22 lines
548 B
Ruby
22 lines
548 B
Ruby
# frozen_string_literal: true
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Sequel.migration do
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up do
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# Delete NBP.B rows that overlap with NBP (pre-2004 when both tables
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# carried EUR, USD, etc.)
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run <<~SQL
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DELETE FROM rates
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WHERE provider = 'NBP.B'
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AND (date, base, quote) IN (
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SELECT date, base, quote FROM rates WHERE provider = 'NBP'
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)
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SQL
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self[:rates].where(provider: "NBP.B").update(provider: "NBP")
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self[:providers].where(key: "NBP.B").delete
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end
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down do
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raise Sequel::Error, "irreversible migration"
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end
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end
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