fix: add an index on tool query audit log tables (#2752)

* fix: add an index on tool query audit log tables

* fix: add migration

dataworkspace/dataworkspace/apps/datasets/migrations/0151_auto_20230901_1347.py

@@ -0,0 +1,36 @@
+# Generated by Django 3.2.19 on 2023-09-01 13:47
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("datasets", "0150_pipeline_notes"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="toolqueryauditlogtable",
+            name="schema",
+            field=models.CharField(
+                db_index=True,
+                default="public",
+                max_length=63,
+                validators=[
+                    django.core.validators.RegexValidator(regex="^[a-zA-Z][a-zA-Z0-9_\\.]*$")
+                ],
+            ),
+        ),
+        migrations.AlterField(
+            model_name="toolqueryauditlogtable",
+            name="table",
+            field=models.CharField(
+                db_index=True,
+                max_length=63,
+                validators=[
+                    django.core.validators.RegexValidator(regex="^[a-zA-Z][a-zA-Z0-9_\\.]*$")
+                ],
+            ),
+        ),
+    ]

dataworkspace/dataworkspace/apps/datasets/models.py

@@ -2758,10 +2758,12 @@ class ToolQueryAuditLogTable(models.Model):
         max_length=63,
         validators=[RegexValidator(regex=r"^[a-zA-Z][a-zA-Z0-9_\.]*$")],
         default="public",
+        db_index=True,
     )
     table = models.CharField(
         max_length=63,
         validators=[RegexValidator(regex=r"^[a-zA-Z][a-zA-Z0-9_\.]*$")],
+        db_index=True,
     )