orafce官网

http://pgxn.org/dist/orafce/
https://github.com/orafce/orafce

PostgreSQL11或12安装orafce

PG11及以后版本引入JIT的支持。
PG11及以后版本EDB不提供安装包，yum安装后可能缺clang
需要安装postgresql${version}-devel

修改pgxs.mk

以pg12为例，注释llvm相关

vi /usr/pgsql-12/lib/pgxs/src/makefiles/pgxs.mk

#ifeq ($(with_llvm), yes)
#all: $(addsuffix .bc, $(MODULES)) $(patsubst %.o,%.bc, $(OBJS))
#endif 
#ifeq ($(with_llvm), yes)
#       $(foreach mod, $(MODULES), $(call install_llvm_module,$(mod),$(mod).bc))
#endif # with_llvm
#ifeq ($(with_llvm), yes)
#       $(call install_llvm_module,$(MODULE_big),$(OBJS))
#endif # with_llvm
#ifeq ($(with_llvm), yes)
#       $(foreach mod, $(MODULES), $(call uninstall_llvm_module,$(mod)))
#endif # with_llvm 
#ifeq ($(with_llvm), yes)
#       $(call uninstall_llvm_module,$(MODULE_big))
#endif # with_llvm
复制

PostgreSQL10及以下安装版直接编译即可