Hawkin
/
arangodb
mirror of https://gitee.com/bigwinds/arangodb
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

handle subqueries in the AST

This commit is contained in:
Jan Steemann 2014-08-05 17:07:23 +02:00
parent 1bb42c31e8
commit af288d9fe0
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arangod/Aql/ExecutionPlan.cpp
View File

@ -241,6 +241,8 @@ ExecutionNode* ExecutionPlan::fromNodeFilter (Ast const* ast,
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
/// @brief create an execution plan element from an AST LET node /// @brief create an execution plan element from an AST LET node
/// this also includes handling of subqueries (as subqueries can only occur
/// inside LET nodes)
//////////////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////////////
ExecutionNode* ExecutionPlan::fromNodeLet (Ast const* ast, ExecutionNode* ExecutionPlan::fromNodeLet (Ast const* ast,
@ -257,9 +259,14 @@ ExecutionNode* ExecutionPlan::fromNodeLet (Ast const* ast,
ExecutionNode* en = nullptr; ExecutionNode* en = nullptr;
if (expression->type == NODE_TYPE_SUBQUERY) { if (expression->type == NODE_TYPE_SUBQUERY) {
std::cout << "FAILED HERE\n"; // operand is a subquery...
// TODO: node might be a subquery. this is currently NOT handled auto subquery = fromNode(ast, expression);
THROW_ARANGO_EXCEPTION(TRI_ERROR_NOT_IMPLEMENTED);
if (subquery == nullptr) {
THROW_ARANGO_EXCEPTION(TRI_ERROR_OUT_OF_MEMORY);
}
en = addNode(new SubqueryNode(subquery, v));
} }
else { else {
// operand is some misc expression, including references to other variables // operand is some misc expression, including references to other variables