19 lines
633 B
SQL
19 lines
633 B
SQL
-- Custom SQL migration file, put you code below! --
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-- Step 1: Add the new 'datetime' column
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ALTER TABLE "hour"
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ADD COLUMN "datetime" TIMESTAMPTZ;
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-- Step 2: Update 'datetime' by combining 'Day.date' and 'Hour.time'
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UPDATE "hour"
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SET "datetime" = ("day"."date"::timestamp + ("hour"."time" * INTERVAL '1 hour')) AT TIME ZONE 'UTC'
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FROM "day"
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WHERE "hour"."dayId" = "day"."id";
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-- Step 3: Add a unique constraint to 'datetime'
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ALTER TABLE "hour"
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ADD CONSTRAINT "hour_datetime_unique" UNIQUE("datetime");
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-- Step 3: Drop the old 'time' column
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ALTER TABLE "hour"
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DROP COLUMN "time";
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