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在postgresql安装编译pl/ploxy-2.5报错 postgres@node2 plproxy-2.5]$ make flex -osrc/scanner.c src/scanner.l bison -b src/parser -d src/parser.y gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -O2 -fpic -I/home/postgres/pgsql-9.6/include/server -I/home/postgres/pgsql-9.6/include -DNO_SELECT=0 -I. -I./ -I/home/postgres/pgsql-9.6/include/server -I/home/postgres/pgsql-9.6/include/internal -D_GNU_SOURCE -c -o src/scanner.o src/scanner.c gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -O2 -fpic -I/home/postgres/pgsql-9.6/include/server -I/home/postgres/pgsql-9.6/include -DNO_SELECT=0 -I. -I./ -I/home/postgres/pgsql-9.6/include/server -I/home/postgres/pgsql-9.6/include/internal -D_GNU_SOURCE -c -o src/parser.tab.o src/parser.tab.c gcc -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -O2 -fpic -I/home/postgres/pgsql-9.6/include/server -I/home/postgres/pgsql-9.6/include -DNO_SELECT=0 -I. -I./ -I/home/postgres/pgsql-9.6/include/server -I/home/postgres/pgsql-9.6/include/internal -D_GNU_SOURCE -c -o src/cluster.o src/cluster.c src/cluster.c: In function ‘get_version’: src/cluster.c:281: warning: format ‘%d’ expects type ‘int’, but argument 3 has type ‘uint64’ src/cluster.c: In function ‘get_userinfo’: src/cluster.c:940: error: too few arguments to function ‘GetUserNameFromId’ src/cluster.c: In function ‘resolve_query’: src/cluster.c:1117: warning: format ‘%d’ expects type ‘int’, but argument 4 has type ‘uint64’ gmake: *** [src/cluster.o] Error 1本人之前在9.4和9.2上安装过没有出现问题，个人判断是pl/ploxy-2.5不支持pg9.6，需要自己改一下内容，我还没找到方法。pl/ploxy-2.5是2012年的东西了，也许久不更新了。如果想做pl/ploxy-2.5的实验，建议不要用pg9.6了
后经实验，pl/ploxy-2.5在pg9.5上编译的时候也是会出错的，错误和上述差不过。
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