关于lua：PostgreSQL和pllua


PostgreSQL and pllua

我正在尝试构建pllua模块，但是遇到了一些麻烦。

我认为问题出在错误的PostgreSQL版本上，但是我不确定，如果有人可以帮助我，我将不胜感激。

Postgres位置：/opt/PostgreSQL/9.3/bin(是不支持EnterEnterb版本)

Lua位置：/ opt / myLua(使用luaDist构建)

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root@lua:/opt/BootstrapLuaDist/LuaDist/bin# ./luadist /opt/myLua/ list

Installed modules:
==================

  bit32-5.2.0   (Ubuntu-x86_64)  [provided BY luajit-2.0.3]
  lua-5.1.5 (Ubuntu-x86_64)  [provided BY luajit-2.0.3]
  luaffi-1.0    (Ubuntu-x86_64)  [provided BY luajit-2.0.3]
  luafilesystem-1.6.2   (Ubuntu-x86_64)
  luajit-2.0.3  (Ubuntu-x86_64)
  luasocket-3.0-rc1 (Ubuntu-x86_64)
  srlua-5.1 (Ubuntu-x86_64)
  zlib-1.2.6    (Ubuntu-x86_64)

我已经修改了pllua makefile：

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# Makefile FOR PL/Lua
# $Id: Makefile,v 1.12 2009/09/20 14:20:48 carvalho EXP $

# Lua specific

# General
#LUAINC = -I/usr/LOCAL/include
#LUALIB = -L/usr/LOCAL/lib -llua

# LuaJIT
#LUAINC = -I/usr/LOCAL/include/luajit-2.0
#LUALIB = -L/usr/LOCAL/lib -lluajit-5.1

#myLuaJit 2.0.3
LUAINC= -I/opt/myLua/include
LUALIB = -L/op/myLua/lib -lliblua


# Debian/Ubuntu
#LUAINC = -I/usr/include/lua5.1
#LUALIB = -llua5.1

# Fink
#LUAINC = -I/sw/include -I/sw/include/postgresql
#LUALIB = -L/sw/lib -llua

# Lua FOR Windows
#LUAINC = -IC:/PROGRA~1/Lua/5.1/include
#LUALIB = -LC:/PROGRA~1/Lua/5.1/lib -llua5.1


# no need TO edit below here
MODULE_big = pllua
EXTENSION = pllua
DATA = pllua--1.0.sql
#DATA_built = pllua.sql

REGRESS = plluatest
OBJS = pllua.o plluaapi.o plluaspi.o
PG_CPPFLAGS = $(LUAINC)
SHLIB_LINK = $(LUALIB)

#PG_CONFIG = /usr/LOCAL/pgsql/bin/pg_config
PG_CONFIG = /opt/PostgreSQL/9.3/bin/pg_config
#PG_CONFIG = pg_config
PGXS := $(shell $(PG_CONFIG) --pgxs)
include $(PGXS)

但是编译出现错误和警告：

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root@lua:/opt/pllua-1.0# make
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fpic -I/opt/myLua/include -I. -I. -I/opt/PostgreSQL/9.3/include/postgresql/server -I/opt/PostgreSQL/9.3/include/postgresql/internal -D_GNU_SOURCE -I/opt/LOCAL/20140108/fc7f8f12-7861-11e3-aaff-000c29d23b02/include/libxml2  -I/usr/LOCAL/include/libxml2 -I/usr/LOCAL/include  -c -o pllua.o pllua.c
gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fpic -I/opt/myLua/include -I. -I. -I/opt/PostgreSQL/9.3/include/postgresql/server -I/opt/PostgreSQL/9.3/include/postgresql/internal -D_GNU_SOURCE -I/opt/LOCAL/20140108/fc7f8f12-7861-11e3-aaff-000c29d23b02/include/libxml2  -I/usr/LOCAL/include/libxml2 -I/usr/LOCAL/include  -c -o plluaapi.o plluaapi.c
IN file included FROM plluaapi.c:8:0:
rowstamp.h: IN FUNCTION a€?rowstamp_seta€?:
rowstamp.h:26:2: warning: implicit declaration OF FUNCTION a€?HeapTupleHeaderGetXmina€? [-Wimplicit-function-declaration]
  stamp->xmin = HeapTupleHeaderGetXmin(tup->t_data);
  ^
plluaapi.c: At top level:
plluaapi.c:41:3: error: UNKNOWN TYPE name a€?int2a€?
   int2 len;
   ^
plluaapi.c: IN FUNCTION a€?luaP_gettypeinfoa€?:
plluaapi.c:149:5: warning: implicit declaration OF FUNCTION a€?GETSTRUCTa€? [-Wimplicit-function-declaration]
     typeinfo = (Form_pg_type) GETSTRUCT(TYPE);
     ^
plluaapi.c:149:16: warning: CAST TO pointer FROM INTEGER OF different SIZE [-Wint-to-pointer-CAST]
     typeinfo = (Form_pg_type) GETSTRUCT(TYPE);
                ^
plluaapi.c: IN FUNCTION a€?luaP_modinita€?:
plluaapi.c:350:11: warning: implicit declaration OF FUNCTION a€?heap_getattra€? [-Wimplicit-function-declaration]
           lua_pushstring(L, text2string(heap_getattr(SPI_tuptable->vals[i],
           ^
plluaapi.c: IN FUNCTION a€?luaP_newfunctiona€?:
plluaapi.c:637:12: warning: CAST TO pointer FROM INTEGER OF different SIZE [-Wint-to-pointer-CAST]
   procst = (Form_pg_proc) GETSTRUCT(proc);
            ^
plluaapi.c: IN FUNCTION a€?luaP_pusharraya€?:
plluaapi.c:753:9: warning: implicit declaration OF FUNCTION a€?fetch_atta€? [-Wimplicit-function-declaration]
         luaP_pushdatum(L, fetch_att(*p, ti->byval, ti->len), typeelem);
         ^
plluaapi.c:755:9: warning: implicit declaration OF FUNCTION a€?att_addlength_pointera€? [-Wimplicit-function-declaration]
         *p = att_addlength_pointer(*p, ti->len, *p);
         ^
plluaapi.c:755:12: warning: assignment makes pointer FROM INTEGER WITHOUT a CAST [enabled BY DEFAULT]
         *p = att_addlength_pointer(*p, ti->len, *p);
            ^
plluaapi.c:756:9: warning: implicit declaration OF FUNCTION a€?att_align_nominala€? [-Wimplicit-function-declaration]
         *p = (CHAR *) att_align_nominal(*p, ti->align);
         ^
plluaapi.c:756:14: warning: CAST TO pointer FROM INTEGER OF different SIZE [-Wint-to-pointer-CAST]
         *p = (CHAR *) att_align_nominal(*p, ti->align);
              ^
plluaapi.c: IN FUNCTION a€?luaP_toarraya€?:
plluaapi.c:954:13: warning: implicit declaration OF FUNCTION a€?store_att_byvala€? [-Wimplicit-function-declaration]
             store_att_byval(*p, PointerGetDatum(v), ti->len);
             ^
plluaapi.c: IN FUNCTION a€?luaP_todatuma€?:
plluaapi.c:1047:15: warning: implicit declaration OF FUNCTION a€?heap_form_tuplea€? [-Wimplicit-function-declaration]
               dat = PointerGetDatum(SPI_returntuple(heap_form_tuple(ti->tupdesc,
               ^
plluaapi.c:1047:15: warning: passing argument 1 OF a€?SPI_returntuplea€? makes pointer FROM INTEGER WITHOUT a CAST [enabled BY DEFAULT]
IN file included FROM pllua.h:18:0,
                 FROM plluaapi.c:7:
/opt/PostgreSQL/9.3/include/postgresql/server/executor/spi.h:113:24: note: expected a€?HeapTuplea€? but argument IS OF TYPE a€?inta€?
 extern HeapTupleHeader SPI_returntuple(HeapTuple tuple, TupleDesc tupdesc);
                        ^
make: *** [plluaapi.o] Error 1

非常感谢

###-更新----

我已修复(仅部分解决)该问题。从enterpriceb下载了postgreSQL 9.2，现在可以正常编译了，在/opt/PostgreSQL/9.2/lib/postgresql中安装了pllua.so。

当我运行时：root @ lua：/opt/PostgreSQL/9.2/bin# ./psql -U postgres -p 5435 -c" CREATE EXTENSION pllua" postgres

它会引发错误：

错误：无法加载库" /opt/PostgreSQL/9.2/lib/postgresql/pllua.so"：/opt/PostgreSQL/9.2/lib/postgresql/pllua.so：未定义符号：luaopen_math

现在luaopen_math有什么问题？可能需要在编译之前加载一些luaJit库吗？

已解决！

首先建议(感谢Craig Ringer)，我从PostgreSQL 9.3迁移到PostgreSQL 9.2

其次，在/opt/pllua-1.0中键入make时，编译阶段可以，但是链接器阶段存在一些问题。

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gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -Wmissing-format-attribute -Wformat-security -fno-strict-aliasing -fwrapv -fpic -shared -o pllua.so pllua.o plluaapi.o plluaspi.o -L/opt/PostgreSQL/9.2/lib -L/opt/LOCAL/20140108/fc7f8f12-7861-11e3-aaff-000c29d23b02/lib  -L/usr/LOCAL/lib -Wl,--as-needed -Wl,-rpath,'/opt/PostgreSQL/9.2/lib',--enable-new-dtags  -L/opt/myLua/lib -llua

链接器无法识别/ opt / myLua / lib中的共享库liblua.so，就像选项-L / opt / myLua / lib -llua不起作用(可能是Makefile问题)<铅>

所以我将liblua.so移到了/ usr / local / lib中，已执行ldconfig，现在可以了：

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root@lua:/opt/PostgreSQL/9.2/lib/postgresql# ldd -v pllua.so
    linux-vdso.so.1 =>  (0x00007fff3eddb000)
    liblua.so => /usr/LOCAL/lib/liblua.so (0x00007f2884eb1000)
    libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2884aeb000)
    libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f28847e4000)
    libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f28845e0000)
    libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f28843ca000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f2885337000)

    Version information:
    ./pllua.so:
        libc.so.6 (GLIBC_2.14) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.4) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6
    /usr/LOCAL/lib/liblua.so:
        libdl.so.2 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libdl.so.2
        ld-linux-x86-64.so.2 (GLIBC_2.3) => /lib64/ld-linux-x86-64.so.2
        libgcc_s.so.1 (GCC_3.3) => /lib/x86_64-linux-gnu/libgcc_s.so.1
        libgcc_s.so.1 (GCC_3.0) => /lib/x86_64-linux-gnu/libgcc_s.so.1
        libm.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libm.so.6
        libc.so.6 (GLIBC_2.3.4) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.14) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.4) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.7) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6
    /lib/x86_64-linux-gnu/libc.so.6:
        ld-linux-x86-64.so.2 (GLIBC_2.3) => /lib64/ld-linux-x86-64.so.2
        ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2
    /lib/x86_64-linux-gnu/libm.so.6:
        libc.so.6 (GLIBC_PRIVATE) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6
    /lib/x86_64-linux-gnu/libdl.so.2:
        ld-linux-x86-64.so.2 (GLIBC_PRIVATE) => /lib64/ld-linux-x86-64.so.2
        libc.so.6 (GLIBC_PRIVATE) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6
    /lib/x86_64-linux-gnu/libgcc_s.so.1:
        libc.so.6 (GLIBC_2.14) => /lib/x86_64-linux-gnu/libc.so.6
        libc.so.6 (GLIBC_2.2.5) => /lib/x86_64-linux-gnu/libc.so.6

现在您如何看到pllua与严格的liblua.so相关联：
liblua.so => /usr/local/lib/liblua.so(0x00007f2884eb1000)

此后，我使用PgAdminIII加载了模块并测试了http://pllua.projects.pgfoundry.org/

中的示例

此错误：

rowstamp.h:26:2: warning: implicit declaration of function a€?HeapTupleHeaderGetXmina€? [-Wimplicit-function-declaration]

强烈建议您使用的是不同于您尝试编译的PL / Lua源的PostgreSQL版本。也许扩展名未保留，是针对旧PostgreSQL版本的？还是您正在尝试针对9.3编译PostgreSQL 9.4的版本？

更新：

根据git blame src/include/access/htup_details.h和git log -SHeapTupleHeaderGetXmin在提交37484ad2aacef5ec794f4dd3d5cf814475180a78中引入了

HeapTupleHeaderGetXmin。该提交首先出现在历史记录的master分支中-在REL9_3_STABLE中不存在。因此，是的，您要编译的PL / Lua似乎是最新的未发布PostgreSQL的版本。

您应该能够下载9.3的PL / Lua，并进行编译而不会出现问题。

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