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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb9
1 files changed, 8 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
index 9d9e8a4110..2cb0a2a4df 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb
@@ -39,7 +39,9 @@ module ActiveRecord
end
def visit_TableDefinition(o)
- create_sql = +"CREATE#{' TEMPORARY' if o.temporary} TABLE #{quote_table_name(o.name)} "
+ create_sql = +"CREATE#{table_modifier_in_create(o)} TABLE "
+ create_sql << "IF NOT EXISTS " if o.if_not_exists
+ create_sql << "#{quote_table_name(o.name)} "
statements = o.columns.map { |c| accept c }
statements << accept(o.primary_keys) if o.primary_keys
@@ -119,6 +121,11 @@ module ActiveRecord
sql
end
+ # Returns any SQL string to go between CREATE and TABLE. May be nil.
+ def table_modifier_in_create(o)
+ " TEMPORARY" if o.temporary
+ end
+
def foreign_key_in_create(from_table, to_table, options)
options = foreign_key_options(from_table, to_table, options)
accept ForeignKeyDefinition.new(from_table, to_table, options)