yiguolei commented on code in PR #66472:
URL: https://github.com/apache/doris/pull/66472#discussion_r3747247429
##########
be/src/storage/delete/delete_handler.cpp:
##########
@@ -535,45 +535,80 @@ Status DeleteHandler::_parse_column_pred(TabletSchemaSPtr
complete_schema,
col_unique_id = sub_predicate.column_unique_id();
}
}
- if (col_unique_id < 0) {
- const auto& column =
-
*DORIS_TRY(delete_pred_related_schema->column(condition.column_name));
- col_unique_id = column.unique_id();
- }
- condition.col_unique_id = col_unique_id;
- const auto& column = complete_schema->column_by_uid(col_unique_id);
- uint32_t index = complete_schema->field_index(col_unique_id);
+ ColumnId column_id;
+ RETURN_IF_ERROR(_resolve_column(read_schema, col_unique_id,
condition.column_name,
+ delete_pred_related_schema,
&column_id));
+ const auto& column = *read_schema.column(column_id);
+ condition.col_unique_id = column.unique_id();
std::shared_ptr<ColumnPredicate> predicate;
- RETURN_IF_ERROR(parse_to_predicate(index, column.name(),
column.get_vec_type(), condition,
- _predicate_arena, predicate));
+ RETURN_IF_ERROR(parse_to_predicate(column_id, column.name(),
column.get_vec_type(),
+ condition, _predicate_arena,
predicate));
if (predicate != nullptr) {
delete_conditions->column_predicate_vec.push_back(predicate);
}
}
return Status::OK();
}
-Status DeleteHandler::init(TabletSchemaSPtr tablet_schema,
+Status DeleteHandler::_resolve_column(ReadSchema& read_schema, int32_t
col_unique_id,
+ const std::string& column_name,
+ const TabletSchemaSPtr&
delete_pred_related_schema,
+ ColumnId* column_id) {
+ // A valid UID is the complete identity. A dropped column and a later
+ // same-name replacement must remain distinct.
+ if (col_unique_id >= 0) {
+ int32_t ordinal = read_schema.ordinal_by_uid(col_unique_id);
+ if (ordinal >= 0) {
+ *column_id = ordinal;
+ return Status::OK();
+ }
+ }
+
+ int32_t rowset_schema_ordinal = -1;
+ if (col_unique_id >= 0) {
+ rowset_schema_ordinal =
delete_pred_related_schema->field_index(col_unique_id);
+ } else {
+ rowset_schema_ordinal =
delete_pred_related_schema->field_index(column_name);
+ }
+ if (rowset_schema_ordinal < 0) {
+ return Status::Error<ErrorCode::DELETE_INVALID_CONDITION>(
+ "cannot find delete predicate column name={} unique_id={} in
rowset schema",
+ column_name, col_unique_id);
+ }
+
+ const auto& historical_column =
delete_pred_related_schema->columns()[rowset_schema_ordinal];
+ int32_t ordinal = read_schema.ordinal_by_column(*historical_column);
+ if (ordinal >= 0) {
+ *column_id = ordinal;
+ return Status::OK();
+ }
+
+ *column_id = read_schema.append_column(historical_column);
+ return Status::OK();
+}
+
+Status DeleteHandler::init(ReadSchemaSPtr& read_schema,
const std::vector<RowsetMetaSharedPtr>&
delete_preds, int64_t version) {
DCHECK(!_is_inited) << "reinitialize delete handler.";
DCHECK(version >= 0) << "invalid parameters. version=" << version;
+ ReadSchema extended_read_schema = *read_schema;
Review Comment:
这里copy 一下的目的是什么？
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