niyue commented on code in PR #38116:
URL: https://github.com/apache/arrow/pull/38116#discussion_r1367827763
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cpp/src/gandiva/function_registry.cc:
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@@ -16,18 +16,23 @@
// under the License.
#include "gandiva/function_registry.h"
+
+#include <iterator>
+#include <utility>
+#include <vector>
+
+#include "arrow/util/logging.h"
#include "gandiva/function_registry_arithmetic.h"
#include "gandiva/function_registry_datetime.h"
#include "gandiva/function_registry_hash.h"
#include "gandiva/function_registry_math_ops.h"
#include "gandiva/function_registry_string.h"
#include "gandiva/function_registry_timestamp_arithmetic.h"
-#include <iterator>
-#include <utility>
-#include <vector>
-
namespace gandiva {
+constexpr uint32_t kMaxFunctionSignatures = 2048;
+
+FunctionRegistry::FunctionRegistry() {
pc_registry_.reserve(kMaxFunctionSignatures); }
FunctionRegistry::iterator FunctionRegistry::begin() const {
Review Comment:
> How about making the existing API deprecated, keeping backward
compatibility and creating a new API for now?
That makes sense, I will give it a try. Thanks.
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