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Changelog

0.0.19 - 2025-04-16

Added

  • Add BeginSubrtn, NotFound and Affinity bytecodes (Diego Reis)
  • Add Ansi Colors to tcl test runner (Pedro Muniz)
  • support modifiers for julianday() (meteorgan)
  • Implement Once and OpenAutoindex opcodes (Jussi Saurio)
  • Add support for OpenEphemeral bytecode (Diego Reis)
  • simulator: Add Bug Database(BugBase) (Alperen Keleş)
  • feat: Add timediff data and time function (Sachin Kumar Singh)
  • core/btree: Add PageContent::new() helper (Pekka Enberg)
  • Add support to load log file with stress test (Pere Diaz Bou)
  • Support UPDATE for virtual tables (Preston Thorpe)
  • Add .timer command to print SQL execution statistics (Pere Diaz Bou)
  • Strict table support (Ihor Andrianov)
  • Support backwards index scan and seeks + utilize indexes in removing ORDER BY (Jussi Saurio)
  • Add deterministic Clock (Avinash Sajjanshetty)
  • Support offset clause in Update queries (Preston Thorpe)
  • Support Create Index (Preston Thorpe)
  • Support insert default values syntax (Preston Thorpe)
  • Add support for default values in INSERT statements (Diego Reis)

Updated

  • Test: write tests for file backed db (Pedro Muniz)
  • btree: move some blocks of code to more reasonable places (Jussi Saurio)
  • Parse hex integers 2 (Anton Harniakou)
  • More index utils (Jussi Saurio)
  • Index utils (Jussi Saurio)
  • Feature: VDestroy for Dropping Virtual Tables (Pedro Muniz)
  • Feat balance shallower (Lâm Hoàng Phúc)
  • Parse hexidecimal integers (Anton Harniakou)
  • Code clean-ups (Diego Reis)
  • Return null when parameter is unbound (Levy A.)
  • Enhance robusteness of optimization for Binary expressions (Diego Reis)
  • Check that index seek key members are not null (Jussi Saurio)
  • Better diagnostics (Pedro Muniz)
  • simulator: provide high level commands on top of a single runner (Alperen Keleş)
  • build(deps-dev): bump vite from 6.0.7 to 6.2.6 in /bindings/wasm/test-limbo-pkg (dependabot[bot])
  • btree: remove IterationState (Jussi Saurio)
  • build(deps): bump pyo3 from 0.24.0 to 0.24.1 (dependabot[bot])
  • Multi column indexes + index seek refactor (Jussi Saurio)
  • Emit ANSI codes only when tracing is outputting to terminal (Preston Thorpe)
  • B-Tree code cleanups (Pekka Enberg)
  • btree index selection on rightmost pointer in balance_non_root (Pere Diaz Bou)
  • io/linux: make syscallio the default (io_uring is really slow) (Jussi Saurio)
  • Stress improvements (Pekka Enberg)
  • VDBE code cleanups (Pekka Enberg)
  • Memory tests to track large blob insertions (Pedro Muniz)
  • Setup tracing to allow output during test runs (Preston Thorpe)
  • allow insertion of multiple overflow cells (Pere Diaz Bou)
  • Properly handle insertion of indexed columns (Preston Thorpe)
  • VTabs: Proper handling of re-opened db files without the relevant extensions loaded (Preston Thorpe)
  • Account divider cell in size while distributing cells (Pere Diaz Bou)
  • Format infinite float as "Inf"/"-Inf" (jachewz)
  • update sqlite download version to 2025 + remove www. (Pere Diaz Bou)
  • Improve validation of btree balancing (Pere Diaz Bou)
  • Aggregation without group by produces incorrect results for scalars (Ihor Andrianov)
  • Dot command completion (Pedro Muniz)
  • Allow reading altered tables by defaulting to null in Column insn (Preston Thorpe)
  • docs(readme): update discord link (Jamie Barton)
  • More VDBE cleanups (Pekka Enberg)
  • Request load page on insert_into_page (Pere Diaz Bou)
  • core/vdbe: Rename execute_insn_* to op_* (Pekka Enberg)
  • Remove RWLock from Shared wal state (Pere Diaz Bou)
  • VDBE with indirect function dispatch (Pere Diaz Bou)

Fixed

  • Fix truncation of error output in tests (Pedro Muniz)
  • Fix Unary Negate Operation on Blobs (Pedro Muniz)
  • Fix incompatibility AND Operation (Pedro Muniz)
  • Fix: comment out incorrect assert in fuzz (Pedro Muniz)
  • Fix two issues with indexes (Jussi Saurio)
  • Fuzz fix some operations (Pedro Muniz)
  • simulator: updates to bug base, refactors (Alperen Keleş)
  • Fix overwrite cell with size less than cell size (Pere Diaz Bou)
  • Fix EXPLAIN to be case insensitive (Pedro Muniz)
  • core: Fix syscall VFS on Linux (Pekka Enberg)
  • Index insert fixes (Pere Diaz Bou)
  • Decrease page count on balancing fixes (Pere Diaz Bou)
  • Remainder fixes (jachewz)
  • Fix virtual table translation issues (Preston Thorpe)
  • Fix overflow position in write_page() (Lâm Hoàng Phúc)

0.0.18 - 2025-04-02

Added

  • Jsonb support update (Ihor Andrianov)
  • Add BTree balancing after delete (Krishna Vishal)
  • Introduce Register struct (Pere Diaz Bou)
  • Introduce immutable record (Pere Diaz Bou)
  • Introduce libFuzzer (Levy A.)
  • WAL frame checksum support (Daniel Boll)
  • Initial JavaScript bindings with napi-rs (Pekka Enberg)
  • Initial pass at UPDATE support (Preston Thorpe)
  • Add commit() and placeholding insert to Python binding (Diego Reis)

Updated

  • Create plan for Update queries (Preston Thorpe)
  • Validate cells inside a page after each operation (Pere Diaz Bou)
  • Refactor Cli Repl Commands to use clap (Pedro Muniz)
  • Allow balance_root to balance with interior pages (Pere Diaz Bou)
  • Let remainder (%) accept textual arguments (Anton Harniakou)
  • JSON code cleanups (Pekka Enberg)
  • Allocation improvements with ImmutableRecord, OwnedRecord and read_record (Pere Diaz Bou)
  • JavaScript binding improvements (Pekka Enberg)
  • Kill test environment (Pekka Enberg)
  • Remove public unlock method from SpinLock to prevent unsafe aliasing (Krishna Vishal)
  • Handle limit zero case in query plan emitter (Preston Thorpe)
  • Reduce MVCC cursor memory consumption (Ihor Andrianov)
  • Unary + is a noop (Levy A.)
  • JSON cache (Ihor Andrianov)
  • Bump rusqlite to 0.34 (Pere Diaz Bou)
  • core: Rename FileStorage to DatabaseFile (Pekka Enberg)
  • Improve Python bindings (Diego Reis)
  • Schema translation cleanups (Pekka Enberg)
  • Various JSON improvements (Ihor Andrianov)
  • Enable pretty mode in shell by default (Pekka Enberg)
  • Improve CLI color scheme (Pekka Enberg)
  • Impl Copy on some types in the pager to prevent explicit clones (Preston Thorpe)
  • Syntax highlighting and hinting (Pedro Muniz)
  • chore: gitignore files with an extension *.db (Anton Harniakou)
  • Organize extension library and feature gate VFS (Preston Thorpe)
  • fragment bench functions (Pere Diaz Bou)

Fixed

  • Remove unnecessary balance code that crashes (Pere Diaz Bou)
  • Fix propagation of divider cell balancing interior page (Pere Diaz Bou)
  • Fuzz test btree fix seeking. (Pere Diaz Bou)
  • Fix IdxCmp insn comparisons (Jussi Saurio)
  • Fixes probably all floating point math issues and floating point display issues. (Ihor Andrianov)
  • Make BTreeCell/read_payload not allocate any data + overflow fixes (Pere Diaz Bou)
  • Fix compute_shl negate with overflow (Krishna Vishal)
  • Fix a typo in README.md (Tshepang Mbambo)
  • Fix platform specific FFI C pointer type casts (Preston Thorpe)
  • core: Fix Destroy opcode root page handling (Pekka Enberg)
  • Fix SELECT 0.0 = 0 returning false (lgualtieri75)
  • bindings/python: Fix flaky tests (Diego Reis)
  • Fix io_uring WAL write corruption by ensuring buffer lifetime (Daniel Boll)

0.0.17 - 2025-03-19

Added

  • BEGIN DEFERRED support (Diego Reis)
  • Experimental MVCC integration (Pekka Enberg)
  • DROP TABLE support (Zaid Humayun)
  • Initial pass on Virtual FileSystem extension module (Preston Thorpe)
  • JSONB support (Ihor Andrianov)
  • Shell command completion (Pedro Muniz)

Updated

Fixed

  • Fixes and improvements to Rust bindings (yirt grek and 南宫茜)
  • Transaction management fixes (Pere Diaz Bou and Diego Reis)
  • JSON function fixes (Ihor Andrianov)

0.0.16 - 2025-03-05

Added

  • Virtual table support (Preston Thorpe)
  • Improvements to Java bindings (Kim Seon Woo)
  • Improvements to Rust bindings (Pekka Enberg)
  • Add sqlean ipaddr extension (EmNudge)
  • Add "dump" and "load" to the help menu (EmNudge)
  • Initial Antithesis testing tool (Pekka Enberg)

Fixed

  • SQLite B-Tree balancing algorithm (Pere Diaz Bou)
  • B-Tree improves and fixes (Pere Diaz Bou and Perston Thorpe)
  • Display blobs as blob literals in .dump (from Mohamed Hossam)
  • Fix wrong count() result if the column specified contains a NULL (lgualtieri75)
  • Fix casting text to integer to match SQLite' (Preston Thorpe)
  • Improve SELECT 1 performance to be on par with SQLite (Pekka Enberg)
  • Fix offset_sec normalization in extensions/time (meteorgan)
  • Handle parsing URI according to SQLite specification (Preston Thorpe)
  • Escape character is ignored in LIKE function (lgualtieri75)
  • Fix cast_text_to_number compatibility (Pedro Muniz)
  • Modify the LIKE function to work with all types (Mohamed Hossam)

0.0.15 - 2025-02-18

Added

Core:

  • Initial pass on virtual tables (Preston Thorpe)
  • Import MVCC code to the source tree -- not enabled (Pekka Enberg, Piotr Sarna, Avinash Sajjanshetty)
  • Implement json_set (Marcus Nilsson)
  • Initial support for WITH clauses (common table expressions) (Jussi Saurio)
  • BEGIN IMMEDIATE + COMMIT support (Pekka Enberg)
  • BEGIN EXCLUSIVE support (Pekka Enberg)
  • Add Printf Support (Zaid Humayun)
  • Add support for delete row (Krishna Vishal)
  • Implement json_quote (Pedro Muniz)
  • Add read implementation of user_version pragma with ReadCookie opcode (Jonathan Webb)
  • Json path refine (Ihor Andrianov)
  • cli: Basic dump support (Glauber Costa)
  • Support numeric column references in GROUP BY (Jussi Saurio)
  • Implement the legacy_file_format pragma (Glauber Costa)
  • Added IdxLE and IdxLT opcodes (Omolola Olamide)

*Java bindings:

  • Improve JDBC support with, for example, prepared statements (Kim Seon Woo)
  • Rename package name tech.turso (Kim Seon Woo)

Extensions:

  • Sqlean Crypto extension (Diego Reis)
  • Sqlean Time extension (Pedro Muniz)
  • Add support for regexp_replace() (lgualtieri75)

Simulator:

  • Add NoREC testing property (Alperen Keleş)
  • Add --differential mode against SQLite (Alperen Keleş)

Fixed

Core:

  • Fix 24/48 bit width serial types parsing (Nikita Sivukhin)
  • Fix substr (Nikita Sivukhin)
  • Fix math binary (Nikita Sivukhin)
  • Fix and predicate (Nikita Sivukhin)
  • Fix IdxGt, IdxGe, IdxLt, and IdxLe instructions (Jussi Saurio)
  • Fix not evaling constant conditions when no tables in query (Jussi Saurio)
  • Fix remainder panic on zero right-hand-side (Jussi Saurio)
  • Fix invalid text columns generated by dump (Kingsley Yung)
  • Fix incorrect CAST text->numeric if valid prefix is 1 char long (Jussi Saurio)
  • Improve SQL statement prepare performance (Jussi Saurio)
  • Fix VCC write conflict handling (Jussi Saurio)
  • Fix various bugs in B-Tree handling (Nikita Sivukhin)
  • Fix case and emit (Nikita Sivukhin)
  • Fix coalesce (Nikita Sivukhin)
  • Fix cast (Nikita Sivukhin)
  • Fix string funcs (Nikita Sivukhin)
  • Fix floating point truncation in JSON #877 (lgualtieri75)
  • Fix bug with SELECT referring to a mixed-case alias (Jussi Saurio)

0.0.14 - 2025-02-04

Added

Core:

  • Improve changes() and total_changes() functions and add tests (Ben Li)
  • Add support for json_object function (Jorge Hermo)
  • Implemented json_valid function (Harin)
  • Implement Not (Vrishabh)
  • Initial support for wal_checkpoint pragma (Sonny)
  • Implement Or and And bytecodes (Diego Reis)
  • Implement strftime function (Pedro Muniz)
  • implement sqlite_source_id function (Glauber Costa)
  • json_patch() function implementation (Ihor Andrianov)
  • json_remove() function implementation (Ihor Andrianov)
  • Implement isnull / not null for filter expressions (Glauber Costa)
  • Add support for offset in select queries (Ben Li)
  • Support returning column names from prepared statement (Preston Thorpe)
  • Implement Concat opcode (Harin)
  • Table info (Glauber Costa)
  • Pragma list (Glauber Costa)
  • Implement Noop bytecode (Pedro Muniz)
  • implement is and is not where constraints (Glauber Costa)
  • Pagecount (Glauber Costa)
  • Support column aliases in GROUP BY, ORDER BY and HAVING (Jussi Saurio)
  • Implement json_pretty (Pedro Muniz)

Extensions:

  • Initial pass on vector extension (Pekka Enberg)
  • Enable static linking for 'built-in' extensions (Preston Thorpe)

Go Bindings:

  • Initial support for Go database/sql driver (Preston Thorpe)
  • Avoid potentially expensive operations on prepare' (Glauber Costa)

Java Bindings:

  • Implement JDBC ResultSet (Kim Seon Woo)
  • Implement LimboConnection close() (Kim Seon Woo)
  • Implement close() for LimboStatement and LimboResultSet (Kim Seon Woo)
  • Implement methods in JDBC4ResultSet (Kim Seon Woo)
  • Load native library from Jar (Kim Seon Woo)
  • Change logger dependency (Kim Seon Woo)
  • Log driver loading error (Pekka Enberg)

Simulator:

  • Implement --load and --watch flags (Alperen Keleş)

Build system and CI:

  • Add Nyrkiö change point detection to 'cargo bench' workflow (Henrik Ingo)

Fixed

  • Fix select X'1'; causes limbo to go in infinite loop (Krishna Vishal)
  • Fix rowid search codegen (Nikita Sivukhin)
  • Fix logical codegen (Nikita Sivukhin)
  • Fix parser panic when duplicate column names are given to CREATE TABLE (Krishna Vishal)
  • Fix panic when double quoted strings are used for column names. (Krishna Vishal)
  • Fix SELECT -9223372036854775808 result differs from SQLite (Krishna Vishal)
  • Fix SELECT ABS(-9223372036854775808) causes limbo to panic. (Krishna Vishal)
  • Fix memory leaks, make extension types more efficient (Preston Thorpe)
  • Fix table with single column PRIMARY KEY to not create extra btree (Krishna Vishal)
  • Fix null cmp codegen (Nikita Sivukhin)
  • Fix null expr codegen (Nikita Sivukhin)
  • Fix rowid generation (Nikita Sivukhin)
  • Fix shr instruction (Nikita Sivukhin)
  • Fix strftime function compatibility problems (Pedro Muniz)
  • Dont fsync the WAL on read queries (Jussi Saurio)

0.0.13 - 2025-01-19

Added

  • Initial support for native Limbo extensions (Preston Thorpe)

  • npm packaging for node and web (Elijah Morgan)

  • Add support for rowid keyword' (Kould)

  • Add support for shift left, shift right, is and is not operators (Vrishabh)

  • Add regexp extension (Vrishabh)

  • Add counterexample minimization to simulator (Alperen Keleş)

  • Initial support for binding values to prepared statements (Levy A.)

Updated

  • Java binding improvements (Kim Seon Woo)

  • Reduce liblimbo_sqlite3.a size' (Pekka Enberg)

Fixed

  • Fix panics on invalid aggregate function arguments (Krishna Vishal)

  • Fix null compare operations not giving null (Vrishabh)

  • Run all statements from SQL argument in CLI (Vrishabh)

  • Fix MustBeInt opcode semantics (Vrishabh)

  • Fix recursive binary operation logic (Jussi Saurio)

  • Fix SQL comment parsing in Limbo shell (Diego Reis and Clyde)

0.0.12 - 2025-01-14

Added

Core:

  • Improve JSON function support (Kacper Madej, Peter Sooley)

  • Support nested parenthesized conditional expressions (Preston Thorpe)

  • Add support for changes() and total_changes() functions (Lemon-Peppermint)

  • Auto-create index in CREATE TABLE when necessary (Jussi Saurio)

  • Add partial support for datetime() function (Preston Thorpe)

  • SQL parser performance improvements (Jussi Saurio)

Shell:

  • Show pretty parse errors in the shell (Samyak Sarnayak)

  • Add CSV import support to shell (Vrishabh)

  • Selectable IO backend with --io={syscall,io-uring} argument (Jorge López Tello)

Bindings:

  • Initial version of Java bindings (Kim Seon Woo)

  • Initial version of Rust bindings (Pekka Enberg)

  • Add OPFS support to Wasm bindings (Elijah Morgan)

  • Support uncorrelated FROM clause subqueries (Jussi Saurio)

  • In-memory support to sqlite3_open() (Pekka Enberg)

Fixed

  • Make iterate() lazy in JavaScript bindings (Diego Reis)

  • Fix integer overflow output to be same as sqlite3 (Vrishabh)

  • Fix 8-bit serial type to encoding (Preston Thorpe)

  • Query plan optimizer bug fixes (Jussi Saurio)

  • B-Tree balancing fixes (Pere Diaz Bou)

  • Fix index seek wrong on SeekOp::LT`SeekOp::GT` (Kould)

  • Fix arithmetic operations for text values' from Vrishabh

  • Fix quote escape in SQL literals (Vrishabh)

0.0.11 - 2024-12-31

Added

  • Add in-memory mode to Python bindings (Jean Arhancet)

  • Add json_array_length function (Peter Sooley)

  • Add support for the UUID extension (Preston Thorpe)

Changed

  • Enable sqpoll by default in io_uring (Preston Thorpe)

  • Simulator improvements (Alperen Keleş)

Fixed

  • Fix escaping issues with like and glob functions (Vrishabh)

  • Fix sqlite_version() out of bound panics' (Diego Reis)

  • Fix on-disk file format bugs (Jussi Saurio)

0.0.10 - 2024-12-18

Added

  • In-memory mode (Preston Thorpe)

  • More CLI improvements (Preston Thorpe)

  • Add support for replace() function (Alperen Keleş)

  • Unary operator improvements (Jean Arhancet)

  • Add support for unex(x, y) function (Kacper Kołodziej)

Fixed

  • Fix primary key handling when there's rowid and PK is not alias (Jussi Saurio)

0.0.9 - 2024-12-12

Added

  • Improve CLI (Preston Thorpe)

  • Add support for iif() function (Alex Miller)

  • Add support for last_insert_rowid() function (Krishna Vishal)

  • Add support JOIN USING and NATURAL JOIN (Jussi Saurio)

  • Add support for more scalar functions (Kacper Kołodziej)

  • Add support for HAVING clause (Jussi Saurio)

  • Add get() and iterate() to JavaScript/Wasm API (Jean Arhancet)

0.0.8 - 2024-11-20

Added

  • Python package build and example usage (Pekka Enberg)

0.0.7 - 2024-11-20

Added

  • Minor improvements to JavaScript API (Pekka Enberg)
  • CAST support (Jussi Saurio)

Fixed

  • Fix issues found in-btree code with the DST (Pere Diaz Bou)

0.0.6 - 2024-11-18

Fixed

  • Fix database truncation caused by limbo-wasm opening file in wrong mode (Pere Diaz Bou)

0.0.5 - 2024-11-18

Added

  • CREATE TABLE support (Pere Diaz Bou)

  • Add Add Database.prepare() and Statement.all() to Wasm bindings (Pekka Enberg)

  • WAL improvements (Pere Diaz Bou)

  • Primary key index scans and single-column secondary index scans (Jussi Saurio)

  • GROUP BY support (Jussi Saurio)

  • Overflow page support (Pere Diaz Bou)

  • Improvements to Python bindings (Jean Arhancet and Lauri Virtanen)

  • Improve scalar function support (Lauri Virtanen)

Fixed

  • Panic in codegen with COUNT(*) (Jussi Saurio)

  • Fix LIKE to be case insensitive (RJ Barman)

0.0.4 - 2024-08-22

  • Query planner rewrite (Jussi Saurio)

  • Initial pass on Python bindings (Jean Arhancet)

  • Improve scalar function support (Kim Seon Woo and Jean Arhancet)

Added

  • Partial support for json() function (Jean Arhancet)

0.0.3 - 2024-08-01

Added

  • Initial pass on the write path. Note that the write path is not transactional yet. (Pere Diaz Bou)

  • More scalar functions: unicode() (Ethan Niser)

  • Optimize point queries with integer keys (Jussi Saurio)

Fixed

  • ORDER BY support for nullable sorting columns and qualified identifiers (Jussi Saurio)

  • Fix .schema command crash in the CLI (#212 (Jussi Saurio)

0.0.2 - 2024-07-24

Added

  • Partial LEFT JOIN support.

  • Partial ORDER BY support.

  • Partial scalar function support.

Fixed

  • Lock database file with POSIX filesystem advisory lock when database is opened to prevent concurrent processes from corrupting a file. Please note that the locking scheme differs from SQLite, which uses POSIX advisory locks for every transaction. We're defaulting to locking on open because it's faster. (Issue #94)

Changed

  • Install to ~/.limbo/ instead of CARGO_HOME.

0.0.1 - 2024-07-17

Added

  • Partial SELECT statement support, including WHERE, LIKE, LIMIT, CROSS JOIN, and INNER JOIN.

  • Aggregate function support.

  • EXPLAIN statement support.

  • Partial PRAGMA statement support, including cache_size.

  • Asynchronous I/O support with Linux io_uring using direct I/O and Darwin kqueue.

  • Initial pass on command line shell with following commands: