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status-go/protocol/migrations/sqlite
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Andrea Maria Piana e3969a7752 Cache waku messages 
This commit re-introduces a feature that we lost during the migration to
status-go.
Messages are cached for a couple of days if processed correctly by
status-go, to avoid performance issues.
2021-01-18 09:38:27 +01:00
..
000001_init.down.db.sql
Add Commands (#1731)
2020-01-10 19:59:01 +01:00
000001_init.up.db.sql
Add Commands (#1731)
2020-01-10 19:59:01 +01:00
000002_add_last_ens_clock_value.up.sql
Verify ENS in the background (#1824)
2020-02-05 11:09:33 +01:00
1586358095_add_replace.up.sql
Add replies to messages
2020-04-16 15:51:28 +02:00
1588665364_add_image_data.up.sql
Create different index for filtering
2020-06-08 10:02:31 +02:00
1589365189_add_pow_target.up.sql
Create different index for filtering
2020-06-08 10:02:31 +02:00
1591277220_add_index_messages.up.sql
Create different index for filtering
2020-06-08 10:02:31 +02:00
1593087212_add_mute_chat_and_raw_message_fields.up.sql
Polish up and address review feedback
2020-07-27 08:51:28 +02:00
1595862781_add_audio_data.up.sql
add audio duration
2020-07-27 17:15:10 +02:00
1595865249_create_emoji_reactions_table.up.sql
Use local chat-id for matching messages
2020-07-30 20:20:59 +02:00
1596805115_create_group_chat_invitations_table.up.sql
group chat invitation
2020-09-07 12:15:58 +02:00
1597322655_add_invitation_admin_chat_field.up.sql
group chat invitation
2020-09-07 12:15:58 +02:00
1597757544_add_nickname.up.sql
[#11046] Add local contact names
2020-09-07 11:34:06 +02:00
1598955122_add_mentions.up.sql
Add parsing and storing of mentions
2020-09-09 21:22:07 +02:00
1599641390_add_emoji_reactions_index.up.sql
Add index to emoji reactions
2020-09-09 15:02:54 +02:00
1599720851_add_seen_index_remove_long_messages.up.sql
Force migration if dirty
2020-10-01 13:47:59 +02:00
1603198582_add_profile_chat_field.up.sql
profile status updates
2020-10-27 14:56:35 +01:00
1603816533_add_links.up.sql
Link previews support (#2059)
2020-10-27 19:35:28 +02:00
1603888149_create_chat_identity_last_published_table.up.sql
remove photo path in favor of images in contact
2020-12-17 14:10:00 +01:00
1605075346_add_communities.up.sql
Fix communities migration
2021-01-08 08:43:16 +01:00
1610117927_add_message_cache.up.sql
Cache waku messages
2021-01-18 09:38:27 +01:00
doc.go
Add replies to messages
2020-04-16 15:51:28 +02:00
README.md
Fix communities migration
2021-01-08 08:43:16 +01:00

README.md

How to write migrations?

We only write up migrations, down migrations are not always possible in sqlite or too complex/too expensive. For example to remove a column you would have to duplicate the table, copy over the data, delete and recreated. This can be very expensive for some tables (user_messages for example), so should not be attempted.

Notes

One issue we faced multiple times is that updates to user_messages can be very expensive, leading to slow upgrade times and interrupted migrations. So avoid writes if not necessary.