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changeset 4006:3dc2694557f1

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Speed up time based filtering of gauge measurements and predictions
author Tom Gottfried <tom@intevation.de>
date Thu, 18 Jul 2019 19:57:10 +0200
parents 5c7e797347a3
children 74ae9be9dc69
files schema/gemma.sql schema/updates/1003/01.add-indexes.sql schema/version.sql
diffstat 3 files changed, 10 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/schema/gemma.sql	Thu Jul 18 19:49:56 2019 +0200
+++ b/schema/gemma.sql	Thu Jul 18 19:57:10 2019 +0200
@@ -479,6 +479,8 @@
         staging_done boolean NOT NULL DEFAULT false,
         UNIQUE (location, measure_date, staging_done)
     )
+    CREATE INDEX gauge_measurements_measure_date
+        ON waterway.gauge_measurements (measure_date)
 
     CREATE TABLE gauge_predictions (
         location isrs NOT NULL,
@@ -500,6 +502,8 @@
         source_organization varchar NOT NULL, -- "originator" from NtS response
         PRIMARY KEY (location, measure_date, date_issue)
     )
+    CREATE INDEX gauge_predictions_measure_date
+        ON waterway.gauge_predictions (measure_date)
 
     CREATE TABLE waterway_axis (
         id int PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY,
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/schema/updates/1003/01.add-indexes.sql	Thu Jul 18 19:57:10 2019 +0200
@@ -0,0 +1,5 @@
+CREATE INDEX gauge_measurements_measure_date
+    ON waterway.gauge_measurements (measure_date);
+
+CREATE INDEX gauge_predictions_measure_date
+    ON waterway.gauge_predictions (measure_date)
--- a/schema/version.sql	Thu Jul 18 19:49:56 2019 +0200
+++ b/schema/version.sql	Thu Jul 18 19:57:10 2019 +0200
@@ -1,1 +1,1 @@
-INSERT INTO gemma_schema_version(version) VALUES (1002);
+INSERT INTO gemma_schema_version(version) VALUES (1003);