:copyfrom support for asyncpg (#87)

* feat: Add support for `speedups` option for type conversion

Add new boolean option `speedups` to use other libraries for type conversion.
Requires extra dependencies to be installed. Currently affects `sqlite3` & `aiosqlite`.
Uses `ciso8601` library. (feature/asyncpg-copyfrom)

* feat(asyncpg): add support for COPY FROM query

- Added logic to execute COPY FROM query to insert rows into a table with
  name: methodName CmdCopyFrom and return the number of affected rows.
- Updated docstrings to reflect the changes for the new query.
- Added parameters and return type information for the new query.

(issue #feature/asyncpg-copyfrom)

* auto generated code

* docs: Update README.md to indicate asyncpg support for copyfrom (issue #feature/asyncpg-copyfrom)

* tests

* fragment

* ci: Add sqlite3 check workflow using nox (feature/asyncpg-copyfrom)

* fix some mising sqlite3 tests

* readme fix

Author: rayakame

.changes/unreleased/Added-20250521-031652.yaml

@@ -0,0 +1,6 @@
+kind: Added
+body: Added support for `:copyfrom` for driver `asyncpg`
+time: 2025-05-21T03:16:52.3803634+02:00
+custom:
+    Author: rayakame
+    PR: "87"

.coverage

@@ -193,6 +193,26 @@ jobs:
         run: |
           uv run nox -s aiosqlite_check
 
+  sqlite3:
+    runs-on: ubuntu-latest
+    name: "Run sqlite3 check via nox"
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+        with:
+          version: "0.6.9"
+          python-version: "3.13"
+
+      - name: Install sqlc
+        uses: sqlc-dev/setup-sqlc@v4
+        with:
+          sqlc-version: '1.28.0'
+
+      - name: Run sqlc verify via nox
+        run: |
+          uv run nox -s sqlite3_check
+
   test-build:
     runs-on: ubuntu-latest
 
@@ -220,7 +240,7 @@ jobs:
           retention-days: 30
 
   ci-done:
-    needs: [ test,upload-coverage, asyncpg, pyright, ruff, test-build ]
+    needs: [ test,upload-coverage, asyncpg, aiosqlite, sqlite3, ruff, test-build ]
     if: always() && !cancelled()
 
     runs-on: ubuntu-latest

.github/workflows/ci.yml

@@ -52,6 +52,7 @@ More options at the [`sqlc` config reference](https://docs.sqlc.dev/en/stable/re
 | `docstrings`                     | string       | no       | If set, there will be docstrings generated in the selected format. This can be one of `google`, `numpy`, `pep257` and `none`. `none` will not generate any docstrings.                                                    |
 | `docstrings_emit_sql`            | bool         | no       | If set to `false` the SQL code for each query wont be included in the docstrings. This defaults to `true` but is not used when `docstrings` is not set or set to `none`                                                   |
 | `query_parameter_limit`          | integer      | no       | Not yet implemented.                                                                                                                                                                                                      |
+| `speedups`                       | bool         | no       | If set to `true` the plugin will use other librarys for type conversion. Needs extra dependecys to be installed. This option currently only affects `sqlite3` & `aiosqlite` and uses the library `ciso8601`               |
 | `debug`                          | bool         | no       | If set to `true`, there will be debug logs generated into a `log.txt` file when executing `sqlc generate`. Defaults to `false`                                                                                            |
 
 ## Feature Support
@@ -61,14 +62,11 @@ The supported [query commands](https://docs.sqlc.dev/en/latest/reference/query-a
 
 > Prepared Queries are not planned for the near future, but will be implemented sooner or later
 
-> [!NOTE]  
-> Asyncpg only has very bad support until now. It doesn't support `:execresult`, `:execrows` and `:execlastid`
-
 |           | `:exec` | `:execresult` | `:execrows` | `:execlastid` | `:many` | `:one` | `:copyfrom` |
 |-----------|---------|---------------|-------------|---------------|---------|--------|-------------|
 | aiosqlite | yes     | yes           | yes         | yes           | yes     | yes    | no          |
 | sqlite3   | yes     | yes           | yes         | yes           | yes     | yes    | no          |
-| asyncpg   | yes     | no            | no          | no            | yes     | yes    | no          |
+| asyncpg   | yes     | yes           | yes         | no            | yes     | yes    | yes         |
 | psycopg2  | no      | no            | no          | no            | no      | no     | no          |
 | mysql     | no      | no            | no          | no            | no      | no     | no          |