@Knud Larsen建议:

As suggested by @Knud Larsen:

首先，您需要安装libpq-dev.

如果已成功安装，则可以看到文件/usr/include/postgresql/libpq-fe.h

If it was installed successfully, you can see the file /usr/include/postgresql/libpq-fe.h

在那之后执行命令:

sudo luarocks PGSQL_INCDIR=/usr/include/postgresql/ install luasql-postgres