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@@ -30,7 +30,7 @@ module Blazer
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error = Blazer::TIMEOUT_MESSAGE
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error = Blazer::TIMEOUT_MESSAGE
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end
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end
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else
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else
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- columns = response.first.keys || []
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+ columns = (response.first || {}).keys
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rows = response.map { |r| r.values }
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rows = response.map { |r| r.values }
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# Druid doesn't return column types
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# Druid doesn't return column types
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