CopyOut

Copy tabular data from a PostgreSQL table to a file.

yaml
type: "io.kestra.plugin.jdbc.postgresql.CopyOut"

Examples

Export a PostgreSQL table or query to a CSV or TSV file.

yaml
id: postgres_copy_out
namespace: company.team

tasks:
  - id: copy_out
    type: io.kestra.plugin.jdbc.postgresql.CopyOut
    url: jdbc:postgresql://sample_postgres:5432/world
    username: "{{ secret("POSTGRES_USERNAME") }}"
    password: "{{ secret("POSTGRES_PASSWORD") }}"
    format: CSV
    sql: SELECT 1 AS int, 't'::bool AS bool UNION SELECT 2 AS int, 'f'::bool AS bool
    header: true
    delimiter: "\t"

Export output of a Postgres SQL query to a CSV file

yaml
id: export_from_postgres
namespace: company.team

tasks:
  - id: export
    type: io.kestra.plugin.jdbc.postgresql.CopyOut
    url: jdbc:postgresql://sample_postgres:5432/world
    username: "{{ secret("POSTGRES_USERNAME") }}"
    password: "{{ secret("POSTGRES_PASSWORD") }}"
    format: CSV
    header: true
    sql: SELECT * FROM country LIMIT 10
    delimiter: ","

  - id: log
    type: io.kestra.plugin.core.log.Log
    message: "{{ outputs.export.rowCount }}"

Properties

url *string

The JDBC URL to connect to the database.

columns array

SubType string

An optional list of columns to be copied.

If no column list is specified, all columns of the table will be copied.

delimiter string

Specifies the character that separates columns within each row (line) of the file.

The default is a tab character in text format, a comma in CSV format. This must be a single one-byte character. This option is not allowed when using binary.

encoding string

Specifies that the file is encoded in the encoding_name.

If this option is omitted, the current client encoding is used. See the Notes below for more details.

escape string

Specifies the character that should appear before a data character that matches the QUOTE value.

The default is the same as the QUOTE value (so that the quoting character is doubled if it appears in the data). This must be a single one-byte character. This option is allowed only when using CSV format.

forceNotNull array

SubType string

Do not match the specified columns' values against the null string.

In the default case where the null string is empty, this means that empty values will be read as zero-length strings rather than nulls, even when they are not quoted. This option is allowed only in COPY FROM, and only when using CSV format.

forceNull array

SubType string

Match the specified columns' values against the null string, even if it has been quoted, and if a match is found set the value to NULL.

In the default case where the null string is empty, this converts a quoted empty string into NULL. This option is allowed only in COPY FROM, and only when using CSV format.

forceQuote array

SubType string

Forces quoting to be used for all non-NULL values in each specified column.

NULL output is never quoted. If * is specified, non-NULL values will be quoted in all columns. This option is allowed only in COPY TO, and only when using CSV format.

format string

Default TEXT

Possible Values

TEXTCSVBINARY

Selects the data format to be read or written.

freeze booleanstring

Requests copying the data with rows already frozen, just as they would be after running the VACUUM FREEZE command.

This is intended as a performance option for initial data loading. Rows will be frozen only if the table being loaded has been created or truncated in the current sub-transaction, there are no cursors open and there are no older snapshots held by this transaction. It is currently not possible to perform a COPY FREEZE on a partitioned table.

Note that all other sessions will immediately be able to see the data once it has been successfully loaded. This violates the normal rules of MVCC visibility and users specifying should be aware of the potential problems this might cause.

header booleanstring

Specifies that the file contains a header line with the names of each column in the file.

On output, the first line contains the column names from the table, and on input, the first line is ignored. This option is allowed only when using CSV.

nullString string

Specifies the string that represents a null value.

The default is \N (backslash-N) in text format, and an unquoted empty string in CSV format. You might prefer an empty string even in text format for cases where you don't want to distinguish nulls from empty strings. This option is not allowed when using binary format.

oids booleanstring

Specifies copying the OID for each row.

An error is raised if OIDs is specified for a table that does not have OIDs, or in the case of copying a query.

password string

The database user's password.

quote string

Specifies the quoting character to be used when a data value is quoted.

The default is double-quote. This must be a single one-byte character. This option is allowed only when using CSV format.

sql string

A SELECT, VALUES, INSERT, UPDATE or DELETE command whose results are to be copied.

For INSERT, UPDATE and DELETE queries a RETURNING clause must be provided, and the target relation must not have a conditional rule, nor an ALSO rule, nor an INSTEAD rule that expands to multiple statements.

ssl booleanstring

Default false

Is the connection SSL?

sslCert string

The SSL cert.

Must be a PEM encoded certificate

sslKey string

The SSL key.

Must be a PEM encoded key

sslKeyPassword string

The SSL key password.

sslMode string

Possible Values

DISABLEALLOWPREFERREQUIREVERIFY_CAVERIFY_FULL

The SSL mode.

sslRootCert string

The SSL root cert.

Must be a PEM encoded certificate

table string

The name (optionally schema-qualified) of an existing table.

username string

The database user.

Outputs

rowCount integer

The rows count from this COPY.

uri string

Format uri

The URI of the result file on Kestra's internal storage.

​Copy​Out

CopyOut