROW_POS_OPTIMIZATION_ENABLED, True
+                _SNOWPARK_PANDAS_DUMMY_ROW_POS_OPTIMIZATION_ENABLED, False
             )
         )
 
diff --git a/tests/integ/modin/test_faster_pandas.py b/tests/integ/modin/test_faster_pandas.py

Original file line number	Diff line number	Diff line change
`@@ -754,7 +754,7 @@ def __init__(`
`754`	`754`
`755`	`755`	`self._dummy_row_pos_optimization_enabled: bool = (`
`756`	`756`	`self._conn._get_client_side_session_parameter(`
`757`		`- _SNOWPARK_PANDAS_DUMMY_ROW_POS_OPTIMIZATION_ENABLED, True`
	`757`	`+ _SNOWPARK_PANDAS_DUMMY_ROW_POS_OPTIMIZATION_ENABLED, False`
`758`	`758`	`)`
`759`	`759`	`)`
`760`	`760`