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https://github.com/ClickHouse/ClickHouse.git
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added input_format_json_empty_as_default to setting changes history
This commit is contained in:
Alexis Arnaud
parent
d5bea37c96
commit
7b09ec9ccb
@ -509,6 +509,266 @@ static std::initializer_list<std::pair<ClickHouseVersion, SettingsChangesHistory
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{"enable_optimize_predicate_expression", 0, 1, "Optimize predicates to subqueries by default"}
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}
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},
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{"24.7", {{"output_format_parquet_write_page_index", false, true, "Add a possibility to write page index into parquet files."},
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{"output_format_binary_encode_types_in_binary_format", false, false, "Added new setting to allow to write type names in binary format in RowBinaryWithNamesAndTypes output format"},
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{"input_format_binary_decode_types_in_binary_format", false, false, "Added new setting to allow to read type names in binary format in RowBinaryWithNamesAndTypes input format"},
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{"output_format_native_encode_types_in_binary_format", false, false, "Added new setting to allow to write type names in binary format in Native output format"},
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{"input_format_native_decode_types_in_binary_format", false, false, "Added new setting to allow to read type names in binary format in Native output format"},
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{"read_in_order_use_buffering", false, true, "Use buffering before merging while reading in order of primary key"},
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{"enable_named_columns_in_function_tuple", false, true, "Generate named tuples in function tuple() when all names are unique and can be treated as unquoted identifiers."},
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{"input_format_json_case_insensitive_column_matching", false, false, "Ignore case when matching JSON keys with CH columns."},
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{"optimize_trivial_insert_select", true, false, "The optimization does not make sense in many cases."},
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{"dictionary_validate_primary_key_type", false, false, "Validate primary key type for dictionaries. By default id type for simple layouts will be implicitly converted to UInt64."},
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{"collect_hash_table_stats_during_joins", false, true, "New setting."},
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{"max_size_to_preallocate_for_joins", 0, 100'000'000, "New setting."},
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{"input_format_orc_reader_time_zone_name", "GMT", "GMT", "The time zone name for ORC row reader, the default ORC row reader's time zone is GMT."},
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{"lightweight_mutation_projection_mode", "throw", "throw", "When lightweight delete happens on a table with projection(s), the possible operations include throw the exception as projection exists, or drop all projection related to this table then do lightweight delete."},
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{"database_replicated_allow_heavy_create", true, false, "Long-running DDL queries (CREATE AS SELECT and POPULATE) for Replicated database engine was forbidden"},
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{"query_plan_merge_filters", false, false, "Allow to merge filters in the query plan"},
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{"azure_sdk_max_retries", 10, 10, "Maximum number of retries in azure sdk"},
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{"azure_sdk_retry_initial_backoff_ms", 10, 10, "Minimal backoff between retries in azure sdk"},
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{"azure_sdk_retry_max_backoff_ms", 1000, 1000, "Maximal backoff between retries in azure sdk"},
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{"merge_tree_min_bytes_per_task_for_remote_reading", 4194304, 2097152, "Value is unified with `filesystem_prefetch_min_bytes_for_single_read_task`"},
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{"ignore_on_cluster_for_replicated_named_collections_queries", false, false, "Ignore ON CLUSTER clause for replicated named collections management queries."},
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{"backup_restore_s3_retry_attempts", 1000,1000, "Setting for Aws::Client::RetryStrategy, Aws::Client does retries itself, 0 means no retries. It takes place only for backup/restore."},
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{"postgresql_connection_attempt_timeout", 2, 2, "Allow to control 'connect_timeout' parameter of PostgreSQL connection."},
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{"postgresql_connection_pool_retries", 2, 2, "Allow to control the number of retries in PostgreSQL connection pool."},
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{"input_format_json_empty_as_default", true, false, "Added new setting to allow to treat empty fields in JSON input as default values."}
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}},
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{"24.6", {{"materialize_skip_indexes_on_insert", true, true, "Added new setting to allow to disable materialization of skip indexes on insert"},
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{"materialize_statistics_on_insert", true, true, "Added new setting to allow to disable materialization of statistics on insert"},
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{"input_format_parquet_use_native_reader", false, false, "When reading Parquet files, to use native reader instead of arrow reader."},
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{"hdfs_throw_on_zero_files_match", false, false, "Allow to throw an error when ListObjects request cannot match any files in HDFS engine instead of empty query result"},
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{"azure_throw_on_zero_files_match", false, false, "Allow to throw an error when ListObjects request cannot match any files in AzureBlobStorage engine instead of empty query result"},
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{"s3_validate_request_settings", true, true, "Allow to disable S3 request settings validation"},
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{"allow_experimental_full_text_index", false, false, "Enable experimental full-text index"},
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{"azure_skip_empty_files", false, false, "Allow to skip empty files in azure table engine"},
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{"hdfs_ignore_file_doesnt_exist", false, false, "Allow to return 0 rows when the requested files don't exist instead of throwing an exception in HDFS table engine"},
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{"azure_ignore_file_doesnt_exist", false, false, "Allow to return 0 rows when the requested files don't exist instead of throwing an exception in AzureBlobStorage table engine"},
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{"s3_ignore_file_doesnt_exist", false, false, "Allow to return 0 rows when the requested files don't exist instead of throwing an exception in S3 table engine"},
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{"s3_max_part_number", 10000, 10000, "Maximum part number number for s3 upload part"},
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{"s3_max_single_operation_copy_size", 32 * 1024 * 1024, 32 * 1024 * 1024, "Maximum size for a single copy operation in s3"},
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{"input_format_parquet_max_block_size", 8192, DEFAULT_BLOCK_SIZE, "Increase block size for parquet reader."},
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{"input_format_parquet_prefer_block_bytes", 0, DEFAULT_BLOCK_SIZE * 256, "Average block bytes output by parquet reader."},
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{"enable_blob_storage_log", true, true, "Write information about blob storage operations to system.blob_storage_log table"},
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{"allow_deprecated_snowflake_conversion_functions", true, false, "Disabled deprecated functions snowflakeToDateTime[64] and dateTime[64]ToSnowflake."},
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{"allow_statistic_optimize", false, false, "Old setting which popped up here being renamed."},
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{"allow_experimental_statistic", false, false, "Old setting which popped up here being renamed."},
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{"allow_statistics_optimize", false, false, "The setting was renamed. The previous name is `allow_statistic_optimize`."},
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{"allow_experimental_statistics", false, false, "The setting was renamed. The previous name is `allow_experimental_statistic`."},
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{"enable_vertical_final", false, true, "Enable vertical final by default again after fixing bug"},
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{"parallel_replicas_custom_key_range_lower", 0, 0, "Add settings to control the range filter when using parallel replicas with dynamic shards"},
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{"parallel_replicas_custom_key_range_upper", 0, 0, "Add settings to control the range filter when using parallel replicas with dynamic shards. A value of 0 disables the upper limit"},
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{"output_format_pretty_display_footer_column_names", 0, 1, "Add a setting to display column names in the footer if there are many rows. Threshold value is controlled by output_format_pretty_display_footer_column_names_min_rows."},
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{"output_format_pretty_display_footer_column_names_min_rows", 0, 50, "Add a setting to control the threshold value for setting output_format_pretty_display_footer_column_names_min_rows. Default 50."},
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{"output_format_csv_serialize_tuple_into_separate_columns", true, true, "A new way of how interpret tuples in CSV format was added."},
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{"input_format_csv_deserialize_separate_columns_into_tuple", true, true, "A new way of how interpret tuples in CSV format was added."},
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{"input_format_csv_try_infer_strings_from_quoted_tuples", true, true, "A new way of how interpret tuples in CSV format was added."},
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}},
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{"24.5", {{"allow_deprecated_error_prone_window_functions", true, false, "Allow usage of deprecated error prone window functions (neighbor, runningAccumulate, runningDifferenceStartingWithFirstValue, runningDifference)"},
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{"allow_experimental_join_condition", false, false, "Support join with inequal conditions which involve columns from both left and right table. e.g. t1.y < t2.y."},
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{"input_format_tsv_crlf_end_of_line", false, false, "Enables reading of CRLF line endings with TSV formats"},
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{"output_format_parquet_use_custom_encoder", false, true, "Enable custom Parquet encoder."},
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{"cross_join_min_rows_to_compress", 0, 10000000, "Minimal count of rows to compress block in CROSS JOIN. Zero value means - disable this threshold. This block is compressed when any of the two thresholds (by rows or by bytes) are reached."},
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{"cross_join_min_bytes_to_compress", 0, 1_GiB, "Minimal size of block to compress in CROSS JOIN. Zero value means - disable this threshold. This block is compressed when any of the two thresholds (by rows or by bytes) are reached."},
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{"http_max_chunk_size", 0, 0, "Internal limitation"},
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{"prefer_external_sort_block_bytes", 0, DEFAULT_BLOCK_SIZE * 256, "Prefer maximum block bytes for external sort, reduce the memory usage during merging."},
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{"input_format_force_null_for_omitted_fields", false, false, "Disable type-defaults for omitted fields when needed"},
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{"cast_string_to_dynamic_use_inference", false, false, "Add setting to allow converting String to Dynamic through parsing"},
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{"allow_experimental_dynamic_type", false, false, "Add new experimental Dynamic type"},
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{"azure_max_blocks_in_multipart_upload", 50000, 50000, "Maximum number of blocks in multipart upload for Azure."},
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}},
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{"24.4", {{"input_format_json_throw_on_bad_escape_sequence", true, true, "Allow to save JSON strings with bad escape sequences"},
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{"max_parsing_threads", 0, 0, "Add a separate setting to control number of threads in parallel parsing from files"},
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{"ignore_drop_queries_probability", 0, 0, "Allow to ignore drop queries in server with specified probability for testing purposes"},
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{"lightweight_deletes_sync", 2, 2, "The same as 'mutation_sync', but controls only execution of lightweight deletes"},
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{"query_cache_system_table_handling", "save", "throw", "The query cache no longer caches results of queries against system tables"},
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{"input_format_json_ignore_unnecessary_fields", false, true, "Ignore unnecessary fields and not parse them. Enabling this may not throw exceptions on json strings of invalid format or with duplicated fields"},
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{"input_format_hive_text_allow_variable_number_of_columns", false, true, "Ignore extra columns in Hive Text input (if file has more columns than expected) and treat missing fields in Hive Text input as default values."},
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{"allow_experimental_database_replicated", false, true, "Database engine Replicated is now in Beta stage"},
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{"temporary_data_in_cache_reserve_space_wait_lock_timeout_milliseconds", (10 * 60 * 1000), (10 * 60 * 1000), "Wait time to lock cache for sapce reservation in temporary data in filesystem cache"},
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{"optimize_rewrite_sum_if_to_count_if", false, true, "Only available for the analyzer, where it works correctly"},
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{"azure_allow_parallel_part_upload", "true", "true", "Use multiple threads for azure multipart upload."},
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{"max_recursive_cte_evaluation_depth", DBMS_RECURSIVE_CTE_MAX_EVALUATION_DEPTH, DBMS_RECURSIVE_CTE_MAX_EVALUATION_DEPTH, "Maximum limit on recursive CTE evaluation depth"},
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{"query_plan_convert_outer_join_to_inner_join", false, true, "Allow to convert OUTER JOIN to INNER JOIN if filter after JOIN always filters default values"},
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}},
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{"24.3", {{"s3_connect_timeout_ms", 1000, 1000, "Introduce new dedicated setting for s3 connection timeout"},
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{"allow_experimental_shared_merge_tree", false, true, "The setting is obsolete"},
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{"use_page_cache_for_disks_without_file_cache", false, false, "Added userspace page cache"},
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{"read_from_page_cache_if_exists_otherwise_bypass_cache", false, false, "Added userspace page cache"},
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{"page_cache_inject_eviction", false, false, "Added userspace page cache"},
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{"default_table_engine", "None", "MergeTree", "Set default table engine to MergeTree for better usability"},
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{"input_format_json_use_string_type_for_ambiguous_paths_in_named_tuples_inference_from_objects", false, false, "Allow to use String type for ambiguous paths during named tuple inference from JSON objects"},
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{"traverse_shadow_remote_data_paths", false, false, "Traverse shadow directory when query system.remote_data_paths."},
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{"throw_if_deduplication_in_dependent_materialized_views_enabled_with_async_insert", false, true, "Deduplication in dependent materialized view cannot work together with async inserts."},
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{"parallel_replicas_allow_in_with_subquery", false, true, "If true, subquery for IN will be executed on every follower replica"},
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{"log_processors_profiles", false, true, "Enable by default"},
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{"function_locate_has_mysql_compatible_argument_order", false, true, "Increase compatibility with MySQL's locate function."},
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{"allow_suspicious_primary_key", true, false, "Forbid suspicious PRIMARY KEY/ORDER BY for MergeTree (i.e. SimpleAggregateFunction)"},
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{"filesystem_cache_reserve_space_wait_lock_timeout_milliseconds", 1000, 1000, "Wait time to lock cache for sapce reservation in filesystem cache"},
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{"max_parser_backtracks", 0, 1000000, "Limiting the complexity of parsing"},
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{"analyzer_compatibility_join_using_top_level_identifier", false, false, "Force to resolve identifier in JOIN USING from projection"},
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{"distributed_insert_skip_read_only_replicas", false, false, "If true, INSERT into Distributed will skip read-only replicas"},
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{"keeper_max_retries", 10, 10, "Max retries for general keeper operations"},
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{"keeper_retry_initial_backoff_ms", 100, 100, "Initial backoff timeout for general keeper operations"},
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{"keeper_retry_max_backoff_ms", 5000, 5000, "Max backoff timeout for general keeper operations"},
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{"s3queue_allow_experimental_sharded_mode", false, false, "Enable experimental sharded mode of S3Queue table engine. It is experimental because it will be rewritten"},
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{"allow_experimental_analyzer", false, true, "Enable analyzer and planner by default."},
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{"merge_tree_read_split_ranges_into_intersecting_and_non_intersecting_injection_probability", 0.0, 0.0, "For testing of `PartsSplitter` - split read ranges into intersecting and non intersecting every time you read from MergeTree with the specified probability."},
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{"allow_get_client_http_header", false, false, "Introduced a new function."},
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{"output_format_pretty_row_numbers", false, true, "It is better for usability."},
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{"output_format_pretty_max_value_width_apply_for_single_value", true, false, "Single values in Pretty formats won't be cut."},
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{"output_format_parquet_string_as_string", false, true, "ClickHouse allows arbitrary binary data in the String data type, which is typically UTF-8. Parquet/ORC/Arrow Strings only support UTF-8. That's why you can choose which Arrow's data type to use for the ClickHouse String data type - String or Binary. While Binary would be more correct and compatible, using String by default will correspond to user expectations in most cases."},
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{"output_format_orc_string_as_string", false, true, "ClickHouse allows arbitrary binary data in the String data type, which is typically UTF-8. Parquet/ORC/Arrow Strings only support UTF-8. That's why you can choose which Arrow's data type to use for the ClickHouse String data type - String or Binary. While Binary would be more correct and compatible, using String by default will correspond to user expectations in most cases."},
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{"output_format_arrow_string_as_string", false, true, "ClickHouse allows arbitrary binary data in the String data type, which is typically UTF-8. Parquet/ORC/Arrow Strings only support UTF-8. That's why you can choose which Arrow's data type to use for the ClickHouse String data type - String or Binary. While Binary would be more correct and compatible, using String by default will correspond to user expectations in most cases."},
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{"output_format_parquet_compression_method", "lz4", "zstd", "Parquet/ORC/Arrow support many compression methods, including lz4 and zstd. ClickHouse supports each and every compression method. Some inferior tools, such as 'duckdb', lack support for the faster `lz4` compression method, that's why we set zstd by default."},
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{"output_format_orc_compression_method", "lz4", "zstd", "Parquet/ORC/Arrow support many compression methods, including lz4 and zstd. ClickHouse supports each and every compression method. Some inferior tools, such as 'duckdb', lack support for the faster `lz4` compression method, that's why we set zstd by default."},
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{"output_format_pretty_highlight_digit_groups", false, true, "If enabled and if output is a terminal, highlight every digit corresponding to the number of thousands, millions, etc. with underline."},
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{"geo_distance_returns_float64_on_float64_arguments", false, true, "Increase the default precision."},
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{"azure_max_inflight_parts_for_one_file", 20, 20, "The maximum number of a concurrent loaded parts in multipart upload request. 0 means unlimited."},
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{"azure_strict_upload_part_size", 0, 0, "The exact size of part to upload during multipart upload to Azure blob storage."},
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{"azure_min_upload_part_size", 16*1024*1024, 16*1024*1024, "The minimum size of part to upload during multipart upload to Azure blob storage."},
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{"azure_max_upload_part_size", 5ull*1024*1024*1024, 5ull*1024*1024*1024, "The maximum size of part to upload during multipart upload to Azure blob storage."},
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{"azure_upload_part_size_multiply_factor", 2, 2, "Multiply azure_min_upload_part_size by this factor each time azure_multiply_parts_count_threshold parts were uploaded from a single write to Azure blob storage."},
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{"azure_upload_part_size_multiply_parts_count_threshold", 500, 500, "Each time this number of parts was uploaded to Azure blob storage, azure_min_upload_part_size is multiplied by azure_upload_part_size_multiply_factor."},
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{"output_format_csv_serialize_tuple_into_separate_columns", true, true, "A new way of how interpret tuples in CSV format was added."},
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{"input_format_csv_deserialize_separate_columns_into_tuple", true, true, "A new way of how interpret tuples in CSV format was added."},
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{"input_format_csv_try_infer_strings_from_quoted_tuples", true, true, "A new way of how interpret tuples in CSV format was added."},
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}},
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{"24.2", {{"allow_suspicious_variant_types", true, false, "Don't allow creating Variant type with suspicious variants by default"},
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{"validate_experimental_and_suspicious_types_inside_nested_types", false, true, "Validate usage of experimental and suspicious types inside nested types"},
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{"output_format_values_escape_quote_with_quote", false, false, "If true escape ' with '', otherwise quoted with \\'"},
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{"output_format_pretty_single_large_number_tip_threshold", 0, 1'000'000, "Print a readable number tip on the right side of the table if the block consists of a single number which exceeds this value (except 0)"},
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{"input_format_try_infer_exponent_floats", true, false, "Don't infer floats in exponential notation by default"},
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{"query_plan_optimize_prewhere", true, true, "Allow to push down filter to PREWHERE expression for supported storages"},
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{"async_insert_max_data_size", 1000000, 10485760, "The previous value appeared to be too small."},
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{"async_insert_poll_timeout_ms", 10, 10, "Timeout in milliseconds for polling data from asynchronous insert queue"},
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{"async_insert_use_adaptive_busy_timeout", false, true, "Use adaptive asynchronous insert timeout"},
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{"async_insert_busy_timeout_min_ms", 50, 50, "The minimum value of the asynchronous insert timeout in milliseconds; it also serves as the initial value, which may be increased later by the adaptive algorithm"},
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{"async_insert_busy_timeout_max_ms", 200, 200, "The minimum value of the asynchronous insert timeout in milliseconds; async_insert_busy_timeout_ms is aliased to async_insert_busy_timeout_max_ms"},
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{"async_insert_busy_timeout_increase_rate", 0.2, 0.2, "The exponential growth rate at which the adaptive asynchronous insert timeout increases"},
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{"async_insert_busy_timeout_decrease_rate", 0.2, 0.2, "The exponential growth rate at which the adaptive asynchronous insert timeout decreases"},
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{"format_template_row_format", "", "", "Template row format string can be set directly in query"},
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{"format_template_resultset_format", "", "", "Template result set format string can be set in query"},
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{"split_parts_ranges_into_intersecting_and_non_intersecting_final", true, true, "Allow to split parts ranges into intersecting and non intersecting during FINAL optimization"},
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{"split_intersecting_parts_ranges_into_layers_final", true, true, "Allow to split intersecting parts ranges into layers during FINAL optimization"},
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{"azure_max_single_part_copy_size", 256*1024*1024, 256*1024*1024, "The maximum size of object to copy using single part copy to Azure blob storage."},
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{"min_external_table_block_size_rows", DEFAULT_INSERT_BLOCK_SIZE, DEFAULT_INSERT_BLOCK_SIZE, "Squash blocks passed to external table to specified size in rows, if blocks are not big enough"},
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{"min_external_table_block_size_bytes", DEFAULT_INSERT_BLOCK_SIZE * 256, DEFAULT_INSERT_BLOCK_SIZE * 256, "Squash blocks passed to external table to specified size in bytes, if blocks are not big enough."},
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{"parallel_replicas_prefer_local_join", true, true, "If true, and JOIN can be executed with parallel replicas algorithm, and all storages of right JOIN part are *MergeTree, local JOIN will be used instead of GLOBAL JOIN."},
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{"optimize_time_filter_with_preimage", true, true, "Optimize Date and DateTime predicates by converting functions into equivalent comparisons without conversions (e.g. toYear(col) = 2023 -> col >= '2023-01-01' AND col <= '2023-12-31')"},
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{"extract_key_value_pairs_max_pairs_per_row", 0, 0, "Max number of pairs that can be produced by the `extractKeyValuePairs` function. Used as a safeguard against consuming too much memory."},
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{"default_view_definer", "CURRENT_USER", "CURRENT_USER", "Allows to set default `DEFINER` option while creating a view"},
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{"default_materialized_view_sql_security", "DEFINER", "DEFINER", "Allows to set a default value for SQL SECURITY option when creating a materialized view"},
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{"default_normal_view_sql_security", "INVOKER", "INVOKER", "Allows to set default `SQL SECURITY` option while creating a normal view"},
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{"mysql_map_string_to_text_in_show_columns", false, true, "Reduce the configuration effort to connect ClickHouse with BI tools."},
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{"mysql_map_fixed_string_to_text_in_show_columns", false, true, "Reduce the configuration effort to connect ClickHouse with BI tools."},
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}},
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{"24.1", {{"print_pretty_type_names", false, true, "Better user experience."},
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{"input_format_json_read_bools_as_strings", false, true, "Allow to read bools as strings in JSON formats by default"},
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{"output_format_arrow_use_signed_indexes_for_dictionary", false, true, "Use signed indexes type for Arrow dictionaries by default as it's recommended"},
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{"allow_experimental_variant_type", false, false, "Add new experimental Variant type"},
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{"use_variant_as_common_type", false, false, "Allow to use Variant in if/multiIf if there is no common type"},
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{"output_format_arrow_use_64_bit_indexes_for_dictionary", false, false, "Allow to use 64 bit indexes type in Arrow dictionaries"},
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{"parallel_replicas_mark_segment_size", 128, 128, "Add new setting to control segment size in new parallel replicas coordinator implementation"},
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{"ignore_materialized_views_with_dropped_target_table", false, false, "Add new setting to allow to ignore materialized views with dropped target table"},
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{"output_format_compression_level", 3, 3, "Allow to change compression level in the query output"},
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{"output_format_compression_zstd_window_log", 0, 0, "Allow to change zstd window log in the query output when zstd compression is used"},
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{"enable_zstd_qat_codec", false, false, "Add new ZSTD_QAT codec"},
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{"enable_vertical_final", false, true, "Use vertical final by default"},
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{"output_format_arrow_use_64_bit_indexes_for_dictionary", false, false, "Allow to use 64 bit indexes type in Arrow dictionaries"},
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{"max_rows_in_set_to_optimize_join", 100000, 0, "Disable join optimization as it prevents from read in order optimization"},
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{"output_format_pretty_color", true, "auto", "Setting is changed to allow also for auto value, disabling ANSI escapes if output is not a tty"},
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{"function_visible_width_behavior", 0, 1, "We changed the default behavior of `visibleWidth` to be more precise"},
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{"max_estimated_execution_time", 0, 0, "Separate max_execution_time and max_estimated_execution_time"},
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{"iceberg_engine_ignore_schema_evolution", false, false, "Allow to ignore schema evolution in Iceberg table engine"},
|
||||
{"optimize_injective_functions_in_group_by", false, true, "Replace injective functions by it's arguments in GROUP BY section in analyzer"},
|
||||
{"update_insert_deduplication_token_in_dependent_materialized_views", false, false, "Allow to update insert deduplication token with table identifier during insert in dependent materialized views"},
|
||||
{"azure_max_unexpected_write_error_retries", 4, 4, "The maximum number of retries in case of unexpected errors during Azure blob storage write"},
|
||||
{"split_parts_ranges_into_intersecting_and_non_intersecting_final", false, true, "Allow to split parts ranges into intersecting and non intersecting during FINAL optimization"},
|
||||
{"split_intersecting_parts_ranges_into_layers_final", true, true, "Allow to split intersecting parts ranges into layers during FINAL optimization"}}},
|
||||
{"23.12", {{"allow_suspicious_ttl_expressions", true, false, "It is a new setting, and in previous versions the behavior was equivalent to allowing."},
|
||||
{"input_format_parquet_allow_missing_columns", false, true, "Allow missing columns in Parquet files by default"},
|
||||
{"input_format_orc_allow_missing_columns", false, true, "Allow missing columns in ORC files by default"},
|
||||
{"input_format_arrow_allow_missing_columns", false, true, "Allow missing columns in Arrow files by default"}}},
|
||||
{"23.11", {{"parsedatetime_parse_without_leading_zeros", false, true, "Improved compatibility with MySQL DATE_FORMAT/STR_TO_DATE"}}},
|
||||
{"23.9", {{"optimize_group_by_constant_keys", false, true, "Optimize group by constant keys by default"},
|
||||
{"input_format_json_try_infer_named_tuples_from_objects", false, true, "Try to infer named Tuples from JSON objects by default"},
|
||||
{"input_format_json_read_numbers_as_strings", false, true, "Allow to read numbers as strings in JSON formats by default"},
|
||||
{"input_format_json_read_arrays_as_strings", false, true, "Allow to read arrays as strings in JSON formats by default"},
|
||||
{"input_format_json_infer_incomplete_types_as_strings", false, true, "Allow to infer incomplete types as Strings in JSON formats by default"},
|
||||
{"input_format_json_try_infer_numbers_from_strings", true, false, "Don't infer numbers from strings in JSON formats by default to prevent possible parsing errors"},
|
||||
{"http_write_exception_in_output_format", false, true, "Output valid JSON/XML on exception in HTTP streaming."}}},
|
||||
{"23.8", {{"rewrite_count_distinct_if_with_count_distinct_implementation", false, true, "Rewrite countDistinctIf with count_distinct_implementation configuration"}}},
|
||||
{"23.7", {{"function_sleep_max_microseconds_per_block", 0, 3000000, "In previous versions, the maximum sleep time of 3 seconds was applied only for `sleep`, but not for `sleepEachRow` function. In the new version, we introduce this setting. If you set compatibility with the previous versions, we will disable the limit altogether."}}},
|
||||
{"23.6", {{"http_send_timeout", 180, 30, "3 minutes seems crazy long. Note that this is timeout for a single network write call, not for the whole upload operation."},
|
||||
{"http_receive_timeout", 180, 30, "See http_send_timeout."}}},
|
||||
{"23.5", {{"input_format_parquet_preserve_order", true, false, "Allow Parquet reader to reorder rows for better parallelism."},
|
||||
{"parallelize_output_from_storages", false, true, "Allow parallelism when executing queries that read from file/url/s3/etc. This may reorder rows."},
|
||||
{"use_with_fill_by_sorting_prefix", false, true, "Columns preceding WITH FILL columns in ORDER BY clause form sorting prefix. Rows with different values in sorting prefix are filled independently"},
|
||||
{"output_format_parquet_compliant_nested_types", false, true, "Change an internal field name in output Parquet file schema."}}},
|
||||
{"23.4", {{"allow_suspicious_indices", true, false, "If true, index can defined with identical expressions"},
|
||||
{"allow_nonconst_timezone_arguments", true, false, "Allow non-const timezone arguments in certain time-related functions like toTimeZone(), fromUnixTimestamp*(), snowflakeToDateTime*()."},
|
||||
{"connect_timeout_with_failover_ms", 50, 1000, "Increase default connect timeout because of async connect"},
|
||||
{"connect_timeout_with_failover_secure_ms", 100, 1000, "Increase default secure connect timeout because of async connect"},
|
||||
{"hedged_connection_timeout_ms", 100, 50, "Start new connection in hedged requests after 50 ms instead of 100 to correspond with previous connect timeout"},
|
||||
{"formatdatetime_f_prints_single_zero", true, false, "Improved compatibility with MySQL DATE_FORMAT()/STR_TO_DATE()"},
|
||||
{"formatdatetime_parsedatetime_m_is_month_name", false, true, "Improved compatibility with MySQL DATE_FORMAT/STR_TO_DATE"}}},
|
||||
{"23.3", {{"output_format_parquet_version", "1.0", "2.latest", "Use latest Parquet format version for output format"},
|
||||
{"input_format_json_ignore_unknown_keys_in_named_tuple", false, true, "Improve parsing JSON objects as named tuples"},
|
||||
{"input_format_native_allow_types_conversion", false, true, "Allow types conversion in Native input forma"},
|
||||
{"output_format_arrow_compression_method", "none", "lz4_frame", "Use lz4 compression in Arrow output format by default"},
|
||||
{"output_format_parquet_compression_method", "snappy", "lz4", "Use lz4 compression in Parquet output format by default"},
|
||||
{"output_format_orc_compression_method", "none", "lz4_frame", "Use lz4 compression in ORC output format by default"},
|
||||
{"async_query_sending_for_remote", false, true, "Create connections and send query async across shards"}}},
|
||||
{"23.2", {{"output_format_parquet_fixed_string_as_fixed_byte_array", false, true, "Use Parquet FIXED_LENGTH_BYTE_ARRAY type for FixedString by default"},
|
||||
{"output_format_arrow_fixed_string_as_fixed_byte_array", false, true, "Use Arrow FIXED_SIZE_BINARY type for FixedString by default"},
|
||||
{"query_plan_remove_redundant_distinct", false, true, "Remove redundant Distinct step in query plan"},
|
||||
{"optimize_duplicate_order_by_and_distinct", true, false, "Remove duplicate ORDER BY and DISTINCT if it's possible"},
|
||||
{"insert_keeper_max_retries", 0, 20, "Enable reconnections to Keeper on INSERT, improve reliability"}}},
|
||||
{"23.1", {{"input_format_json_read_objects_as_strings", 0, 1, "Enable reading nested json objects as strings while object type is experimental"},
|
||||
{"input_format_json_defaults_for_missing_elements_in_named_tuple", false, true, "Allow missing elements in JSON objects while reading named tuples by default"},
|
||||
{"input_format_csv_detect_header", false, true, "Detect header in CSV format by default"},
|
||||
{"input_format_tsv_detect_header", false, true, "Detect header in TSV format by default"},
|
||||
{"input_format_custom_detect_header", false, true, "Detect header in CustomSeparated format by default"},
|
||||
{"query_plan_remove_redundant_sorting", false, true, "Remove redundant sorting in query plan. For example, sorting steps related to ORDER BY clauses in subqueries"}}},
|
||||
{"22.12", {{"max_size_to_preallocate_for_aggregation", 10'000'000, 100'000'000, "This optimizes performance"},
|
||||
{"query_plan_aggregation_in_order", 0, 1, "Enable some refactoring around query plan"},
|
||||
{"format_binary_max_string_size", 0, 1_GiB, "Prevent allocating large amount of memory"}}},
|
||||
{"22.11", {{"use_structure_from_insertion_table_in_table_functions", 0, 2, "Improve using structure from insertion table in table functions"}}},
|
||||
{"22.9", {{"force_grouping_standard_compatibility", false, true, "Make GROUPING function output the same as in SQL standard and other DBMS"}}},
|
||||
{"22.7", {{"cross_to_inner_join_rewrite", 1, 2, "Force rewrite comma join to inner"},
|
||||
{"enable_positional_arguments", false, true, "Enable positional arguments feature by default"},
|
||||
{"format_csv_allow_single_quotes", true, false, "Most tools don't treat single quote in CSV specially, don't do it by default too"}}},
|
||||
{"22.6", {{"output_format_json_named_tuples_as_objects", false, true, "Allow to serialize named tuples as JSON objects in JSON formats by default"},
|
||||
{"input_format_skip_unknown_fields", false, true, "Optimize reading subset of columns for some input formats"}}},
|
||||
{"22.5", {{"memory_overcommit_ratio_denominator", 0, 1073741824, "Enable memory overcommit feature by default"},
|
||||
{"memory_overcommit_ratio_denominator_for_user", 0, 1073741824, "Enable memory overcommit feature by default"}}},
|
||||
{"22.4", {{"allow_settings_after_format_in_insert", true, false, "Do not allow SETTINGS after FORMAT for INSERT queries because ClickHouse interpret SETTINGS as some values, which is misleading"}}},
|
||||
{"22.3", {{"cast_ipv4_ipv6_default_on_conversion_error", true, false, "Make functions cast(value, 'IPv4') and cast(value, 'IPv6') behave same as toIPv4 and toIPv6 functions"}}},
|
||||
{"21.12", {{"stream_like_engine_allow_direct_select", true, false, "Do not allow direct select for Kafka/RabbitMQ/FileLog by default"}}},
|
||||
{"21.9", {{"output_format_decimal_trailing_zeros", true, false, "Do not output trailing zeros in text representation of Decimal types by default for better looking output"},
|
||||
{"use_hedged_requests", false, true, "Enable Hedged Requests feature by default"}}},
|
||||
{"21.7", {{"legacy_column_name_of_tuple_literal", true, false, "Add this setting only for compatibility reasons. It makes sense to set to 'true', while doing rolling update of cluster from version lower than 21.7 to higher"}}},
|
||||
{"21.5", {{"async_socket_for_remote", false, true, "Fix all problems and turn on asynchronous reads from socket for remote queries by default again"}}},
|
||||
{"21.3", {{"async_socket_for_remote", true, false, "Turn off asynchronous reads from socket for remote queries because of some problems"},
|
||||
{"optimize_normalize_count_variants", false, true, "Rewrite aggregate functions that semantically equals to count() as count() by default"},
|
||||
{"normalize_function_names", false, true, "Normalize function names to their canonical names, this was needed for projection query routing"}}},
|
||||
{"21.2", {{"enable_global_with_statement", false, true, "Propagate WITH statements to UNION queries and all subqueries by default"}}},
|
||||
{"21.1", {{"insert_quorum_parallel", false, true, "Use parallel quorum inserts by default. It is significantly more convenient to use than sequential quorum inserts"},
|
||||
{"input_format_null_as_default", false, true, "Allow to insert NULL as default for input formats by default"},
|
||||
{"optimize_on_insert", false, true, "Enable data optimization on INSERT by default for better user experience"},
|
||||
{"use_compact_format_in_distributed_parts_names", false, true, "Use compact format for async INSERT into Distributed tables by default"}}},
|
||||
{"20.10", {{"format_regexp_escaping_rule", "Escaped", "Raw", "Use Raw as default escaping rule for Regexp format to male the behaviour more like to what users expect"}}},
|
||||
{"20.7", {{"show_table_uuid_in_table_create_query_if_not_nil", true, false, "Stop showing UID of the table in its CREATE query for Engine=Atomic"}}},
|
||||
{"20.5", {{"input_format_with_names_use_header", false, true, "Enable using header with names for formats with WithNames/WithNamesAndTypes suffixes"},
|
||||
{"allow_suspicious_codecs", true, false, "Don't allow to specify meaningless compression codecs"}}},
|
||||
{"20.4", {{"validate_polygons", false, true, "Throw exception if polygon is invalid in function pointInPolygon by default instead of returning possibly wrong results"}}},
|
||||
{"19.18", {{"enable_scalar_subquery_optimization", false, true, "Prevent scalar subqueries from (de)serializing large scalar values and possibly avoid running the same subquery more than once"}}},
|
||||
{"19.14", {{"any_join_distinct_right_table_keys", true, false, "Disable ANY RIGHT and ANY FULL JOINs by default to avoid inconsistency"}}},
|
||||
{"19.12", {{"input_format_defaults_for_omitted_fields", false, true, "Enable calculation of complex default expressions for omitted fields for some input formats, because it should be the expected behaviour"}}},
|
||||
{"19.5", {{"max_partitions_per_insert_block", 0, 100, "Add a limit for the number of partitions in one block"}}},
|
||||
{"18.12.17", {{"enable_optimize_predicate_expression", 0, 1, "Optimize predicates to subqueries by default"}}},
|
||||
};
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user