| bad_record_table_name | Name of a table to which records that were rejected are written. The bad-record-table has the following columns: line_number (long), line_rejected (string), error_message (string). When
error_handling is abort, bad records table is not populated. |
| bad_record_table_limit | A positive integer indicating the maximum number of records that can be written to the bad-record-table. The default value is '10000'. |
| bad_record_table_limit_per_input | For subscriptions, a positive integer indicating the maximum number of records that can be written to the bad-record-table per file/payload. Default value will be bad_record_table_limit and
total size of the table per rank is limited to bad_record_table_limit. |
| batch_size | Number of records to insert per batch when inserting data. The default value is '50000'. |
| column_formats | For each target column specified, applies the column-property-bound format to the source data loaded into that column. Each column format will contain a mapping of one or more of its column
properties to an appropriate format for each property. Currently supported column properties include date, time, & datetime. The parameter value must be formatted as a JSON string of maps of
column names to maps of column properties to their corresponding column formats, e.g., '{ "order_date" : { "date" : "%Y.%m.%d" }, "order_time" : { "time" : "%H:%M:%S" } }'. See
default_column_formats for valid format syntax. |
| columns_to_load | Specifies a comma-delimited list of columns from the source data to load. If more than one file is being loaded, this list applies to all files. Column numbers can be specified discretely
or as a range. For example, a value of '5,7,1..3' will insert values from the fifth column in the source data into the first column in the target table, from the seventh column in the source
data into the second column in the target table, and from the first through third columns in the source data into the third through fifth columns in the target table. If the source data
contains a header, column names matching the file header names may be provided instead of column numbers. If the target table doesn't exist, the table will be created with the columns in
this order. If the target table does exist with columns in a different order than the source data, this list can be used to match the order of the target table. For example, a value of 'C,
B, A' will create a three column table with column C, followed by column B, followed by column A; or will insert those fields in that order into a table created with columns in that order.
If the target table exists, the column names must match the source data field names for a name-mapping to be successful. Mutually exclusive with columns_to_skip. |
| columns_to_skip | Specifies a comma-delimited list of columns from the source data to skip. Mutually exclusive with columns_to_load. |
| compression_type | Source data compression type The default value is auto. | Supported
Values | Description |
|---|
| none | No compression. | | auto | Auto detect compression type | | gzip | gzip file compression. | | bzip2 | bzip2 file compression. |
|
| datasource_name | Name of an existing external data source from which data file(s) specified in input parameter filepaths will be loaded |
| default_column_formats | Specifies the default format to be applied to source data loaded into columns with the corresponding column property. Currently supported column properties include date, time, & datetime.
This default column-property-bound format can be overridden by specifying a column property & format for a given target column in column_formats. For each specified annotation, the format
will apply to all columns with that annotation unless a custom column_formats for that annotation is specified. The parameter value must be formatted as a JSON string that is a map of
column properties to their respective column formats, e.g., '{ "date" : "%Y.%m.%d", "time" : "%H:%M:%S" }'. Column formats are specified as a string of control characters and plain text. The
supported control characters are 'Y', 'm', 'd', 'H', 'M', 'S', and 's', which follow the Linux 'strptime()' specification, as well as 's', which specifies seconds and fractional seconds
(though the fractional component will be truncated past milliseconds). Formats for the 'date' annotation must include the 'Y', 'm', and 'd' control characters. Formats for the 'time'
annotation must include the 'H', 'M', and either 'S' or 's' (but not both) control characters. Formats for the 'datetime' annotation meet both the 'date' and 'time' control character
requirements. For example, '{"datetime" : "%m/%d/%Y %H:%M:%S" }' would be used to interpret text as "05/04/2000 12:12:11" |
| error_handling | Specifies how errors should be handled upon insertion. The default value is abort. | Supported Values | Description |
|---|
| permissive | Records with missing columns are populated with nulls if possible; otherwise, the malformed records are skipped. | | ignore_bad_records | Malformed records are skipped. | | abort | Stops current insertion and aborts entire operation when an error is encountered. Primary key collisions are considered abortable errors in this mode. |
|
| external_table_type | Specifies whether the external table holds a local copy of the external data. The default value is materialized. | Supported
Values | Description |
|---|
| materialized | Loads a copy of the external data into the database, refreshed on demand | | logical | External data will not be loaded into the database; the data will be retrieved from the source upon servicing each query against the external table |
|
| file_type | Specifies the type of the file(s) whose records will be inserted. The default value is delimited_text. | Supported
Values | Description |
|---|
| avro | Avro file format | | delimited_text | Delimited text file format; e.g., CSV, TSV, PSV, etc. | | gdb | Esri/GDB file format | | json | Json file format | | parquet | Apache Parquet file format | | shapefile | ShapeFile file format |
|
| gdal_configuration_options | Comma separated list of gdal conf options, for the specific requets: key=value |
| ignore_existing_pk | Specifies the record collision error-suppression policy for inserting into a table with a primary key, only used when not in upsert mode (upsert mode
is disabled when update_on_existing_pk is false). If set to true, any record being inserted that is rejected for having primary key values that match those of an existing table record
will be ignored with no error generated. If false, the rejection of any record for having primary key values matching an existing record will result in an error being reported, as
determined by error_handling. If the specified table does not have a primary key or if upsert mode is in effect (update_on_existing_pk is true), then this option has no effect. The
default value is false. | Supported
Values | Description |
|---|
| true | Ignore new records whose primary key values collide with those of existing records | | false | Treat as errors any new records whose primary key values collide with those of existing records |
|
| ingestion_mode | Whether to do a full load, dry run, or perform a type inference on the source data. The default value is full. | Supported Values | Description |
|---|
| full | Run a type inference on the source data (if needed) and ingest | | dry_run | Does not load data, but walks through the source data and determines the number of valid records, taking into account the current mode of error_handling. | | type_inference_only | Infer the type of the source data and return, without ingesting any data. The inferred type is returned in the response. |
|
| jdbc_fetch_size | The JDBC fetch size, which determines how many rows to fetch per round trip. The default value is '50000'. |
| kafka_consumers_per_rank | Number of Kafka consumer threads per rank (valid range 1-6). The default value is '1'. |
| kafka_group_id | The group id to be used when consuming data from a Kafka topic (valid only for Kafka datasource subscriptions). |
| kafka_offset_reset_policy | Policy to determine whether the Kafka data consumption starts either at earliest offset or latest offset. The default value is earliest. The supported values are: |
| kafka_optimistic_ingest | Enable optimistic ingestion where Kafka topic offsets and table data are committed independently to achieve parallelism. The default value is false. The supported values are: |
| kafka_subscription_cancel_after | Sets the Kafka subscription lifespan (in minutes). Expired subscription will be cancelled automatically. |
| kafka_type_inference_fetch_timeout | Maximum time to collect Kafka messages before type inferencing on the set of them. |
| layer | Geo files layer(s) name(s): comma separated. |
| loading_mode | Scheme for distributing the extraction and loading of data from the source data file(s). This option applies only when loading files that are local to the database The default value is
head. | Supported Values | Description |
|---|
| head | The head node loads all data. All files must be available to the head node. | | distributed_shared | The head node coordinates loading data by worker processes across all nodes from shared files
available to all workers. NOTE: Instead of existing on a shared source, the files can be
duplicated on a source local to each host to improve performance, though the files must appear as
the same data set from the perspective of all hosts performing the load. | | distributed_local | A single worker process on each node loads all files that are available to it. This option works
best when each worker loads files from its own file system, to maximize performance. In order to
avoid data duplication, either each worker performing the load needs to have visibility to a set of
files unique to it (no file is visible to more than one node) or the target table needs to have a
primary key (which will allow the worker to automatically deduplicate data). NOTE: If the target
table doesn't exist, the table structure will be determined by the head node. If the head node has
no files local to it, it will be unable to determine the structure and the request will fail. If
the head node is configured to have no worker processes, no data strictly accessible to the head
node will be loaded. |
|
| local_time_offset | Apply an offset to Avro local timestamp columns. |
| max_records_to_load | Limit the number of records to load in this request: if this number is larger than batch_size, then the number of records loaded will be limited to the next whole number of batch_size
(per working thread). |
| num_tasks_per_rank | Number of tasks for reading file per rank. Default will be system configuration parameter, external_file_reader_num_tasks. |
| poll_interval | If true, the number of seconds between attempts to load external files into the table. If zero, polling will be continuous as long as data is found. If no data is found, the interval will
steadily increase to a maximum of 60 seconds. The default value is '0'. |
| primary_keys | Comma separated list of column names to set as primary keys, when not specified in the type. |
| refresh_method | Method by which the table can be refreshed from its source data. The default value is manual. | Supported
Values | Description |
|---|
| manual | Refresh only occurs when manually requested by invoking the refresh action of
Alter Table
on this table. | | on_start | Refresh table on database startup and when manually requested by invoking the refresh action of
Alter Table
on this table. |
|
| schema_registry_schema_name | Name of the Avro schema in the schema registry to use when reading Avro records. |
| shard_keys | Comma separated list of column names to set as shard keys, when not specified in the type. |
| skip_lines | Skip number of lines from begining of file. |
| subscribe | Continuously poll the data source to check for new data and load it into the table. The default value is false. The supported values are: |
| table_insert_mode | Insertion scheme to use when inserting records from multiple shapefiles. The default value is single. | Supported
Values | Description |
|---|
| single | Insert all records into a single table. | | table_per_file | Insert records from each file into a new table corresponding to that file. |
|
| text_comment_string | Specifies the character string that should be interpreted as a comment line prefix in the source data. All lines in the data starting with the provided string are ignored. For
delimited_text file_type only. The default value is '#'. |
| text_delimiter | Specifies the character delimiting field values in the source data and field names in the header (if present). For delimited_text file_type only. The default value is ','. |
| text_escape_character | Specifies the character that is used to escape other characters in the source data. An 'a', 'b', 'f', 'n', 'r', 't', or 'v' preceded by an escape character will be interpreted as the ASCII
bell, backspace, form feed, line feed, carriage return, horizontal tab, & vertical tab, respectively. For example, the escape character followed by an 'n' will be interpreted as a newline
within a field value. The escape character can also be used to escape the quoting character, and will be treated as an escape character whether it is within a quoted field value or not. For
delimited_text file_type only. |
| text_has_header | Indicates whether the source data contains a header row. For delimited_text file_type only. The default value is true. The supported values are: |
| text_header_property_delimiter | Specifies the delimiter for column properties in the header row (if present). Cannot be set to same value as text_delimiter. For
delimited_text file_type only. The default value is '|'. |
| text_null_string | Specifies the character string that should be interpreted as a null value in the source data. For delimited_text file_type only. The default value is '\N'. |
| text_quote_character | Specifies the character that should be interpreted as a field value quoting character in the source data. The character must appear at beginning and end of field value to take effect.
Delimiters within quoted fields are treated as literals and not delimiters. Within a quoted field, two consecutive quote characters will be interpreted as a single literal quote character,
effectively escaping it. To not have a quote character, specify an empty string. For delimited_text file_type only. The default value is '"'. |
| text_search_columns | Add 'text_search' property to internally inferenced string columns. Comma seperated list of column names or '*' for all columns. To add 'text_search' property only to string columns greater
than or equal to a minimum size, also set the text_search_min_column_length |
| text_search_min_column_length | Set the minimum column size for strings to apply the 'text_search' property to. Used only when text_search_columns has a value. |
| truncate_strings | If set to true, truncate string values that are longer than the column's type size. The default value is false. The supported values are: |
| truncate_table | If set to true, truncates the table specified by input parameter table_name prior to loading the file(s). The default value is false. The supported values are: |
| type_inference_mode | Optimize type inferencing for either speed or accuracy. The default value is speed. | Supported
Values | Description |
|---|
| accuracy | Scans data to get exactly-typed & sized columns for all data scanned. | | speed | Scans data and picks the widest possible column types so that 'all' values will fit with minimum data scanned |
|
| remote_query | Remote SQL query from which data will be sourced |
| remote_query_filter_column | Name of column to be used for splitting remote_query into multiple sub-queries using the data distribution of given column |
| remote_query_increasing_column | Column on subscribed remote query result that will increase for new records (e.g., TIMESTAMP). |
| remote_query_partition_column | Alias name for remote_query_filter_column. |
| update_on_existing_pk | Specifies the record collision policy for inserting into a table with a primary key. If set to true, any existing table record with primary key
values that match those of a record being inserted will be replaced by that new record (the new data will be 'upserted'). If set to false, any existing table record with primary key values
that match those of a record being inserted will remain unchanged, while the new record will be rejected and the error handled as determined by ignore_existing_pk & error_handling. If
the specified table does not have a primary key, then this option has no effect. The default value is false. | Supported
Values | Description |
|---|
| true | Upsert new records when primary keys match existing records | | false | Reject new records when primary keys match existing records |
|
