Preview a transform | Elasticsearch API (v8)

Preview a transform Added in 7.2.0

GET /_transform/{transform_id}/_preview

Generates a preview of the results that you will get when you create a transform with the same configuration.

It returns a maximum of 100 results. The calculations are based on all the current data in the source index. It also generates a list of mappings and settings for the destination index. These values are determined based on the field types of the source index and the transform aggregations.

Path parameters

transform_id string Required

Identifier for the transform to preview. If you specify this path parameter, you cannot provide transform configuration details in the request body.

Query parameters

timeout string

Period to wait for a response. If no response is received before the timeout expires, the request fails and returns an error.

application/json

Body

dest object

Additional properties are allowed.
Hide dest attributes Show dest attributes object
- index string
- pipeline string
  
  The unique identifier for an ingest pipeline.
description string

Free text description of the transform.
frequency string

A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
pivot object

Additional properties are allowed.
Hide pivot attributes Show pivot attributes object
- aggregations object
  
  Defines how to aggregate the grouped data. The following aggregations are currently supported: average, bucket script, bucket selector, cardinality, filter, geo bounds, geo centroid, geo line, max, median absolute deviation, min, missing, percentiles, rare terms, scripted metric, stats, sum, terms, top metrics, value count, weighted average.
- group_by object
  
  Defines how to group the data. More than one grouping can be defined per pivot. The following groupings are currently supported: date histogram, geotile grid, histogram, terms.
  Hide group_by attribute Show group_by attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  Hide * attributes Show * attributes object
  
  date_histogram object
  
  Additional properties are allowed.
  
  Hide date_histogram attributes Show date_histogram attributes object
  
  calendar_interval string
  
  Values are second, 1s, minute, 1m, hour, 1h, day, 1d, week, 1w, month, 1M, quarter, 1q, year, or 1y.
  
  extended_bounds object
  
  Additional properties are allowed.
  
  Hide extended_bounds attributes Show extended_bounds attributes object
  
  max
  
  min
  
  hard_bounds object
  
  Additional properties are allowed.
  
  Hide hard_bounds attributes Show hard_bounds attributes object
  
  max
  
  min
  
  field string
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  fixed_interval string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  format string
  
  The date format used to format key_as_string in the response. If no format is specified, the first date format specified in the field mapping is used.
  
  interval string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  min_doc_count number
  
  Only returns buckets that have min_doc_count number of documents. By default, all buckets between the first bucket that matches documents and the last one are returned.
  
  missing string
  
  offset string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  order object | array[object]
  
  One of:
  aggregations:AggregateOrder object aggregations:AggregateOrder array[object]
  
  params object
  
  Hide params attribute Show params attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  script object
  
  Additional properties are allowed.
  
  Hide script attributes Show script attributes object
  
  source string
  
  The script source.
  
  id string
  
  params object
  
  Specifies any named parameters that are passed into the script as variables. Use parameters instead of hard-coded values to decrease compile time.
  
  lang
  
  options object
  
  time_zone string
  
  keyed boolean
  
  Set to true to associate a unique string key with each bucket and return the ranges as a hash rather than an array.
  
  geotile_grid object
  
  Additional properties are allowed.
  
  Hide geotile_grid attributes Show geotile_grid attributes object
  
  field string
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  precision number
  
  shard_size number
  
  Allows for more accurate counting of the top cells returned in the final result the aggregation. Defaults to returning max(10,(size x number-of-shards)) buckets from each shard.
  
  size number
  
  The maximum number of buckets to return.
  
  bounds object
  
  A geo bounding box. It can be represented in various ways:
  
  as 4 top/bottom/left/right coordinates
  
  as 2 top_left / bottom_right points
  
  as 2 top_right / bottom_left points
  
  as a WKT bounding box
  
  One of:
  _types:CoordsGeoBounds object _types:TopLeftBottomRightGeoBounds object _types:TopRightBottomLeftGeoBounds object _types:WktGeoBounds object
  
  Additional properties are allowed.
  
  Additional properties are allowed.
  
  Additional properties are allowed.
  
  Additional properties are allowed.
  
  histogram object
  
  Additional properties are allowed.
  
  Hide histogram attributes Show histogram attributes object
  
  extended_bounds object
  
  Additional properties are allowed.
  
  Hide extended_bounds attributes Show extended_bounds attributes object
  
  max number
  
  Maximum value for the bound.
  
  min number
  
  Minimum value for the bound.
  
  hard_bounds object
  
  Additional properties are allowed.
  
  Hide hard_bounds attributes Show hard_bounds attributes object
  
  max number
  
  Maximum value for the bound.
  
  min number
  
  Minimum value for the bound.
  
  field string
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  interval number
  
  The interval for the buckets. Must be a positive decimal.
  
  min_doc_count number
  
  Only returns buckets that have min_doc_count number of documents. By default, the response will fill gaps in the histogram with empty buckets.
  
  missing number
  
  The value to apply to documents that do not have a value. By default, documents without a value are ignored.
  
  offset number
  
  By default, the bucket keys start with 0 and then continue in even spaced steps of interval. The bucket boundaries can be shifted by using the offset option.
  
  order object | array[object]
  
  One of:
  aggregations:AggregateOrder object aggregations:AggregateOrder array[object]
  
  script object
  
  Additional properties are allowed.
  
  Hide script attributes Show script attributes object
  
  source string
  
  The script source.
  
  id string
  
  params object
  
  Specifies any named parameters that are passed into the script as variables. Use parameters instead of hard-coded values to decrease compile time.
  
  lang
  
  options object
  
  format string
  
  keyed boolean
  
  If true, returns buckets as a hash instead of an array, keyed by the bucket keys.
  
  terms
source object

Additional properties are allowed.
Hide source attributes Show source attributes object
- index string | array[string] Required
- runtime_mappings object
  Hide runtime_mappings attribute Show runtime_mappings attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  Hide * attributes Show * attributes object
  
  fields object
  
  For type composite
  
  Hide fields attribute Show fields attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  Hide * attribute Show * attribute object
  
  type string Required
  
  Values are boolean, composite, date, double, geo_point, ip, keyword, long, or lookup.
  
  fetch_fields array[object]
  
  For type lookup
  
  Hide fetch_fields attributes Show fetch_fields attributes object
  
  field string Required
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  format string
  
  format string
  
  A custom format for date type runtime fields.
  
  input_field string
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  target_field string
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  target_index string
  
  script object
  
  Additional properties are allowed.
  
  Hide script attributes Show script attributes object
  
  source string
  
  The script source.
  
  id string
  
  params object
  
  Specifies any named parameters that are passed into the script as variables. Use parameters instead of hard-coded values to decrease compile time.
  
  Hide params attribute Show params attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  lang string
  
  Any of:
  _types:ScriptLanguage string _types:ScriptLanguage string
  
  Values are painless, expression, mustache, or java.
  
  options object
  
  Hide options attribute Show options attribute object
  
  * string Additional properties
  
  type string Required
  
  Values are boolean, composite, date, double, geo_point, ip, keyword, long, or lookup.
- query object
  
  A query clause that retrieves a subset of data from the source index.
  
  Additional properties are allowed.
  
  Query DSL
settings object

Additional properties are allowed.
Hide settings attributes Show settings attributes object
- align_checkpoints boolean
  
  Specifies whether the transform checkpoint ranges should be optimized for performance. Such optimization can align checkpoint ranges with the date histogram interval when date histogram is specified as a group source in the transform config. As a result, less document updates in the destination index will be performed thus improving overall performance.
- dates_as_epoch_millis boolean
  
  Defines if dates in the ouput should be written as ISO formatted string or as millis since epoch. epoch_millis was the default for transforms created before version 7.11. For compatible output set this value to true.
- deduce_mappings boolean
  
  Specifies whether the transform should deduce the destination index mappings from the transform configuration.
- docs_per_second number
  
  Specifies a limit on the number of input documents per second. This setting throttles the transform by adding a wait time between search requests. The default value is null, which disables throttling.
- max_page_search_size number
  
  Defines the initial page size to use for the composite aggregation for each checkpoint. If circuit breaker exceptions occur, the page size is dynamically adjusted to a lower value. The minimum value is 10 and the maximum is 65,536.
- unattended boolean
  
  If true, the transform runs in unattended mode. In unattended mode, the transform retries indefinitely in case of an error which means the transform never fails. Setting the number of retries other than infinite fails in validation.
sync object

Additional properties are allowed.
Hide sync attribute Show sync attribute object
- time object
  
  Additional properties are allowed.
  Hide time attributes Show time attributes object
  
  delay string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  field string Required
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
retention_policy object

Additional properties are allowed.
Hide retention_policy attribute Show retention_policy attribute object
- time object
  
  Additional properties are allowed.
  Hide time attributes Show time attributes object
  
  field string Required
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  max_age string Required
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
latest object

Additional properties are allowed.
Hide latest attributes Show latest attributes object
- sort string Required
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
- unique_key array[string] Required
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.

Responses

200 application/json
Hide response attributes Show response attributes object
- generated_dest_index object Required
  
  Additional properties are allowed.
  
  Hide generated_dest_index attributes Show generated_dest_index attributes object
  
  aliases object
  
  Hide aliases attribute Show aliases attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  Hide * attributes Show * attributes object
  
  filter object
  
  Additional properties are allowed.
  
  External documentation
  
  index_routing string
  
  is_hidden boolean
  
  If true, the alias is hidden. All indices for the alias must have the same is_hidden value.
  
  is_write_index boolean
  
  If true, the index is the write index for the alias.
  
  routing string
  
  search_routing string
  
  mappings object
  
  Additional properties are allowed.
  
  Hide mappings attributes Show mappings attributes object
  
  all_field object
  
  Additional properties are allowed.
  
  Hide all_field attributes Show all_field attributes object
  
  analyzer string Required
  
  enabled boolean Required
  
  omit_norms boolean Required
  
  search_analyzer string Required
  
  similarity string Required
  
  store boolean Required
  
  store_term_vector_offsets boolean Required
  
  store_term_vector_payloads boolean Required
  
  store_term_vector_positions boolean Required
  
  store_term_vectors boolean Required
  
  date_detection boolean
  
  dynamic string
  
  Values are strict, runtime, true, or false.
  
  dynamic_date_formats array[string]
  
  dynamic_templates array[object]
  
  _field_names object
  
  Additional properties are allowed.
  
  Hide _field_names attribute Show _field_names attribute object
  
  enabled boolean Required
  
  index_field object
  
  Additional properties are allowed.
  
  Hide index_field attribute Show index_field attribute object
  
  enabled boolean Required
  
  _meta object
  
  Hide _meta attribute Show _meta attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  numeric_detection boolean
  
  properties object
  
  _routing object
  
  Additional properties are allowed.
  
  Hide _routing attribute Show _routing attribute object
  
  required boolean Required
  
  _size object
  
  Additional properties are allowed.
  
  Hide _size attribute Show _size attribute object
  
  enabled boolean Required
  
  _source object
  
  Additional properties are allowed.
  
  Hide _source attributes Show _source attributes object
  
  compress boolean
  
  compress_threshold string
  
  enabled boolean
  
  excludes array[string]
  
  includes array[string]
  
  mode string
  
  Values are disabled, stored, or synthetic.
  
  runtime object
  
  Hide runtime attribute Show runtime attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  Hide * attributes Show * attributes object
  
  fields object
  
  For type composite
  
  Hide fields attribute Show fields attribute object
  
  * object Additional properties
  
  Additional properties are allowed.
  
  fetch_fields array[object]
  
  For type lookup
  
  Additional properties are allowed.
  
  format string
  
  A custom format for date type runtime fields.
  
  input_field string
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  target_field string
  
  Path to field or array of paths. Some API's support wildcards in the path to select multiple fields.
  
  target_index string
  
  script object
  
  Additional properties are allowed.
  
  Hide script attributes Show script attributes object
  
  source string
  
  The script source.
  
  id string
  
  params object
  
  Specifies any named parameters that are passed into the script as variables. Use parameters instead of hard-coded values to decrease compile time.
  
  lang
  
  options object
  
  type string Required
  
  Values are boolean, composite, date, double, geo_point, ip, keyword, long, or lookup.
  
  enabled boolean
  
  subobjects boolean
  
  _data_stream_timestamp object
  
  Additional properties are allowed.
  
  Hide _data_stream_timestamp attribute Show _data_stream_timestamp attribute object
  
  enabled boolean Required
  
  settings object Additional properties
  
  Additional properties are allowed.
  
  Hide settings attributes Show settings attributes object
  
  index object Additional properties
  
  Additional properties are allowed.
  
  mode string
  
  routing_path string | array[string]
  
  One of:
  string-1 string array-2 array[string]
  
  soft_deletes object
  
  Additional properties are allowed.
  
  Hide soft_deletes attributes Show soft_deletes attributes object
  
  enabled boolean
  
  Indicates whether soft deletes are enabled on the index.
  
  retention_lease object
  
  Additional properties are allowed.
  
  Hide retention_lease attribute Show retention_lease attribute object
  
  period string Required
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  sort object
  
  Additional properties are allowed.
  
  Hide sort attributes Show sort attributes object
  
  field string | array[string]
  
  order string | array[string]
  
  One of:
  _types:SegmentSortOrder string array-2 array[string]
  
  Values are asc, ASC, desc, or DESC.
  
  Values are asc, ASC, desc, or DESC.
  
  mode string | array[string]
  
  One of:
  _types:SegmentSortMode string array-2 array[string]
  
  Values are min, MIN, max, or MAX.
  
  Values are min, MIN, max, or MAX.
  
  missing string | array[string]
  
  One of:
  _types:SegmentSortMissing string array-2 array[string]
  
  Values are _last or _first.
  
  Values are _last or _first.
  
  number_of_shards number | string
  
  One of:
  number-1 number string-2 string
  
  number_of_replicas number | string
  
  One of:
  number-1 number string-2 string
  
  number_of_routing_shards number
  
  check_on_startup string
  
  Values are true, false, or checksum.
  
  codec string
  
  routing_partition_size number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  load_fixed_bitset_filters_eagerly boolean
  
  hidden boolean | string
  
  One of:
  boolean-1 boolean string-2 string
  
  auto_expand_replicas string
  
  merge object
  
  Additional properties are allowed.
  
  Hide merge attribute Show merge attribute object
  
  scheduler object
  
  Additional properties are allowed.
  
  Hide scheduler attributes Show scheduler attributes object
  
  max_thread_count number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  max_merge_count number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  search object
  
  Additional properties are allowed.
  
  Hide search attributes Show search attributes object
  
  idle object
  
  Additional properties are allowed.
  
  Hide idle attribute Show idle attribute object
  
  after string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  slowlog object
  
  Additional properties are allowed.
  
  Hide slowlog attributes Show slowlog attributes object
  
  level string
  
  source number
  
  reformat boolean
  
  threshold object
  
  Additional properties are allowed.
  
  Hide threshold attributes Show threshold attributes object
  
  query object
  
  Additional properties are allowed.
  
  fetch object
  
  Additional properties are allowed.
  
  refresh_interval string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  max_result_window number
  
  max_inner_result_window number
  
  max_rescore_window number
  
  max_docvalue_fields_search number
  
  max_script_fields number
  
  max_ngram_diff number
  
  max_shingle_diff number
  
  blocks object
  
  Additional properties are allowed.
  
  Hide blocks attributes Show blocks attributes object
  
  read_only boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  read_only_allow_delete boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  read boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  write boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  metadata boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  max_refresh_listeners number
  
  analyze object
  
  Additional properties are allowed.
  
  Hide analyze attribute Show analyze attribute object
  
  max_token_count number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  highlight object
  
  Additional properties are allowed.
  
  Hide highlight attribute Show highlight attribute object
  
  max_analyzed_offset number
  
  max_terms_count number
  
  max_regex_length number
  
  routing object
  
  Additional properties are allowed.
  
  Hide routing attributes Show routing attributes object
  
  allocation object
  
  Additional properties are allowed.
  
  Hide allocation attributes Show allocation attributes object
  
  enable string
  
  Values are all, primaries, new_primaries, or none.
  
  include object
  
  Additional properties are allowed.
  
  Hide include attributes Show include attributes object
  
  _tier_preference string
  
  _id string
  
  initial_recovery object
  
  Additional properties are allowed.
  
  Hide initial_recovery attribute Show initial_recovery attribute object
  
  _id string
  
  disk object
  
  Additional properties are allowed.
  
  Hide disk attribute Show disk attribute object
  
  threshold_enabled
  
  rebalance object
  
  Additional properties are allowed.
  
  Hide rebalance attribute Show rebalance attribute object
  
  enable string Required
  
  Values are all, primaries, replicas, or none.
  
  gc_deletes string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  default_pipeline string
  
  final_pipeline string
  
  lifecycle object
  
  Additional properties are allowed.
  
  Hide lifecycle attributes Show lifecycle attributes object
  
  name string
  
  indexing_complete boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  origination_date number
  
  If specified, this is the timestamp used to calculate the index age for its phase transitions. Use this setting if you create a new index that contains old data and want to use the original creation date to calculate the index age. Specified as a Unix epoch value in milliseconds.
  
  parse_origination_date boolean
  
  Set to true to parse the origination date from the index name. This origination date is used to calculate the index age for its phase transitions. The index name must match the pattern ^{.*-{date_format}-\d+,} where the date_format is yyyy.MM.dd and the trailing digits are optional. An index that was rolled over would normally match the full format, for example logs-2016.10.31-000002). If the index name doesn’t match the pattern, index creation fails.
  
  step object
  
  Additional properties are allowed.
  
  Hide step attribute Show step attribute object
  
  wait_time_threshold string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  rollover_alias string
  
  The index alias to update when the index rolls over. Specify when using a policy that contains a rollover action. When the index rolls over, the alias is updated to reflect that the index is no longer the write index. For more information about rolling indices, see Rollover.
  
  provided_name string
  
  creation_date number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _types:UnitMillis number _spec_utils:StringifiedEpochTimeUnitMillis string
  
  Time unit for milliseconds
  
  creation_date_string string | number
  
  A date and time, either as a string whose format can depend on the context (defaulting to ISO 8601), or a number of milliseconds since the Epoch. Elasticsearch accepts both as input, but will generally output a string representation.
  
  One of:
  _types:DateTime string _types:UnitMillis number
  
  Time unit for milliseconds
  
  uuid string
  
  version object
  
  Additional properties are allowed.
  
  Hide version attributes Show version attributes object
  
  created string
  
  created_string string
  
  verified_before_close boolean | string
  
  One of:
  boolean-1 boolean string-2 string
  
  format string | number
  
  One of:
  string-1 string number-2 number
  
  max_slices_per_scroll number
  
  translog object
  
  Additional properties are allowed.
  
  Hide translog attributes Show translog attributes object
  
  sync_interval string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  durability string
  
  Values are request, REQUEST, async, or ASYNC.
  
  flush_threshold_size number | string
  
  One of:
  _types:ByteSize number _types:ByteSize string
  
  retention object
  
  Additional properties are allowed.
  
  Hide retention attributes Show retention attributes object
  
  size number | string
  
  One of:
  _types:ByteSize number _types:ByteSize string
  
  age string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  query_string object
  
  Additional properties are allowed.
  
  Hide query_string attribute Show query_string attribute object
  
  lenient boolean | string Required
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  priority number | string
  
  One of:
  number-1 number string-2 string
  
  top_metrics_max_size number
  
  analysis object
  
  Additional properties are allowed.
  
  Hide analysis attributes Show analysis attributes object
  
  analyzer object
  
  char_filter object
  
  filter object
  
  normalizer object
  
  tokenizer object
  
  settings object Additional properties
  
  Additional properties are allowed.
  
  time_series object
  
  Additional properties are allowed.
  
  Hide time_series attributes Show time_series attributes object
  
  end_time string | number
  
  A date and time, either as a string whose format can depend on the context (defaulting to ISO 8601), or a number of milliseconds since the Epoch. Elasticsearch accepts both as input, but will generally output a string representation.
  
  One of:
  _types:DateTime string _types:UnitMillis number
  
  Time unit for milliseconds
  
  start_time string | number
  
  A date and time, either as a string whose format can depend on the context (defaulting to ISO 8601), or a number of milliseconds since the Epoch. Elasticsearch accepts both as input, but will generally output a string representation.
  
  One of:
  _types:DateTime string _types:UnitMillis number
  
  Time unit for milliseconds
  
  queries object
  
  Additional properties are allowed.
  
  Hide queries attribute Show queries attribute object
  
  cache object
  
  Additional properties are allowed.
  
  Hide cache attribute Show cache attribute object
  
  enabled boolean Required
  
  similarity object
  
  Configure custom similarity settings to customize how search results are scored.
  
  mapping object
  
  Additional properties are allowed.
  
  Hide mapping attributes Show mapping attributes object
  
  coerce boolean
  
  total_fields object
  
  Additional properties are allowed.
  
  Hide total_fields attributes Show total_fields attributes object
  
  limit number
  
  The maximum number of fields in an index. Field and object mappings, as well as field aliases count towards this limit. The limit is in place to prevent mappings and searches from becoming too large. Higher values can lead to performance degradations and memory issues, especially in clusters with a high load or few resources.
  
  ignore_dynamic_beyond_limit boolean
  
  This setting determines what happens when a dynamically mapped field would exceed the total fields limit. When set to false (the default), the index request of the document that tries to add a dynamic field to the mapping will fail with the message Limit of total fields [X] has been exceeded. When set to true, the index request will not fail. Instead, fields that would exceed the limit are not added to the mapping, similar to dynamic: false. The fields that were not added to the mapping will be added to the _ignored field.
  
  depth object
  
  Additional properties are allowed.
  
  Hide depth attribute Show depth attribute object
  
  limit number
  
  The maximum depth for a field, which is measured as the number of inner objects. For instance, if all fields are defined at the root object level, then the depth is 1. If there is one object mapping, then the depth is 2, etc.
  
  nested_fields object
  
  Additional properties are allowed.
  
  Hide nested_fields attribute Show nested_fields attribute object
  
  limit number
  
  The maximum number of distinct nested mappings in an index. The nested type should only be used in special cases, when arrays of objects need to be queried independently of each other. To safeguard against poorly designed mappings, this setting limits the number of unique nested types per index.
  
  nested_objects object
  
  Additional properties are allowed.
  
  Hide nested_objects attribute Show nested_objects attribute object
  
  limit number
  
  The maximum number of nested JSON objects that a single document can contain across all nested types. This limit helps to prevent out of memory errors when a document contains too many nested objects.
  
  field_name_length object
  
  Additional properties are allowed.
  
  Hide field_name_length attribute Show field_name_length attribute object
  
  limit number
  
  Setting for the maximum length of a field name. This setting isn’t really something that addresses mappings explosion but might still be useful if you want to limit the field length. It usually shouldn’t be necessary to set this setting. The default is okay unless a user starts to add a huge number of fields with really long names. Default is Long.MAX_VALUE (no limit).
  
  dimension_fields object
  
  Additional properties are allowed.
  
  Hide dimension_fields attribute Show dimension_fields attribute object
  
  limit number
  
  [preview] This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
  
  ignore_malformed boolean
  
  indexing.slowlog object
  
  Additional properties are allowed.
  
  Hide indexing.slowlog attributes Show indexing.slowlog attributes object
  
  level string
  
  source number
  
  reformat boolean
  
  threshold object
  
  Additional properties are allowed.
  
  Hide threshold attribute Show threshold attribute object
  
  index object
  
  Additional properties are allowed.
  
  Hide index attributes Show index attributes object
  
  warn string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  info string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  debug string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  trace string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  indexing_pressure object
  
  Additional properties are allowed.
  
  Hide indexing_pressure attribute Show indexing_pressure attribute object
  
  memory object Required
  
  Additional properties are allowed.
  
  Hide memory attribute Show memory attribute object
  
  limit number
  
  Number of outstanding bytes that may be consumed by indexing requests. When this limit is reached or exceeded, the node will reject new coordinating and primary operations. When replica operations consume 1.5x this limit, the node will reject new replica operations. Defaults to 10% of the heap.
  
  store object
  
  Additional properties are allowed.
  
  Hide store attributes Show store attributes object
  
  type string Required
  
  Any of:
  _types:StorageType string _types:StorageType string
  
  Values are fs, niofs, mmapfs, or hybridfs.
  
  allow_mmap boolean
  
  You can restrict the use of the mmapfs and the related hybridfs store type via the setting node.store.allow_mmap. This is a boolean setting indicating whether or not memory-mapping is allowed. The default is to allow it. This setting is useful, for example, if you are in an environment where you can not control the ability to create a lot of memory maps so you need disable the ability to use memory-mapping.
  
  defaults object Additional properties
  
  Additional properties are allowed.
  
  Hide defaults attributes Show defaults attributes object
  
  index object Additional properties
  
  Additional properties are allowed.
  
  mode string
  
  routing_path string | array[string]
  
  One of:
  string-1 string array-2 array[string]
  
  soft_deletes object
  
  Additional properties are allowed.
  
  Hide soft_deletes attributes Show soft_deletes attributes object
  
  enabled boolean
  
  Indicates whether soft deletes are enabled on the index.
  
  retention_lease object
  
  Additional properties are allowed.
  
  Hide retention_lease attribute Show retention_lease attribute object
  
  period string Required
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  sort object
  
  Additional properties are allowed.
  
  Hide sort attributes Show sort attributes object
  
  field string | array[string]
  
  order string | array[string]
  
  One of:
  _types:SegmentSortOrder string array-2 array[string]
  
  Values are asc, ASC, desc, or DESC.
  
  Values are asc, ASC, desc, or DESC.
  
  mode string | array[string]
  
  One of:
  _types:SegmentSortMode string array-2 array[string]
  
  Values are min, MIN, max, or MAX.
  
  Values are min, MIN, max, or MAX.
  
  missing string | array[string]
  
  One of:
  _types:SegmentSortMissing string array-2 array[string]
  
  Values are _last or _first.
  
  Values are _last or _first.
  
  number_of_shards number | string
  
  One of:
  number-1 number string-2 string
  
  number_of_replicas number | string
  
  One of:
  number-1 number string-2 string
  
  number_of_routing_shards number
  
  check_on_startup string
  
  Values are true, false, or checksum.
  
  codec string
  
  routing_partition_size number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  load_fixed_bitset_filters_eagerly boolean
  
  hidden boolean | string
  
  One of:
  boolean-1 boolean string-2 string
  
  auto_expand_replicas string
  
  merge object
  
  Additional properties are allowed.
  
  Hide merge attribute Show merge attribute object
  
  scheduler object
  
  Additional properties are allowed.
  
  Hide scheduler attributes Show scheduler attributes object
  
  max_thread_count number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  max_merge_count number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  search object
  
  Additional properties are allowed.
  
  Hide search attributes Show search attributes object
  
  idle object
  
  Additional properties are allowed.
  
  Hide idle attribute Show idle attribute object
  
  after string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  slowlog object
  
  Additional properties are allowed.
  
  Hide slowlog attributes Show slowlog attributes object
  
  level string
  
  source number
  
  reformat boolean
  
  threshold object
  
  Additional properties are allowed.
  
  Hide threshold attributes Show threshold attributes object
  
  query object
  
  Additional properties are allowed.
  
  fetch object
  
  Additional properties are allowed.
  
  refresh_interval string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  max_result_window number
  
  max_inner_result_window number
  
  max_rescore_window number
  
  max_docvalue_fields_search number
  
  max_script_fields number
  
  max_ngram_diff number
  
  max_shingle_diff number
  
  blocks object
  
  Additional properties are allowed.
  
  Hide blocks attributes Show blocks attributes object
  
  read_only boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  read_only_allow_delete boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  read boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  write boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  metadata boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  max_refresh_listeners number
  
  analyze object
  
  Additional properties are allowed.
  
  Hide analyze attribute Show analyze attribute object
  
  max_token_count number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedinteger number _spec_utils:Stringifiedinteger string
  
  highlight object
  
  Additional properties are allowed.
  
  Hide highlight attribute Show highlight attribute object
  
  max_analyzed_offset number
  
  max_terms_count number
  
  max_regex_length number
  
  routing object
  
  Additional properties are allowed.
  
  Hide routing attributes Show routing attributes object
  
  allocation object
  
  Additional properties are allowed.
  
  Hide allocation attributes Show allocation attributes object
  
  enable string
  
  Values are all, primaries, new_primaries, or none.
  
  include object
  
  Additional properties are allowed.
  
  Hide include attributes Show include attributes object
  
  _tier_preference string
  
  _id string
  
  initial_recovery object
  
  Additional properties are allowed.
  
  Hide initial_recovery attribute Show initial_recovery attribute object
  
  _id string
  
  disk object
  
  Additional properties are allowed.
  
  Hide disk attribute Show disk attribute object
  
  threshold_enabled
  
  rebalance object
  
  Additional properties are allowed.
  
  Hide rebalance attribute Show rebalance attribute object
  
  enable string Required
  
  Values are all, primaries, replicas, or none.
  
  gc_deletes string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  default_pipeline string
  
  final_pipeline string
  
  lifecycle object
  
  Additional properties are allowed.
  
  Hide lifecycle attributes Show lifecycle attributes object
  
  name string
  
  indexing_complete boolean | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  origination_date number
  
  If specified, this is the timestamp used to calculate the index age for its phase transitions. Use this setting if you create a new index that contains old data and want to use the original creation date to calculate the index age. Specified as a Unix epoch value in milliseconds.
  
  parse_origination_date boolean
  
  Set to true to parse the origination date from the index name. This origination date is used to calculate the index age for its phase transitions. The index name must match the pattern ^{.*-{date_format}-\d+,} where the date_format is yyyy.MM.dd and the trailing digits are optional. An index that was rolled over would normally match the full format, for example logs-2016.10.31-000002). If the index name doesn’t match the pattern, index creation fails.
  
  step object
  
  Additional properties are allowed.
  
  Hide step attribute Show step attribute object
  
  wait_time_threshold string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  rollover_alias string
  
  The index alias to update when the index rolls over. Specify when using a policy that contains a rollover action. When the index rolls over, the alias is updated to reflect that the index is no longer the write index. For more information about rolling indices, see Rollover.
  
  provided_name string
  
  creation_date number | string
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _types:UnitMillis number _spec_utils:StringifiedEpochTimeUnitMillis string
  
  Time unit for milliseconds
  
  creation_date_string string | number
  
  A date and time, either as a string whose format can depend on the context (defaulting to ISO 8601), or a number of milliseconds since the Epoch. Elasticsearch accepts both as input, but will generally output a string representation.
  
  One of:
  _types:DateTime string _types:UnitMillis number
  
  Time unit for milliseconds
  
  uuid string
  
  version object
  
  Additional properties are allowed.
  
  Hide version attributes Show version attributes object
  
  created string
  
  created_string string
  
  verified_before_close boolean | string
  
  One of:
  boolean-1 boolean string-2 string
  
  format string | number
  
  One of:
  string-1 string number-2 number
  
  max_slices_per_scroll number
  
  translog object
  
  Additional properties are allowed.
  
  Hide translog attributes Show translog attributes object
  
  sync_interval string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  durability string
  
  Values are request, REQUEST, async, or ASYNC.
  
  flush_threshold_size number | string
  
  One of:
  _types:ByteSize number _types:ByteSize string
  
  retention object
  
  Additional properties are allowed.
  
  Hide retention attributes Show retention attributes object
  
  size number | string
  
  One of:
  _types:ByteSize number _types:ByteSize string
  
  age string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  query_string object
  
  Additional properties are allowed.
  
  Hide query_string attribute Show query_string attribute object
  
  lenient boolean | string Required
  
  Some APIs will return values such as numbers also as a string (notably epoch timestamps). This behavior is used to capture this behavior while keeping the semantics of the field type.
  
  Depending on the target language, code generators can keep the union or remove it and leniently parse strings to the target type.
  
  One of:
  _spec_utils:Stringifiedboolean boolean _spec_utils:Stringifiedboolean string
  
  priority number | string
  
  One of:
  number-1 number string-2 string
  
  top_metrics_max_size number
  
  analysis object
  
  Additional properties are allowed.
  
  Hide analysis attributes Show analysis attributes object
  
  analyzer object
  
  char_filter object
  
  filter object
  
  normalizer object
  
  tokenizer object
  
  settings object Additional properties
  
  Additional properties are allowed.
  
  time_series object
  
  Additional properties are allowed.
  
  Hide time_series attributes Show time_series attributes object
  
  end_time string | number
  
  A date and time, either as a string whose format can depend on the context (defaulting to ISO 8601), or a number of milliseconds since the Epoch. Elasticsearch accepts both as input, but will generally output a string representation.
  
  One of:
  _types:DateTime string _types:UnitMillis number
  
  Time unit for milliseconds
  
  start_time string | number
  
  A date and time, either as a string whose format can depend on the context (defaulting to ISO 8601), or a number of milliseconds since the Epoch. Elasticsearch accepts both as input, but will generally output a string representation.
  
  One of:
  _types:DateTime string _types:UnitMillis number
  
  Time unit for milliseconds
  
  queries object
  
  Additional properties are allowed.
  
  Hide queries attribute Show queries attribute object
  
  cache object
  
  Additional properties are allowed.
  
  Hide cache attribute Show cache attribute object
  
  enabled boolean Required
  
  similarity object
  
  Configure custom similarity settings to customize how search results are scored.
  
  mapping object
  
  Additional properties are allowed.
  
  Hide mapping attributes Show mapping attributes object
  
  coerce boolean
  
  total_fields object
  
  Additional properties are allowed.
  
  Hide total_fields attributes Show total_fields attributes object
  
  limit number
  
  The maximum number of fields in an index. Field and object mappings, as well as field aliases count towards this limit. The limit is in place to prevent mappings and searches from becoming too large. Higher values can lead to performance degradations and memory issues, especially in clusters with a high load or few resources.
  
  ignore_dynamic_beyond_limit boolean
  
  This setting determines what happens when a dynamically mapped field would exceed the total fields limit. When set to false (the default), the index request of the document that tries to add a dynamic field to the mapping will fail with the message Limit of total fields [X] has been exceeded. When set to true, the index request will not fail. Instead, fields that would exceed the limit are not added to the mapping, similar to dynamic: false. The fields that were not added to the mapping will be added to the _ignored field.
  
  depth object
  
  Additional properties are allowed.
  
  Hide depth attribute Show depth attribute object
  
  limit number
  
  The maximum depth for a field, which is measured as the number of inner objects. For instance, if all fields are defined at the root object level, then the depth is 1. If there is one object mapping, then the depth is 2, etc.
  
  nested_fields object
  
  Additional properties are allowed.
  
  Hide nested_fields attribute Show nested_fields attribute object
  
  limit number
  
  The maximum number of distinct nested mappings in an index. The nested type should only be used in special cases, when arrays of objects need to be queried independently of each other. To safeguard against poorly designed mappings, this setting limits the number of unique nested types per index.
  
  nested_objects object
  
  Additional properties are allowed.
  
  Hide nested_objects attribute Show nested_objects attribute object
  
  limit number
  
  The maximum number of nested JSON objects that a single document can contain across all nested types. This limit helps to prevent out of memory errors when a document contains too many nested objects.
  
  field_name_length object
  
  Additional properties are allowed.
  
  Hide field_name_length attribute Show field_name_length attribute object
  
  limit number
  
  Setting for the maximum length of a field name. This setting isn’t really something that addresses mappings explosion but might still be useful if you want to limit the field length. It usually shouldn’t be necessary to set this setting. The default is okay unless a user starts to add a huge number of fields with really long names. Default is Long.MAX_VALUE (no limit).
  
  dimension_fields object
  
  Additional properties are allowed.
  
  Hide dimension_fields attribute Show dimension_fields attribute object
  
  limit number
  
  [preview] This functionality is in technical preview and may be changed or removed in a future release. Elastic will work to fix any issues, but features in technical preview are not subject to the support SLA of official GA features.
  
  ignore_malformed boolean
  
  indexing.slowlog object
  
  Additional properties are allowed.
  
  Hide indexing.slowlog attributes Show indexing.slowlog attributes object
  
  level string
  
  source number
  
  reformat boolean
  
  threshold object
  
  Additional properties are allowed.
  
  Hide threshold attribute Show threshold attribute object
  
  index object
  
  Additional properties are allowed.
  
  Hide index attributes Show index attributes object
  
  warn string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  info string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  debug string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  trace string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  indexing_pressure object
  
  Additional properties are allowed.
  
  Hide indexing_pressure attribute Show indexing_pressure attribute object
  
  memory object Required
  
  Additional properties are allowed.
  
  Hide memory attribute Show memory attribute object
  
  limit number
  
  Number of outstanding bytes that may be consumed by indexing requests. When this limit is reached or exceeded, the node will reject new coordinating and primary operations. When replica operations consume 1.5x this limit, the node will reject new replica operations. Defaults to 10% of the heap.
  
  store object
  
  Additional properties are allowed.
  
  Hide store attributes Show store attributes object
  
  type string Required
  
  Any of:
  _types:StorageType string _types:StorageType string
  
  Values are fs, niofs, mmapfs, or hybridfs.
  
  allow_mmap boolean
  
  You can restrict the use of the mmapfs and the related hybridfs store type via the setting node.store.allow_mmap. This is a boolean setting indicating whether or not memory-mapping is allowed. The default is to allow it. This setting is useful, for example, if you are in an environment where you can not control the ability to create a lot of memory maps so you need disable the ability to use memory-mapping.
  
  data_stream string
  
  lifecycle object
  
  Additional properties are allowed.
  
  Hide lifecycle attributes Show lifecycle attributes object
  
  data_retention string
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  downsampling object
  
  Additional properties are allowed.
  
  Hide downsampling attribute Show downsampling attribute object
  
  rounds array[object] Required
  
  The list of downsampling rounds to execute as part of this downsampling configuration
  
  Hide rounds attributes Show rounds attributes object
  
  after string Required
  
  A duration. Units can be nanos, micros, ms (milliseconds), s (seconds), m (minutes), h (hours) and d (days). Also accepts "0" without a unit and "-1" to indicate an unspecified value.
  
  config object Required
  
  Additional properties are allowed.
- preview array[object] Required
  
  Additional properties are allowed.

GET /_transform/{transform_id}/_preview

curl \
 -X GET http://api.example.com/_transform/{transform_id}/_preview \
 -H "Content-Type: application/json" \
 -d '{"pivot":{"group_by":{"customer_id":{"terms":{"field":"customer_id","missing_bucket":true}}},"aggregations":{"max_price":{"max":{"field":"taxful_total_price"}}}},"source":{"index":"kibana_sample_data_ecommerce"}}'

Request example

{
  "pivot": {
    "group_by": {
      "customer_id": {
        "terms": {
          "field": "customer_id",
          "missing_bucket": true
        }
      }
    },
    "aggregations": {
      "max_price": {
        "max": {
          "field": "taxful_total_price"
        }
      }
    }
  },
  "source": {
    "index": "kibana_sample_data_ecommerce"
  }
}

Response examples (200)

{
  "preview": [
    {
      "max_price": 171,
      "customer_id": "10"
    },
    {
      "max_price": 233,
      "customer_id": "11"
    },
    {
      "max_price": 200,
      "customer_id": "12"
    },
    {
      "max_price": 301,
      "customer_id": "13"
    },
    {
      "max_price": 176,
      "customer_id": "14"
    },
    {
      "max_price": 2250,
      "customer_id": "15"
    },
    {
      "max_price": 170,
      "customer_id": "16"
    },
    {
      "max_price": 243,
      "customer_id": "17"
    },
    {
      "max_price": 154,
      "customer_id": "18"
    },
    {
      "max_price": 393,
      "customer_id": "19"
    },
    {
      "max_price": 165,
      "customer_id": "20"
    },
    {
      "max_price": 115,
      "customer_id": "21"
    },
    {
      "max_price": 192,
      "customer_id": "22"
    },
    {
      "max_price": 169,
      "customer_id": "23"
    },
    {
      "max_price": 230,
      "customer_id": "24"
    },
    {
      "max_price": 278,
      "customer_id": "25"
    },
    {
      "max_price": 200,
      "customer_id": "26"
    },
    {
      "max_price": 344,
      "customer_id": "27"
    },
    {
      "max_price": 175,
      "customer_id": "28"
    },
    {
      "max_price": 177,
      "customer_id": "29"
    },
    {
      "max_price": 190,
      "customer_id": "30"
    },
    {
      "max_price": 190,
      "customer_id": "31"
    },
    {
      "max_price": 205,
      "customer_id": "32"
    },
    {
      "max_price": 215,
      "customer_id": "33"
    },
    {
      "max_price": 270,
      "customer_id": "34"
    },
    {
      "max_price": 184,
      "customer_id": "36"
    },
    {
      "max_price": 222,
      "customer_id": "37"
    },
    {
      "max_price": 370,
      "customer_id": "38"
    },
    {
      "max_price": 240,
      "customer_id": "39"
    },
    {
      "max_price": 230,
      "customer_id": "4"
    },
    {
      "max_price": 229,
      "customer_id": "41"
    },
    {
      "max_price": 190,
      "customer_id": "42"
    },
    {
      "max_price": 150,
      "customer_id": "43"
    },
    {
      "max_price": 175,
      "customer_id": "44"
    },
    {
      "max_price": 190,
      "customer_id": "45"
    },
    {
      "max_price": 150,
      "customer_id": "46"
    },
    {
      "max_price": 310,
      "customer_id": "48"
    },
    {
      "max_price": 223,
      "customer_id": "49"
    },
    {
      "max_price": 283,
      "customer_id": "5"
    },
    {
      "max_price": 185,
      "customer_id": "50"
    },
    {
      "max_price": 190,
      "customer_id": "51"
    },
    {
      "max_price": 333,
      "customer_id": "52"
    },
    {
      "max_price": 165,
      "customer_id": "6"
    },
    {
      "max_price": 144,
      "customer_id": "7"
    },
    {
      "max_price": 198,
      "customer_id": "8"
    },
    {
      "max_price": 210,
      "customer_id": "9"
    }
  ],
  "generated_dest_index": {
    "aliases": {},
    "mappings": {
      "_meta": {
        "_transform": {
          "version": {
            "created": "10.0.0"
          },
          "transform": "transform-preview",
          "creation_date_in_millis": 1712948905889
        },
        "created_by": "transform"
      },
      "properties": {
        "max_price": {
          "type": "half_float"
        },
        "customer_id": {
          "type": "keyword"
        }
      }
    },
    "settings": {
      "index": {
        "number_of_shards": "1",
        "auto_expand_replicas": "0-1"
      }
    }
  }
}

Preview a transform Added in 7.2.0

Path parameters

Query parameters

Body

order object | array[object]

bounds object

order object | array[object]

lang string

Responses

routing_path string | array[string]

order string | array[string]

mode string | array[string]

missing string | array[string]

number_of_shards number | string

number_of_replicas number | string

routing_partition_size number | string

hidden boolean | string

max_thread_count number | string

max_merge_count number | string

read_only boolean | string

read_only_allow_delete boolean | string

read boolean | string

write boolean | string

metadata boolean | string

max_token_count number | string

indexing_complete boolean | string

creation_date number | string

creation_date_string string | number

verified_before_close boolean | string

format string | number

flush_threshold_size number | string

size number | string

lenient boolean | string Required

priority number | string

end_time string | number

start_time string | number

type string Required