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fix(pkg-py): gracefully handle Snowflake semantic view discovery errors #220

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Merged
cpsievert merged 1 commit into from
Apr 17, 2026
Merged

fix(pkg-py): gracefully handle Snowflake semantic view discovery errors #220

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23 changes: 21 additions & 2 deletions pkg-py/src/querychat/_snowflake.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,16 @@ def discover_semantic_views(
if os.environ.get("QUERYCHAT_DISABLE_SEMANTIC_VIEWS"):
return []

rows = execute_raw_sql("SHOW SEMANTIC VIEWS", backend)
try:
rows = execute_raw_sql("SHOW SEMANTIC VIEWS", backend)
except Exception:
logger.warning(
"Failed to discover semantic views. "
"This usually means the current role lacks the required privileges. "
"Semantic view context will not be included in the system prompt.",
exc_info=True,
)
return []
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if not rows:
logger.debug("No semantic views found in current schema")
Expand Down Expand Up @@ -83,7 +92,17 @@ def get_semantic_view_ddl(
) -> str | None:
"""Get DDL for a semantic view by fully qualified name."""
safe_name = fq_name.replace("'", "''")
rows = execute_raw_sql(f"SELECT GET_DDL('SEMANTIC_VIEW', '{safe_name}')", backend)
try:
rows = execute_raw_sql(
f"SELECT GET_DDL('SEMANTIC_VIEW', '{safe_name}')", backend
)
except Exception:
logger.warning(
"Failed to get DDL for semantic view '%s'. Skipping this view.",
fq_name,
exc_info=True,
)
return None
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if rows:
return str(next(iter(rows[0].values())))
return None
Expand Down
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