Flake lock file updates:

• Updated input 'fenix':
    'github:nix-community/fenix/6ed03ef4c8ec36d193c18e06b9ecddde78fb7e42?narHash=sha256-tl/0cnsqB/Yt7DbaGMel2RLa7QG5elA8lkaOXli6VdY%3D' (2025-08-19)
  → 'github:nix-community/fenix/0956bc5d1df2ea800010172c6bc4470d9a22cb81?narHash=sha256-hmiTEoVAqLnn80UkreCNunnRKPucKvcg5T4/CELEtbw%3D' (2025-10-01)
• Updated input 'fenix/rust-analyzer-src':
    'github:rust-lang/rust-analyzer/a905e3b21b144d77e1b304e49f3264f6f8d4db75?narHash=sha256-VX0B9hwhJypCGqncVVLC%2BSmeMVd/GAYbJZ0MiiUn2Pk%3D' (2025-08-18)
  → 'github:rust-lang/rust-analyzer/a6bc4a4bbe6a65b71cbf76a0cf528c47a8d9f97f?narHash=sha256-H4Hx/EuMJ9qi1WzPV4UG2bbZiDCdREtrtDvYcHr0kmk%3D' (2025-09-30)
• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/a58390ab6f1aa810eb8e0f0fc74230e7cc06de03?narHash=sha256-BA9MuPjBDx/WnpTJ0EGhStyfE7hug8g85Y3Ju9oTsM4%3D' (2025-08-19)
  → 'github:NixOS/nixpkgs/5b5be50345d4113d04ba58c444348849f5585b4a?narHash=sha256-FIBE1qXv9TKvSNwst6FumyHwCRH3BlWDpfsnqRDCll0%3D' (2025-10-01)

* feat: update pgwire to 0.33

* test: update duckdb example

We already handle "rows affected" properly for do_query in the
SimpleQueryHandler implementation, so let's do the same for do_query in
the ExtendedQueryHandler implementation too.

To avoid duplicate code, this common logic has been extracted into a new
`map_rows_affected_for_insert` function.

…n simple query (#203)

* chore(deps): bump datafusion from 50.0.0 to 50.1.0

Bumps [datafusion](https://github.com/apache/datafusion) from 50.0.0 to 50.1.0.
- [Changelog](https://github.com/apache/datafusion/blob/main/CHANGELOG.md)
- [Commits](apache/datafusion@50.0.0...50.1.0)

---
updated-dependencies:
- dependency-name: datafusion
  dependency-version: 50.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* fix: update all datafusion packages

---------

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

…c. (#204)

* initial query hook support

* introduce QueryHook

* switch to accepting datafusion statements

* remove transaction state

* accept a vector of hooks instead of options of hooks

* add a small test

* run cargo fmt

* update trait to accept sqlparser::ast::Statement instead, so we don't need to wrap in a datafusion::Statement

* since handle_query only accepts a single statement, only a single response is expected.

Bumps [duckdb](https://github.com/duckdb/duckdb-rs) from 1.4.0 to 1.4.1.
- [Release notes](https://github.com/duckdb/duckdb-rs/releases)
- [Commits](duckdb/duckdb-rs@v1.4.0...v1.4.1)

---
updated-dependencies:
- dependency-name: duckdb
  dependency-version: 1.4.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Bumps [postgres-types](https://github.com/rust-postgres/rust-postgres) from 0.2.10 to 0.2.11.
- [Release notes](https://github.com/rust-postgres/rust-postgres/releases)
- [Commits](rust-postgres/rust-postgres@postgres-types-v0.2.10...postgres-types-v0.2.11)

---
updated-dependencies:
- dependency-name: postgres-types
  dependency-version: 0.2.11
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

* Retain Statement when parsing

When we parse the sql, retain the parsed statement as well as the raw
string and the plan.  This is because we have upcoming cases where we
want to reference the statement without needing to re-parse the query.

* Add extended query support to QueryHook

Add extended query support to QueryHook,.

Also re-use the parsed statement instead of parsing it again because it
is was wasted work, and it also made the code less clean.

(We still potentially handle the params more than once, which can be
fixed later)

Finally, ensure the client is Send + Sync. (Should this be enforced in
pgwire?)

* Add handle_extended_parse_query to QueryHook

Add handle_extended_parse_query to QueryHook so that parse phase
operations can be processed.

* Apply suggestion from @sunng87

---------

Co-authored-by: Ning Sun <classicning@gmail.com>

* feat: make set/show a hook implementation

* feat: implment extended query part

* refactor: avoid duplicate testing code

* chore: resolve lint issue

Bumps [rust_decimal](https://github.com/paupino/rust-decimal) from 1.38.0 to 1.39.0.
- [Release notes](https://github.com/paupino/rust-decimal/releases)
- [Changelog](https://github.com/paupino/rust-decimal/blob/master/CHANGELOG.md)
- [Commits](paupino/rust-decimal@1.38.0...1.39.0)

---
updated-dependencies:
- dependency-name: rust_decimal
  dependency-version: 1.39.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

* Rework SET statement handling

Use proper syntax for set statement timeout statements.

Replace much of the string matching for SET statements with with matching on
proper ast types.

* Fix clippy issues

Rework SHOW handling to use ast values instead of custom string parsing.

Bumps [datafusion](https://github.com/apache/datafusion) from 50.1.0 to 50.2.0.
- [Changelog](https://github.com/apache/datafusion/blob/main/CHANGELOG.md)
- [Commits](apache/datafusion@50.1.0...50.2.0)

---
updated-dependencies:
- dependency-name: datafusion
  dependency-version: 50.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.47.1 to 1.48.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.47.1...tokio-1.48.0)

---
updated-dependencies:
- dependency-name: tokio
  dependency-version: 1.48.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

* chore(deps): bump pgwire from 0.33.0 to 0.34.0

Bumps [pgwire](https://github.com/sunng87/pgwire) from 0.33.0 to 0.34.0.
- [Release notes](https://github.com/sunng87/pgwire/releases)
- [Changelog](https://github.com/sunng87/pgwire/blob/master/CHANGELOG.md)
- [Commits](sunng87/pgwire@v0.33.0...v0.34.0)

---
updated-dependencies:
- dependency-name: pgwire
  dependency-version: 0.34.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* feat: update pgwire to latest release

---------

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