postgresql+postgis空間資料庫安裝總結
阿新 • • 發佈:2019-02-15
參考資料
postgresql+postgis安裝步驟圖解
PHP連線postgresql
pgsql安裝步驟:
pgsql安裝包直接安裝即可(安裝完成後自動提醒postgis),安裝過程的設定可以按照上面的網址進行
注意事項:
1.安裝過程中注意修改安裝檔案位置(方便之後更改配置)
2.安裝後登入名預設是:postgres(密碼在安裝過程中自己設定)
pgsql配置:
1.設定其他人訪問伺服器pgsql
安裝PostgreSQL資料庫之後,預設是隻接受本地訪問連線,如果想在其他主機上訪問PostgreSQL資料庫伺服器:
第一步:修改pgsql資料夾下的data裡面的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資料夾下的data裡面的postgresql.conf:
把#listen_addresses=’localhost’更改為listen_addresses=’*’
第三步:修改防火牆配置,開啟5432埠:https://jingyan.baidu.com/article/f96699bbadafca894f3c1b7a.html
如果以上步驟修改後不行,去看下面的網址:
2.postgresql的sql管理器執行 如下程式碼:(為postgresql新增 函式 table_msg,不然無法執行sql語句或者報錯)
這條是針對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 '獲得表資訊';
---過載一個函式
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 '獲得表資訊';
注意:如果使用的是tp框架需要修改 ThinkPHP\Library\Think\Db\Driver\Pgsql.class.PHP 裡的 getFields() 方法,通過轉義符把單引號新增
修改為:
$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.如果當前使用的資料庫是PostgreSQL 9.1+,那就無需使用template_postgis之類的模版資料庫來建立空間資料庫
使用一條擴充套件命令SQL即可令資料庫支援,在pgAdmin中開啟SQL檢視,輸入並執行:
CREATE EXTENSION postgis;
執行成功後就開啟了pgsql對空間欄位的支援