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arangodb
mirror of https://gitee.com/bigwinds/arangodb
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This commit is contained in:
Jan Steemann 2014-07-30 13:18:40 +02:00
parent 4717979c74
commit 31b245fa73
1 changed files with 6 additions and 21 deletions
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27
arangod/Aql/QueryAst.cpp
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@ -1381,27 +1381,12 @@ void QueryAst::optimizeRoot() {
continue;
}
if (member->type == NODE_TYPE_FOR) {
// peek forward and check if the for contains a FILTER that is always false
bool isEmpty = false;
for (size_t j = i + 1; j < n; ++j) {
AstNode* sub = _root->getMember(j);
if (sub == nullptr) {
continue;
}
if (sub->type == NODE_TYPE_FILTER) {
// TODO: found a FILTER that is always false
isEmpty = true;
}
if (sub->type == NODE_TYPE_RETURN) {
}
}
}
// TODO: replace trampoline variables / expressions
// TODO: detect common sub-expressions
// TODO: remove always-true filters
// TODO: remove blocks that contains always-false filters
// TODO: pull up LET assignments
// TODO: pull up FILTER
}
*/
}