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Add ScanAllByLabel operator.

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Summary:
Replace NodeAtom with Symbol inside ScanAll. Move ScanAllCursor outside of
ScanAll class and make it generic with regards to vertices it produces.

Reviewers: mislav.bradac, florijan

Reviewed By: mislav.bradac, florijan

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D387
This commit is contained in:
Teon Banek
2017-05-19 15:37:28 +02:00
parent 839d63284b
commit d016472c3a
5 changed files with 135 additions and 54 deletions
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24
tests/unit/query_plan_common.hpp
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@@ -85,17 +85,35 @@ struct ScanAllTuple {
* Creates and returns a tuple of stuff for a scan-all starting
* from the node with the given name.
*
* Returns (node_atom, scan_all_logical_op, symbol).
* Returns ScanAllTuple(node_atom, scan_all_logical_op, symbol).
*/
ScanAllTuple MakeScanAll(AstTreeStorage &storage, SymbolTable &symbol_table,
const std::string &identifier,
std::shared_ptr<LogicalOperator> input = {nullptr},
GraphView graph_view = GraphView::OLD) {
auto node = NODE(identifier);
auto logical_op = std::make_shared<ScanAll>(node, input, graph_view);
auto symbol = symbol_table.CreateSymbol(identifier, true);
symbol_table[*node->identifier_] = symbol;
// return std::make_tuple(node, logical_op, symbol);
auto logical_op = std::make_shared<ScanAll>(input, symbol, graph_view);
return ScanAllTuple{node, logical_op, symbol};
}
/**
* Creates and returns a tuple of stuff for a scan-all starting
* from the node with the given name and label.
*
* Returns ScanAllTuple(node_atom, scan_all_logical_op, symbol).
*/
ScanAllTuple MakeScanAllByLabel(
AstTreeStorage &storage, SymbolTable &symbol_table,
const std::string &identifier, const GraphDbTypes::Label &label,
std::shared_ptr<LogicalOperator> input = {nullptr},
GraphView graph_view = GraphView::OLD) {
auto node = NODE(identifier);
auto symbol = symbol_table.CreateSymbol(identifier, true);
symbol_table[*node->identifier_] = symbol;
auto logical_op =
std::make_shared<ScanAllByLabel>(input, symbol, label, graph_view);
return ScanAllTuple{node, logical_op, symbol};
}