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Improved indexing for improved performance on the course page, when viewing

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logs and when viewing lists of users ... thanks to Eloy for the one on the log file.
This commit is contained in:
moodler
2003-07-28 02:51:56 +00:00
parent 8b0ef9b0cb
commit a8fa25d18d
5 changed files with 26 additions and 5 deletions
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lib/db/postgres7.sql
+6 -2
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@@ -76,7 +76,7 @@ CREATE TABLE prefix_log (
);
CREATE INDEX prefix_log_coursemoduleaction_idx ON prefix_log (course,module,action);
CREATE INDEX prefix_log_timecoursemoduleaction_idx ON prefix_log (time,course,module,action);
CREATE INDEX prefix_log_courseuserid_idx ON prefix_log (course,userid);
CREATE TABLE prefix_log_display (
@@ -147,6 +147,8 @@ CREATE TABLE prefix_user_students (
time integer NOT NULL default '0'
);
CREATE INDEX prefix_user_students_courseuserid_idx ON prefix_user_students (course,userid);
CREATE TABLE prefix_user_teachers (
id SERIAL PRIMARY KEY,
userid integer NOT NULL default '0',
@@ -155,7 +157,9 @@ CREATE TABLE prefix_user_teachers (
role varchar(40) NOT NULL default ''
);
CREATE TABLE mdl_user_coursecreators (
CREATE INDEX prefix_user_teachers_courseuserid_idx ON prefix_user_teachers (course,userid);
CREATE TABLE prefix_user_coursecreators (
id SERIAL8 PRIMARY KEY,
userid int8 NOT NULL default '0'
);