podoc:album_content_sql_table
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podoc:album_content_sql_table [2007/04/12 12:30] – Luud | podoc:album_content_sql_table [2007/10/19 20:55] (current) – Luud | ||
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- | ===== Database Table Description ===== | + | ===== Database Table Description |
=== Name === | === Name === | ||
+ | |||
+ | album_content | ||
=== Description === | === Description === | ||
+ | |||
+ | This table keeps track of what photos are in which albums. | ||
=== Purpose === | === Purpose === | ||
+ | |||
+ | Unlike folders, it's possible for a photo to be in more than one album. | ||
=== Schema === | === Schema === | ||
+ | |||
+ | <code sql> | ||
+ | create table album_content ( | ||
+ | identifier | ||
+ | photo | ||
+ | album | ||
+ | version | ||
+ | date_changed | ||
+ | ); | ||
+ | </ | ||
+ | |||
+ | === References tables === | ||
+ | |||
+ | * album references [[album sql table|album]](identifier) | ||
+ | * photo references [[photo sql table|photo]](identifier) | ||
+ | * version references [[photo_version sql table|photo_version]](identifier) | ||
+ | |||
+ | === Is referenced by tables === | ||
+ | |||
+ | None. | ||
=== Related sequences === | === Related sequences === | ||
+ | |||
+ | * [[album_content_id_sequence sql sequence|album_content_id_sequence]] | ||
=== Related indexes === | === Related indexes === | ||
+ | |||
+ | * [[album_content_album_idx sql index|album_content_album_idx]] | ||
+ | * < | ||
+ | * [[album_content_photo_idx sql index|album_content_photo_idx]] | ||
+ | * [[album_content_version_idx sql index|album_content_version_idx]] | ||
=== Related functions === | === Related functions === | ||
+ | |||
+ | * [[count_photos_by_album sql function|count_photos_by_album]] | ||
+ | * [[count_photos_by_user sql function|count_photos_by_user]] | ||
=== Related views === | === Related views === | ||
+ | |||
+ | None. | ||
=== History === | === History === | ||
Line 27: | Line 65: | ||
Still in use | Still in use | ||
- | == Change | + | == Schema change |
= Version 2.5 = | = Version 2.5 = | ||
- | | + | <code sql> |
- | ... | + | create table album_content ( |
- | | + | identifier |
+ | photo | ||
+ | album | ||
+ | ); | ||
+ | </ | ||
+ | |||
+ | = Version 2.34 = | ||
+ | |||
+ | <code sql> | ||
+ | -- Add ' | ||
+ | ALTER TABLE album_content | ||
+ | ADD version integer REFERENCES photo_version(identifier); | ||
+ | </ | ||
+ | |||
+ | <code sql> | ||
+ | ALTER TABLE album_content ALTER version SET NOT NULL; | ||
+ | </ | ||
+ | |||
+ | < | ||
+ | alter table album_content add date_added timestamp without time zone; | ||
+ | </ | ||
+ | |||
+ | == Data change history = | ||
+ | |||
+ | = Version 2.34 = | ||
+ | |||
+ | <code sql> | ||
+ | UPDATE album_content set version = | ||
+ | (SELECT identifier from photo_version v | ||
+ | | ||
+ | </ |
podoc/album_content_sql_table.1176381018.txt.gz · Last modified: 2007/04/12 12:30 by Luud