* Support identifiers beginning with digits in MySQL (apache#856)

* support COPY INTO in snowflake (apache#841)

Signed-off-by: Pawel Leszczynski <leszczynski.pawel@gmail.com>

* Add `dialect_from_str` and improve `Dialect` documentation (apache#848)

* Add `dialect_from_str` and improve `Dialect` documentation

* cleanup

* fix compilation with nostd

* Support multiple-table DELETE syntax (apache#855)

* Support `DISTINCT ON (...)` (apache#852)

* Support "DISTINCT ON (...)"

* a test

* fix the merge

* Test trailing commas (apache#859)

* test: add tests for trailing commas

* tweaks

* Add support for query source in COPY .. TO statement (apache#858)

* Add support for query source in COPY .. TO statement

* Fix compile error

* Fix logical merge conflict (apache#865)

* Fix tiny typo in custom_sql_parser.md (apache#864)

* Make Expr::Interval its own struct (apache#872)

* Make Expr::Interval its own struct

* Add test interval display

* Fix cargo fmt

* Include license file in published crate (apache#871)

* Add support for multiple expressions, order by in aggregations (apache#879)

* Add support for multiple expressions, order by in aggregations

* Fix formatting errors

* Resolve linter errors

* Add parse_multipart_identifier function to parser (apache#860)

* Add parse_multipart_identifier function to parser

* Update doc for parse_multipart_identifier

* Fix conflict

* feat: Add custom operator (apache#868)

* feat: Add custom operator

From apache#863

- It doesn't parse anything — I'm not sure how to parse ` SELECT 'a' REGEXP '^[a-d]';` with `REGEXP` as the operator... (but fine for my narrow purpose)
- If we need tests, where would I add them?

* Update src/ast/operator.rs

---------

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>

* feat: Support MySQL's `DIV` operator (apache#876)

* feat: MySQL's DIV operator

* fix: do not use `_` prefix for used variable

---------

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>

* truncate: table as optional keyword (apache#883)

Signed-off-by: Maciej Obuchowski <obuchowski.maciej@gmail.com>

* feat: add DuckDB dialect (apache#878)

* feat: add DuckDB dialect

* formatting

* fix conflict

* support // in GenericDialect

* add DucDbDialect to all_dialects

* add comment from suggestion

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>

* fix: support // in GenericDialect

---------

Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>

* Add support for first, last aggregate function parsing (apache#882)

* Add order by parsing to functions

* Fix doc error

* minor changes

* Named window frames (apache#881)

* after over clause, named window can be parsed with window ... as after having clause

* Lint errors are fixed

* Support for multiple windows

* fix lint errors

* simplifications

* rename function

* Rewrite named window search in functional style

* Test added and some minor changes

* Minor changes on tests and namings, and semantic check is removed

---------

Co-authored-by: Mustafa Akur <mustafa.akur@synnada.ai>
Co-authored-by: Mehmet Ozan Kabak <ozankabak@gmail.com>

* Fix merge conflict (apache#885)

* Update CHANGELOG for `0.34.0` release (apache#884)

* chore: Release sqlparser version 0.34.0

* Update criterion requirement from 0.4 to 0.5 in /sqlparser_bench (apache#890)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

---------

Signed-off-by: Pawel Leszczynski <leszczynski.pawel@gmail.com>
Signed-off-by: Maciej Obuchowski <obuchowski.maciej@gmail.com>
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: AviRaboah <91826424+AviRaboah@users.noreply.github.com>
Co-authored-by: pawel.leszczynski <leszczynski.pawel@gmail.com>
Co-authored-by: Andrew Lamb <andrew@nerdnetworks.org>
Co-authored-by: Aljaž Mur Eržen <aljazerzen@users.noreply.github.com>
Co-authored-by: Armin Primadi <aprimadi@gmail.com>
Co-authored-by: Okue <nogideca@gmail.com>
Co-authored-by: Andrew Kane <acekane1@gmail.com>
Co-authored-by: Mustafa Akur <106137913+mustafasrepo@users.noreply.github.com>
Co-authored-by: Jeffrey <22608443+Jefffrey@users.noreply.github.com>
Co-authored-by: Maximilian Roos <5635139+max-sixty@users.noreply.github.com>
Co-authored-by: eitsupi <50911393+eitsupi@users.noreply.github.com>
Co-authored-by: Maciej Obuchowski <obuchowski.maciej@gmail.com>
Co-authored-by: Berkay Şahin <124376117+berkaysynnada@users.noreply.github.com>
Co-authored-by: Mustafa Akur <mustafa.akur@synnada.ai>
Co-authored-by: Mehmet Ozan Kabak <ozankabak@gmail.com>
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