Function getParameterizedViewInnerQuery

src/Analyzer/TableNode.cpp:46–55

Each call to a parameterized view with a different set of argument values produces a fresh `StorageView` that carries the substituted inner query but shares the original `StorageID`. Return that substituted query so callers can distinguish such storages by content.

/// `StorageView` that carries the substituted inner query but shares the original `StorageID`.
/// Return that substituted query so callers can distinguish such storages by content.
ASTPtr getParameterizedViewInnerQuery(const StoragePtr & storage)
{
    if (!storage)
        return nullptr;
    auto * view = storage->as<StorageView>();
    if (!view || !view->isParameterizedView())
        return nullptr;
    auto metadata_snapshot = view->getInMemoryMetadataPtr(nullptr, false);
    return metadata_snapshot->getSelectQuery().inner_query;
}

}