dbconn: Fix FunctionHandle warning for pg12

Also add .idea to .gitignore
diff --git a/.gitignore b/.gitignore
index d8adb2a..ad9a296 100644
--- a/.gitignore
+++ b/.gitignore
@@ -47,3 +47,4 @@
 eproject.cfg
 *.project.vim
 .vscode
+.idea
diff --git a/src/ports/postgres/dbconnector/FunctionHandle_impl.hpp b/src/ports/postgres/dbconnector/FunctionHandle_impl.hpp
index 5587b25..c5e0863 100644
--- a/src/ports/postgres/dbconnector/FunctionHandle_impl.hpp
+++ b/src/ports/postgres/dbconnector/FunctionHandle_impl.hpp
@@ -159,7 +159,7 @@
         funcPtrCallInfo.args[i].value = args[i].getAsDatum(&funcPtrCallInfo,
             mFuncInfo->getArgumentType(i));
         funcPtrCallInfo.args[i].isnull = args[i].isNull();
-        elog(WARNING, "funcPtrCallInfo.args[i].value %d funcPtrCallInfo.args[i].isnull %d", funcPtrCallInfo.args[i].value, funcPtrCallInfo.args[i].isnull);
+        elog(WARNING, "funcPtrCallInfo.args[i].value %lu funcPtrCallInfo.args[i].isnull %d", funcPtrCallInfo.args[i].value, funcPtrCallInfo.args[i].isnull);
     }
 #else
     for (uint16_t i = 0; i < funcPtrCallInfo.nargs; ++i) {