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author | Aaron Patterson <aaron.patterson@gmail.com> | 2010-11-05 14:28:36 -0700 |
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committer | Aaron Patterson <aaron.patterson@gmail.com> | 2010-11-05 14:28:36 -0700 |
commit | 22a38c6a86bc6323f7aa1fd3179a9f8ed7591267 (patch) | |
tree | f800dd300d7ee0e9288e3dc20cd244fc4fc123bf /lib/arel/visitors | |
parent | a1a01e2bb301a7a4ae5c5cdcc27ece9f7edf6c66 (diff) | |
download | rails-22a38c6a86bc6323f7aa1fd3179a9f8ed7591267.tar.gz rails-22a38c6a86bc6323f7aa1fd3179a9f8ed7591267.tar.bz2 rails-22a38c6a86bc6323f7aa1fd3179a9f8ed7591267.zip |
mysql selects from dual on empty from statements
Diffstat (limited to 'lib/arel/visitors')
-rw-r--r-- | lib/arel/visitors/mysql.rb | 5 | ||||
-rw-r--r-- | lib/arel/visitors/to_sql.rb | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/lib/arel/visitors/mysql.rb b/lib/arel/visitors/mysql.rb index 594fd5504a..afffd37f9b 100644 --- a/lib/arel/visitors/mysql.rb +++ b/lib/arel/visitors/mysql.rb @@ -10,6 +10,11 @@ module Arel super end + def visit_Arel_Nodes_SelectCore o + o.froms ||= Arel.sql('DUAL') + super + end + def visit_Arel_Nodes_UpdateStatement o [ "UPDATE #{visit o.relation}", diff --git a/lib/arel/visitors/to_sql.rb b/lib/arel/visitors/to_sql.rb index 1412797fb5..3c96b3e259 100644 --- a/lib/arel/visitors/to_sql.rb +++ b/lib/arel/visitors/to_sql.rb @@ -48,6 +48,7 @@ module Arel ("WHERE #{wheres.map { |x| visit x }.join ' AND '}" unless wheres.empty?) ].compact.join ' ' end + def visit_Arel_Nodes_InsertStatement o [ "INSERT INTO #{visit o.relation}", |