postgresql max integer

Originally wanted to find the PostgreSQL database occupy Space Command found this blog, found that the provision of severalcommand is useful (but there are several senses that are sucks.) =), so he translated it over. In addition this article is 09,

We know that the information in the PostgreSQL database is ultimately written to the persistent device. So how does PostgreSQL store the information organization on disk? Bruce Momjian has a slide "insider PostgreSQL Shared Memory", inside the

In-depth interpretation of sequences in PostgreSQL and their related functions, and interpretation of postgresql I. Introduction A sequence object (also called a SEQUENCE generator) is a special single-row table created using create sequence. A

PostgreSQL tutorial (14): database maintenance, postgresql tutorial I. Disk Space Restoration: In PostgreSQL, the data rows deleted or updated using the delete and update statements are not actually deleted, the physical address of the old data row

First, restore disk space: In PostgreSQL, data rows that are deleted or updated using the Delete and UPDATE statements are not actually deleted, but only the state of the row is deleted or expired on the physical address of the old version of the

I. Disk Space Restoration: In PostgreSQL, the data rows deleted or updated using the delete and update statements are not actually deleted, the physical address of the old data row sets the row status to deleted or expired. Therefore, when data in a

4.2. Value expressionsValue expressions are used in a variety of syntax environments, such as in the target list of the SELECT command, as new column values in INSERT or UPDATE , or in search conditions for many commands. We sometimes call the

I. restore disk space In PostgreSQL, the data rows deleted or updated using the delete and update statements are not actually deleted, the physical address of the old data row sets the row status to deleted or expired. Therefore, when data in a

warehouse_db=# CREATE TABLE item (item_id Integer not null,item_name text,item_price numeric,item_data text);CREATE TABLEwarehouse_db=# CREATE INDEX Item_idx on item (ITEM_ID);CREATE INDEXwarehouse_db=# \di Item_idxList of relationsSchema | Name |

Http://www.mono-project.com/PostgreSQL#Some_Connection_Example Parameter Definition Description Example Server Hostname of the PostgreSQL Server Server = localhost Database Name of the