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Backport bug fixes to 3.x for v3.38.0 - #1104

Merged

laughingman7743 merged 20 commits into

3.xfrom

backport/3.x-v3.38.0

Oct 6, 2026

Merged

Backport bug fixes to 3.x for v3.38.0#1104
laughingman7743 merged 20 commits into
3.xfrom
backport/3.x-v3.38.0

Commits on Oct 6, 2026
- Backport #800: Find an existing table in to_sql whatever the name's case
  
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- Backport #817: Assert cache hits in the test work group instead of primary
  
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- Backport #831: Stop Spark session readiness polling on failure states
  
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- Backport #830: Shut down the AsyncSparkCursor executor when session termination fails
  
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- Backport #832: Terminate a newly started Spark session when cursor setup fails
  
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- Backport #899: Reject synchronous iteration of the asyncio cursors and result sets
  
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- Backport #900 (decimal256 only): Map Arrow decimal256 to Athena decimal
  
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- Backport #928: Fix stale S3FileSystem listing and object caches
  
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- Backport #929: Keep the existing object when appending within a larger block size
  
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- Backport #947: Merge a short trailing block into the previous multipart part
  
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- Backport #955: Keep multipart copy parts within the S3 part size limits
  
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- Backport #959: Skip the result cache for qmark queries with parameters
  
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- Backport #950: Return the whole result from as_pandas() when auto chunking applies
  
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- Backport #995: Reflect the field and value types of top-level STRUCT and MAP columns
  
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- Backport #1023: Do not convert ArrowCursor fallback values twice
  
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- Backport #1029: Stop a closed PolarsDataFrameIterator for every reader kind
  
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- Backport #1031: Keep NULL rows of single-column CSV results in ArrowCursor
  
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- Backport #1033 (#854 only): Keep numeric UTC offsets of TIMESTAMP WITH TIME ZONE values
  
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- Backport #1045: Read multi-line CSV values that cross a block in ArrowCursor
  
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- Backport #1075: Use the C engine for Pandas DDL text results
  
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Commits

Commits on Oct 6, 2026