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Wim Van LaerandGitHub
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# Which Problems Are Solved - Typos - Punctuation - Markdown table formatting - ... (A bunch of issues my editor gave) # How the Problems Are Solved # Additional Changes # Additional Context
14 lines
714 B
SQL
14 lines
714 B
SQL
-- the query is so complex because we accidentally stored unique constraint case-sensitive
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-- the query checks first if there is a case-sensitive match and afterward if there is a case-insensitive match
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(instance_id = $%[1]d AND unique_type = $%[2]d AND unique_field = (
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SELECT unique_field from (
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SELECT instance_id, unique_type, unique_field
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FROM eventstore.unique_constraints
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WHERE instance_id = $%[1]d AND unique_type = $%[2]d AND unique_field = $%[3]d
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UNION ALL
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SELECT instance_id, unique_type, unique_field
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FROM eventstore.unique_constraints
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WHERE instance_id = $%[1]d AND unique_type = $%[2]d AND unique_field = LOWER($%[3]d)
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) AS case_insensitive_constraints LIMIT 1)
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)
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