33 lines
1.3 KiB
MySQL
33 lines
1.3 KiB
MySQL
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-- Phase 4: Add language/voice/tokens columns to ai_conversations.
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-- All non-destructive with defaults so this is safe on existing rows.
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BEGIN;
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-- 1. Detected language of the user message. 2-letter ISO code (en, es, fr,
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-- de, hi, zh, ja, pt, ar, ru). Defaults to 'en' for back-compat.
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ALTER TABLE ai_conversations
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ADD COLUMN IF NOT EXISTS language VARCHAR(8) NOT NULL DEFAULT 'en';
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-- 2. Voice-input metadata: did this conversation come from a voice
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-- transcript, and how long was the audio?
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ALTER TABLE ai_conversations
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ADD COLUMN IF NOT EXISTS has_voice BOOLEAN NOT NULL DEFAULT FALSE,
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ADD COLUMN IF NOT EXISTS voice_duration_ms INTEGER;
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-- 3. Context-window management: a rough char-based token estimate for the
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-- query+response pair, plus a one-line LLM-generated summary that we can
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-- splice in when the conversation gets long.
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ALTER TABLE ai_conversations
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ADD COLUMN IF NOT EXISTS tokens_estimate INTEGER,
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ADD COLUMN IF NOT EXISTS summary TEXT;
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-- Hot path: "all conversations in a given language for analytics"
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CREATE INDEX IF NOT EXISTS idx_ai_conversations_language
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ON ai_conversations (language, created_at DESC);
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-- Hot path: "find voice conversations"
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CREATE INDEX IF NOT EXISTS idx_ai_conversations_voice
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ON ai_conversations (user_id, has_voice) WHERE has_voice = TRUE;
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COMMIT;
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