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Add db-connect, a SQL over HTTPS server
This commit is contained in:
Ashcon Partovi
282
vendor/github.com/kshvakov/clickhouse/query_settings.go
generated
vendored
Normal file
282
vendor/github.com/kshvakov/clickhouse/query_settings.go
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vendored
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@@ -0,0 +1,282 @@
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package clickhouse
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import (
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"fmt"
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"net/url"
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"strconv"
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"github.com/kshvakov/clickhouse/lib/binary"
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)
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type querySettingType int
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// all possible query setting's data type
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const (
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uintQS querySettingType = iota + 1
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intQS
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boolQS
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timeQS
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)
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// description of single query setting
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type querySettingInfo struct {
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name string
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qsType querySettingType
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}
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// all possible query settings
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var querySettingList = []querySettingInfo{
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{"min_compress_block_size", uintQS},
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{"max_compress_block_size", uintQS},
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{"max_block_size", uintQS},
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{"max_insert_block_size", uintQS},
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{"min_insert_block_size_rows", uintQS},
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{"min_insert_block_size_bytes", uintQS},
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{"max_read_buffer_size", uintQS},
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{"max_distributed_connections", uintQS},
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{"max_query_size", uintQS},
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{"interactive_delay", uintQS},
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{"poll_interval", uintQS},
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{"distributed_connections_pool_size", uintQS},
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{"connections_with_failover_max_tries", uintQS},
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{"background_pool_size", uintQS},
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{"background_schedule_pool_size", uintQS},
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{"replication_alter_partitions_sync", uintQS},
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{"replication_alter_columns_timeout", uintQS},
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{"min_count_to_compile", uintQS},
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{"min_count_to_compile_expression", uintQS},
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{"group_by_two_level_threshold", uintQS},
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{"group_by_two_level_threshold_bytes", uintQS},
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{"aggregation_memory_efficient_merge_threads", uintQS},
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{"max_parallel_replicas", uintQS},
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{"parallel_replicas_count", uintQS},
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{"parallel_replica_offset", uintQS},
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{"merge_tree_min_rows_for_concurrent_read", uintQS},
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{"merge_tree_min_bytes_for_concurrent_read", uintQS},
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{"merge_tree_min_rows_for_seek", uintQS},
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{"merge_tree_min_bytes_for_seek", uintQS},
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{"merge_tree_coarse_index_granularity", uintQS},
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{"merge_tree_max_rows_to_use_cache", uintQS},
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{"merge_tree_max_bytes_to_use_cache", uintQS},
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{"mysql_max_rows_to_insert", uintQS},
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{"optimize_min_equality_disjunction_chain_length", uintQS},
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{"min_bytes_to_use_direct_io", uintQS},
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{"mark_cache_min_lifetime", uintQS},
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{"priority", uintQS},
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{"log_queries_cut_to_length", uintQS},
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{"max_concurrent_queries_for_user", uintQS},
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{"insert_quorum", uintQS},
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{"select_sequential_consistency", uintQS},
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{"table_function_remote_max_addresses", uintQS},
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{"read_backoff_max_throughput", uintQS},
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{"read_backoff_min_events", uintQS},
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{"output_format_pretty_max_rows", uintQS},
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{"output_format_pretty_max_column_pad_width", uintQS},
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{"output_format_parquet_row_group_size", uintQS},
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{"http_headers_progress_interval_ms", uintQS},
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{"input_format_allow_errors_num", uintQS},
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{"preferred_block_size_bytes", uintQS},
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{"max_replica_delay_for_distributed_queries", uintQS},
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{"preferred_max_column_in_block_size_bytes", uintQS},
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{"insert_distributed_timeout", uintQS},
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{"odbc_max_field_size", uintQS},
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{"max_rows_to_read", uintQS},
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{"max_bytes_to_read", uintQS},
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{"max_rows_to_group_by", uintQS},
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{"max_bytes_before_external_group_by", uintQS},
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{"max_rows_to_sort", uintQS},
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{"max_bytes_to_sort", uintQS},
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{"max_bytes_before_external_sort", uintQS},
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{"max_bytes_before_remerge_sort", uintQS},
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{"max_result_rows", uintQS},
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{"max_result_bytes", uintQS},
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{"min_execution_speed", uintQS},
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{"max_execution_speed", uintQS},
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{"min_execution_speed_bytes", uintQS},
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{"max_execution_speed_bytes", uintQS},
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{"max_columns_to_read", uintQS},
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{"max_temporary_columns", uintQS},
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{"max_temporary_non_const_columns", uintQS},
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{"max_subquery_depth", uintQS},
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{"max_pipeline_depth", uintQS},
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{"max_ast_depth", uintQS},
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{"max_ast_elements", uintQS},
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{"max_expanded_ast_elements", uintQS},
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{"readonly", uintQS},
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{"max_rows_in_set", uintQS},
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{"max_bytes_in_set", uintQS},
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{"max_rows_in_join", uintQS},
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{"max_bytes_in_join", uintQS},
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{"max_rows_to_transfer", uintQS},
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{"max_bytes_to_transfer", uintQS},
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{"max_rows_in_distinct", uintQS},
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{"max_bytes_in_distinct", uintQS},
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{"max_memory_usage", uintQS},
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{"max_memory_usage_for_user", uintQS},
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{"max_memory_usage_for_all_queries", uintQS},
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{"max_network_bandwidth", uintQS},
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{"max_network_bytes", uintQS},
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{"max_network_bandwidth_for_user", uintQS},
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{"max_network_bandwidth_for_all_users", uintQS},
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{"low_cardinality_max_dictionary_size", uintQS},
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{"max_fetch_partition_retries_count", uintQS},
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{"http_max_multipart_form_data_size", uintQS},
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{"max_partitions_per_insert_block", uintQS},
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{"network_zstd_compression_level", intQS},
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{"http_zlib_compression_level", intQS},
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{"distributed_ddl_task_timeout", intQS},
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{"extremes", boolQS},
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{"use_uncompressed_cache", boolQS},
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{"replace_running_query", boolQS},
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{"distributed_directory_monitor_batch_inserts", boolQS},
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{"optimize_move_to_prewhere", boolQS},
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{"compile", boolQS},
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{"allow_suspicious_low_cardinality_types", boolQS},
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{"compile_expressions", boolQS},
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{"distributed_aggregation_memory_efficient", boolQS},
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{"skip_unavailable_shards", boolQS},
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{"distributed_group_by_no_merge", boolQS},
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{"optimize_skip_unused_shards", boolQS},
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{"merge_tree_uniform_read_distribution", boolQS},
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{"force_index_by_date", boolQS},
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{"force_primary_key", boolQS},
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{"log_queries", boolQS},
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{"insert_deduplicate", boolQS},
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{"enable_http_compression", boolQS},
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{"http_native_compression_disable_checksumming_on_decompress", boolQS},
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{"output_format_write_statistics", boolQS},
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{"add_http_cors_header", boolQS},
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{"input_format_skip_unknown_fields", boolQS},
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{"input_format_with_names_use_header", boolQS},
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{"input_format_import_nested_json", boolQS},
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{"input_format_defaults_for_omitted_fields", boolQS},
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{"input_format_values_interpret_expressions", boolQS},
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{"output_format_json_quote_64bit_integers", boolQS},
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{"output_format_json_quote_denormals", boolQS},
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{"output_format_json_escape_forward_slashes", boolQS},
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{"output_format_pretty_color", boolQS},
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{"use_client_time_zone", boolQS},
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{"send_progress_in_http_headers", boolQS},
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{"fsync_metadata", boolQS},
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{"join_use_nulls", boolQS},
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{"fallback_to_stale_replicas_for_distributed_queries", boolQS},
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{"insert_distributed_sync", boolQS},
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{"insert_allow_materialized_columns", boolQS},
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{"optimize_throw_if_noop", boolQS},
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{"use_index_for_in_with_subqueries", boolQS},
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{"empty_result_for_aggregation_by_empty_set", boolQS},
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{"allow_distributed_ddl", boolQS},
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{"join_any_take_last_row", boolQS},
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{"format_csv_allow_single_quotes", boolQS},
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{"format_csv_allow_double_quotes", boolQS},
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{"log_profile_events", boolQS},
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{"log_query_settings", boolQS},
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{"log_query_threads", boolQS},
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{"enable_optimize_predicate_expression", boolQS},
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{"low_cardinality_use_single_dictionary_for_part", boolQS},
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{"decimal_check_overflow", boolQS},
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{"prefer_localhost_replica", boolQS},
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{"asterisk_left_columns_only", boolQS},
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{"calculate_text_stack_trace", boolQS},
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{"allow_ddl", boolQS},
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{"parallel_view_processing", boolQS},
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{"enable_debug_queries", boolQS},
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{"enable_unaligned_array_join", boolQS},
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{"low_cardinality_allow_in_native_format", boolQS},
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{"allow_experimental_multiple_joins_emulation", boolQS},
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{"allow_experimental_cross_to_join_conversion", boolQS},
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{"cancel_http_readonly_queries_on_client_close", boolQS},
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{"external_table_functions_use_nulls", boolQS},
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{"allow_experimental_data_skipping_indices", boolQS},
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{"allow_hyperscan", boolQS},
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{"allow_simdjson", boolQS},
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{"connect_timeout", timeQS},
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{"connect_timeout_with_failover_ms", timeQS},
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{"receive_timeout", timeQS},
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{"send_timeout", timeQS},
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{"tcp_keep_alive_timeout", timeQS},
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{"queue_max_wait_ms", timeQS},
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{"distributed_directory_monitor_sleep_time_ms", timeQS},
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{"insert_quorum_timeout", timeQS},
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{"read_backoff_min_latency_ms", timeQS},
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{"read_backoff_min_interval_between_events_ms", timeQS},
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{"stream_flush_interval_ms", timeQS},
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{"stream_poll_timeout_ms", timeQS},
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{"http_connection_timeout", timeQS},
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{"http_send_timeout", timeQS},
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{"http_receive_timeout", timeQS},
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{"max_execution_time", timeQS},
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{"timeout_before_checking_execution_speed", timeQS},
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}
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type querySettingValueEncoder func(enc *binary.Encoder) error
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type querySettings struct {
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settings map[string]querySettingValueEncoder
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settingsStr string // used for debug output
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}
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func makeQuerySettings(query url.Values) (*querySettings, error) {
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qs := &querySettings{
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settings: make(map[string]querySettingValueEncoder),
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settingsStr: "",
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}
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for _, info := range querySettingList {
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valueStr := query.Get(info.name)
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if valueStr == "" {
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continue
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}
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switch info.qsType {
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case uintQS, intQS, timeQS:
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value, err := strconv.ParseUint(valueStr, 10, 64)
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if err != nil {
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return nil, err
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}
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qs.settings[info.name] = func(enc *binary.Encoder) error { return enc.Uvarint(value) }
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case boolQS:
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valueBool, err := strconv.ParseBool(valueStr)
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if err != nil {
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return nil, err
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}
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value := uint64(0)
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if valueBool {
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value = 1
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}
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qs.settings[info.name] = func(enc *binary.Encoder) error { return enc.Uvarint(value) }
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default:
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err := fmt.Errorf("query setting %s has unsupported data type", info.name)
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return nil, err
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}
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if qs.settingsStr != "" {
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qs.settingsStr += "&"
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}
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qs.settingsStr += info.name + "=" + valueStr
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}
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return qs, nil
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}
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func (qs *querySettings) IsEmpty() bool {
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return len(qs.settings) == 0
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}
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func (qs *querySettings) Serialize(enc *binary.Encoder) error {
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for name, fn := range qs.settings {
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if err := enc.String(name); err != nil {
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return err
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}
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if err := fn(enc); err != nil {
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return err
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}
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}
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return nil
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}
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