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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project aims to adhere to Semantic Versioning.

Given that the parser produces a typed AST, any changes to the AST will technically be breaking and thus will result in a 0.(N+1) version. We document changes that break via addition as "Added".

[Unreleased]

Check https://github.com/sqlparser-rs/sqlparser-rs/commits/main for undocumented changes.

[0.41.0] 2023-12-22

Added

  • Support DEFERRED, IMMEDIATE, and EXCLUSIVE in SQLite's BEGIN TRANSACTION command (#1067) - Thanks @takaebato
  • Support generated columns skipping GENERATED ALWAYS keywords (#1058) - Thanks @takluyver
  • Support LOCK/UNLOCK TABLES for MySQL (#1059) - Thanks @zzzdong
  • Support JSON_TABLE (#1062) - Thanks @lovasoa
  • Support CALL statements (#1063) - Thanks @lovasoa

Fixed

  • fix rendering of SELECT TOP (#1070) for Snowflake - Thanks jmhain

Changed

  • Improve documentation formatting (#1068) - Thanks @alamb
  • Replace type_id() by trait method to allow wrapping dialects (#1065) - Thanks @jjbayer
  • Document that comments aren't preserved for round trip (#1060) - Thanks @takluyver
  • Update sqlparser-derive to use syn 2.0 (#1040) - Thanks @serprex

[0.40.0] 2023-11-27

Added

  • Add {pre,post}_visit_query to Visitor (#1044) - Thanks @jmhain
  • Support generated virtual columns with expression (#1051) - Thanks @takluyver
  • Support PostgreSQL END (#1035) - Thanks @tobyhede
  • Support INSERT INTO ... DEFAULT VALUES ... (#1036) - Thanks @CDThomas
  • Support RELEASE and ROLLBACK TO SAVEPOINT (#1045) - Thanks @CDThomas
  • Support CONVERT expressions (#1048) - Thanks @lovasoa
  • Support GLOBAL and SESSION parts in SHOW VARIABLES for mysql and generic - Thanks @emin100
  • Support snowflake PIVOT on derived table factors (#1027) - Thanks @lustefaniak
  • Support mssql json and xml extensions (#1043) - Thanks @lovasoa
  • Support for MAX as a character length (#1038) - Thanks @lovasoa
  • Support IN () syntax of SQLite (#1028) - Thanks @alamb

Fixed

  • Fix extra whitespace printed before ON CONFLICT (#1037) - Thanks @CDThomas

Changed

  • Document round trip ability (#1052) - Thanks @alamb
  • Add PRQL to list of users (#1031) - Thanks @vanillajonathan

[0.39.0] 2023-10-27

Added

  • Support for LATERAL FLATTEN and similar (#1026) - Thanks @lustefaniak
  • Support BigQuery struct, array and bytes , int64, float64 datatypes (#1003) - Thanks @iffyio
  • Support numbers as placeholders in Snowflake (e.g. :1) (#1001) - Thanks @yuval-illumex
  • Support date 'key' when using semi structured data (#1023) @yuval-illumex
  • Support IGNORE|RESPECT NULLs clause in window functions (#998) - Thanks @yuval-illumex
  • Support for single-quoted identifiers (#1021) - Thanks @lovasoa
  • Support multiple PARTITION statements in ALTER TABLE ADD statement (#1011) - Thanks @bitemyapp
  • Support "with" identifiers surrounded by backticks in GenericDialect (#1010) - Thanks @bitemyapp
  • Support INSERT IGNORE in MySql and GenericDialect (#1004) - Thanks @emin100
  • Support SQLite pragma statement (#969) - Thanks @marhoily
  • Support position as a column name (#1022) - Thanks @lustefaniak
  • Support FILTER in Functions (for OVER) clause (#1007) - Thanks @lovasoa
  • Support SELECT * EXCEPT/REPLACE syntax from ClickHouse (#1013) - Thanks @lustefaniak
  • Support subquery as function arg w/o parens in Snowflake dialect (#996) - Thanks @jmhain
  • Support UNION DISTINCT BY NAME syntax (#997) - Thanks @alexander-beedie
  • Support mysql RLIKE and REGEXP binary operators (#1017) - Thanks @lovasoa
  • Support bigquery CAST AS x [STRING|DATE] FORMAT syntax (#978) - Thanks @lustefaniak
  • Support Snowflake/BigQuery TRIM. (#975) - Thanks @zdenal
  • Support CREATE [TEMPORARY|TEMP] VIEW [IF NOT EXISTS] (#993) - Thanks @gabivlj
  • Support for CREATE VIEW … WITH NO SCHEMA BINDING Redshift (#979) - Thanks @lustefaniak
  • Support UNPIVOT and a fix for chained PIVOTs (#983) - @jmhain
  • Support for LIMIT BY (#977) - Thanks @lustefaniak
  • Support for mixed BigQuery table name quoting (#971) - Thanks @iffyio
  • Support DELETE with ORDER BY and LIMIT (MySQL) (#992) - Thanks @ulrichsg
  • Support EXTRACT for DAYOFWEEK, DAYOFYEAR, ISOWEEK, TIME (#980) - Thanks @lustefaniak
  • Support ATTACH DATABASE (#989) - Thanks @lovasoa

Fixed

  • Fix handling of /~% in Snowflake stage name (#1009) - Thanks @lustefaniak
  • Fix column COLLATE not displayed (#1012) - Thanks @lustefaniak
  • Fix for clippy 1.73 (#995) - Thanks @alamb

Changed

  • Test to ensure + - * / % binary operators work the same in all dialects (#1025) - Thanks @lustefaniak
  • Improve documentation on Parser::consume_token and friends (#994) - Thanks @alamb
  • Test that regexp can be used as an identifier in postgres (#1018) - Thanks @lovasoa
  • Add docstrings for Dialects, update README (#1016) - Thanks @alamb
  • Add JumpWire to users in README (#990) - Thanks @hexedpackets
  • Add tests for clickhouse: tokenize == as Token::DoubleEq (#981)- Thanks @lustefaniak

[0.38.0] 2023-09-21

Added

  • Support ==operator for Sqlite (#970) - Thanks @marhoily
  • Support mysql PARTITION to table selection (#959) - Thanks @chunshao90
  • Support UNNEST as a table factor for PostgreSQL (#968) @hexedpackets
  • Support MySQL UNIQUE KEY syntax (#962) - Thanks @artorias1024
  • Support GROUP BY ALL` (#964) - @berkaysynnada
  • Support multiple actions in one ALTER TABLE statement (#960) - Thanks @ForbesLindesay
  • Add --sqlite param to CLI (#956) - Thanks @ddol

Fixed

  • Fix Rust 1.72 clippy lints (#957) - Thanks @alamb

Changed

  • Add missing token loc in parse err msg (#965) - Thanks @ding-young
  • Change how ANY and ALL expressions are represented in AST (#963) - Thanks @SeanTroyUWO
  • Show location info in parse errors (#958) - Thanks @MartinNowak
  • Update release documentation (#954) - Thanks @alamb
  • Break test and coverage test into separate jobs (#949) - Thanks @alamb

[0.37.0] 2023-08-22

Added

  • Support FOR SYSTEM_TIME AS OF table time travel clause support, visit_table_factor to Visitor (#951) - Thanks @gruuya
  • Support MySQL auto_increment offset in table definition (#950) - Thanks @ehoeve
  • Test for mssql table name in square brackets (#952) - Thanks @lovasoa
  • Support additional Postgres CREATE INDEX syntax (#943) - Thanks @ForbesLindesay
  • Support ALTER ROLE syntax of PostgreSQL and MS SQL Server (#942) - Thanks @r4ntix
  • Support table-level comments (#946) - Thanks @ehoeve
  • Support DROP TEMPORARY TABLE, MySQL syntax (#916) - Thanks @liadgiladi
  • Support posgres type alias (#933) - Thanks @Kikkon

Fixed

  • Clarify the value of the special flag (#948) - Thanks @alamb
  • Fix SUBSTRING from/to argument construction for mssql (#947) - Thanks @jmaness
  • Fix: use Rust idiomatic capitalization for newly added DataType enums (#939) - Thanks @Kikkon
  • Fix BEGIN TRANSACTION being serialized as START TRANSACTION (#935) - Thanks @lovasoa
  • Fix parsing of datetime functions without parenthesis (#930) - Thanks @lovasoa

[0.36.1] 2023-07-19

Fixed

  • Fix parsing of identifiers after '%' symbol (#927) - Thanks @alamb

[0.36.0] 2023-07-19

Added

  • Support toggling "unescape" mode to retain original escaping (#870) - Thanks @canalun
  • Support UNION (ALL) BY NAME syntax (#915) - Thanks @parkma99
  • Add doc comment for all operators (#917) - Thanks @izveigor
  • Support PGOverlap operator (#912) - Thanks @izveigor
  • Support multi args for unnest (#909) - Thanks @jayzhan211
  • Support ALTER VIEW, MySQL syntax (#907) - Thanks @liadgiladi
  • Add DeltaLake keywords (#906) - Thanks @roeap

Fixed

  • Parse JsonOperators correctly (#913) - Thanks @izveigor
  • Fix dependabot by removing rust-toolchain toml (#922) - Thanks @alamb

Changed

  • Clean up JSON operator tokenizing code (#923) - Thanks @alamb
  • Upgrade bigdecimal to 0.4.1 (#921) - Thanks @jinlee0
  • Remove most instances of #[cfg(feature(bigdecimal))] in tests (#910) - Thanks @alamb

[0.35.0] 2023-06-23

Added

  • Support CREATE PROCEDURE of MSSQL (#900) - Thanks @delsehi
  • Support DuckDB's CREATE MACRO statements (#897) - Thanks @MartinNowak
  • Support for CREATE TYPE (AS) statements (#888) - Thanks @srijs
  • Support STRICT tables of sqlite (#903) - Thanks @parkma99

Fixed

  • Fixed precedence of unary negation operator with operators: Mul, Div and Mod (#902) - Thanks @izveigor

Changed

  • Add support_group_by_expr to Dialect trait (#896) - Thanks @jdye64
  • Update criterion requirement from 0.4 to 0.5 in /sqlparser_bench (#890) - Thanks @dependabot (!!)

[0.34.0] 2023-05-19

Added

  • Support named window frames (#881) - Thanks @berkaysynnada, @mustafasrepo, and @ozankabak
  • Support for ORDER BY clauses in aggregate functions (#882) - Thanks @mustafasrepo
  • Support DuckDB dialect (#878) - Thanks @eitsupi
  • Support optional TABLE keyword for TRUNCATE TABLE (#883) - Thanks @mobuchowski
  • Support MySQL's DIV operator (#876) - Thanks @eitsupi
  • Support Custom operators (#868) - Thanks @max-sixty
  • Add Parser::parse_multipart_identifier (#860) - Thanks @Jefffrey
  • Support for multiple expressions, order by in ARRAY_AGG (#879) - Thanks @mustafasrepo
  • Support for query source in COPY .. TO statement (#858) - Thanks @aprimadi
  • Support DISTINCT ON (...) (#852) - Thanks @aljazerzen
  • Support multiple-table DELETE syntax (#855) - Thanks @AviRaboah
  • Support COPY INTO in SnowflakeDialect (#841) - Thanks @pawel-big-lebowski
  • Support identifiers beginning with digits in MySQL (#856) - Thanks @AviRaboah

Changed

  • Include license file in published crate (#871) - Thanks @ankane
  • Make Expr::Interval its own struct (#872) - Thanks @aprimadi
  • Add dialect_from_str and improve Dialect documentation (#848) - Thanks @alamb
  • Add clickhouse to example (#849) - Thanks @anglinb

Fixed

  • Fix merge conflict (#885) - Thanks @alamb
  • Fix tiny typo in custom_sql_parser.md (#864) - Thanks @okue
  • Fix logical merge conflict (#865) - Thanks @alamb
  • Test trailing commas (#859) - Thanks @aljazerzen

[0.33.0] 2023-04-10

Added

  • Support for Mysql Backslash escapes (enabled by default) (#844) - Thanks @cobyge
  • Support "UPDATE" statement in "WITH" subquery (#842) - Thanks @nicksrandall
  • Support PIVOT table syntax (#836) - Thanks @pawel-big-lebowski
  • Support CREATE/DROP STAGE for Snowflake (#833) - Thanks @pawel-big-lebowski
  • Support Non-Latin characters (#840) - Thanks @mskrzypkows
  • Support PostgreSQL: GENERATED { ALWAYS | BY DEFAULT } AS IDENTITY and GENERATED - Thanks @sam-mmm
  • Support IF EXISTS in COMMENT statements (#831) - Thanks @pawel-big-lebowski
  • Support snowflake alter table swap with (#825) - Thanks @pawel-big-lebowski

Changed

  • Move tests from parser.rs to appropriate parse_XX tests (#845) - Thanks @alamb
  • Correct typos in parser.rs (#838) - Thanks @felixonmars
  • Improve documentation on verified_* methods (#828) - Thanks @alamb

[0.32.0] 2023-03-6

Added

  • Support ClickHouse CREATE TABLE with ORDER BY (#824) - Thanks @ankrgyl
  • Support PostgreSQL exponentiation ^ operator (#813) - Thanks @michael-2956
  • Support BIGNUMERIC type in BigQuery (#811) - Thanks @togami2864
  • Support for optional trailing commas (#810) - Thanks @ankrgyl

Fixed

  • Fix table alias parsing regression by backing out redshift column definition list (#827) - Thanks @alamb
  • Fix typo in ReplaceSelectElement colum_name --> column_name (#822) - Thanks @togami2864

[0.31.0] 2023-03-1

Added

  • Support raw string literals for BigQuery dialect (#812) - Thanks @togami2864
  • Support SELECT * REPLACE <Expr> AS <Identifier> in BigQuery dialect (#798) - Thanks @togami2864
  • Support byte string literals for BigQuery dialect (#802) - Thanks @togami2864
  • Support columns definition list for system information functions in RedShift dialect (#769) - Thanks @mskrzypkows
  • Support TRANSIENT keyword in Snowflake dialect (#807) - Thanks @mobuchowski
  • Support JSON keyword (#799) - Thanks @togami2864
  • Support MySQL Character Set Introducers (#788) - Thanks @mskrzypkows

Fixed

  • Fix clippy error in ci (#803) - Thanks @togami2864
  • Handle offset in map key in BigQuery dialect (#797) - Thanks @Ziinc
  • Fix a typo (precendence -> precedence) (#794) - Thanks @SARDONYX-sard
  • use post_* visitors for mutable visits (#789) - Thanks @lovasoa

Changed

  • Add another known user (#787) - Thanks @joocer

[0.30.0] 2023-01-02

Added

  • Support RENAME for wildcard SELECTs (#784) - Thanks @Jefffrey
  • Add a mutable visitor (#782) - Thanks @lovasoa

Changed

  • Allow parsing of mysql empty row inserts (#783) - Thanks @Jefffrey

Fixed

  • Fix logical conflict (#785) - Thanks @alamb

[0.29.0] 2022-12-29

Highlights

  • Partial source location tracking: see #710
  • Recursion limit to prevent stack overflows: #764
  • AST visitor: #765

Added

feat: dollar-quoted strings support (#772) - Thanks @vasilev-alex

  • Add derive based AST visitor (#765) - Thanks @tustvold
  • Support ALTER INDEX {INDEX_NAME} RENAME TO {NEW_INDEX_NAME} (#767) - Thanks @devgony
  • Support CREATE TABLE ON UPDATE <expr> Function (#685) - Thanks @CEOJINSUNG
  • Support CREATE FUNCTION definition with $$ (#755)- Thanks @zidaye
  • Add location tracking in the tokenizer and parser (#710) - Thanks @ankrgyl
  • Add configurable recursion limit to parser, to protect against stackoverflows (#764) - Thanks @alamb
  • Support parsing scientific notation (such as 10e5) (#768) - Thanks @Jefffrey
  • Support DROP FUNCTION syntax (#752) - Thanks @zidaye
  • Support json operators @> <@, @? and @@ - Thanks @audunska
  • Support the type key (#750)- Thanks @yuval-illumex

Changed

  • Improve docs and add examples for Visitor (#778) - Thanks @alamb
  • Add a backlink from sqlparse_derive to sqlparser and publishing instructions (#779) - Thanks @alamb
  • Document new features, update authors (#776) - Thanks @alamb
  • Improve Readme (#774) - Thanks @alamb
  • Standardize comments on parsing optional keywords (#773) - Thanks @alamb
  • Enable grouping sets parsing for GenericDialect (#771) - Thanks @Jefffrey
  • Generalize conflict target (#762) - Thanks @audunska
  • Generalize locking clause (#759) - Thanks @audunska
  • Add negative test for except clause on wildcards (#746)- Thanks @alamb
  • Add NANOSECOND keyword (#749)- Thanks @waitingkuo

Fixed

  • ParserError if nested explain (#781) - Thanks @Jefffrey
  • Fix cargo docs / warnings and add CI check (#777) - Thanks @alamb
  • unnest join constraint with alias parsing for BigQuery dialect (#732)- Thanks @Ziinc

[0.28.0] 2022-12-05

Added

  • Support for EXCEPT clause on wildcards (#745) - Thanks @AugustoFKL
  • Support CREATE FUNCTION Postgres options (#722) - Thanks @wangrunji0408
  • Support CREATE TABLE x AS TABLE y (#704) - Thanks @sarahyurick
  • Support MySQL ROWS syntax for VALUES (#737) - Thanks @aljazerzen
  • Support WHERE condition for UPDATE ON CONFLICT (#735) - Thanks @zidaye
  • Support CLUSTER BY when creating Materialized View (#736) - Thanks @yuval-illumex
  • Support nested comments (#726) - Thanks @yang-han
  • Support USING method when creating indexes. (#731) - Thanks @step-baby and @yangjiaxin01
  • Support SEMI/ANTI JOIN syntax (#723) - Thanks @mingmwang
  • Support EXCLUDE support for snowflake and generic dialect (#721) - Thanks @AugustoFKL
  • Support MATCH AGAINST (#708) - Thanks @AugustoFKL
  • Support IF NOT EXISTS in ALTER TABLE ADD COLUMN (#707) - Thanks @AugustoFKL
  • Support SET TIME ZONE <value> (#727) - Thanks @waitingkuo
  • Support UPDATE ... FROM ( subquery ) (#694) - Thanks @unvalley

Changed

  • Add Parser::index() method to get current parsing index (#728) - Thanks @neverchanje
  • Add COMPRESSION as keyword (#720)- Thanks @AugustoFKL
  • Derive PartialOrd, Ord, and Copy whenever possible (#717) - Thanks @AugustoFKL
  • Fixed INTERVAL parsing logic and precedence (#705) - Thanks @sarahyurick
  • Support updating multiple column names whose names are the same as(#725) - Thanks @step-baby

Fixed

  • Clean up some redundant code in parser (#741) - Thanks @alamb
  • Fix logical conflict - Thanks @alamb
  • Cleanup to avoid is_ok() (#740) - Thanks @alamb
  • Cleanup to avoid using unreachable! when parsing semi/anti join (#738) - Thanks @alamb
  • Add an example to docs to clarify semantic analysis (#739) - Thanks @alamb
  • Add information about parting semantic logic to README.md (#724) - Thanks @AugustoFKL
  • Logical conflicts - Thanks @alamb
  • Tiny typo in docs (#709) - Thanks @pmcgee69

[0.27.0] 2022-11-11

Added

  • Support ON CONFLICT and RETURNING in UPDATE statement (#666) - Thanks @main and @gamife
  • Support FULLTEXT option on create table for MySQL and Generic dialects (#702) - Thanks @AugustoFKL
  • Support ARRAY_AGG for Bigquery and Snowflake (#662) - Thanks @SuperBo
  • Support DISTINCT for SetOperator (#689) - Thanks @unvalley
  • Support the ARRAY type of Snowflake (#699) - Thanks @yuval-illumex
  • Support create sequence with options INCREMENT, MINVALUE, MAXVALUE, START etc. (#681) - Thanks @sam-mmm
  • Support : operator for semi-structured data in Snowflake(#693) - Thanks @yuval-illumex
  • Support ALTER TABLE DROP PRIMARY KEY (#682) - Thanks @ding-young
  • Support NUMERIC and DEC ANSI data types (#695) - Thanks @AugustoFKL
  • Support modifiers for Custom Datatype (#680) - Thanks @sunng87

Changed

  • Add precision for TIME, DATETIME, and TIMESTAMP data types (#701) - Thanks @AugustoFKL
  • add Date keyword (#691) - Thanks @sarahyurick
  • Update simple_logger requirement from 2.1 to 4.0 - Thanks @dependabot

Fixed

  • Fix broken DataFusion link (#703) - Thanks @jmg-duarte
  • Add MySql, BigQuery to all dialects tests, fixed bugs (#697) - Thanks @omer-shtivi

[0.26.0] 2022-10-19

Added

  • Support MySQL table option {INDEX | KEY} in CREATE TABLE definiton (#665) - Thanks @AugustoFKL
  • Support CREATE [ { TEMPORARY | TEMP } ] SEQUENCE [ IF NOT EXISTS ] <sequence_name> (#678) - Thanks @sam-mmm
  • Support DROP SEQUENCE statement (#673) - Thanks @sam-mmm
  • Support for ANSI types CHARACTER LARGE OBJECT[(p)] and CHAR LARGE OBJECT[(p)] (#671) - Thanks @AugustoFKL
  • Support [CACHE|UNCACHE] TABLE (#670) - Thanks @francis-du
  • Support CEIL(expr TO DateTimeField) and FLOOR(expr TO DateTimeField) - Thanks @sarahyurick
  • Support all ansii character string types, (#648) - Thanks @AugustoFKL

Changed

  • Support expressions inside window frames (#655) - Thanks @mustafasrepo and @ozankabak
  • Support unit on char length units for small character strings (#663) - Thanks @AugustoFKL
  • Replace booleans on SET ROLE with a single enum. (#664) - Thanks @AugustoFKL
  • Replace Options with enum for DECIMAL precision (#654) - Thanks @AugustoFKL

[0.25.0] 2022-10-03

Added

  • Support AUTHORIZATION clause in CREATE SCHEMA statements (#641) - Thanks @AugustoFKL
  • Support optional precision for CLOB and BLOB (#639) - Thanks @AugustoFKL
  • Support optional precision in VARBINARY and BINARY (#637) - Thanks @AugustoFKL

Changed

  • TIMESTAMP and TIME parsing preserve zone information (#646) - Thanks @AugustoFKL

Fixed

  • Correct order of arguments when parsing LIMIT x,y , restrict to MySql and Generic dialects - Thanks @AugustoFKL

[0.24.0] 2022-09-29

Added

  • Support MILLENNIUM (2 Ns) (#633) - Thanks @sarahyurick
  • Support MEDIUMINT (#630) - Thanks @AugustoFKL
  • Support DOUBLE PRECISION (#629) - Thanks @AugustoFKL
  • Support precision in CLOB, BINARY, VARBINARY, BLOB data type (#618) - Thanks @ding-young
  • Support CREATE ROLE and DROP ROLE (#598) - Thanks @blx
  • Support full range of sqlite prepared statement placeholders (#604) - Thanks @lovasoa
  • Support National string literal with lower case n (#612) - Thanks @mskrzypkows
  • Support SHOW FUNCTIONS (#620) - Thanks @joocer
  • Support set time zone to 'some-timezone' (#617) - Thanks @waitingkuo

Changed

  • Move Value::Interval to Expr::Interval (#609) - Thanks @ding-young
  • Update criterion dev-requirement from 0.3 to 0.4 in /sqlparser_bench (#611) - Thanks @dependabot
  • Box Query in Cte (#572) - Thanks @MazterQyou

Other

  • Disambiguate CREATE ROLE ... USER and GROUP (#628) - Thanks @alamb
  • Add test for optional WITH in CREATE ROLE (#627) - Thanks @alamb

[0.23.0] 2022-09-08

Added

  • Add support for aggregate expressions with filters (#585) - Thanks @andygrove
  • Support LOCALTIME and LOCALTIMESTAMP time functions (#592) - Thanks @MazterQyou

[0.22.0] 2022-08-26

Added

  • Support OVERLAY expressions (#594) - Thanks @ayushg
  • Support WITH TIMEZONE and WITHOUT TIMEZONE when parsing TIMESTAMP expressions (#589) - Thanks @waitingkuo
  • Add ability for dialects to override prefix, infix, and statement parsing (#581) - Thanks @andygrove

[0.21.0] 2022-08-18

Added

  • Support IS [NOT] TRUE, IS [NOT] FALSE, and IS [NOT] UNKNOWN - Thanks (#583) @sarahyurick
  • Support SIMILAR TO syntax (#569) - Thanks @ayushdg
  • Support SHOW COLLATION (#564) - Thanks @MazterQyou
  • Support SHOW TABLES (#563) - Thanks @MazterQyou
  • Support SET NAMES literal [COLLATE literal] (#558) - Thanks @ovr
  • Support trailing commas (#557) in BigQuery dialect - Thanks @komukomo
  • Support USE <DB> (#565) - Thanks @MazterQyou
  • Support SHOW COLUMNS FROM tbl FROM db (#562) - Thanks @MazterQyou
  • Support SHOW VARIABLES for MySQL dialect (#559) - Thanks @ovr and @vasilev-alex

Changed

  • Support arbitrary expression in SET statement (#574) - Thanks @ovr and @vasilev-alex
  • Parse LIKE patterns as Expr not Value (#579) - Thanks @andygrove
  • Update Ballista link in README (#576) - Thanks @sanxiyn
  • Parse TRIM from with optional expr and FROM expr (#573) - Thanks @ayushdg
  • Support PostgreSQL array subquery constructor (#566) - Thanks @MazterQyou
  • Clarify contribution licensing (#570) - Thanks @alamb
  • Update for new clippy ints (#571) - Thanks @alamb
  • Change Like and ILike to Expr variants, allow escape char (#569) - Thanks @ayushdg
  • Parse special keywords as functions (current_user, user, etc) (#561) - Thanks @ovr
  • Support expressions in LIMIT/OFFSET (#567) - Thanks @MazterQyou

[0.20.0] 2022-08-05

Added

  • Support custom OPERATOR postgres syntax (#548) - Thanks @iskakaushik
  • Support SAFE_CAST for BigQuery (#552) - Thanks @togami2864

Changed

  • Added SECURITY.md (#546) - Thanks @JamieSlome
  • Allow >> and << binary operators in Generic dialect (#553) - Thanks @ovr
  • Allow NestedJoin with an alias (#551) - Thanks @waitingkuo

[0.19.0] 2022-07-28

Added

  • Support ON CLUSTER for CREATE TABLE statement (ClickHouse DDL) (#527) - Thanks @andyrichardson
  • Support empty ARRAY literals (#532) - Thanks @bitemyapp
  • Support AT TIME ZONE clause (#539) - Thanks @bitemyapp
  • Support USING clause and table aliases in DELETE (#541) - Thanks @mobuchowski
  • Support SHOW CREATE VIEW statement (#536) - Thanks @mrob95
  • Support CLONE clause in CREATE TABLE statements (#542) - Thanks @mobuchowski
  • Support WITH OFFSET Alias in table references (#528) - Thanks @sivchari
  • Support double quoted (") literal strings: (#530) - Thanks @komukomo
  • Support ON UPDATE clause on column definitions in CREATE TABLE statements (#522) - Thanks @frolovdev

Changed:

  • Boxed Query body to save stack space (#540) - Thanks @5tan
  • Distinguish between INT and INTEGER types (#525) - Thanks @frolovdev
  • Parse WHERE NOT EXISTS as Expr::Exists rather than Expr::UnaryOp for consistency (#523) - Thanks @frolovdev
  • Support Expr instead of String for argument to INTERVAL (#517) - Thanks @togami2864

Fixed:

  • Report characters instead of bytes in error messages (#529) - Thanks @michael-2956

[0.18.0] 2022-06-06

Added

  • Support CLOSE (cursors) (#515) - Thanks @ovr
  • Support DECLARE (cursors) (#509) - Thanks @ovr
  • Support FETCH (cursors) (#510) - Thanks @ovr
  • Support DATETIME keyword (#512) - Thanks @komukomo
  • Support UNNEST as a table factor (#493) - Thanks @sivchari
  • Support CREATE FUNCTION (hive flavor) (#496) - Thanks @mobuchowski
  • Support placeholders ($ or ?) in LIMIT clause (#494) - Thanks @step-baby
  • Support escaped string literals (PostgreSQL) (#502) - Thanks @ovr
  • Support IS TRUE and IS FALSE (#499) - Thanks @ovr
  • Support DISCARD [ALL | PLANS | SEQUENCES | TEMPORARY | TEMP] (#500) - Thanks @gandronchik
  • Support array<..> HIVE data types (#491) - Thanks @mobuchowski
  • Support SET values that begin with - #495 - Thanks @mobuchowski
  • Support unicode whitespace (#482) - Thanks @alexsatori
  • Support BigQuery dialect (#490) - Thanks @komukomo

Changed:

  • Add docs for MapAccess (#489) - Thanks @alamb
  • Rename ArrayIndex::indexs to ArrayIndex::indexes (#492) - Thanks @alamb

Fixed:

  • Fix escaping of trailing quote in quoted identifiers (#505) - Thanks @razzolini-qpq
  • Fix parsing of COLLATE after parentheses in expressions (#507) - Thanks @razzolini-qpq
  • Distinguish tables and nullary functions in FROM (#506) - Thanks @razzolini-qpq
  • Fix MERGE INTO semicolon handling (#508) - Thanks @mskrzypkows

[0.17.0] 2022-05-09

Added

  • Support # as first character in field name for RedShift dialect (#485) - Thanks @yuval-illumex
  • Support for postgres composite types (#466) - Thanks @poonai
  • Support TABLE keyword with SELECT INTO (#487) - Thanks @MazterQyou
  • Support ANY/ALL operators (#477) - Thanks @ovr
  • Support ArrayIndex in GenericDialect (#480) - Thanks @ovr
  • Support Redshift dialect, handle square brackets properly (#471) - Thanks @mskrzypkows
  • Support KILL statement (#479) - Thanks @ovr
  • Support QUALIFY clause on SELECT for Snowflake dialect (#465) - Thanks @mobuchowski
  • Support POSITION(x IN y) function syntax (#463) @yuval-illumex
  • Support global,local, on commit for create temporary table (#456) - Thanks @gandronchik
  • Support NVARCHAR data type (#462) - Thanks @yuval-illumex
  • Support for postgres json operators ->, ->>, #>, and #>> (#458) - Thanks @poonai
  • Support SET ROLE statement (#455) - Thanks @slhmy

Changed:

  • Improve docstrings for KILL statement (#481) - Thanks @alamb
  • Add negative tests for POSITION (#469) - Thanks @alamb
  • Add negative tests for IN parsing (#468) - Thanks @alamb
  • Suppport table names (as well as subqueries) as source in MERGE statements (#483) - Thanks @mskrzypkows

Fixed:

  • INTO keyword is optional for INSERT, MERGE (#473) - Thanks @mobuchowski
  • Support IS TRUE and IS FALSE expressions in boolean filter (#474) - Thanks @yuval-illumex
  • Support fully qualified object names in SET VARIABLE (#484) - Thanks mobuchowski

[0.16.0] 2022-04-03

Added

  • Support WEEK keyword in EXTRACT (#436) - Thanks @Ted-Jiang
  • Support MERGE statement (#430) - Thanks @mobuchowski
  • Support SAVEPOINT statement (#438) - Thanks @poonai
  • Support TO clause in COPY (#441) - Thanks @matthewmturner
  • Support CREATE DATABASE statement (#451) - Thanks @matthewmturner
  • Support FROM clause in UPDATE statement (#450) - Thanks @slhmy
  • Support additional COPY options (#446) - Thanks @wangrunji0408

Fixed:

  • Bug in array / map access parsing (#433) - Thanks @monadbobo

[0.15.0] 2022-03-07

Added

  • Support for ClickHouse array types (e.g. [1,2,3]) (#429) - Thanks @monadbobo
  • Support for unsigned tinyint, unsigned int, unsigned smallint and unsigned bigint datatypes (#428) - Thanks @watarukura
  • Support additional keywords for EXTRACT (#427) - Thanks @mobuchowski
  • Support IN UNNEST(expression) (#426) - Thanks @komukomo
  • Support COLLATION keywork on CREATE TABLE (#424) - Thanks @watarukura
  • Support FOR UPDATE/FOR SHARE clause (#418) - Thanks @gamife
  • Support prepared statement placeholder arg ? and $ (#420) - Thanks @gamife
  • Support array expressions such as ARRAY[1,2] , foo[1] and INT[][] (#419) - Thanks @gamife

Changed:

  • remove Travis CI (#421) - Thanks @efx

Fixed:

  • Allow array to be used as a function name again (#432) - @alamb
  • Update docstring reference to Query (#423) - Thanks @max-sixty

[0.14.0] 2022-02-09

Added

  • Support CURRENT_TIMESTAMP, CURRENT_TIME, and CURRENT_DATE (#391) - Thanks @yuval-illumex
  • SUPPORT SUPER keyword (#387) - Thanks @flaneur2020
  • Support differing orders of OFFSET LIMIT as well as LIMIT OFFSET (#413) - Thanks @yuval-illumex
  • Support for FROM <filename>, DELIMITER, and CSV HEADER options for COPY command (#409) - Thanks @poonai
  • Support CHARSET and ENGINE clauses on CREATE TABLE for mysql (#392) - Thanks @antialize
  • Support DROP CONSTRAINT [ IF EXISTS ] <name> [ CASCADE ] (#396) - Thanks @tvallotton
  • Support parsing tuples and add Expr::Tuple (#414) - @alamb
  • Support MySQL style LIMIT X, Y (#415) - @alamb
  • Support SESSION TRANSACTION and TRANSACTION SNAPSHOT. (#379) - Thanks @poonai
  • Support ALTER COLUMN and RENAME CONSTRAINT (#381) - Thanks @zhamlin
  • Support for Map access, add ClickHouse dialect (#382) - Thanks @monadbobo

Changed

  • Restrict where wildcard (*) can appear, add to FunctionArgExpr remove Expr::[Qualified]Wildcard, (#378) - Thanks @panarch
  • Update simple_logger requirement from 1.9 to 2.1 (#403)
  • export all methods of parser (#397) - Thanks @neverchanje!
  • Clarify maintenance status on README (#416) - @alamb

Fixed

  • Fix new clippy errors (#412) - @alamb
  • Fix panic with GRANT/REVOKE in CONNECT, CREATE, EXECUTE or TEMPORARY - Thanks @evgenyx00
  • Handle double quotes inside quoted identifiers correctly (#411) - Thanks @Marwes
  • Handle mysql backslash escaping (#373) - Thanks @vasilev-alex

[0.13.0] 2021-12-10

Added

  • Add ALTER TABLE CHANGE COLUMN, extend the UPDATE statement with ON clause (#375) - Thanks @0xA537FD!
  • Add support for GROUPIING SETS, ROLLUP and CUBE - Thanks @Jimexist!
  • Add basic support for GRANT and REVOKE (#365) - Thanks @blx!

Changed

  • Use Rust 2021 edition (#368) - Thanks @Jimexist!

Fixed

  • Fix clippy errors (#367, #374) - Thanks @Jimexist!

[0.12.0] 2021-10-14

Added

  • Add support for [NOT] IS DISTINCT FROM (#306) - @Dandandan

Changed

  • Move the keywords module - Thanks @koushiro!

[0.11.0] 2021-09-24

Added

  • Support minimum display width for integer data types (#337) Thanks @vasilev-alex!
  • Add logical XOR operator (#357) - Thanks @xzmrdltl!
  • Support DESCRIBE table_name (#340) - Thanks @ovr!
  • Support SHOW CREATE TABLE|EVENT|FUNCTION (#338) - Thanks @ovr!
  • Add referential actions to TableConstraint foreign key (#306) - Thanks @joshwd36!

Changed

  • Enable map access for numbers, multiple nesting levels (#356) - Thanks @Igosuki!
  • Rename Token::Mult to Token::Mul (#353) - Thanks @koushiro!
  • Use derive(Default) for HiveFormat (#348) - Thanks @koushiro!
  • Improve tokenizer error (#347) - Thanks @koushiro!
  • Eliminate redundant string copy in Tokenizer (#343) - Thanks @koushiro!
  • Update bigdecimal requirement from 0.2 to 0.3 dependencies (#341)
  • Support parsing hexadecimal literals that start with 0x (#324) - Thanks @TheSchemm!

[0.10.0] 2021-08-23

Added

  • Support for no_std (#332) - Thanks @koushiro!
  • Postgres regular expression operators (~, ~*, !~, !~*) (#328) - Thanks @b41sh!
  • tinyint (#320) - Thanks @sundy-li
  • ILIKE (#300) - Thanks @maxcountryman!
  • TRIM syntax (#331, #334) - Thanks ever0de

Fixed

  • Return error instead of panic (#316) - Thanks @BohuTANG!

Changed

  • Rename Modulus to Modulo (#335) - Thanks @RGRAVITY817!
  • Update links to reflect repository move to sqlparser-rs GitHub org (#333) - Thanks @andygrove
  • Add default value for WindowFrame (#313) - Thanks @Jimexist!

[0.9.0] 2021-03-21

Added

  • Add support for TRY_CAST syntax (#299) - Thanks @seddonm1!

[0.8.0] 2021-02-20

Added

  • Introduce Hive QL dialect HiveDialect and syntax (#235) - Thanks @hntd187!
  • Add SUBSTRING(col [FROM <expr>] [FOR <expr>]) syntax (#293)
  • Support parsing floats without leading digits .01 (#294)
  • Support parsing multiple show variables (#290) - Thanks @francis-du!
  • Support SQLite INSERT OR [..] syntax (#281) - Thanks @zhangli-pear!

[0.7.0] 2020-12-28

Changed

  • Change the MySQL dialect to support `identifiers` quoted with backticks instead of the standard "double-quoted" identifiers (#247) - thanks @mashuai!
  • Update bigdecimal requirement from 0.1 to 0.2 (#268)

Added

  • Enable dialect-specific behaviours in the parser (dialect_of!()) (#254) - thanks @eyalleshem!
  • Support named arguments in function invocations (ARG_NAME => val) (#250) - thanks @eyalleshem!
  • Support TABLE() functions in FROM (#253) - thanks @eyalleshem!
  • Support Snowflake's single-line comments starting with '#' or '//' (#264) - thanks @eyalleshem!
  • Support PostgreSQL PREPARE, EXECUTE, and DEALLOCATE (#243) - thanks @silathdiir!
  • Support PostgreSQL math operators (#267) - thanks @alex-dukhno!
  • Add SQLite dialect (#248) - thanks @mashuai!
  • Add Snowflake dialect (#259) - thanks @eyalleshem!
  • Support for Recursive CTEs - thanks @rhanqtl!
  • Support FROM (table_name) alias syntax - thanks @eyalleshem!
  • Support for EXPLAIN [ANALYZE] VERBOSE - thanks @ovr!
  • Support ANALYZE TABLE
  • DDL:
    • Support OR REPLACE in CREATE VIEW/TABLE (#239) - thanks @Dandandan!
    • Support specifying ASC/DESC in index columns (#249) - thanks @mashuai!
    • Support SQLite AUTOINCREMENT and MySQL AUTO_INCREMENT column option in CREATE TABLE (#234) - thanks @mashuai!
    • Support PostgreSQL IF NOT EXISTS for CREATE SCHEMA (#276) - thanks @alex-dukhno!

Fixed

  • Fix a typo in JSONFILE serialization, introduced in 0.3.1 (#237)
  • Change CREATE INDEX serialization to not end with a semicolon, introduced in 0.5.1 (#245)
  • Don't fail parsing ALTER TABLE ADD COLUMN ending with a semicolon, introduced in 0.5.1 (#246) - thanks @mashuai

[0.6.1] - 2020-07-20

Added

  • Support BigQuery ASSERT statement (#226)

[0.6.0] - 2020-07-20

Added

  • Support SQLite's CREATE TABLE (...) WITHOUT ROWID (#208) - thanks @mashuai!
  • Support SQLite's CREATE VIRTUAL TABLE (#209) - thanks @mashuai!

[0.5.1] - 2020-06-26

This release should have been called 0.6, as it introduces multiple incompatible changes to the API. If you don't want to upgrade yet, you can revert to the previous version by changing your Cargo.toml to:

sqlparser = "= 0.5.0"

Changed

  • Parser::parse_sql now accepts a &str instead of String (#182) - thanks @Dandandan!
  • Change Ident (previously a simple String) to store the parsed (unquoted) value of the identifier and the quote_style separately (#143) - thanks @apparebit!
  • Support Snowflake's FROM (table_name) (#155) - thanks @eyalleshem!
  • Add line and column number to TokenizerError (#194) - thanks @Dandandan!
  • Use Token::EOF instead of Option (#195)
  • Make the units keyword following INTERVAL '...' optional (#184) - thanks @maxcountryman!
  • Generalize DATE/TIME/TIMESTAMP literals representation in the AST (TypedString { data_type, value }) and allow DATE and other keywords to be used as identifiers when not followed by a string (#187) - thanks @maxcountryman!
  • Output DataType capitalized (fmt::Display) (#202) - thanks @Dandandan!

Added

  • Support MSSQL TOP (<N>) [ PERCENT ] [ WITH TIES ] (#150) - thanks @alexkyllo!
  • Support MySQL LIMIT row_count OFFSET offset (not followed by ROW or ROWS) and remember which variant was parsed (#158) - thanks @mjibson!
  • Support PostgreSQL CREATE TABLE IF NOT EXISTS table_name (#163) - thanks @alex-dukhno!
  • Support basic forms of CREATE INDEX and DROP INDEX (#167) - thanks @mashuai!
  • Support ON { UPDATE | DELETE } { RESTRICT | CASCADE | SET NULL | NO ACTION | SET DEFAULT } in FOREIGN KEY constraints (#170) - thanks @c7hm4r!
  • Support basic forms of CREATE SCHEMA and DROP SCHEMA (#173) - thanks @alex-dukhno!
  • Support NULLS FIRST/LAST in ORDER BY expressions (#176) - thanks @houqp!
  • Support LISTAGG() (#174) - thanks @maxcountryman!
  • Support the string concatentation operator || (#178) - thanks @Dandandan!
  • Support bitwise AND (&), OR (|), XOR (^) (#181) - thanks @Dandandan!
  • Add serde support to AST structs and enums (#196) - thanks @panarch!
  • Support ALTER TABLE ADD COLUMN, RENAME COLUMN, and RENAME TO (#203) - thanks @mashuai!
  • Support ALTER TABLE DROP COLUMN (#148) - thanks @ivanceras!
  • Support CREATE TABLE ... AS ... (#206) - thanks @Dandandan!

Fixed

  • Report an error for unterminated string literals (#165)
  • Make file format (STORED AS) case insensitive (#200) and don't allow quoting it (#201) - thanks @Dandandan!

[0.5.0] - 2019-10-10

Changed

  • Replace the Value::Long(u64) and Value::Double(f64) variants with Value::Number(String) to avoid losing precision when parsing decimal literals (#130) - thanks @benesch!
  • --features bigdecimal can be enabled to work with Value::Number(BigDecimal) instead, at the cost of an additional dependency.

Added

  • Support MySQL SHOW COLUMNS, SET <variable>=<value>, and SHOW <variable> statements (#135) - thanks @quodlibetor and @benesch!

Fixed

  • Don't fail to parse START TRANSACTION followed by a semicolon (#139) - thanks @gaffneyk!

[0.4.0] - 2019-07-02

This release brings us closer to SQL-92 support, mainly thanks to the improvements contributed back from @MaterializeInc's fork and other work by @benesch.

Changed

  • Remove "SQL" from type and enum variant names, SQLType -> DataType, remove "sql" prefix from module names (#105, #122)
  • Rename ASTNode -> Expr (#119)
  • Improve consistency of binary/unary op nodes (#112):
    • ASTNode::SQLBinaryExpr is now Expr::BinaryOp and ASTNode::SQLUnary is Expr::UnaryOp;
    • The op: SQLOperator field is now either a BinaryOperator or an UnaryOperator.
  • Change the representation of JOINs to match the standard (#109): SQLSelect's relation and joins are replaced with from: Vec<TableWithJoins>. Before this change FROM foo NATURAL JOIN bar, baz was represented as "foo" as the relation followed by two joins (Inner(Natural) and Implicit); now it's two TableWithJoins (foo NATURAL JOIN bar and baz).
  • Extract a SQLFunction struct (#89)
  • Replace Option<Vec<T>> with Vec<T> in the AST structs (#73)
  • Change Value::Long() to be unsigned, use u64 consistently (#65)

Added

  • Infra:
    • Implement fmt::Display on AST nodes (#124) - thanks @vemoo!
    • Implement Hash (#88) and Eq (#123) on all AST nodes
    • Implement std::error::Error for ParserError (#72)
    • Handle Windows line-breaks (#54)
  • Expressions:
    • Support INTERVAL literals (#103)
    • Support DATE / TIME / TIMESTAMP literals (#99)
    • Support EXTRACT (#96)
    • Support X'hex value' literals (#95)
    • Support EXISTS subqueries (#90)
    • Support nested expressions in BETWEEN (#80)
    • Support COUNT(DISTINCT x) and similar (#77)
    • Support CASE operand WHEN expected_value THEN .. and table-valued functions (#59)
    • Support analytic (window) functions (OVER clause) (#50)
  • Queries / DML:
    • Support nested joins (#100) and derived tables with set operations (#111)
    • Support UPDATE statements (#97)
    • Support INSERT INTO foo SELECT * FROM bar and FROM VALUES (...) (#91)
    • Support SELECT ALL (#76)
    • Add FETCH and OFFSET support, and LATERAL (#69) - thanks @thomas-jeepe!
    • Support COLLATE, optional column list in CTEs (#64)
  • DDL/TCL:
    • Support START/SET/COMMIT/ROLLBACK TRANSACTION (#106) - thanks @SamuelMarks!
    • Parse column constraints in any order (#93)
    • Parse DECIMAL and DEC aliases for NUMERIC type (#92)
    • Support DROP [TABLE|VIEW] (#75)
    • Support arbitrary WITH options for CREATE [TABLE|VIEW] (#74)
    • Support constraints in CREATE TABLE (#65)
  • Add basic MSSQL dialect (#61) and some MSSQL-specific features:
    • CROSS/OUTER APPLY (#120)
    • MSSQL identifier and alias parsing rules (#66)
    • WITH hints (#59)

Fixed

  • Report an error for SELECT * FROM a OUTER JOIN b instead of parsing OUTER as an alias (#118)
  • Fix the precedence of NOT LIKE (#82) and unary NOT (#107)
  • Do not panic when NOT is not followed by an expected keyword (#71) successfully instead of returning a parse error - thanks @ivanceras! (#67) - and similar fixes for queries with no FROM (#116)
  • Fix issues with ALTER TABLE ADD CONSTRAINT parsing (#65)
  • Serialize the "not equals" operator as <> instead of != (#64)
  • Remove dependencies on uuid (#59) and chrono (#61)
  • Make SELECT query with LIMIT clause but no WHERE parse - Fix incorrect behavior of ASTNode::SQLQualifiedWildcard::to_string() (returned foo* instead of foo.*) - thanks @thomas-jeepe! (#52)

[0.3.1] - 2019-04-20

Added

  • Extended SQLStatement::SQLCreateTable to support Hive's EXTERNAL TABLES (CREATE EXTERNAL TABLE .. STORED AS .. LOCATION '..') - thanks @zhzy0077! (#46)
  • Parse SELECT DISTINCT to SQLSelect::distinct (#49)

[0.3.0] - 2019-04-03

Changed

This release includes major changes to the AST structs to add a number of features, as described in #37 and #43. In particular:

  • ASTNode variants that represent statements were extracted from ASTNode into a separate SQLStatement enum;
    • Parser::parse_sql now returns a Vec of parsed statements.
    • ASTNode now represents an expression (renamed to Expr in 0.4.0)
  • The query representation (formerly ASTNode::SQLSelect) became more complicated to support:
    • WITH and UNION/EXCEPT/INTERSECT (via SQLQuery, Cte, and SQLSetExpr),
    • aliases and qualified wildcards in SELECT (via SQLSelectItem),
    • and aliases in FROM/JOIN (via TableFactor).
  • A new SQLObjectName struct is used instead of String or ASTNode::SQLCompoundIdentifier - for objects like tables, custom types, etc.
  • Added support for "delimited identifiers" and made keywords context-specific (thus accepting them as valid identifiers in most contexts) - this caused a regression in parsing SELECT .. FROM .. LIMIT .. (#67), fixed in 0.4.0

Added

Other than the changes listed above, some less intrusive additions include:

  • Support CREATE [MATERIALIZED] VIEW statement
  • Support IN, BETWEEN, unary +/- in epressions
  • Support CHAR data type and NUMERIC not followed by (p,s).
  • Support national string literals (N'...')

[0.2.4] - 2019-03-08

Same as 0.2.2.

[0.2.3] - 2019-03-08 [YANKED]

[0.2.2] - 2019-03-08

Changed

  • Removed Value::String, Value::DoubleQuotedString, and Token::String, making
    • '...' parse as a string literal (Value::SingleQuotedString), and
    • "..." fail to parse until version 0.3.0 (#36)

[0.2.1] - 2019-01-13

We don't have a changelog for the changes made in 2018, but thanks to @crw5996, @cswinter, @fredrikroos, @ivanceras, @nickolay, @virattara for their contributions in the early stages of the project!

[0.1.0] - 2018-09-03

Initial release