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-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/oid.rb11
1 files changed, 8 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
index 540b3694b5..14beb7bd25 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
@@ -249,9 +249,14 @@ This is not reliable and will be removed in the future.
def type; :float end
def type_cast(value)
- return if value.nil?
-
- value.to_f
+ case value
+ when nil; nil
+ when 'Infinity'; ::Float::INFINITY
+ when '-Infinity'; -::Float::INFINITY
+ when 'NaN'; ::Float::NAN
+ else
+ value.to_f
+ end
end
end