Apply indexing to json fields

Signed-off-by: Kipchirchir Sigei <[email protected]>

onadata/apps/logger/migrations/0005_add_date_fields_indexing.py

@@ -1,4 +1,4 @@
-# Generated by Django 3.2.18 on 2023-03-14 12:22
+# Generated by Django 3.2.20 on 2023-08-06 13:39
 
 from django.db import migrations, models
 
@@ -13,42 +13,49 @@ class Migration(migrations.Migration):
     operations = [
         migrations.SeparateDatabaseAndState(
             database_operations=[
+                # index the json date fields
                 migrations.RunSQL(
-                    sql='CREATE INDEX CONCURRENTLY "logger_inst_date_cr_42899d_idx" ON "logger_instance" ("date_created");',
+                    sql='CREATE INDEX CONCURRENTLY "logger_inst_date_cr_json_42899d_idx" ON "logger_instance" ((json->>\'_date_created\')) WHERE (json->>\'_date_created\') IS NOT NULL;',
+                    reverse_sql='DROP INDEX "logger_inst_date_cr_json_42899d_idx";',
+                ),
+                migrations.RunSQL(
+                    sql='CREATE INDEX CONCURRENTLY "logger_inst_date_mo_json_5a1bd3_idx" ON "logger_instance" ((json->>\'_date_modified\')) WHERE (json->>\'_date_modified\') IS NOT NULL;',
+                    reverse_sql='DROP INDEX "logger_inst_date_mo_json_5a1bd3_idx";',
+                ),
+                migrations.RunSQL(
+                    sql='CREATE INDEX CONCURRENTLY "logger_inst_deleted_at_json_da31a3_idx" ON "logger_instance" ((json->>\'_deleted_at\')) WHERE (json->>\'_deleted_at\') IS NOT NULL;',
+                    reverse_sql='DROP INDEX "logger_inst_deleted_at_json_da31a3_idx";',
+                ),
+                # index model date fields
+                migrations.RunSQL(
+                    sql='CREATE INDEX "logger_inst_date_cr_42899d_idx" ON "logger_instance" ("date_created");',
                     reverse_sql='DROP INDEX "logger_inst_date_cr_42899d_idx";',
                 ),
                 migrations.RunSQL(
-                    sql='CREATE INDEX CONCURRENTLY "logger_inst_date_mo_5a1bd3_idx" ON "logger_instance" ("date_modified");',
+                    sql='CREATE INDEX "logger_inst_date_mo_5a1bd3_idx" ON "logger_instance" ("date_modified");',
                     reverse_sql='DROP INDEX "logger_inst_date_mo_5a1bd3_idx";',
                 ),
                 migrations.RunSQL(
-                    sql='CREATE INDEX CONCURRENTLY "logger_inst_deleted_da31a3_idx" ON "logger_instance" ("deleted_at");',
-                    reverse_sql='DROP INDEX "logger_inst_deleted_da31a3_idx";',
+                    sql='CREATE INDEX "logger_inst_deleted_at_da31a3_idx" ON "logger_instance" ("deleted_at");',
+                    reverse_sql='DROP INDEX "logger_inst_deleted_at_da31a3_idx";',
                 ),
             ],
             state_operations=[
-                migrations.AddIndex(
+                migrations.AlterField(
                     model_name="instance",
-                    index=models.Index(
-                        fields=["date_created"], name="logger_inst_date_cr_42899d_idx"
-                    ),
+                    name="date_created",
+                    field=models.DateTimeField(auto_now_add=True, db_index=True),
                 ),
-                migrations.AddIndex(
+                migrations.AlterField(
                     model_name="instance",
-                    index=models.Index(
-                        fields=["date_modified"], name="logger_inst_date_mo_5a1bd3_idx"
-                    ),
+                    name="date_modified",
+                    field=models.DateTimeField(auto_now=True, db_index=True),
                 ),
-                migrations.AddIndex(
+                migrations.AlterField(
                     model_name="instance",
-                    index=models.Index(
-                        fields=["deleted_at"], name="logger_inst_deleted_da31a3_idx"
-                    ),
+                    name="deleted_at",
+                    field=models.DateTimeField(auto_now=True, db_index=True),
                 ),
             ],
         )
     ]
-
-
-
-