postgresql+postgis空间数据库安装总结

参考资料

postgresql+postgis安装步骤图解

http://blog.csdn.net/u010166404/article/details/51119587

PHP连接postgresql

https://www.cnblogs.com/FlyFive/archive/2013/03/11/2954686.html

pgsql安装步骤：

pgsql安装包直接安装即可（安装完成后自动提醒postgis），安装过程的设置可以按照上面的网址进行

注意事项：

1.安装过程中注意修改安装文件位置（方便之后更改配置）

2.安装后登录名默认是：postgres（密码在安装过程中自己设置）

pgsql配置：

1.设置其他人访问服务器pgsql

安装PostgreSQL数据库之后，默认是只接受本地访问连接，如果想在其他主机上访问PostgreSQL数据库服务器：

第一步：修改pgsql文件夹下的data里面的pg_hba.conf：

# IPv4 local connections:

host all all 0.0.0.0/0 md5

# IPv6 local connections:

#host all all 127.0.0.1/32 md5

host all all ::1/128 trust

# Allow replication connections from localhost, by a user with the

# replication privilege.

#host replication postgres 127.0.0.1/32 md5

#host replication postgres ::1/128 md5

第二步：修改pgsql文件夹下的data里面的postgresql.conf：

把#listen_addresses=’localhost’更改为listen_addresses=’*’

第三步：修改防火墙配置，开启5432端口：https://jingyan.baidu.com/article/f96699bbadafca894f3c1b7a.html

如果以上步骤修改后不行，去看下面的网址：

http://blog.csdn.net/zhu_xun/article/details/21234663

2.postgresql的sql管理器执行 如下代码：（为postgresql添加 函数 table_msg，不然无法执行sql语句或者报错）

这条是针对php的

CREATE OR REPLACE FUNCTION pgsql_type(a_type varchar) RETURNS varchar AS

$BODY$

DECLARE

v_type varchar;

BEGIN

IF a_type='int8' THEN

v_type:='bigint';

ELSIF a_type='int4' THEN

v_type:='integer';

ELSIF a_type='int2' THEN

v_type:='smallint';

ELSIF a_type='bpchar' THEN

v_type:='char';

ELSE

v_type:=a_type;

END IF;

RETURN v_type;

END;

$BODY$

LANGUAGE PLPGSQL;

CREATE TYPE "public"."tablestruct" AS (

"fields_key_name" varchar(100),

"fields_name" VARCHAR(200),

"fields_type" VARCHAR(20),

"fields_length" BIGINT,

"fields_not_null" VARCHAR(10),

"fields_default" VARCHAR(500),

"fields_comment" VARCHAR(1000)

);

CREATE OR REPLACE FUNCTION "public"."table_msg" (a_schema_name varchar, a_table_name varchar) RETURNS SETOF "public"."tablestruct" AS

$body$

DECLARE

v_ret tablestruct;

v_oid oid;

v_sql varchar;

v_rec RECORD;

v_key varchar;

BEGIN

SELECT

pg_class.oid INTO v_oid

FROM

pg_class

INNER JOIN pg_namespace ON (pg_class.relnamespace = pg_namespace.oid AND lower(pg_namespace.nspname) = a_schema_name)

WHERE

pg_class.relname=a_table_name;

IF NOT FOUND THEN

RETURN;

END IF;

v_sql='

SELECT

pg_attribute.attname AS fields_name,

pg_attribute.attnum AS fields_index,

pgsql_type(pg_type.typname::varchar) AS fields_type,

pg_attribute.atttypmod-4 as fields_length,

CASE WHEN pg_attribute.attnotnull THEN ''not null''

ELSE ''''

END AS fields_not_null,

pg_attrdef.adsrc AS fields_default,

pg_description.description AS fields_comment

FROM

pg_attribute

INNER JOIN pg_class ON pg_attribute.attrelid = pg_class.oid

INNER JOIN pg_type ON pg_attribute.atttypid = pg_type.oid

LEFT OUTER JOIN pg_attrdef ON pg_attrdef.adrelid = pg_class.oid AND pg_attrdef.adnum = pg_attribute.attnum

LEFT OUTER JOIN pg_description ON pg_description.objoid = pg_class.oid AND pg_description.objsubid = pg_attribute.attnum

WHERE

pg_attribute.attnum > 0

AND attisdropped <> ''t''

AND pg_class.oid = ' || v_oid || '

ORDER BY pg_attribute.attnum' ;

FOR v_rec IN EXECUTE v_sql LOOP

v_ret.fields_name=v_rec.fields_name;

v_ret.fields_type=v_rec.fields_type;

IF v_rec.fields_length > 0 THEN

v_ret.fields_length:=v_rec.fields_length;

ELSE

v_ret.fields_length:=NULL;

END IF;

v_ret.fields_not_null=v_rec.fields_not_null;

v_ret.fields_default=v_rec.fields_default;

v_ret.fields_comment=v_rec.fields_comment;

SELECT constraint_name INTO v_key FROM information_schema.key_column_usage WHERE table_schema=a_schema_name AND table_name=a_table_name AND column_name=v_rec.fields_name;

IF FOUND THEN

v_ret.fields_key_name=v_key;

ELSE

v_ret.fields_key_name='';

END IF;

RETURN NEXT v_ret;

END LOOP;

RETURN ;

END;

$body$

LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;

COMMENT ON FUNCTION "public"."table_msg"(a_schema_name varchar, a_table_name varchar)

IS '获得表信息';

---重载一个函数

CREATE OR REPLACE FUNCTION "public"."table_msg" (a_table_name varchar) RETURNS SETOF "public"."tablestruct" AS

$body$

DECLARE

v_ret tablestruct;

BEGIN

FOR v_ret IN SELECT * FROM table_msg('public',a_table_name) LOOP

RETURN NEXT v_ret;

END LOOP;

RETURN;

END;

$body$

LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER;

COMMENT ON FUNCTION "public"."table_msg"(a_table_name varchar)

IS '获得表信息';

注意：如果使用的是tp框架需要修改 ThinkPHP\Library\Think\Db\Driver\Pgsql.class.PHP 里的 getFields() 方法，通过转义符把单引号添加

修改为：

$result = $this->query('select fields_name as "field",fields_type as "type",fields_not_null as "null",fields_key_name as "key",fields_default as "default",fields_default as "extra" from table_msg(\''.$tableName.'\');');

3.如果当前使用的数据库是PostgreSQL 9.1+，那就无需使用template_postgis之类的模版数据库来创建空间数据库

使用一条扩展命令SQL即可令数据库支持，在pgAdmin中打开SQL视图，输入并执行：

CREATE EXTENSION postgis;

执行成功后就开启了pgsql对空间字段的支持