Ryan Malloy bea1a1cd0c Phase 20: UTF-8/multibyte locale support (2026.05.04.4) ...

Thread CLIENT_LOCALE through to user-data string codecs. Driver previously
hardcoded iso-8859-1 for all string conversions, which broke any locale
outside Western European code points.

* Connection.encoding property derived from client_locale via
  _python_encoding_from_locale (en_US.utf8 -> utf-8, en_US.8859-1 ->
  iso-8859-1, etc.)
* encode_param / decode / parse_tuple_payload accept an encoding
  parameter; cursor and fast-path call sites forward conn.encoding
* Smart-LOB CLOB encode/decode and TEXT decode honor connection encoding
* DataError raised for non-representable chars; cursor releases the
  prepared statement before propagating so connection state stays clean

Boundary discipline: protocol-level strings (cursor names, function
signatures, SQ_FILE fnames, error near-tokens, SQL text) stay
iso-8859-1 (always ASCII, never user-controlled).

9 new integration tests in tests/test_unicode.py covering ASCII
round-trip, Latin-1 high-bit, full byte range, locale-mapping,
encoding property, UTF-8 negotiation, multibyte (skipped without
IFX_UTF8_DATABASE), DataError on non-representable, CLOB round-trip.

Total: 69 unit + 212 integration = 281 tests.

2026-05-04 17:13:19 -06:00

..

reference

Phase 9: smart-LOB BLOB/CLOB locator decoding (Phase 10 deferred for fetch)

2026-05-04 13:26:15 -06:00

__init__.py

Phase 1: pure-Python SQLI login works end-to-end

2026-05-02 19:10:24 -06:00

_proxy.py

Phase 19: resilience tests via fault injection (v2026.05.04.3)

2026-05-04 16:57:06 -06:00

conftest.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

docker-compose.yml

Phase 1: pure-Python SQLI login works end-to-end

2026-05-02 19:10:24 -06:00

test_aio.py

Phase 16: async API (informix_db.aio)

2026-05-04 14:58:19 -06:00

test_blob_locator_unit.py

Phase 9: smart-LOB BLOB/CLOB locator decoding (Phase 10 deferred for fetch)

2026-05-04 13:26:15 -06:00

test_blob.py

Phase 8: BYTE/TEXT bind+read via SQ_BBIND/SQ_BLOB/SQ_FETCHBLOB

2026-05-04 13:13:55 -06:00

test_composite_types.py

Phase 12: ROW / COLLECTION type recognition

2026-05-04 14:30:44 -06:00

test_datetime.py

Phase 6.c: DATE / DATETIME / DECIMAL parameter encoding

2026-05-04 12:09:16 -06:00

test_decimal.py

Phase 6.c: DATE / DATETIME / DECIMAL parameter encoding

2026-05-04 12:09:16 -06:00

test_dml.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

test_errors.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

test_fastpath.py

Phase 13: SQ_FPROUTINE / SQ_EXFPROUTINE fast-path RPC

2026-05-04 14:36:21 -06:00

test_interval_encode.py

Phase 6.e: INTERVAL parameter encoding

2026-05-04 12:30:48 -06:00

test_interval_unit.py

Phase 6.d: INTERVAL decoding (both qualifier families)

2026-05-04 12:22:07 -06:00

test_interval.py

Phase 6.d: INTERVAL decoding (both qualifier families)

2026-05-04 12:22:07 -06:00

test_nulls.py

Phase 4.x: parameterized SELECT, NULL row decoding, executemany()

2026-05-04 11:11:50 -06:00

test_params.py

Phase 8: BYTE/TEXT bind+read via SQ_BBIND/SQ_BLOB/SQ_FETCHBLOB

2026-05-04 13:13:55 -06:00

test_pdu_match.py

Phase 2: SELECT works end-to-end — pure-Python Informix fully reads data

2026-05-03 15:37:10 -06:00

test_pool.py

Phase 15: connection pool

2026-05-04 14:50:27 -06:00

test_protocol.py

Phase 1: pure-Python SQLI login works end-to-end

2026-05-02 19:10:24 -06:00

test_resilience.py

Phase 19: resilience tests via fault injection (v2026.05.04.3)

2026-05-04 16:57:06 -06:00

test_scroll_cursor_server.py

Phase 18: server-side scrollable cursors via SQ_SFETCH (v2026.05.04.2)

2026-05-04 16:41:25 -06:00

test_scroll_cursor.py

Phase 17: scroll cursor API (v2026.05.04.1)

2026-05-04 15:51:24 -06:00

test_select.py

Phase 2.x: VARCHAR row decoding works — three byte-level fixes

2026-05-04 07:55:13 -06:00

test_smart_lob_read.py

Phase 11: smart-LOB BLOB/CLOB write via SQ_FILE / filetoblob

2026-05-04 14:14:37 -06:00

test_smart_lob_write.py

Phase 11: smart-LOB BLOB/CLOB write via SQ_FILE / filetoblob

2026-05-04 14:14:37 -06:00

test_smart_lob.py

Phase 11: smart-LOB BLOB/CLOB write via SQ_FILE / filetoblob

2026-05-04 14:14:37 -06:00

test_smoke.py

Phase 4: parameter binding (SQ_BIND) — int, float, str, bool, None

2026-05-04 10:54:32 -06:00

test_tls.py

Phase 14: TLS / SSL transport

2026-05-04 14:46:53 -06:00

test_transactions.py

Phase 7: real transaction semantics on logged databases

2026-05-04 12:54:02 -06:00

test_unicode.py

Phase 20: UTF-8/multibyte locale support (2026.05.04.4)

2026-05-04 17:13:19 -06:00