mirror of https://github.com/buster-so/buster.git
32 lines
1.1 KiB
MySQL
32 lines
1.1 KiB
MySQL
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ALTER TABLE chats
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ADD COLUMN most_recent_file_id UUID NULL,
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ADD COLUMN most_recent_file_type VARCHAR(255) NULL;
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-- Add indices to improve query performance
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CREATE INDEX idx_chats_most_recent_file_id ON chats(most_recent_file_id);
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CREATE INDEX idx_chats_most_recent_file_type ON chats(most_recent_file_type);
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-- Data Migration - Set most_recent_file_id and most_recent_file_type for existing chats
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WITH LatestFilePerChat AS (
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SELECT DISTINCT ON (m.chat_id)
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m.chat_id,
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mtf.file_id,
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-- Determine file type
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CASE
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WHEN mf.id IS NOT NULL THEN 'metric'
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WHEN df.id IS NOT NULL THEN 'dashboard'
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ELSE NULL
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END AS file_type
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FROM messages m
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JOIN messages_to_files mtf ON m.id = mtf.message_id
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LEFT JOIN metric_files mf ON mtf.file_id = mf.id
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LEFT JOIN dashboard_files df ON mtf.file_id = df.id
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WHERE m.deleted_at IS NULL AND mtf.deleted_at IS NULL
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ORDER BY m.chat_id, m.created_at DESC
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)
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UPDATE chats c
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SET
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most_recent_file_id = lfpc.file_id,
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most_recent_file_type = lfpc.file_type
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FROM LatestFilePerChat lfpc
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WHERE c.id = lfpc.chat_id;
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