ext/duckdb/connection.c in duckdb-0.0.5 vs ext/duckdb/connection.c in duckdb-0.0.6

@@ -1,9 +1,7 @@
 #include "ruby-duckdb.h"
 
-static VALUE cDuckDBConnection;
-
 static void deallocate(void *ctx)
 {
     rubyDuckDBConnection *p = (rubyDuckDBConnection *)ctx;
 
     duckdb_disconnect(&(p->con));
@@ -14,11 +12,12 @@
 {
     rubyDuckDBConnection *ctx = xcalloc((size_t)1, sizeof(rubyDuckDBConnection));
     return Data_Wrap_Struct(klass, NULL, deallocate, ctx);
 }
 
-VALUE create_connection(VALUE oDuckDBDatabase) {
+VALUE create_connection(VALUE oDuckDBDatabase)
+{
     rubyDuckDB *ctxdb;
     rubyDuckDBConnection *ctxcon;
     VALUE obj;
 
     Data_Get_Struct(oDuckDBDatabase, rubyDuckDB, ctxdb);
@@ -32,12 +31,12 @@
 
     // rb_ivar_set(obj, rb_intern("database"), oDuckDBDatabase);
     return obj;
 }
 
-static VALUE duckdb_connection_query(VALUE self, VALUE str) {
-
+static VALUE duckdb_connection_query_sql(VALUE self, VALUE str)
+{
     rubyDuckDBConnection *ctx;
     rubyDuckDBResult *ctxr;
 
     VALUE result = create_result();
 
@@ -53,7 +52,7 @@
 void init_duckdb_connection(void)
 {
     cDuckDBConnection = rb_define_class_under(mDuckDB, "Connection", rb_cObject);
     rb_define_alloc_func(cDuckDBConnection, allocate);
 
-    rb_define_method(cDuckDBConnection, "query", duckdb_connection_query, 1);
+    rb_define_private_method(cDuckDBConnection, "query_sql", duckdb_connection_query_sql, 1);
 }