diff options
Diffstat (limited to 'sql/item.cc')
| -rw-r--r-- | sql/item.cc | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/sql/item.cc b/sql/item.cc index c4bb1a399ab..d5d5aeba970 100644 --- a/sql/item.cc +++ b/sql/item.cc @@ -2606,17 +2606,20 @@ void Item_field::fix_after_pullout(st_select_lex *new_parent, Item **ref) { if (new_parent == get_depended_from()) depended_from= NULL; - Name_resolution_context *ctx= new Name_resolution_context(); - ctx->outer_context= NULL; // We don't build a complete name resolver - ctx->table_list= NULL; // We rely on first_name_resolution_table instead - ctx->select_lex= new_parent; - ctx->first_name_resolution_table= context->first_name_resolution_table; - ctx->last_name_resolution_table= context->last_name_resolution_table; - ctx->error_processor= context->error_processor; - ctx->error_processor_data= context->error_processor_data; - ctx->resolve_in_select_list= context->resolve_in_select_list; - ctx->security_ctx= context->security_ctx; - this->context=ctx; + if (context) + { + Name_resolution_context *ctx= new Name_resolution_context(); + ctx->outer_context= NULL; // We don't build a complete name resolver + ctx->table_list= NULL; // We rely on first_name_resolution_table instead + ctx->select_lex= new_parent; + ctx->first_name_resolution_table= context->first_name_resolution_table; + ctx->last_name_resolution_table= context->last_name_resolution_table; + ctx->error_processor= context->error_processor; + ctx->error_processor_data= context->error_processor_data; + ctx->resolve_in_select_list= context->resolve_in_select_list; + ctx->security_ctx= context->security_ctx; + this->context=ctx; + } } |