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posthog/ee/management/commands/materialize_columns.py
2022-08-31 21:02:33 +01:00

78 lines
3.2 KiB
Python

import logging
from django.core.management.base import BaseCommand
from ee.clickhouse.materialized_columns.analyze import logger, materialize_properties_task
from ee.clickhouse.materialized_columns.columns import DEFAULT_TABLE_COLUMN
from posthog.settings import (
MATERIALIZE_COLUMNS_ANALYSIS_PERIOD_HOURS,
MATERIALIZE_COLUMNS_BACKFILL_PERIOD_DAYS,
MATERIALIZE_COLUMNS_MAX_AT_ONCE,
MATERIALIZE_COLUMNS_MINIMUM_QUERY_TIME,
)
class Command(BaseCommand):
help = "Materialize properties into columns in clickhouse"
def add_arguments(self, parser):
parser.add_argument("--dry-run", action="store_true", help="Print plan instead of executing it")
parser.add_argument("--property", help="Property to materialize. Skips analysis.")
parser.add_argument(
"--property-table", type=str, default="events", choices=["events", "person"], help="Table of --property"
)
parser.add_argument(
"--table-column",
help="The column to which --property should be materialised from.",
default=DEFAULT_TABLE_COLUMN,
)
parser.add_argument(
"--backfill-period",
type=int,
default=MATERIALIZE_COLUMNS_BACKFILL_PERIOD_DAYS,
help="How many days worth of data to backfill. 0 to disable. Same as MATERIALIZE_COLUMNS_BACKFILL_PERIOD_DAYS env variable.",
)
parser.add_argument(
"--min-query-time",
type=int,
default=MATERIALIZE_COLUMNS_MINIMUM_QUERY_TIME,
help="Minimum query time (ms) before a query if considered for optimization. Same as MATERIALIZE_COLUMNS_MINIMUM_QUERY_TIME env variable.",
)
parser.add_argument(
"--analyze-period",
type=int,
default=MATERIALIZE_COLUMNS_ANALYSIS_PERIOD_HOURS,
help="How long of a time period to analyze. Same as MATERIALIZE_COLUMNS_ANALYSIS_PERIOD_HOURS env variable.",
)
parser.add_argument(
"--max-columns",
type=int,
default=MATERIALIZE_COLUMNS_MAX_AT_ONCE,
help="Max number of columns to materialize via single invocation. Same as MATERIALIZE_COLUMNS_MAX_AT_ONCE env variable.",
)
def handle(self, *args, **options):
logger.setLevel(logging.INFO)
if options["dry_run"]:
logger.warn("Dry run: No changes to the tables will be made!")
if options.get("property"):
logger.info(f"Materializing column. table={options['property_table']}, property_name={options['property']}")
materialize_properties_task(
columns_to_materialize=[(options["property_table"], options["table_column"], options["property"], 0)],
backfill_period_days=options["backfill_period"],
dry_run=options["dry_run"],
)
else:
materialize_properties_task(
time_to_analyze_hours=options["analyze_period"],
maximum=options["max_columns"],
min_query_time=options["min_query_time"],
backfill_period_days=options["backfill_period"],
dry_run=options["dry_run"],
)