diff options
| author | Matilda Smeds <matildasmeds@users.noreply.github.com> | 2018-12-09 18:28:00 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-12-09 18:28:00 +0100 |
| commit | 317ad3a583fd3dbe06de8724c7fc1c6ded4cae8b (patch) | |
| tree | c7084e546cbc2f289ac8cf2057c1010b4dc7f880 /activerecord/lib/arel/visitors/mssql.rb | |
| parent | a87c91cd3993d776dc987ac43b5f6c897baa3206 (diff) | |
| parent | bad1041b82df941d588ae2565f62424d88104933 (diff) | |
| download | rails-317ad3a583fd3dbe06de8724c7fc1c6ded4cae8b.tar.gz rails-317ad3a583fd3dbe06de8724c7fc1c6ded4cae8b.tar.bz2 rails-317ad3a583fd3dbe06de8724c7fc1c6ded4cae8b.zip | |
Merge branch 'master' into guides_session_guidelines_2
Diffstat (limited to 'activerecord/lib/arel/visitors/mssql.rb')
| -rw-r--r-- | activerecord/lib/arel/visitors/mssql.rb | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/activerecord/lib/arel/visitors/mssql.rb b/activerecord/lib/arel/visitors/mssql.rb index d564e19089..fdd864b40d 100644 --- a/activerecord/lib/arel/visitors/mssql.rb +++ b/activerecord/lib/arel/visitors/mssql.rb @@ -12,6 +12,31 @@ module Arel # :nodoc: all private + def visit_Arel_Nodes_IsNotDistinctFrom(o, collector) + right = o.right + + if right.nil? + collector = visit o.left, collector + collector << " IS NULL" + else + collector << "EXISTS (VALUES (" + collector = visit o.left, collector + collector << ") INTERSECT VALUES (" + collector = visit right, collector + collector << "))" + end + end + + def visit_Arel_Nodes_IsDistinctFrom(o, collector) + if o.right.nil? + collector = visit o.left, collector + collector << " IS NOT NULL" + else + collector << "NOT " + visit_Arel_Nodes_IsNotDistinctFrom o, collector + end + end + def visit_Arel_Visitors_MSSQL_RowNumber(o, collector) collector << "ROW_NUMBER() OVER (ORDER BY " inject_join(o.children, collector, ", ") << ") as _row_num" |