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-rw-r--r--lib/arel/errors.rb7
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/arel/errors.rb b/lib/arel/errors.rb
new file mode 100644
index 0000000000..c8a6af9f77
--- /dev/null
+++ b/lib/arel/errors.rb
@@ -0,0 +1,7 @@
+module Arel
+ class ArelError < StandardError
+ end
+
+ class EmptyJoinError < ArelError
+ end
+end