Stamping upgrade for new general indexes
authorBen Shum <bshum@biblio.org>
Thu, 14 Mar 2013 02:50:35 +0000 (22:50 -0400)
committerBen Shum <bshum@biblio.org>
Thu, 14 Mar 2013 02:51:57 +0000 (22:51 -0400)
Note: Changed the commands in the upgrade to CREATE INDEX CONCURRENTLY to be
in all caps to satisfy my own small sense of consistency.

Signed-off-by: Ben Shum <bshum@biblio.org>
Open-ILS/src/sql/Pg/002.schema.config.sql
Open-ILS/src/sql/Pg/upgrade/0782.schema.general-indexing-needs.sql [new file with mode: 0644]
Open-ILS/src/sql/Pg/upgrade/XXXX.schema.general-indexing-needs.sql [deleted file]

index e615146..c1feea7 100644 (file)
@@ -91,7 +91,7 @@ CREATE TRIGGER no_overlapping_deps
     BEFORE INSERT OR UPDATE ON config.db_patch_dependencies
     FOR EACH ROW EXECUTE PROCEDURE evergreen.array_overlap_check ('deprecates');
 
-INSERT INTO config.upgrade_log (version, applied_to) VALUES ('0781', :eg_version); -- berick/senator
+INSERT INTO config.upgrade_log (version, applied_to) VALUES ('0782', :eg_version); -- miker/bshum
 
 CREATE TABLE config.bib_source (
        id              SERIAL  PRIMARY KEY,
diff --git a/Open-ILS/src/sql/Pg/upgrade/0782.schema.general-indexing-needs.sql b/Open-ILS/src/sql/Pg/upgrade/0782.schema.general-indexing-needs.sql
new file mode 100644 (file)
index 0000000..2ec811f
--- /dev/null
@@ -0,0 +1,49 @@
+
+-- No transaction needed. This can be run on a live, production server.
+SELECT evergreen.upgrade_deps_block_check('0782', :eg_version);
+
+-- On a heavily used system, user activity lookup is painful.  This is used
+-- on the patron display in the staff client.
+--
+-- Measured speed increase: ~2s -> .01s
+CREATE INDEX CONCURRENTLY usr_activity_usr_idx on actor.usr_activity (usr);
+
+-- Finding open holds, often as a subquery within larger hold-related logic,
+-- can be sped up with the following.
+--
+-- Measured speed increase: ~3s -> .02s
+CREATE INDEX CONCURRENTLY hold_request_open_idx on action.hold_request (id) where cancel_time IS NULL AND fulfillment_time IS NULL;
+
+-- Hold queue position is a particularly difficult thing to calculate
+-- efficiently.  Recent changes in the query structure now allow some
+-- optimization via indexing.  These do that.
+--
+-- Measured speed increase: ~6s -> ~0.4s
+CREATE INDEX CONCURRENTLY cp_available_by_circ_lib_idx on asset.copy (circ_lib) where status IN (0,7);
+CREATE INDEX CONCURRENTLY hold_request_current_copy_before_cap_idx on action.hold_request (current_copy) where capture_time IS NULL AND cancel_time IS NULL;
+
+-- After heavy use, fetching EDI messages becomes time consuming.  The following
+-- index addresses that for large-data environments.
+-- 
+-- Measured speed increase: ~3s -> .1s
+CREATE INDEX CONCURRENTLY edi_message_account_status_idx on acq.edi_message (account,status);
+
+-- After heavy use, fetching POs becomes time consuming.  The following
+-- index addresses that for large-data environments.
+-- 
+-- Measured speed increase: ~1.5s -> .1s
+CREATE INDEX CONCURRENTLY edi_message_po_idx on acq.edi_message (purchase_order);
+
+-- Related to EDI messages, fetching of certain A/T events benefit from specific
+-- indexing.  This index is more general than necessary for the observed query
+-- but ends up speeding several other (already relatively fast) queries.
+--
+-- Measured speed increase: ~2s -> .06s
+CREATE INDEX CONCURRENTLY atev_def_state on action_trigger.event (event_def,state);
+
+-- Retrieval of hold transit by hold id (for transit completion or cancelation)
+-- is slow in some query formulations.
+--
+-- Measured speed increase: ~.5s -> .1s
+CREATE INDEX CONCURRENTLY hold_transit_copy_hold_idx on action.hold_transit_copy (hold);
+
diff --git a/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.general-indexing-needs.sql b/Open-ILS/src/sql/Pg/upgrade/XXXX.schema.general-indexing-needs.sql
deleted file mode 100644 (file)
index 51d9897..0000000
+++ /dev/null
@@ -1,49 +0,0 @@
-
--- No transaction needed. This can be run on a live, production server.
-SELECT evergreen.upgrade_deps_block_check('XXXX', :eg_version);
-
--- On a heavily used system, user activity lookup is painful.  This is used
--- on the patron display in the staff client.
---
--- Measured speed increase: ~2s -> .01s
-create index concurrently usr_activity_usr_idx on actor.usr_activity (usr);
-
--- Finding open holds, often as a subquery within larger hold-related logic,
--- can be sped up with the following.
---
--- Measured speed increase: ~3s -> .02s
-create index concurrently hold_request_open_idx on action.hold_request (id) where cancel_time IS NULL AND fulfillment_time IS NULL;
-
--- Hold queue position is a particularly difficult thing to calculate
--- efficiently.  Recent changes in the query structure now allow some
--- optimization via indexing.  These do that.
---
--- Measured speed increase: ~6s -> ~0.4s
-create index concurrently cp_available_by_circ_lib_idx on asset.copy (circ_lib) where status IN (0,7);
-create index concurrently hold_request_current_copy_before_cap_idx on action.hold_request (current_copy) where capture_time IS NULL AND cancel_time IS NULL;
-
--- After heavy use, fetching EDI messages becomes time consuming.  The following
--- index addresses that for large-data environments.
--- 
--- Measured speed increase: ~3s -> .1s
-create index concurrently edi_message_account_status_idx on acq.edi_message (account,status);
-
--- After heavy use, fetching POs becomes time consuming.  The following
--- index addresses that for large-data environments.
--- 
--- Measured speed increase: ~1.5s -> .1s
-create index concurrently edi_message_po_idx on acq.edi_message (purchase_order);
-
--- Related to EDI messages, fetching of certain A/T events benefit from specific
--- indexing.  This index is more general than necessary for the observed query
--- but ends up speeding several other (already relatively fast) queries.
---
--- Measured speed increase: ~2s -> .06s
-create index concurrently atev_def_state on action_trigger.event (event_def,state);
-
--- Retrieval of hold transit by hold id (for transit completion or cancelation)
--- is slow in some query formulations.
---
--- Measured speed increase: ~.5s -> .1s
-create index concurrently hold_transit_copy_hold_idx on action.hold_transit_copy (hold);
-