pg_client: a libpq-based postgres extension

.github/workflows/ci.yml

@@ -18,7 +18,9 @@ concurrency:
   cancel-in-progress: true
 
 env:
-  EXTENSION_LIST: adbc;azure;delta;duckdb;fts;httpfs;iceberg;json;llm;neo4j;postgres;sqlite;unity_catalog;vector;algo
+  # pg_client requires libpq (PostgreSQL) at build time and a running
+  # PostgreSQL instance at test time (provided by run_pgembed_fixture.py).
+  EXTENSION_LIST: adbc;azure;delta;duckdb;fts;httpfs;iceberg;json;llm;neo4j;pg_client;postgres;sqlite;unity_catalog;vector;algo
 
 jobs:
   # ─────────────────────────────────────────────────────────────────
@@ -206,7 +208,8 @@ jobs:
           dnf install -y 'dnf-command(config-manager)'
           dnf config-manager --set-enabled powertools
           dnf install -y cmake ninja-build python3 python3-pip git wget unzip \
-            gcc-toolset-13 openssl3 openssl3-devel pkg-config
+            gcc-toolset-13 openssl3 openssl3-devel pkg-config \
+            libpq libpq-devel
 
       - name: Install uv
         working-directory: ladybug

CMakeLists.txt

@@ -93,3 +93,4 @@ add_extension_if_enabled("llm")
 add_extension_if_enabled("httpfs")
 add_extension_if_enabled("neo4j")
 add_extension_if_enabled("algo")
+add_extension_if_enabled("pg_client")

extension_config.cmake

@@ -1,4 +1,4 @@
-set(EXTENSION_LIST adbc azure delta duckdb fts httpfs iceberg json llm postgres sqlite unity_catalog vector neo4j algo)
+set(EXTENSION_LIST adbc azure delta duckdb fts httpfs iceberg json llm pg_client postgres sqlite unity_catalog vector neo4j algo)
 
 #set(EXTENSION_STATIC_LINK_LIST fts)
 foreach(extension IN LISTS EXTENSION_STATIC_LINK_LIST)

pg_client/.gitignore

@@ -0,0 +1 @@
+build/

pg_client/CMakeLists.txt

@@ -0,0 +1,19 @@
+find_package(PostgreSQL REQUIRED)
+
+include_directories(
+    ${PROJECT_SOURCE_DIR}/src/include
+    ${CMAKE_BINARY_DIR}/src/include
+    src/include
+    ${PostgreSQL_INCLUDE_DIRS})
+
+add_subdirectory(src/connector)
+add_subdirectory(src/storage)
+add_subdirectory(src/main)
+add_subdirectory(src/catalog)
+add_subdirectory(src/function)
+
+build_extension_lib(${BUILD_STATIC_EXTENSION} "pg_client")
+
+target_link_libraries(lbug_${EXTENSION_LIB_NAME}_extension
+    PRIVATE
+    ${PostgreSQL_LIBRARIES})

pg_client/src/catalog/CMakeLists.txt

@@ -0,0 +1,9 @@
+add_library(lbug_pg_client_catalog
+        OBJECT
+        pg_client_catalog.cpp
+        pg_client_table_catalog_entry.cpp)
+add_dependencies(lbug_pg_client_catalog lbug_common lbug_catalog)
+
+set(PG_CLIENT_EXTENSION_OBJECT_FILES
+        ${PG_CLIENT_EXTENSION_OBJECT_FILES} $<TARGET_OBJECTS:lbug_pg_client_catalog>
+        PARENT_SCOPE)