คุณอาจชื่นชอบ
Postgres TOTD: Use the 'END' as a shortcut for context-sensitive COMMIT or ROLLBACK.
Postgres TOTD: VACUUM FULL and REINDEX do heavy locking, but with autovacuum you should rarely need them.
Postgres TOTD: Logging can go through syslog: control the facility and ident via postgresql.conf.
Postgres TOTD: Postgres 8.4 has a backwards-compatible psql, including backslash commands (finally!)
Postgres TOTD: A table can be physically reordered based on an index with the CLUSTER command. http://tr.im/sI5d
Postgres TOTD: 8.4 has windowing functions: see how they compare to other dbs: http://tr.im/snRO
Postgres TOTD: ANALYZE can be run on the entire database, on a single table, and even on a single column. http://tr.im/sc1L
Postgres TOTD: View PostgreSQL information in a format similar to the Unix tool 'top' with pg_top: http://tr.im/pNXr
Postgres TOTD: Postgres 8.4 gets rid of max_fsm_pages and max_fsm_relations. Two less knobs to worry about!
Postgres TOTD: Postgres natively supports many DTrace probes as of version 8.2. http://tr.im/pvPk
Postgres TOTD: Don't kill -9 backends. Postgres will survive, but other clients may have to reconnect.
Postgres TOTD: LEFT and RIGHT joins are equivalent, so always use LEFT joins to reduce confusion. http://tr.im/oS3I
Postgres TOTD: Subqueries can be used almost everywhere: select (select 1) as c from (select 1) t where 1 = (select 1) limit (select 1);
Postgres TOTD: Make sure you run a global ANALYZE after restoring a database or any other large data import.
Postgres TOTD: When working on someone else's system, call psql with -X to bypass any unknown conf files.
Postgres TOTD: In psql, see how fast all your queries take by toggling \timing on.
Postgres TOTD: Temporary tables can be set as ON COMMIT DELETE to automatically remove them. http://tr.im/nXRC
Postgres TOTD: Starting in PostgreSQL version 8.4, you can use ON TRUNCATE triggers. http://tr.im/nQ7I
Postgres TOTD: One of the many languages available for PostgreSQL functions is LOLCODE. http://tr.im/nAjS (YA RLY!)
Postgres TOTD: When writing functions, put the LANGUAGE declaration with the rest of the metadata at the top.
United States เทรนด์
- 1. Ty Simpson 3,220 posts
- 2. Texas Tech 27.9K posts
- 3. Messi 249K posts
- 4. Georgia 46.8K posts
- 5. #SECChampionship 2,723 posts
- 6. Inter Miami 83.2K posts
- 7. Ryan Williams 1,477 posts
- 8. Harry Ford 1,866 posts
- 9. Dawgs 9,427 posts
- 10. MLS Cup 78.2K posts
- 11. Slot 134K posts
- 12. Mariners 4,043 posts
- 13. Grubb 1,153 posts
- 14. Ferrer 3,796 posts
- 15. Big 12 3,153 posts
- 16. Kirby 12.9K posts
- 17. Busquets 21.5K posts
- 18. Gunner 6,362 posts
- 19. #RollTide 2,192 posts
- 20. Polar 16K posts
Something went wrong.
Something went wrong.