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database: change reading_speed columns from DECIMAL to REAL

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- Changed words_per_minute, pages_per_minute, total_reading_minutes from DECIMAL(6,2) / DECIMAL(8,2) to REAL
- REAL (pgtype.Float4) is sufficient for reading statistics and simplifies Go code
- No precision loss for typical reading speed values (200-400 wpm, 0.5-3.0 pages/min)
This commit is contained in:
john-okeefe
2026-04-03 16:52:53 -04:00
parent 3228b62ea3
commit dd621956b9
1 changed files with 3 additions and 3 deletions
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database/schema/schema.sql
+3 -3
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@@ -1174,10 +1174,10 @@ CREATE TABLE IF NOT EXISTS reading_speed (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
media_item_id UUID NOT NULL REFERENCES media_items(id) ON DELETE CASCADE,
words_per_minute DECIMAL(6,2),
pages_per_minute DECIMAL(6,2),
words_per_minute REAL,
pages_per_minute REAL,
pages_read INTEGER DEFAULT 0,
total_reading_minutes DECIMAL(8,2) DEFAULT 0,
total_reading_minutes REAL DEFAULT 0,
last_read_at TIMESTAMPTZ DEFAULT NOW(),
updated_at TIMESTAMPTZ DEFAULT NOW(),
UNIQUE(user_id, media_item_id)