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Optimize Explore summary database query (#14797)

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* Optimize explore summary query with index

* implement rollback
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Josh Hawkins 2024-11-04 17:04:49 -06:00 committed by GitHub
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migrations/027_create_explore_index.py Normal file
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"""Peewee migrations -- 027_create_explore_index.py.
Some examples (model - class or model name)::
> Model = migrator.orm['model_name'] # Return model in current state by name
> migrator.sql(sql) # Run custom SQL
> migrator.python(func, *args, **kwargs) # Run python code
> migrator.create_model(Model) # Create a model (could be used as decorator)
> migrator.remove_model(model, cascade=True) # Remove a model
> migrator.add_fields(model, **fields) # Add fields to a model
> migrator.change_fields(model, **fields) # Change fields
> migrator.remove_fields(model, *field_names, cascade=True)
> migrator.rename_field(model, old_field_name, new_field_name)
> migrator.rename_table(model, new_table_name)
> migrator.add_index(model, *col_names, unique=False)
> migrator.drop_index(model, *col_names)
> migrator.add_not_null(model, *field_names)
> migrator.drop_not_null(model, *field_names)
> migrator.add_default(model, field_name, default)
"""
import peewee as pw
SQL = pw.SQL
def migrate(migrator, database, fake=False, **kwargs):
migrator.sql(
'CREATE INDEX IF NOT EXISTS "event_label_start_time" ON "event" ("label", "start_time" DESC)'
)
def rollback(migrator, database, fake=False, **kwargs):
migrator.sql('DROP INDEX IF EXISTS "event_label_start_time"')