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ru.yandex.clickhouse.settings.ClickHouseQueryParam Maven / Gradle / Ivy
package ru.yandex.clickhouse.settings;
import java.sql.DriverPropertyInfo;
import java.util.Properties;
public enum ClickHouseQueryParam implements DriverPropertyCreator {
ADD_HTTP_CORS_HEADER("add_http_cors_header", false, Boolean.class, "Write add http CORS header"),
AGGREGATION_MEMORY_EFFICIENT_MERGE_THREADS("aggregation_memory_efficient_merge_threads", null, Long.class, ""),
BACKGROUND_POOL_SIZE("background_pool_size", null, Long.class, ""),
COMPILE("compile", false, Boolean.class, ""),
COMPRESS("compress", true, Boolean.class, "whether to compress transferred data or not"),
CONNECT_TIMEOUT("connect_timeout", null, Integer.class, ""),
CONNECT_TIMEOUT_WITH_FAILOVER_MS("connect_timeout_with_failover_ms", null, Integer.class, ""),
CONNECTIONS_WITH_FAILOVER_MAX_TRIES("connections_with_failover_max_tries", null, Long.class, ""),
COUNT_DISTINCT_IMPLEMENTATION("count_distinct_implementation", null, String.class, "What aggregate function to use for implementation of count(DISTINCT ...)"),
DATABASE("database", null, String.class, "database name used by default"),
DECOMPRESS("decompress", false, Boolean.class, "whether to decompress transferred data or not"),
DISTRIBUTED_AGGREGATION_MEMORY_EFFICIENT("distributed_aggregation_memory_efficient", false, Boolean.class, "Whether to optimize memory consumption for external aggregation"),
DISTRIBUTED_CONNECTIONS_POOL_SIZE("distributed_connections_pool_size", null, Long.class, ""),
DISTRIBUTED_DIRECTORY_MONITOR_SLEEP_TIME_MS("distributed_directory_monitor_sleep_time_ms", null, Long.class, ""),
DISTRIBUTED_GROUP_BY_NO_MERGE("distributed_group_by_no_merge", false, Boolean.class, ""),
DISTRIBUTED_PRODUCT_MODE("distributed_product_mode", null, String.class, ""),
ENABLE_HTTP_COMPRESSION("enable_http_compression", false, Boolean.class, ""),
/**
* https://clickhouse.yandex/reference_en.html#Extreme values
*/
EXTREMES("extremes", false, Boolean.class, "Whether to include extreme values."),
FORCE_INDEX_BY_DATE("force_index_by_date", false, Boolean.class, ""),
FORCE_PRIMARY_KEY("force_primary_key", false, Boolean.class, ""),
GLOBAL_SUBQUERIES_METHOD("global_subqueries_method", null, String.class, ""),
GROUP_BY_TWO_LEVEL_THRESHOLD("group_by_two_level_threshold", null, Long.class, ""),
GROUP_BY_TWO_LEVEL_THRESHOLD_BYTES("group_by_two_level_threshold_bytes", null, Long.class, ""),
HTTP_NATIVE_COMPRESSION_DISABLE_CHECKSUMMING_ON_DECOMPRESS("http_native_compression_disable_checksumming_on_decompress", null, Boolean.class, "Whether to disable checksum check on decompress"),
HTTP_ZLIB_COMPRESSION_LEVEL("http_zlib_compression_level", null, Long.class, ""),
INPUT_FORMAT_SKIP_UNKNOWN_FIELDS("input_format_skip_unknown_fields", false, Boolean.class, "Skip columns with unknown names from input data (it works for JSONEachRow and TSKV formats)."),
INPUT_FORMAT_VALUES_INTERPRET_EXPRESSIONS("input_format_values_interpret_expressions", true, Boolean.class,
"For Values format: if field could not be parsed by streaming parser, run SQL parser and try to interpret it as SQL expression."),
INSERT_QUORUM("insert_quorum", null, Long.class, ""),
INSERT_QUORUM_TIMEOUT("insert_quorum_timeout", null, Long.class, ""),
INTERACTIVE_DELAY("interactive_delay", null, Long.class, ""),
LOAD_BALANCING("load_balancing", null, String.class, ""),
LOG_QUERIES("log_queries", false, Boolean.class, ""),
LOG_QUERIES_CUT_TO_LENGTH("log_queries_cut_to_length", null, Long.class, ""),
MARK_CACHE_MIN_LIFETIME("mark_cache_min_lifetime", null, Long.class, ""),
/**
* https://clickhouse.yandex/reference_en.html#max_block_size
*/
MAX_BLOCK_SIZE("max_block_size", null, Integer.class, "Recommendation for what size of block (in number of rows) to load from tables"),
MAX_BYTES_BEFORE_EXTERNAL_GROUP_BY("max_bytes_before_external_group_by", null, Long.class, "Threshold to use external group by"),
MAX_BYTES_BEFORE_EXTERNAL_SORT("max_bytes_before_external_sort", null, Long.class, "Threshold to use external sort"),
MAX_COMPRESS_BLOCK_SIZE("max_compress_block_size", null, Long.class, ""),
MAX_CONCURRENT_QUERIES_FOR_USER("max_concurrent_queries_for_user", null, Long.class, ""),
MAX_DISTRIBUTED_CONNECTIONS("max_distributed_connections", null, Long.class, ""),
MAX_DISTRIBUTED_PROCESSING_THREADS("max_distributed_processing_threads", null, Long.class, ""),
/**
* https://clickhouse.yandex/reference_en.html#max_execution_time
*/
MAX_EXECUTION_TIME("max_execution_time", null, Integer.class, "Maximum query execution time in seconds."),
MAX_INSERT_BLOCK_SIZE("max_insert_block_size", null, Long.class, ""),
/**
* @see max_memory_usage
*/
MAX_MEMORY_USAGE("max_memory_usage", null, Long.class, "The maximum amount of memory consumption when running a query on a single server."),
//dbms/include/DB/Interpreters/Settings.h
MAX_PARALLEL_REPLICAS("max_parallel_replicas", null, Integer.class, "Max shard replica count."),
MAX_READ_BUFFER_SIZE("max_read_buffer_size", null, Long.class, ""),
MAX_RESULT_ROWS("max_result_rows", null, Integer.class, "Limit on the number of rows in the result. Also checked for subqueries, and on remote servers when running parts of a distributed query."),
/**
* https://clickhouse.yandex/reference_en.html#max_rows_to_group_by
*/
MAX_ROWS_TO_GROUP_BY("max_rows_to_group_by", null, Integer.class,
"Maximum number of unique keys received from aggregation. This setting lets you limit memory consumption when aggregating."),
MAX_STREAMS_TO_MAX_THREADS_RATIO("max_streams_to_max_threads_ratio", null, Double.class, ""),
/**
* https://clickhouse.yandex/reference_en.html#max_threads
*/
MAX_THREADS("max_threads", null, Integer.class, "The maximum number of query processing threads"),
MAX_QUERY_SIZE("max_query_size", null, Long.class, "Maximum size of query"),
MEMORY_TRACKER_FAULT_PROBABILITY("memory_tracker_fault_probability", null, Double.class, ""),
MERGE_TREE_COARSE_INDEX_GRANULARITY("merge_tree_coarse_index_granularity", null, Long.class, ""),
MERGE_TREE_MAX_ROWS_TO_USE_CACHE("merge_tree_max_rows_to_use_cache", null, Long.class, ""),
MERGE_TREE_MIN_ROWS_FOR_CONCURRENT_READ("merge_tree_min_rows_for_concurrent_read", null, Long.class, ""),
MERGE_TREE_MIN_ROWS_FOR_SEEK("merge_tree_min_rows_for_seek", null, Long.class, ""),
MERGE_TREE_UNIFORM_READ_DISTRIBUTION("merge_tree_uniform_read_distribution", true, Boolean.class, ""),
MIN_BYTES_TO_USE_DIRECT_IO("min_bytes_to_use_direct_io", null, Long.class, ""),
MIN_COMPRESS_BLOCK_SIZE("min_compress_block_size", null, Long.class, ""),
MIN_COUNT_TO_COMPILE("min_count_to_compile", null, Long.class, ""),
MIN_INSERT_BLOCK_SIZE_BYTES("min_insert_block_size_bytes", null, Long.class, "Squash blocks passed to INSERT query to specified size in bytes, if blocks are not big enoug"),
MIN_INSERT_BLOCK_SIZE_ROWS("min_insert_block_size_rows", null, Long.class, "Squash blocks passed to INSERT query to specified size in rows, if blocks are not big enough."),
NETWORK_COMPRESSION_METHOD("network_compression_method", null, String.class, ""),
OPTIMIZE_MIN_EQUALITY_DISJUNCTION_CHAIN_LENGTH("optimize_min_equality_disjunction_chain_length", null, Long.class, ""),
OPTIMIZE_MOVE_TO_PREWHERE("optimize_move_to_prewhere", true, Boolean.class, ""),
OUTPUT_FORMAT_JSON_QUOTE_64BIT_INTEGERS("output_format_json_quote_64bit_integers", true, Boolean.class, "Controls quoting of 64-bit integers in JSON output format."),
OUTPUT_FORMAT_PRETTY_MAX_ROWS("output_format_pretty_max_rows", null, Long.class, "Rows limit for Pretty formats."),
OUTPUT_FORMAT_WRITE_STATISTICS("output_format_write_statistics", true, Boolean.class, "Write statistics about read rows, bytes, time elapsed in suitable output formats"),
PARALLEL_REPLICAS_COUNT("parallel_replicas_count", null, Long.class, ""),
PARALLEL_REPLICA_OFFSET("parallel_replica_offset", null, Long.class, ""),
PASSWORD("password", null, String.class, "user password, by default null"),
POLL_INTERVAL("poll_interval", null, Long.class, ""),
PRIORITY("priority", null, Integer.class, "The lower the value the bigger the priority."),
/**
* https://clickhouse.yandex/reference_en.html#Settings profiles
*/
PROFILE("profile", null, String.class, "Settings profile: a collection of settings grouped under the same name"),
RECEIVE_TIMEOUT("receive_timeout", null, Integer.class, ""),
READ_BACKOFF_MAX_THROUGHPUT("read_backoff_max_throughput", null, Long.class, ""),
READ_BACKOFF_MIN_EVENTS("read_backoff_min_events", null, Long.class, ""),
READ_BACKOFF_MIN_INTERVAL_BETWEEN_EVENTS_MS("read_backoff_min_interval_between_events_ms", null, Long.class, ""),
READ_BACKOFF_MIN_LATENCY_MS("read_backoff_min_latency_ms", null, Long.class, ""),
REPLACE_RUNNING_QUERY("replace_running_query", false, Boolean.class, ""),
REPLICATION_ALTER_COLUMNS_TIMEOUT("replication_alter_columns_timeout", null, Long.class, ""),
REPLICATION_ALTER_PARTITIONS_SYNC("replication_alter_partitions_sync", null, Long.class, ""),
RESHARDING_BARRIER_TIMEOUT("resharding_barrier_timeout", null, Long.class, ""),
RESULT_OVERFLOW_MODE("result_overflow_mode", null, String.class, "What to do if the volume of the result exceeds one of the limits: 'throw' or 'break'. By default, throw. Using 'break' is similar to using LIMIT."),
SELECT_SEQUENTIAL_CONSISTENCY("select_sequential_consistency", null, Long.class, ""),
SEND_TIMEOUT("send_timeout", null, Integer.class, ""),
SESSION_CHECK("session_check", false, Boolean.class, ""),
SESSION_ID("session_id", null, String.class, ""),
SESSION_TIMEOUT("session_timeout", null, Long.class, ""),
SKIP_UNAVAILABLE_SHARDS("skip_unavailable_shards", false, Boolean.class, ""),
STRICT_INSERT_DEFAULTS("strict_insert_defaults", false, Boolean.class, ""),
TABLE_FUNCTION_REMOTE_MAX_ADDRESSES("table_function_remote_max_addresses", null, Long.class, ""),
TOTALS_AUTO_THRESHOLD("totals_auto_threshold", null, Double.class, ""),
/**
* https://clickhouse.yandex/reference_en.html#WITH TOTALS modifier
*/
TOTALS_MODE("totals_mode", null, String.class, "How to calculate TOTALS when HAVING is present, as well as when max_rows_to_group_by and group_by_overflow_mode = 'any' are present."),
QUERY_ID("query_id", null, String.class, ""),
QUEUE_MAX_WAIT_MS("queue_max_wait_ms", null, Integer.class, ""),
QUOTA_KEY("quota_key", null, String.class, "quota is calculated for each quota_key value. For example here may be some user name."),
use_client_time_zone("use_client_time_zone", false, Boolean.class, ""),
USE_UNCOMPRESSED_CACHE("use_uncompressed_cache", true, Boolean.class, "Use client timezone for interpreting DateTime string values, instead of adopting server timezone."),
USER("user", null, String.class, "user name, by default - default"),
PREFERRED_BLOCK_SIZE_BYTES("preferred_block_size_bytes", null, Long.class, "Adaptively estimates number of required rows in a block."),;
private final String key;
private final Object defaultValue;
private final Class clazz;
private final String description;
ClickHouseQueryParam(String key, T defaultValue, Class clazz, String description) {
this.key = key;
this.defaultValue = defaultValue;
this.clazz = clazz;
this.description = description;
}
public String getKey() {
return key;
}
public Object getDefaultValue() {
return defaultValue;
}
public Class getClazz() {
return clazz;
}
public String getDescription() {
return description;
}
@Override
public String toString() {
return name().toLowerCase();
}
public DriverPropertyInfo createDriverPropertyInfo(Properties properties) {
DriverPropertyInfo propertyInfo = new DriverPropertyInfo(key, driverPropertyValue(properties));
propertyInfo.required = false;
propertyInfo.description = description;
propertyInfo.choices = driverPropertyInfoChoices();
return propertyInfo;
}
private String[] driverPropertyInfoChoices() {
return clazz == Boolean.class || clazz == Boolean.TYPE ? new String[]{"true", "false"} : null;
}
private String driverPropertyValue(Properties properties) {
String value = properties.getProperty(key);
if (value == null) {
value = defaultValue == null ? null : defaultValue.toString();
}
return value;
}
}
