MAP-635 Add indices to improve performance of SAR queries (#682)

ministryofjustice · Jan 31, 2024 · 1147bd5 · 1147bd5
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commit 1147bd5
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diff --git a/migrations/20240131000000_form_db.js b/migrations/20240131000000_form_db.js
@@ -0,0 +1,9 @@
+exports.up = knex =>
+  knex.schema.table('statement', table => {
+    table.index('report_id')
+  })
+
+exports.down = knex =>
+  knex.schema.table('statement', table => {
+    table.dropIndex('report_id')
+  })
diff --git a/migrations/20240131000001_form_db.js b/migrations/20240131000001_form_db.js
@@ -0,0 +1,9 @@
+exports.up = knex =>
+  knex.schema.table('statement_amendments', table => {
+    table.index('statement_id')
+  })
+
+exports.down = knex =>
+  knex.schema.table('statement_amendments', table => {
+    table.dropIndex('statement_id')
+  })
diff --git a/migrations/20240131000002_form_db.js b/migrations/20240131000002_form_db.js
@@ -0,0 +1,13 @@
+exports.up = knex =>
+  knex.schema.table('report', table => {
+    table.index('offender_no')
+    table.index('created_date')
+    table.index('incident_date')
+  })
+
+exports.down = knex =>
+  knex.schema.table('report', table => {
+    table.dropIndex('offender_no')
+    table.dropIndex('created_date')
+    table.dropIndex('incident_date')
+  })