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#include "yql_dq_state.h"
#include "yql_dq_provider.h"
#include <ydb/library/yql/providers/common/provider/yql_provider_names.h>
#include <ydb/library/yql/providers/dq/expr_nodes/dqs_expr_nodes.h>
#include <ydb/library/yql/dq/integration/yql_dq_integration.h>
#include <ydb/library/yql/core/expr_nodes/yql_expr_nodes.h>
#include <ydb/library/yql/core/yql_expr_optimize.h>
#include <ydb/library/yql/core/yql_graph_transformer.h>
#include <ydb/library/yql/core/yql_expr_type_annotation.h>
#include <ydb/library/yql/core/yql_opt_utils.h>
#include <ydb/library/yql/ast/yql_expr.h>
#include <ydb/library/yql/utils/log/log.h>
#include <ydb/library/yql/dq/opt/dq_opt.h>
#include <ydb/library/yql/dq/opt/dq_opt_log.h>
#include <ydb/library/yql/minikql/mkql_program_builder.h>
#include <util/generic/scope.h>
namespace NYql {
using namespace NNodes;
using namespace NKikimr::NMiniKQL;
namespace {
const THashSet<TStringBuf> VALID_SOURCES = {DqProviderName, ConfigProviderName, YtProviderName, ClickHouseProviderName, YdbProviderName, S3ProviderName};
const THashSet<TStringBuf> VALID_SINKS = {ResultProviderName, YtProviderName, S3ProviderName};
}
namespace NDq {
bool CheckJoinColumns(const TExprBase& node);
} // namespace NDq
class TDqsRecaptureTransformer : public TSyncTransformerBase {
public:
TDqsRecaptureTransformer(TDqStatePtr state)
: State_(state)
{
}
TStatus DoTransform(TExprNode::TPtr input, TExprNode::TPtr& output, TExprContext& ctx) final {
output = input;
if (ctx.Step.IsDone(TExprStep::Recapture)) {
return TStatus::Ok;
}
Y_SCOPE_EXIT(&) {
FlushStatistics();
};
if (State_->ExternalUser && !State_->Settings->_EnablePorto.Get().GetOrElse(TDqSettings::TDefault::EnablePorto)) {
Statistics_["DqExternalUser"]++;
YQL_CLOG(DEBUG, ProviderDq) << "abort hidden";
State_->AbortHidden();
return TStatus::Ok;
}
if (State_->TypeCtx->ForceDq) {
Statistics_["DqForce"]++;
}
if (!State_->TypeCtx->ForceDq) {
if (!State_->Settings->AnalyzeQuery.Get().GetOrElse(false)) {
Statistics_["DqAnalyzerOff"]++;
}
if (State_->TypeCtx->PureResultDataSource != DqProviderName) {
Statistics_["DqPureResultDataSourceMismatch"]++;
}
if (State_->TypeCtx->PureResultDataSource != DqProviderName || !State_->Settings->AnalyzeQuery.Get().GetOrElse(false)) {
YQL_CLOG(DEBUG, ProviderDq) << "abort hidden";
State_->AbortHidden();
return TStatus::Ok;
}
Statistics_["DqAnalyzerOn"]++;
bool good = true;
TNodeSet visited;
Scan(*input, ctx, good, visited);
if (good) {
Statistics_["DqAnalyzerOk"]++;
} else {
Statistics_["DqAnalyzerFail"] ++;
}
if (!good) {
YQL_CLOG(DEBUG, ProviderDq) << "abort hidden";
State_->AbortHidden();
return TStatus::Ok;
}
}
State_->TypeCtx->DqFallbackPolicy = State_->Settings->FallbackPolicy.Get().GetOrElse(EFallbackPolicy::Default);
IGraphTransformer::TStatus status = NDq::DqWrapRead(input, output, ctx, *State_->TypeCtx, *State_->Settings);
if (input != output) {
YQL_CLOG(INFO, ProviderDq) << "DqsRecapture";
// TODO: Add before/after recapture transformers
State_->TypeCtx->DqCaptured = true;
// TODO: drop this after implementing DQS ConstraintTransformer
State_->TypeCtx->ExpectedConstraints.clear();
}
return status;
}
void Rewind() final {
}
private:
void AddInfo(TExprContext& ctx, const TString& message) const {
YQL_CLOG(DEBUG, ProviderDq) << message;
TIssue info("DQ cannot execute the query. Cause: " + message);
info.Severity = TSeverityIds::S_INFO;
ctx.IssueManager.RaiseIssue(info);
}
void Scan(const TExprNode& node, TExprContext& ctx, bool& good, TNodeSet& visited) const {
if (!visited.insert(&node).second) {
return;
}
TExprBase expr(&node);
if (TCoCommit::Match(&node)) {
for (size_t i = 0; i != node.ChildrenSize() && good; ++i) {
if (i != TCoCommit::idx_DataSink) {
Scan(*node.Child(i), ctx, good, visited);
}
}
} else if (auto datasource = TMaybeNode<TCoDataSource>(&node).Category()) {
if (!VALID_SOURCES.contains(datasource.Cast().Value())) {
AddInfo(ctx, TStringBuilder() << "source '" << datasource.Cast().Value() << "' is not supported by DQ");
good = false;
}
} else if (auto datasink = TMaybeNode<TCoDataSink>(&node).Category()) {
if (!VALID_SINKS.contains(datasink.Cast().Value())) {
AddInfo(ctx, TStringBuilder() << "sink '" << datasink.Cast().Value() << "' is not supported by DQ");
good = false;
}
} else if (TMaybeNode<TCoEquiJoin>(&node) && !NDq::CheckJoinColumns(expr)) {
AddInfo(ctx, TStringBuilder() << "unsupported join column");
good = false;
} else if (node.ChildrenSize() > 1 && TCoDataSource::Match(node.Child(1))) {
auto dataSourceName = node.Child(1)->Child(0)->Content();
if (dataSourceName != DqProviderName && !node.IsCallable(ConfigureName)) {
auto datasource = State_->TypeCtx->DataSourceMap.FindPtr(dataSourceName);
YQL_ENSURE(datasource);
auto dqIntegration = (*datasource)->GetDqIntegration();
if (dqIntegration) {
bool pragmas = dqIntegration->CheckPragmas(node, ctx, false);
bool canRead = pragmas && dqIntegration->CanRead(node, ctx, /*skipIssues = */ false);
if (!pragmas || !canRead) {
good = false;
if (!pragmas) {
State_->TypeCtx->PureResultDataSource.clear();
std::erase_if(State_->TypeCtx->AvailablePureResultDataSources,
[&](const auto& name) { return name == DqProviderName; });
}
}
} else {
AddInfo(ctx, TStringBuilder() << "source '" << dataSourceName << "' is not supported by DQ");
good = false;
}
}
if (good) {
Scan(node.Head(), ctx,good, visited);
}
} else if (node.GetTypeAnn()->GetKind() == ETypeAnnotationKind::World
&& !TCoCommit::Match(&node)
&& node.ChildrenSize() > 1
&& TCoDataSink::Match(node.Child(1))) {
auto dataSinkName = node.Child(1)->Child(0)->Content();
auto dataSink = State_->TypeCtx->DataSinkMap.FindPtr(dataSinkName);
YQL_ENSURE(dataSink);
if (auto dqIntegration = dataSink->Get()->GetDqIntegration()) {
if (auto canWrite = dqIntegration->CanWrite(node, ctx)) {
if (!canWrite.GetRef()) {
good = false;
} else if (!State_->Settings->EnableInsert.Get().GetOrElse(false)) {
AddInfo(ctx, TStringBuilder() << "'insert' support is disabled. Use PRAGMA dq.EnableInsert to explicitly enable it");
good = false;
}
}
}
if (good) {
for (size_t i = 0; i != node.ChildrenSize() && good; ++i) {
Scan(*node.Child(i), ctx, good, visited);
}
}
}
else if (TCoScriptUdf::Match(&node)) {
if (good && TCoScriptUdf::Match(&node) && NKikimr::NMiniKQL::IsSystemPython(NKikimr::NMiniKQL::ScriptTypeFromStr(node.Head().Content()))) {
AddInfo(ctx, TStringBuilder() << "system python udf");
good = false;
}
if (good) {
for (size_t i = 0; i != node.ChildrenSize() && good; ++i) {
Scan(*node.Child(i), ctx, good, visited);
}
}
}
else {
for (size_t i = 0; i != node.ChildrenSize() && good; ++i) {
Scan(*node.Child(i), ctx, good, visited);
}
}
}
private:
TDqStatePtr State_;
THashMap<TString, int> Statistics_;
void FlushStatistics() {
TOperationStatistics statistics;
for (const auto& [k, v] : Statistics_) {
if (v == 1) {
statistics.Entries.push_back(TOperationStatistics::TEntry(k, 0, 0, 0, 0, 1));
}
}
TGuard<TMutex> lock(State_->Mutex);
if (!statistics.Entries.empty()) {
State_->Statistics[State_->MetricId++] = statistics;
}
}
};
THolder<IGraphTransformer> CreateDqsRecaptureTransformer(TDqStatePtr state) {
return THolder(new TDqsRecaptureTransformer(state));
}
} // NYql
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