Revert "Extract `PredicateBuilder::CaseSensitiveHandler`"

This reverts commit 3a1f6fe7b4a70bf0698b0684dd48ac712c6883b6.

This commit takes the code in a direction that I am looking to avoid.
The predicate builder should be purely concerned with AST construction
as it matters to methods like `where`. Things like case sensitivity
should continue to be handled elsewhere.

1 files changed, 4 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index 3a28879c15..4333cd1f57 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -613,11 +613,12 @@ module ActiveRecord
         SQL
       end
 
-      def case_sensitive_comparison(attribute, column, value) # :nodoc:
+      def case_sensitive_comparison(table, attribute, column, value)
         if column.collation && !column.case_sensitive?
-          value = Arel::Nodes::Bin.new(value)
+          table[attribute].eq(Arel::Nodes::Bin.new(Arel::Nodes::BindParam.new))
+        else
+          super
         end
-        attribute.eq(value)
       end
 
       def can_perform_case_insensitive_comparison_for?(column)