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fix: Invalidate table cache when new column added #389

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fix: Invalidate table cache when new column added #389

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49aed1b
Fix `column already exists` error by invalidating table cache when a …
ReubenFrankel Jul 24, 2025
bdc03c4
Make pre-commit happy
ReubenFrankel Jul 24, 2025
705d8f4
Merge branch 'main' into fix/invalidate-table-cache-on-new-column
ReubenFrankel Jul 29, 2025
1c71bf3
Clear table cache on sink creation instead, to avoid degraded perform…
ReubenFrankel Jul 29, 2025
ce377e1
Merge branch 'main' into fix/invalidate-table-cache-on-new-column
edgarrmondragon Jul 15, 2026
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5 changes: 5 additions & 0 deletions target_snowflake/sinks.py
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Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,9 @@ def setup(self) -> None:
self.connector.prepare_schema(
self.conform_name(self.schema_name, object_type="schema"),
)

self.connector.table_cache.pop(self.full_table_name, None)

try:
self.connector.prepare_table(
full_table_name=self.full_table_name,
Expand All @@ -90,6 +93,8 @@ def setup(self) -> None:
self.logger.exception("Error creating %s %s", self.full_table_name, self.conform_schema(self.schema))
raise

self.connector.table_cache.pop(self.full_table_name, None)

def conform_name(
self,
name: str,
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