Add an index on asset.copy(create_date) for item-age browse

Running an item-age browse against a database with a reasonable
number of entries in asset.copy is dog-slow without an index
like this.

git-svn-id: svn://svn.open-ils.org/ILS/trunk@18842 dcc99617-32d9-48b4-a31d-7c20da2025e4

diff --git a/Open-ILS/src/sql/Pg/002.schema.config.sql b/Open-ILS/src/sql/Pg/002.schema.config.sql
index d64150c..b2f36e9 100644 (file)
--- a/Open-ILS/src/sql/Pg/002.schema.config.sql
+++ b/Open-ILS/src/sql/Pg/002.schema.config.sql
@@ -70,7 +70,7 @@ CREATE TABLE config.upgrade_log (
     install_date    TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
 );
 
-INSERT INTO config.upgrade_log (version) VALUES ('0465'); -- dbs
+INSERT INTO config.upgrade_log (version) VALUES ('0466'); -- dbs
 
 CREATE TABLE config.bib_source (
        id              SERIAL  PRIMARY KEY,

diff --git a/Open-ILS/src/sql/Pg/040.schema.asset.sql b/Open-ILS/src/sql/Pg/040.schema.asset.sql
index 767f46e..c453619 100644 (file)
--- a/Open-ILS/src/sql/Pg/040.schema.asset.sql
+++ b/Open-ILS/src/sql/Pg/040.schema.asset.sql
@@ -88,6 +88,7 @@ CREATE INDEX cp_cn_idx ON asset.copy (call_number);
 CREATE INDEX cp_avail_cn_idx ON asset.copy (call_number);
 CREATE INDEX cp_creator_idx  ON asset.copy ( creator );
 CREATE INDEX cp_editor_idx   ON asset.copy ( editor );
+CREATE INDEX cp_create_date  ON asset.copy (create_date);
 CREATE RULE protect_copy_delete AS ON DELETE TO asset.copy DO INSTEAD UPDATE asset.copy SET deleted = TRUE WHERE OLD.id = asset.copy.id;
 
 CREATE TABLE asset.opac_visible_copies (

diff --git a/Open-ILS/src/sql/Pg/upgrade/0466.schema.asset-copy-add-create-date-index.sql b/Open-ILS/src/sql/Pg/upgrade/0466.schema.asset-copy-add-create-date-index.sql
new file mode 100644 (file)
index 0000000..813b215
--- /dev/null
+++ b/Open-ILS/src/sql/Pg/upgrade/0466.schema.asset-copy-add-create-date-index.sql
@@ -0,0 +1,8 @@
+
+BEGIN;
+
+INSERT INTO config.upgrade_log (version) VALUES ('0466'); -- dbs
+
+CREATE INDEX cp_create_date  ON asset.copy (create_date);
+
+COMMIT;