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Added some hints for the query planner for bad quality indexes

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This commit is contained in:
emeric
2024-04-17 19:27:51 +02:00
parent 42315395fd
commit a5b7e7e5f3
1 changed files with 3 additions and 2 deletions
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src/libs/database/impl/Cluster.cpp
+3 -2
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@@ -39,7 +39,8 @@ namespace lms::db
{
session.checkReadTransaction();
auto query{ session.getDboSession()->query<ResultType>("SELECT DISTINCT " + std::string{ itemToSelect } + " FROM cluster c") };
auto query{ session.getDboSession()->query<ResultType>("SELECT " + std::string{ itemToSelect } + " FROM cluster c") };
query.groupBy("c.id");
if (params.track.isValid() || params.release.isValid())
{
@@ -56,7 +57,7 @@ namespace lms::db
assert(!params.clusterType.isValid() || params.clusterTypeName.empty());
if (params.clusterType.isValid())
query.where("c.cluster_type_id = ?").bind(params.clusterType);
query.where("+c.cluster_type_id = ?").bind(params.clusterType); // Exclude this since the query planner does not do a good job when db is not analyzed
else if (!params.clusterTypeName.empty())
query.where("c_t.name = ?").bind(params.clusterTypeName);