mirror of https://github.com/zulip/zulip.git
97 lines
3.2 KiB
Python
97 lines
3.2 KiB
Python
from typing import Any
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from django.db import connection
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from zerver.lib.management import ZulipBaseCommand
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def create_indexes() -> None:
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# Creating concurrent indexes is kind of a pain with current versions
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# of Django/PostgreSQL, because you will get this error with seemingly
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# reasonable code:
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#
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# CREATE INDEX CONCURRENTLY cannot be executed from a function or multi-command string
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#
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# For a lot more detail on this process, refer to the commit message
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# that added this file to the repo.
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with connection.cursor() as cursor:
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# copied from 0082
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print("Creating index zerver_usermessage_starred_message_id.")
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cursor.execute(
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"""
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CREATE INDEX IF NOT EXISTS zerver_usermessage_starred_message_id
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ON zerver_usermessage (user_profile_id, message_id)
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WHERE (flags & 2) != 0;
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"""
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)
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# copied from 0083
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print("Creating index zerver_usermessage_mentioned_message_id.")
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cursor.execute(
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"""
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CREATE INDEX IF NOT EXISTS zerver_usermessage_mentioned_message_id
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ON zerver_usermessage (user_profile_id, message_id)
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WHERE (flags & 8) != 0;
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"""
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)
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# copied from 0095
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print("Creating index zerver_usermessage_unread_message_id.")
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cursor.execute(
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"""
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CREATE INDEX IF NOT EXISTS zerver_usermessage_unread_message_id
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ON zerver_usermessage (user_profile_id, message_id)
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WHERE (flags & 1) = 0;
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"""
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)
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# copied from 0098
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print("Creating index zerver_usermessage_has_alert_word_message_id.")
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cursor.execute(
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"""
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CREATE INDEX IF NOT EXISTS zerver_usermessage_has_alert_word_message_id
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ON zerver_usermessage (user_profile_id, message_id)
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WHERE (flags & 512) != 0;
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"""
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)
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# copied from 0099
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print("Creating index zerver_usermessage_wildcard_mentioned_message_id.")
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cursor.execute(
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"""
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CREATE INDEX IF NOT EXISTS zerver_usermessage_wildcard_mentioned_message_id
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ON zerver_usermessage (user_profile_id, message_id)
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WHERE (flags & 8) != 0 OR (flags & 16) != 0;
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"""
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)
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# copied from 0177
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print("Creating index zerver_usermessage_is_private_message_id.")
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cursor.execute(
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"""
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CREATE INDEX IF NOT EXISTS zerver_usermessage_is_private_message_id
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ON zerver_usermessage (user_profile_id, message_id)
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WHERE (flags & 2048) != 0;
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"""
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)
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# copied from 0180
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print("Creating index zerver_usermessage_active_mobile_push_notification_id.")
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cursor.execute(
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"""
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CREATE INDEX IF NOT EXISTS zerver_usermessage_active_mobile_push_notification_id
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ON zerver_usermessage (user_profile_id, message_id)
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WHERE (flags & 4096) != 0;
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"""
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)
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print("Finished.")
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class Command(ZulipBaseCommand):
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help = """Create concurrent indexes for large tables."""
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def handle(self, *args: Any, **options: str) -> None:
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create_indexes()
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