Issues

• DPY-3040 on AR8MSWIN1256 (charset id 560) when reading DbObject string attributes in Thin mode

  bugpatch available
  Bug

  oracle/python-oracledb#636 · Filter by author rqasmieh-techno opened on Nov 12, 2026
  2

• Thin mode: an outputtypehandler redefining a CLOB as DB_TYPE_LONG misreads the reply when the statement is cached

  oracle/python-oracledb#634 · Filter by author lemenkov opened on Nov 12, 2026

• executemany() with /*+ append_values */ and strings over 32767 bytes stores another row's value or raises ORA-03106 (Thin)

  oracle/python-oracledb#633 · Filter by author orix22 opened on Nov 11, 2026

• Thin mode: segfault when a cached query is executed again after its first execute failed with ORA-01438

  oracle/python-oracledb#631 · Filter by author jhchong0405 opened on Nov 10, 2026

• run_pipeline() never completes when the server side closes the connection during the pipeline; call_timeout and asyncio.wait_for don't end it

  oracle/python-oracledb#630 · Filter by author tkarlmarx opened on Nov 4, 2026

• Thin mode asyncio: segfault in data_received after a late FIN from a redirecting listener

  oracle/python-oracledb#629 · Filter by author clemens33 opened on Nov 2, 2026

• 26.0.0: Regression in LOB handling can lead to ORA-01461, DPY-3013 and data loss

  bug
  Bug

  oracle/python-oracledb#628 · Filter by author mgn-nav opened on Nov 2, 2026
  1

• Thin mode: ORA-01483 for string binds of 2731-8191 bytes on a database with the UTF8 character set

  bug
  Bug

  oracle/python-oracledb#627 · Filter by author grosso-enerbrain opened on Oct 29, 2026
  2

• AsyncConnectionPool: a session_callback that raises leaves the connection counted busy, so acquire() later hangs

  bugpatch available
  Bug

  oracle/python-oracledb#626 · Filter by author jasperblues opened on Oct 27, 2026

• Async Thin: call_timeout cannot interrupt server-side waits, causing DPY-4011 and lingering transaction locks

  question
  oracle/python-oracledb#625 · Filter by author jonesito opened on Oct 23, 2026
  1

• Async Thin: call_timeout returns DPY-4024 before RESET completes

  bugpatch available
  Bug

  oracle/python-oracledb#624 · Filter by author jonesito opened on Oct 23, 2026
  2

• Async Thin: bounded cancellation while BREAK/RESET waits on an open silent socket

  question
  oracle/python-oracledb#623 · Filter by author JMogiel opened on Oct 20, 2026
  1

• DPY-3021: OSON version 2 is not supported when selecting a JSON column after an in-place update (23.26)

  enhancement
  Feature

  oracle/python-oracledb#622 · Filter by author jasperblues opened on Oct 20, 2026

• 26.0.x: higher client CPU per call for fetchone() / execute() compared to 4.0.2

  bug
  oracle/python-oracledb#621 · Filter by author Alaeddine22 opened on Oct 16, 2026
  3

• ORA-28267: Invalid NameSpace Value - When connected to Oracle 26ai using a dblink

  Client Library or Database
  oracle/python-oracledb#620 · Filter by author LeandroCacador opened on Oct 14, 2026
  9

• Thin mode: setting Connection.call_timeout after DPY-4011 crashes the interpreter (SIGSEGV / 0xC0000005)

  oracle/python-oracledb#619 · Filter by author rammsguns opened on Oct 14, 2026

• asyncio: DPY-4011 on connect_async() when the listener closes the original socket after a redirect

  oracle/python-oracledb#616 · Filter by author AlexGracas opened on Oct 6, 2026
  1

• 26.0.x: DPY-6006 with TCPS + SCAN listener: server cert is checked against the redirect host, not the DSN host (regression of #415)

  bug
  oracle/python-oracledb#615 · Filter by author lmsurprenant opened on Oct 6, 2026
  1

• Fetch character columns as raw bytes in the database character set into data frames (Thick mode)

  enhancement
  oracle/python-oracledb#614 · Filter by author a-hirota opened on Sep 30, 2026
  1

• instantclient 23.26.3.0.0 and libaio 0.3.119-9 missing softlink

  Client Library or Database
  oracle/python-oracledb#613 · Filter by author mortenbj-statnett opened on Sep 29, 2026
  3

• Request for cursor.executemany() mechanism to determine the failed row that is the same for SQL and PL/SQL

  enhancement
  Feature

  oracle/python-oracledb#612 · Filter by author robert-ritchie-1 opened on Sep 28, 2026

• Allow Cursor.execute() to preserve leading and trailing SQL whitespace to avoid SQL_ID changes

  enhancement
  oracle/python-oracledb#611 · Filter by author nclee0320-git opened on Sep 28, 2026
  4

• Potential bug: SIGSEGV in Thin-mode AsyncConnection.fetch_df_batches() for VARCHAR2 + TIMESTAMP result; synchronous dataframe fetch succeeds

  bug
  oracle/python-oracledb#607 · Filter by author leonkosak opened on Sep 23, 2026
  6

• Thin mode fails with ORA-24964 when trying to open a PDB migrated from Oracle 19c to 26ai

  bugpatch available
  oracle/python-oracledb#592 · Filter by author ytyapkin opened on May 27, 2026
  8

• Support DPL into specific partition

  enhancement
  oracle/python-oracledb#564 · Filter by author mauropagano opened on Jan 13, 2026