PostgreSQL 8.1 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interactively enter, edit, and execute SQL commands. 1. As an explanation for why this works: PostgreSQL user names are separate Definition • Bulk deletes may be accomplished by simply removing one of the partitions, if that requirement is planned into the partitioning design. DROP TABLE is far faster than a bulk DELETE, to say ’Cheese’, DEFAULT); INSERT INTO products DEFAULT VALUES; 70 Chapter 6. Data Manipulation Tip: To do “bulk loads”, that is, inserting a lot of data, take a look at the COPY command. It is not as flexible as0 码力 | 1548 页 | 11.54 MB | 1 年前3
PostgreSQL 8.1.11 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interactively enter, edit, and execute SQL commands. 1. As an explanation for why this works: PostgreSQL user names are separate Definition • Bulk deletes may be accomplished by simply removing one of the partitions, if that requirement is planned into the partitioning design. DROP TABLE is far faster than a bulk DELETE, to say ’Cheese’, DEFAULT); INSERT INTO products DEFAULT VALUES; 70 Chapter 6. Data Manipulation Tip: To do “bulk loads”, that is, inserting a lot of data, take a look at the COPY command. It is not as flexible as0 码力 | 1582 页 | 12.19 MB | 1 年前3
PostgreSQL 8.2 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interactively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like PgAccess or an office whole table. • Bulk loads and deletes may be accomplished by adding or removing partitions, if that requirement is planned into the partitioning design. ALTER TABLE is far faster than a bulk operation. It It also entirely avoids the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and slower storage media. The benefits will normally be worthwhile only when a table0 码力 | 1762 页 | 5.43 MB | 1 年前3
PostgreSQL 8.2 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interactively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like PgAccess or an office whole table. • Bulk loads and deletes may be accomplished by adding or removing partitions, if that requirement is planned into the partitioning design. ALTER TABLE is far faster than a bulk operation. It It also entirely avoids the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and slower storage media. The benefits will normally be worthwhile only when a table0 码力 | 1748 页 | 13.12 MB | 1 年前3
PostgreSQL 8.4 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interac- tively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like pgAdmin or an office whole table. • Bulk loads and deletes can be accomplished by adding or removing partitions, if that requirement is planned into the partitioning design. ALTER TABLE is far faster than a bulk operation. It It also entirely avoids the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and slower storage media. The benefits will normally be worthwhile only when a table0 码力 | 2224 页 | 5.05 MB | 1 年前3
PostgreSQL 8.4 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interactively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like pgAdmin or an office whole table. • Bulk loads and deletes can be accomplished by adding or removing partitions, if that requirement is planned into the partitioning design. ALTER TABLE is far faster than a bulk operation. It It also entirely avoids the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and slower storage media. The benefits will normally be worthwhile only when a table0 码力 | 2371 页 | 5.09 MB | 1 年前3
PostgreSQL 8.3 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interactively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like pgAdmin or an office whole table. • Bulk loads and deletes can be accomplished by adding or removing partitions, if that requirement is planned into the partitioning design. ALTER TABLE is far faster than a bulk operation. It It also entirely avoids the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and slower storage media. The benefits will normally be worthwhile only when a table0 码力 | 2143 页 | 4.58 MB | 1 年前3
PostgreSQL 8.3 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interac- tively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like pgAdmin or an office whole table. • Bulk loads and deletes can be accomplished by adding or removing partitions, if that requirement is planned into the partitioning design. ALTER TABLE is far faster than a bulk operation. It It also entirely avoids the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and slower storage media. The benefits will normally be worthwhile only when a table0 码力 | 2015 页 | 4.54 MB | 1 年前3
PostgreSQL 9.0 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interactively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like pgAdmin or an office that partition instead of using an index and random access reads scattered across the whole table. • Bulk loads and deletes can be accomplished by adding or removing partitions, if that requirement is planned TABLE NO INHERIT and DROP TABLE are both far faster than a bulk operation. These commands also entirely avoid the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and0 码力 | 2561 页 | 5.55 MB | 1 年前3
PostgreSQL 9.0 Documentationthe PostgreSQL interactive terminal program, called psql, which allows you to interac- tively enter, edit, and execute SQL commands. • Using an existing graphical frontend tool like pgAdmin or an office that partition instead of using an index and random access reads scattered across the whole table. • Bulk loads and deletes can be accomplished by adding or removing partitions, if that requirement is planned TABLE NO INHERIT and DROP TABLE are both far faster than a bulk operation. These commands also entirely avoid the VACUUM overhead caused by a bulk DELETE. • Seldom-used data can be migrated to cheaper and0 码力 | 2401 页 | 5.50 MB | 1 年前3
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