Add setting ignore_materialized_views_with_dropped_target_table

src/Core/Settings.h

@@ -584,6 +584,7 @@ class IColumn;
     M(Bool, enable_early_constant_folding, true, "Enable query optimization where we analyze function and subqueries results and rewrite query if there're constants there", 0) \
     M(Bool, deduplicate_blocks_in_dependent_materialized_views, false, "Should deduplicate blocks for materialized views if the block is not a duplicate for the table. Use true to always deduplicate in dependent tables.", 0) \
     M(Bool, materialized_views_ignore_errors, false, "Allows to ignore errors for MATERIALIZED VIEW, and deliver original block to the table regardless of MVs", 0) \
+    M(Bool, ignore_materialized_views_with_dropped_target_table, false, "Ignore MVs with dropped taraget table during pushing to views", 0) \
     M(Bool, use_compact_format_in_distributed_parts_names, true, "Changes format of directories names for distributed table insert parts.", 0) \
     M(Bool, validate_polygons, true, "Throw exception if polygon is invalid in function pointInPolygon (e.g. self-tangent, self-intersecting). If the setting is false, the function will accept invalid polygons but may silently return wrong result.", 0) \
     M(UInt64, max_parser_depth, DBMS_DEFAULT_MAX_PARSER_DEPTH, "Maximum parser depth (recursion depth of recursive descend parser).", 0) \

src/Processors/Transforms/buildPushingToViewsChain.cpp

@@ -39,6 +39,7 @@ namespace DB
 namespace ErrorCodes
 {
     extern const int LOGICAL_ERROR;
+    extern const int UNKNOWN_TABLE;
 }
 
 ThreadStatusesHolder::~ThreadStatusesHolder()
@@ -319,7 +320,17 @@ Chain buildPushingToViewsChain(
             StoragePtr inner_table = materialized_view->tryGetTargetTable();
             /// If target table was dropped, ignore this materialized view.
             if (!inner_table)
-                continue;
+            {
+                if (context->getSettingsRef().ignore_materialized_views_with_dropped_target_table)
+                    continue;
+
+                throw Exception(
+                    ErrorCodes::UNKNOWN_TABLE,
+                    "Target table '{}' of view '{}' doesn't exists. To ignore this view use setting "
+                    "ignore_materialized_views_with_dropped_target_table",
+                    materialized_view->getTargetTableId().getFullTableName(),
+                    view_id.getFullTableName());
+            }
 
             auto inner_table_id = inner_table->getStorageID();
             auto inner_metadata_snapshot = inner_table->getInMemoryMetadataPtr();

src/Storages/StorageMaterializedView.h

@@ -71,6 +71,7 @@ public:
 
     StoragePtr getTargetTable() const;
     StoragePtr tryGetTargetTable() const;
+    const StorageID & getTargetTableId() const { return target_table_id; }
 
     /// Get the virtual column of the target table;
     NamesAndTypesList getVirtuals() const override;

tests/queries/0_stateless/02479_race_condition_between_insert_and_droppin_mv.sh

@@ -14,7 +14,7 @@ function insert {
     offset=500
     while true;
     do
-        ${CLICKHOUSE_CLIENT} -q "INSERT INTO test_race_condition_landing SELECT number, toString(number), toString(number) from system.numbers limit $i, $offset"
+        ${CLICKHOUSE_CLIENT} -q "INSERT INTO test_race_condition_landing SELECT number, toString(number), toString(number) from system.numbers limit $i, $offset settings ignore_materialized_views_with_dropped_target_table=1"
         i=$(( $i + $RANDOM % 100 + 400 ))
     done
 }