Created
August 28, 2015 14:55
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find duplicates + how many
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| count = Pod.arel_table[:host].count.as("dup_count") | |
| col = Arel::Nodes::SqlLiteral.new("dup_count") | |
| Pod. | |
| group(Pod.arel_table[:host]). | |
| having(col.gt(1)).order(col.desc). | |
| pluck(count.to_sql, :host). | |
| each do |pod| | |
| pp pod | |
| end |
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