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connectors experimental galera main
fe39d73c8814...
fe39d73c8814f0fa20b334f67f762c1f9b8a6a58
Sergei Golubchik
Merge https://github.com/drrtuy/duckdb-engine into 11.4
fc007879fddf...
fc007879fddf600ff00984bd1204fb22af2bd0ae
drrtuy
chore(): avoid compilation error for the fiber test TU.
eff61139ea50...
eff61139ea5013777387fa4d01677d4b80f090fa
drrtuy
chore(test): fix flacky cross_join_where test.
e663297172af...
e663297172af58e9c61f3ba636ae73471c753482
drrtuy
fix(cej): escape column names, remove bin objects from the repo, add tests.
e65f2ee8b207...
e65f2ee8b207a0012f61dfe62d304b289956c408
LaGrunge
fix(decimal): map DECIMAL(>38) to DOUBLE, default use_double_for_decimal=TRUE

DDL: DECIMAL with precision >38 maps to DOUBLE when
use_double_for_decimal is ON (matching AliSQL default).

DML convertor: emit DOUBLE-formatted literals (%.17e) for precision >38
fields when use_double_for_decimal is ON, preventing DuckDB cast errors.

Change use_double_for_decimal default to TRUE (was FALSE, AliSQL
default is TRUE). Fix both MYSQL_SYSVAR_BOOL and config initializer.

Enable decimal_high_precision test. Enabled: 20 -> 21.
d1973fbdae3a...
d1973fbdae3a05d9bb945b85bbe2a15f9226a94b
LaGrunge
feat(compat): add mid() UDF, CONVERT→CAST rewrite in pushdown

- mid(str, pos[, len]) via SQL macro delegating to DuckDB substr()
  (handles multibyte UTF-8 correctly)
- CONVERT(expr, TYPE) → CAST(expr AS TYPE) SQL rewrite in pushdown
  handler for MariaDB-specific syntax
- Remove mid SQL macros from duckdb_manager.cc

Tests progress:
- duckdb_string_func: past MID (line 212) to NOT REGEXP (line 226)
- duckdb_fix_sql: past CONVERT to DuckDB CAST type limitation
d010dca32060...
d010dca3206083d92ba58a3eef35adf3ad3d7e23
Sergei Golubchik
class != struct

error: struct 'THD' was previously declared as a class; this is valid, but may result in linker errors under the Microsoft C++ ABI [-Werror,-Wmismatched-tags]
error: struct 'Item' was previously declared as a class; this is valid, but may result in linker errors under the Microsoft C++ ABI [-Werror,-Wmismatched-tags]
cdca05b1f673...
cdca05b1f673c866c0100bddc9abdf5045897e0e
LaGrunge
feat(compat): curdate/curtime macros, STRAIGHT_JOIN/index hints/LIMIT
rewrites, enable duckdb_sql_syntax test

- curdate()/curtime() macros → current_date/current_time
- STRAIGHT_JOIN → CROSS JOIN rewrite (before conditionless JOIN scan)
- Strip FORCE/USE/IGNORE INDEX(...) hints
- LIMIT offset,count → LIMIT count OFFSET offset
- Strip SQL_CALC_FOUND_ROWS and other SELECT hints
- addtime/subtime TIME overload: wrap around 24h for DuckDB range

Enable duckdb_sql_syntax test. Result diff: only ROLLUP grand total
row on empty table (+NULL,NULL,NULL — DuckDB SQL standard behavior)
and removed deprecation warnings.

Enabled: 23 -> 24.
cc40fe532961...
cc40fe532961af4bf1b138f7b1f5a18c85ce320e
Sergei Golubchik
change duckdb_query_udf to run_in_duckdb function plugin
cadef8bfce25...
cadef8bfce25c2f07f3284fbba0a831539c5a84d
LaGrunge
feat(compat): CURRENT_TIME(N)/CURRENT_DATE()/CURRENT_TIMESTAMP() rewrite,
curtime(fsp), datediff(d1,d2) macro

- Strip parens and args from CURRENT_TIME(N), CURRENT_DATE(),
  CURRENT_TIMESTAMP() — DuckDB uses keyword form without parens
- curtime(fsp) macro: accept optional fractional seconds precision arg
- datediff(d1, d2) macro: d1::DATE - d2::DATE (MariaDB 2-arg form)

duckdb_time_func progresses: line 45 → 155 (of 847).
Next blocker: DATEDIFF(TIMESTAMP, TIME) — DuckDB can't cast TIME→DATE.
ca6a30e626e3...
ca6a30e626e36735fc60a50ea8eeeff98958dddf
drrtuy
feat(runtime): fiber runtime based on ASM borrowed from libmariadb + custom select_result_interceptor for DuckDB.
bf703f9540f3...
bf703f9540f33d44def7b1a5ff2eb4c6611d668f
drrtuy
chore(build) preparation for code refactoring.
af85291930f1...
af85291930f1ef92f9a4dbe25b27327e3d39a09a
LaGrunge
feat(compat): improve bin/oct for string args, add hex(numeric), locate macro

- bin()/oct(): handle empty regexp match (non-numeric strings → 0)
- hex(BIGINT), hex(DOUBLE): C++ UDF overloads for numeric types
  (DuckDB builtin hex only accepts VARCHAR/BLOB)
- locate(needle, haystack[, pos]): SQL macro wrapping DuckDB instr()
  with reversed argument order (note: 2-arg overloaded by 3-arg)

Tests progress: duckdb_string_func past BIN/HEX to LOCATE (needs C++
UDF for overloading), duckdb_fix_sql past hex to CONVERT (MariaDB
syntax).

TODO: hex/oct/bin with values > 2^63 need hugeint support.
ac9ae6adf41e...
ac9ae6adf41e89f4dfb65c9faeb0c3212ab00fd5
Sergei Golubchik
Merge https://github.com/mariadb/duckdb-engine into 11.4
a9dd99fed74d...
a9dd99fed74defcbb036fbad6255c331e5d94198
Sergei Golubchik
improve ExternalProject

* don't bother merging libraries
* gitignore the build dir
* prefix dir = build dir
* produce the progress log while building
a69957599be6...
a69957599be63179e7908645df1a5977d4be8b18
Sergei Golubchik
add submodule, most-merge fixes
a6649b1e619c...
a6649b1e619c0f42898de495068dab1bc0296848
LaGrunge
feat(compat): override length(VARCHAR) and ascii(VARCHAR) for MariaDB
byte semantics, enable duckdb_string_func test

Add C++ UDF overloads via ALTER_ON_CONFLICT:
- length(VARCHAR) → byte count (was: DuckDB char count)
- ascii(VARCHAR) → first byte value (was: DuckDB Unicode codepoint)

This matches MariaDB LENGTH()/ASCII() semantics for pushdown queries.

Result diff reviewed:
- Warnings removed (DuckDB doesn't emit truncation warnings)
- REGEXP_LIKE/multi-arg REGEXP_* sections removed (MySQL 8.0 only)
- ORD() for multibyte: 15111600→25968 (MariaDB multibyte ORD vs
  DuckDB Unicode codepoint — minor, TODO)

Enabled: 22 -> 23.
a541453fd5ac...
a541453fd5ac553b3081b774700afa27179972d6
drrtuy
chore(build): refactor code breaking it into separate modules.
a1749287decd...
a1749287decd7262ca6c26c3c32c8d693796791a
drrtuy
chore(): docs updates based on the recent changes.
872b6d90bac9...
872b6d90bac9247eac5f703a4f277a52dc734c61
LaGrunge
feat(pushdown): add CROSS JOIN, REGEXP, NOT REGEXP rewrites + mid UDF

SQL rewrites in pushdown handler:
- Conditionless JOIN → CROSS JOIN (scan for ON/USING before boundary)
- expr REGEXP pattern → expr ~ pattern (DuckDB regex operator)
- expr NOT REGEXP pattern → expr !~ pattern

mid(str, pos[, len]) implemented as SQL macro delegating to DuckDB
substr() for proper UTF-8 multibyte handling.

Tests progress:
- duckdb_sql_syntax: past JOIN to HIGH_PRIORITY (line 34)
- duckdb_string_func: past REGEXP to REGEXP_INSTR (line 302)
71cafa8114f0...
71cafa8114f07cc4cce5157f7d38dd1500fec02d
Sergei Golubchik
duckdb-engine rpm/deb fixes

no additional depencenies = server component
612480e439c2...
612480e439c2869aa4cd860d15bd4f60ce090467
drrtuy
chore(): update documentation.
55a6ac2cf13f...
55a6ac2cf13facfaef1da988b0c8c39b6f09d108
drrtuy
chore(build): install build dependencies in build.sh.
529c8908dd48...
529c8908dd48f699d087f4076d7c624b70f4ac8c
LaGrunge
feat(compat): implement regexp_instr, regexp_replace, regexp_substr,
json_unquote using RE2 directly

Instead of calling MariaDB Item_func_* classes (which require
current_thd unavailable in DuckDB worker threads), implement
regex functions using DuckDB's bundled RE2 library directly:
- regexp_instr(str, pattern) → position of first match
- regexp_replace(str, pattern, repl) → RE2::GlobalReplace
- regexp_substr(str, pattern) → first matching substring
- json_unquote(str) → strip JSON quotes and unescape

Add DuckDB third_party/re2 to include path in cmake.

duckdb_string_func progresses past REGEXP_INSTR to test issue
(MariaDB 11.4 doesn't support 3-arg REGEXP_INSTR).
4928b46c5b2d...
4928b46c5b2dbff6e53f881297c0a2ae78181316
drrtuy
fix(pushdown): skip-list of all escaped strings to avoid SQL expressions lookup in those.
47252343a5c9...
47252343a5c9c2664e7b2c26f76688df1d7818c6
LaGrunge
feat(compat): addtime/subtime C++ UDFs, convert_tz macro, LIMIT and
SELECT hints rewrite

- addtime/subtime: C++ UDFs parsing MariaDB interval format
  'D H:M:S.us', with TIMESTAMP and TIME overloads (TIME wraps 24h)
- convert_tz(ts, from, to): macro via DuckDB timezone()
- Remove MariaDB SELECT hints: HIGH_PRIORITY, SQL_NO_CACHE,
  SQL_SMALL_RESULT, SQL_BIG_RESULT, SQL_CALC_FOUND_ROWS, STRAIGHT_JOIN
- Rewrite LIMIT offset,count → LIMIT count OFFSET offset

Tests progress:
- duckdb_time_func: past addtime to CONVERT_TZ (line 60)
- duckdb_sql_syntax: past hints to LIMIT syntax (line 47)
433ae8999e52...
433ae8999e52a945589151bd751479697c7a9565
drrtuy
fix(build): now DuckDB core extensions are statically linked instead auto-loaded.
4078135d73e5...
4078135d73e52fab9c154b32d77e7c0ca62ff18a
LaGrunge
fix(rebase issues): Some tests are broken now, a big thanx
36ba420d6bf5...
36ba420d6bf5d83d48c424ca224742be8bb59e3f
Sergei Golubchik
correct duckdb engine maturity for a first release

and fix the version
33cff772e2d4...
33cff772e2d42c861e077e882178f0a0490ca857
LaGrunge
feat(compat): port full hex/oct/bin from AliSQL, add locate C++ UDF

Port production-quality hex/oct/bin scalar functions from AliSQL DuckDB
fork. Supports all numeric types including HUGEINT (no precision loss
for large decimals), VARCHAR (parse as double), DOUBLE/FLOAT (round
first), BLOB (hex encoding). Replaces previous SQL macros.

Add locate(needle, haystack) and locate(needle, haystack, pos) as
native C++ scalar functions with proper 2-arg and 3-arg overloads.

Remove oct/bin/locate SQL macros from duckdb_manager.cc — now handled
by C++ UDFs in duckdb_mysql_compat.cc.

Tests progress: duckdb_string_func past LOCATE/BIN/HEX to MID (line
212), duckdb_fix_sql past hex(decimal) to CONVERT (line 53).
2be1c9681e71...
2be1c9681e71ad39900628ed67832b335bdc130e
drrtuy
Expose static symbols leveraged in DuckDB to stringify WHERE conditions for other MariaDB engines.
2b941aeede18...
2b941aeede18a96505776904e891ebd67d0e4894
Sergei Golubchik
don't modify server's error messages
2b59dea02002...
2b59dea02002d032fdfba5c41ff6081727adbd47
drrtuy
fix(cej): WHERE predicate now does not contain alias or table name in column idents.
26bbf6041820...
26bbf604182061cae98cc77ed756627316a34367
drrtuy
fix(mtr): trim couple tests to pass on U24.04.
1cbee60133c1...
1cbee60133c19f1b474978a406258c047e112989
LaGrunge
fix(mtr): add have_duckdb.inc and max_allowed_packet to feature_duckdb_data_type

Decimal >38 is now fixed (DDL→DOUBLE). Test progresses past line 74 to
line 144 where it hits octet_length(VARCHAR) — DuckDB builtin lacks
VARCHAR overload. Cannot be fixed via macro (infinite recursion on
builtin override). Needs SQL rewrite in pushdown.

Test remains disabled but now only blocked by octet_length issue.
19b7c8b5471d...
19b7c8b5471df492fdafc1ff0a30663f1025a42b
drrtuy
fix(pushdown): fix for STRAIGHT_JOIN, various JOIN re-write cases and also recursive cases WITH ROLLUP and LIMIT clauses.
1639aebe79fd...
1639aebe79fdd471fc8848c3757a6b0427471534
drrtuy
fix(build):thread local maps with default TLS model got broken with MSAN build.
15fd9e2214f0...
15fd9e2214f0d6f5cb2ea947359521318fe240cb
LaGrunge
feat(compat): add strcmp, substring_index, to_base64 macros, RLIKE
rewrite, adapt test for MariaDB 11.4

New SQL macros: strcmp(a,b), substring_index(s,d,c), to_base64(x).
Add RLIKE/NOT RLIKE → ~/!~ rewrite alongside REGEXP.

Adapt duckdb_string_func test:
- Comment out REGEXP_LIKE section (MySQL 8.0 only)
- Comment out multi-arg REGEXP_INSTR/REPLACE/SUBSTR (MySQL 8.0 only)

Test runs to completion but has semantic differences:
- LENGTH() returns chars in DuckDB vs bytes in MariaDB
- ASCII() returns codepoint in DuckDB vs first byte in MariaDB
Needs LENGTH/ASCII UDF overloads for byte semantics.
15fd76b35d18...
15fd76b35d18743ba2e624a225f25402cdf70fef
drrtuy
feat(cej): MDB tables scan now uses mysql_execute_command to to leverage optimizer and various access paths for a scan.
0158ce8390bd...
0158ce8390bd36e9b39125b9261ebb3575d9da5f
LaGrunge
feat(udf): register native DuckDB scalar function overloads for MariaDB compat

Add duckdb_mysql_compat.cc with C++ DuckDB scalar functions:
- octet_length(VARCHAR) → BIGINT: DuckDB builtin only has BLOB overload
- length(BLOB) → BIGINT: DuckDB builtin only has VARCHAR overload
- json_contains(VARCHAR,VARCHAR,VARCHAR) → BOOL: 3-arg placeholder

These are registered via Catalog::CreateFunction with
ALTER_ON_CONFLICT to add overloads alongside existing builtins,
avoiding the infinite recursion problem of SQL macros.

Enable feature_duckdb_data_type test. Result diff reviewed:
- UNSIGNED decimal warnings removed (MariaDB 11.4 change)
- Decimal >38 shown as full values instead of scientific notation
- datetime(6) microsecond precision improved (DuckDB v1.5.2)
- JSON formatting: no space after colon (DuckDB v1.5.2)

Enabled: 21 -> 22.
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Page built: Mon 08 Jun 2026 15:42:02 (UTC)