feat: add chdb_arrow_scan, chdb_arrow_array_scan and chdb_arrow_unregister_table C APIs

Author: wudidapaopao

.github/workflows/build_linux_arm64_wheels-gh.yml

@@ -138,6 +138,9 @@ jobs:
       - name: Run libchdb stub in examples dir
         run: |
           bash -x ./examples/runStub.sh
+      - name: Run Arrow functions test in examples dir
+        run: |
+          bash -x ./examples/runArrowTest.sh
       - name: Check ccache statistics
         run: |
           ccache -s

.github/workflows/build_linux_x86_wheels.yml

@@ -138,6 +138,9 @@ jobs:
       - name: Run libchdb stub in examples dir
         run: |
           bash -x ./examples/runStub.sh
+      - name: Run Arrow functions test in examples dir
+        run: |
+          bash -x ./examples/runArrowTest.sh
       - name: Check ccache statistics
         run: |
           ccache -s

.github/workflows/build_macos_arm64_wheels.yml

@@ -141,6 +141,9 @@ jobs:
       - name: Run libchdb stub in examples dir
         run: |
           bash -x ./examples/runStub.sh
+      - name: Run Arrow functions test in examples dir
+        run: |
+          bash -x ./examples/runArrowTest.sh
       - name: Keep killall ccache and wait for ccache to finish
         if: always()
         run: |

.github/workflows/build_macos_x86_wheels.yml

@@ -142,6 +142,9 @@ jobs:
       - name: Run libchdb stub in examples dir
         run: |
           bash -x ./examples/runStub.sh
+      - name: Run Arrow functions test in examples dir
+        run: |
+          bash -x ./examples/runArrowTest.sh
       - name: Keep killall ccache and wait for ccache to finish
         if: always()
         run: |

README.md

@@ -416,11 +416,7 @@ chDB automatically converts Python dictionary objects to ClickHouse JSON types f
       ```
     - Columns are converted to `String` if sampling finds non-dictionary values.
 
-2. **Arrow Table**
-    - `struct` type columns are automatically mapped to JSON columns.
-    - Nested structures preserve type information.
-
-3. **chdb.PyReader**
+2. **chdb.PyReader**
     - Implement custom schema mapping in `get_schema()`:
       ```python
       def get_schema(self):