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Enhancement/set expression depth by flag #3722

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merged 6 commits into from Jan 18, 2022
Merged

Enhancement/set expression depth by flag #3722

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0e8e866
Set expression depth limit by flag.
Shylock-Hg Jan 14, 2022
74f818c
Merge branch 'master' of https://github.com/vesoft-inc/nebula into en…
Shylock-Hg Jan 14, 2022
91e67c4
Format.
Shylock-Hg Jan 14, 2022
9be08fc
Merge branch 'master' into enhancement/set-expression-depth-by-flag
Aiee Jan 18, 2022
b63dcb3
Merge branch 'master' into enhancement/set-expression-depth-by-flag
Aiee Jan 18, 2022
ae2365f
Merge branch 'master' into enhancement/set-expression-depth-by-flag
Aiee Jan 18, 2022
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4 changes: 3 additions & 1 deletion src/graph/util/ExpressionUtils.cpp
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Expand Up @@ -18,6 +18,8 @@
#include "graph/context/QueryExpressionContext.h"
#include "graph/visitor/FoldConstantExprVisitor.h"

DEFINE_int32(max_expression_depth, 512, "Max depth of expression tree.");

namespace nebula {
namespace graph {

Expand Down Expand Up @@ -1221,7 +1223,7 @@ bool ExpressionUtils::checkExprDepth(const Expression *expr) {
size -= 1;
}
depth += 1;
if (depth > ExpressionUtils::kMaxDepth) {
if (depth > FLAGS_max_expression_depth) {
return false;
}
}
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4 changes: 2 additions & 2 deletions src/graph/util/ExpressionUtils.h
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Expand Up @@ -19,6 +19,8 @@
#include "graph/visitor/FindVisitor.h"
#include "graph/visitor/RewriteVisitor.h"

DECLARE_int32(max_expression_depth);

namespace nebula {
class ObjectPool;
namespace graph {
Expand Down Expand Up @@ -166,8 +168,6 @@ class ExpressionUtils {
static bool isGeoIndexAcceleratedPredicate(const Expression* expr);

static bool checkExprDepth(const Expression* expr);

static constexpr int32_t kMaxDepth = 512;
};

} // namespace graph
Expand Down
2 changes: 1 addition & 1 deletion src/parser/parser.yy
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Expand Up @@ -560,7 +560,7 @@ expression
if(!graph::ExpressionUtils::checkExprDepth($1)){
// delete $1;
std::ostringstream errStr;
errStr << "The above expression's depth exceeds the maximum depth:" << graph::ExpressionUtils::kMaxDepth;
errStr << "The above expression's depth exceeds the maximum depth:" << FLAGS_max_expression_depth;
throw nebula::GraphParser::syntax_error(@1, errStr.str());
}
$$ = $1;
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2 changes: 2 additions & 0 deletions tests/common/nebula_service.py
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Expand Up @@ -228,6 +228,8 @@ def _make_params(self, **kwargs):
# Login retry
self.graphd_param['failed_login_attempts'] = '5'
self.graphd_param['password_lock_time_in_secs'] = '10'
# expression depth limit
self.graphd_param['max_expression_depth'] = '128'

self.storaged_param = copy.copy(_params)
self.storaged_param['local_config'] = 'false'
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22 changes: 3 additions & 19 deletions tests/tck/features/expression/Depth.feature
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Expand Up @@ -9,32 +9,16 @@ Feature: Check Expression Depth
Scenario: yield exceeds expression
When executing query:
"""
YIELD 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
YIELD 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
1 + 1 + 1 + 1 + 1 + 1 + 1 AS result
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 AS result
"""
Then the result should be, in any order:
| result |
| 488 |
| 128 |
When executing query:
"""
YIELD 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 +
Expand Down