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Matillion ETL Data Model for Google BigQuery
Version - 17.0.6634

Note: Data models are true for the latest version of Matillion ETL. If you are on an older version or using a component from an old job, your experience may differ.




Connection String OptionsBack To Top

  1. Allow Large Result Sets
  2. Auto Cache
  3. Batch Size
  4. Cache Connection
  5. Cache Driver
  6. Cache Location
  7. Cache Metadata
  8. Cache Query Result
  9. Connect On Open
  10. Dataset Id
  11. Destination Table
  12. Firewall Password
  13. Firewall Port
  14. Firewall Server
  15. Firewall Type
  16. Firewall User
  17. Google Big Query Options
  18. Initiate OAuth
  19. Location
  20. Logfile
  21. Maximum Billing Tier
  22. Max Log File Size
  23. OAuth Access Token
  24. OAuth Client Id
  25. OAuth Client Secret
  26. OAuth JWT Cert
  27. OAuth JWT Cert Password
  28. OAuth JWT Cert Subject
  29. OAuth JWT Cert Type
  30. OAuth JWT Issuer
  31. OAuth JWT Subject
  32. OAuth Refresh Token
  33. OAuth Settings Location
  34. OAuth Verifier
  35. Offline
  36. Other
  37. Page Size
  38. Polling Interval
  39. Pool Idle Timeout
  40. Pool Max Size
  41. Pool Wait Time
  42. Project Id
  43. Proxy Auth Scheme
  44. Proxy Auto Detect
  45. Proxy Exceptions
  46. Proxy Password
  47. Proxy Port
  48. Proxy Server
  49. Proxy SSL Type
  50. Proxy User
  51. Pseudo Columns
  52. Query Passthrough
  53. Readonly
  54. RTK
  55. SSL Server Cert
  56. Tables
  57. Temp Table Dataset
  58. Temp Table Expiration Time
  59. Timeout
  60. Use Connection Pooling
  61. Use Legacy SQL
  62. Verbosity
  63. Views



Allow Large Result Sets

Whether or not to allow large datasets to be stored in temporary tables for large datasets.
Data Type

bool

Default Value

true

Remarks

Whether or not to allow large datasets to be stored in temporary tables for large datasets.





Auto Cache

Automatically caches the results of SELECT queries into a cache database specified by either CacheLocation or both of CacheConnection and CacheProvider . Configured with CacheQueryResult .
Data Type

bool

Default Value

false

Remarks

When AutoCache is set, the driver automatically maintains a cache of your table's data in the database of your choice. With CacheQueryResult additionally set, the driver updates the cache when you execute a SELECT query and returns the live results from the Google BigQuery data.

Explicitly Caching SELECT Results

CacheQueryResult is a way to query Google BigQuery in real time while maintaining a cache for offline use. Set CacheQueryResult to update the cache whenever you execute a SELECT statement. When you execute a SELECT statement with AutoCache and CacheQueryResult set, the driver executes the query to the remote data and caches the results; rows that already exist are overwritten. That is, SELECT statements are used to create and refresh the cache, not to query it. Data manipulation commands are executed to the remote data as well.

To query the cached data, set the Offline property. If you need to query the cached data in an online connection, you can append #CACHE to the table name. For example:

SELECT * FROM [publicdata:samples.github_nested#CACHE]

Setting the Caching Database

When AutoCache is set, the driver caches to a simple, file-based cache. You can configure its location or cache to a different database with the following properties:

See Also





Batch Size

The maximum size of each batch operation to submit.
Data Type

int

Default Value

0

Remarks

When BatchSize is set to a value greater than 0, the batch operation will split the entire batch into separate batches of size BatchSize. The split batches will then be submitted to the server individually. This is useful when the server has limitations on the size of the request that can be submitted.

Setting BatchSize to 0 will submit the entire batch as specified.





Cache Connection

The connection string for the cache database. Always used in conjunction with CacheProvider . Setting both properties will override the value set for CacheLocation for caching data.
Data Type

string

Default Value

""

Remarks

The cache database is determined based on the CacheDriver and CacheConnection properties. Both properies are required to use the cache database. Examples of common cache database settings can be found below. For more information on setting the caching database's driver, refer to CacheDriver.

The connection string specified in the CacheConnection property is passed directly to the underlying CacheDriver. Consult the documentation for the specific JDBC driver for more information on the available properties. Make sure to include the JDBC driver in your application's classpath.

Derby and Java DB

The driver simplifies caching to Derby, only requiring you to set the CacheLocation property to make a basic connection.

Alternatively, you can configure the connection to Derby manually using CacheProvider and CacheConnection. Below is the Derby JDBC URL syntax:

jdbc:derby:[subsubprotocol:][databaseName][;attribute=value[;attribute=value] ... ]
For example, to cache to an in-memory database, use the following:
jdbc:derby:memory

SQLite

To cache to SQLite, you can use the SQLite JDBC driver. Below is the syntax of the JDBC URL:

jdbc:sqlite:dataSource

MySQL

The installation includes the CData JDBC Driver for MySQL. Below is an example JDBC URL:

jdbc:mysql:User=root;Password=root;Server=localhost;Port=3306;Database=cache
Below are typical connection properties:

SQL Server

The JDBC URL for the Microsoft JDBC Driver for SQL Server has the following syntax:

jdbc:sqlserver://[serverName[\instance][:port]][;database=databaseName][;property=value[;property=value] ... ]
For example:
jdbc:sqlserver://localhost\sqlexpress:1433;integratedSecurity=true
Below are typical SQL Server connection properties:
Oracle

Below is the conventional JDBC URL syntax for the Oracle JDBC Thin driver:

jdbc:oracle:thin:[userId/password]@[//]host[[:port][:sid]]
For example:
jdbc:oracle:thin:scott/tiger@myhost:1521:orcl
Below are typical connection properties:
PostgreSQL

Below is the JDBC URL syntax for the official PostgreSQL JDBC driver:

jdbc:postgresql:[//[host[:port]]/]database[[?option=value][[&option=value][&option=value] ... ]]
For example, the following connection string connects to a database on the default host (localhost) and port (5432):
jdbc:postgresql:postgres
Below are typical connection properties:





Cache Driver

The database driver to be used to cache data.
Data Type

string

Default Value

""

Remarks

You can cache to any database for which you have a JDBC driver, including CData JDBC drivers.

The cache database is determined based on the CacheDriver and CacheConnection properties. The CacheDriver is the name of the JDBC driver class that you would like to use to cache data.

Note that you must also add the CacheDriver JAR to the classpath.

The following examples show how to cache to several major databases. Refer to CacheConnection for more information on the JDBC URL syntax and typical connection properties.

Derby and Java DB

The driver simplifies Derby configuration. Java DB is the Oracle distribution of Derby. The JAR is shipped in the JDK. You can find the JAR, derby.jar, in the db subfolder of the JDK installation. In most caching scenarios, you need to specify only the following, after adding derby.jar to the classpath.

jdbc:googlebigquery:CacheLocation='c:/Temp/cachedir';InitiateOAuth=GETANDREFRESH;ProjectId=NameOfProject;DatasetId=NameOfDataset;
To customize the Derby JDBC URL, use CacheDriver and CacheConnection. For example, to cache to an in-memory database, use a JDBC URL like the following:
jdbc:googlebigquery:CacheDriver=org.apache.derby.jdbc.EmbeddedDriver;CacheConnection='jdbc:derby:memory';InitiateOAuth=GETANDREFRESH;ProjectId=NameOfProject;DatasetId=NameOfDataset;
SQLite

Below is a JDBC URL for the SQLite JDBC driver:

jdbc:googlebigquery:CacheDriver=org.sqlite.JDBC;CacheConnection='jdbc:sqlite:C:/Temp/sqlite.db';InitiateOAuth=GETANDREFRESH;ProjectId=NameOfProject;DatasetId=NameOfDataset;
MySQL

Below is a JDBC URL for the included CData JDBC Driver for MySQL:

  jdbc:googlebigquery:Cache Driver=cdata.jdbc.mysql.MySQLDriver;Cache Connection='jdbc:mysql:Server=localhost;Port=3306;Database=cache;User=root;Password=123456';InitiateOAuth=GETANDREFRESH;ProjectId=NameOfProject;DatasetId=NameOfDataset;
  
The CData JDBC Driver for MySQL is located in the lib subfolder of the CData JDBC Driver for Google BigQuery 2017 installation directory.
SQL Server

The following JDBC URL uses the Microsoft JDBC Driver for SQL Server:

jdbc:googlebigquery:Cache Driver=com.microsoft.sqlserver.jdbc.SQLServerDriver;Cache Connection='jdbc:sqlserver://localhost\sqlexpress:7437;user=sa;password=123456;databaseName=Cache';InitiateOAuth=GETANDREFRESH;ProjectId=NameOfProject;DatasetId=NameOfDataset;
Oracle

Below is a JDBC URL for the Oracle Thin Client:

jdbc:googlebigquery:Cache Driver=oracle.jdbc.driver.OracleDriver;CacheConnection='jdbc:oracle:thin:scott/tiger@localhost:1521:orcldb';InitiateOAuth=GETANDREFRESH;ProjectId=NameOfProject;DatasetId=NameOfDataset;
PostgreSQL

The following JDBC URL uses the official PostgreSQL JDBC driver:

jdbc:googlebigquery:CacheDriver=org.postgresql.Driver;CacheConnection='jdbc:postgresql://localhost:5433/postgres?user=postgres&password=admin';InitiateOAuth=GETANDREFRESH;ProjectId=NameOfProject;DatasetId=NameOfDataset;





Cache Location

Specifies the path to the cache when caching to a file.
Data Type

string

Default Value

""

Remarks

The CacheLocation is a simple, file-based cache. The driver uses Java DB, Oracle's distribution of the Derby database. To cache to Java DB, you will need to add the Java DB JAR to the classpath. The JAR, derby.jar, is shipped in the JDK and located in the db subfolder of the JDK installation.

CacheLocation defaults to the directory specified by the Location setting.

See Also





Cache Metadata

Whether or not to cache the table metadata to a file store.
Data Type

bool

Default Value

false

Remarks

-synch -port -rssis As you execute queries with this property set, table metadata in the Google BigQuery catalog are cached to the file store specified by CacheLocation if set or the user's home directory otherwise. A table's metadata will be retrieved only once, when the table is queried for the first time.

When to Use CacheMetadata

The driver automatically persists metadata in memory for up to two hours when you first discover the metadata for a table or view and therefore, CacheMetadata is generally not required. CacheMetadata becomes useful when metadata operations are expensive such as when you are working with large amounts of metadata or when you have many short-lived connections.

When Not to Use CacheMetadata





Cache Query Result

With AutoCache set, caches each row read from a SELECT query's results. Without this, the provider will attempt to fully replicate the table before executing the actual query against the replication database.
Data Type

bool

Default Value

false

Remarks

When CacheQueryResult and AutoCache are set, the rows returned from a SELECT query are cached in the cache database. The driver handles caching in a streaming fashion with each row being processed into the cache database from the original result set as you read the row from the returned ResultSet object. This ensures that the live data is not queried twice. Note that any rows you do not read from the returned ResultSet will not be updated in the cache.





Connect On Open

Species whether to connect to the Google BigQuery when the connection is opened.
Data Type

bool

Default Value

false

Remarks

When set to 'true', a connection will be made to Google BigQuery when the connection is opened. This property enables the 'Test Connection' feature available in various database tools.

This feature acts as a NOOP command as it is used to verify a connection can be made to Google BigQuery and nothing from this initial connection is maintained.

Setting this property to 'false' may provide performance improvements (depending upon the number of times a connection is opened).





Dataset Id

The DatasetId of the dataset you wish to connect to and view tables of.
Data Type

string

Default Value

""

Remarks

The DatasetId of the dataset you wish to connect to and view tables of. You can find this value in Google BigQuery, after selecting a project.

After connecting to an initial dataset, you can query the Datasets view to discover the Ids for all datasets in a project. Along with ProjectId.





Destination Table

DestinationTable is entered in the format DestinationProjectId:DestinationDataSet.TableName. Setting DestinationTable allows the query to return very large result sets (more than 128mb of result data) to a permanent destination table.
Data Type

string

Default Value

""

Remarks

Queries that return large results will take longer to execute, even if the result set is small, and are subject to additional limitations:

Note: The default write mode for this table is WRITE_TRUNCATE, so each query will drop the existing table and write the new result set. It is suggested each connection has a different DestinationTable specified.





Firewall Password

A password used to authenticate to a proxy-based firewall.
Data Type

string

Default Value

""

Remarks

This property is passed to the proxy specified by FirewallServer and FirewallPort, following the authentication method specified by FirewallType.





Firewall Port

The TCP port for a proxy-based firewall.
Data Type

string

Default Value

""

Remarks

This specifies the TCP port for a proxy allowing traversal of a firewall. Use FirewallServer to specify the name or IP address. Specify the protocol with FirewallType.





Firewall Server

The name or IP address of a proxy-based firewall.
Data Type

string

Default Value

""

Remarks

This property specifies the IP address, DNS name, or host name of a proxy allowing traversal of a firewall. The protocol is specified by FirewallType: Use FirewallServer with this property to connect through SOCKS or do tunneling. Use ProxyServer to connect to an HTTP proxy.

Note that the driver uses the system proxy by default. To use a different proxy, set ProxyAutoDetect to false.





Firewall Type

The protocol used by a proxy-based firewall.
Data Type

string

Default Value

"NONE"

Remarks

This property specifies the protocol that the driver will use to tunnel traffic through the FirewallServer proxy. Note that by default the driver connects to the system proxy; to disable this behavior and connect to one of the following proxy types, set ProxyAutoDetect to false.

Type Default Port Description
TUNNEL 80 When this is set, the driver opens a connection to Google BigQuery and traffic flows back and forth through the proxy.
SOCKS4 1080 When this is set, the driver sends data through the SOCKS 4 proxy specified by FirewallServer and FirewallPort and passes the FirewallUser value to the proxy, which determines if the connection request should be granted.
SOCKS5 1080 When this is set, the driver sends data through the SOCKS 5 proxy specified by FirewallServer and FirewallPort. If your proxy requires authentication, set FirewallUser and FirewallPassword to credentials the proxy recognizes.

To connect to HTTP proxies, use ProxyServer and ProxyPort. To authenticate to HTTP proxies, use ProxyAuthScheme, ProxyUser, and ProxyPassword.





Firewall User

The user name to use to authenticate with a proxy-based firewall.
Data Type

string

Default Value

""

Remarks

The FirewallUser and FirewallPassword properties are used to authenticate against the proxy specified in FirewallServer and FirewallPort, following the authentication method specified in FirewallType.





Google Big Query Options

A comma separated list of Google BigQuery options.
Data Type

string

Default Value

""

Remarks

A list of Google BigQuery options:

OptionDescription
gbqoImplicitJoinAsUnionThis option will prevent the driver from converting an IMPLICIT JOIN into a CROSS JOIN as expected by SQL92. Instead, it will leave it as an IMPLICIT JOIN, which Google BigQuery will execute as a UNION ALL.





Initiate OAuth

Set this property to initiate the process to obtain or refresh the OAuth access token when you connect.
Data Type

string

Default Value

"OFF"

Remarks

The following options are available:

  1. OFF: Indicates that the OAuth flow will be handled entirely by the user. An OAuthAccessToken will be required to authenticate.
  2. GETANDREFRESH: Indicates that the entire OAuth Flow will be handled by the driver. If no token currently exists, it will be obtained by prompting the user via the browser. If a token exists, it will be refreshed when applicable.
  3. REFRESH: Indicates that the driver will only handle refreshing the OAuthAccessToken. The user will never be prompted by the driver to authenticate via the browser. The user must handle obtaining the OAuthAccessToken and OAuthRefreshToken initially.





Location

A path to the directory that contains the schema files defining tables, views, and stored procedures.
Data Type

string

Default Value

""

Remarks

The path to a directory which contains the schema files for the driver (.rsd files for tables and views, .rsb files for stored procedures). The Location property is only needed if you would like to customize definitions (e.g., change a column name, ignore a column, etc.) or extend the data model with new tables, views, or stored procedures.

The schema files are deployed alongside the driver assemblies. You must also ensure that Location points to the folder that contains the schema files. The folder location can be a relative path from the location of the executable.





Logfile

A path to the log file.
Data Type

string

Default Value

""

Remarks

For more control over what is written to the log file, take a look at Verbosity.





Maximum Billing Tier

The MaximumBillingTier is a positive integer that serves as a multiplier of the basic price per TB. For example, if you set MaximumBillingTier to 2, the maximum cost for that query will be 2x basic price per TB.
Data Type

string

Default Value

""

Remarks

Limits the billing tier for this job. Queries that have resource usage beyond this tier will fail (without incurring a charge). If unspecified, this will be set to your project default. If your query is too compute intensive for BigQuery to complete at the standard per TB pricing tier, BigQuery returns a billingTierLimitExceeded error and an estimate of how much the query would cost. To run the query at a higher pricing tier, pass a new value for maximumBillingTier as part of the query request. The maximumBillingTier is a positive integer that serves as a multiplier of the basic price per TB. For example, if you set maximumBillingTier to 2, the maximum cost for that query will be 2x basic price per TB.





Max Log File Size

A string specifying the maximum size in bytes for a log file (ex: 10MB). When the limit is hit, a new log is created in the same folder with the date and time appended to the end.
Data Type

string

Default Value

""

Remarks

A string specifying the maximum size in bytes for a log file (ex: 10MB). When the limit is hit, a new log is created in the same folder with the date and time appended to the end. There is no limit by default. Values lower than 100kB will use 100kB as the value instead.





OAuth Access Token

The access token for connecting using OAuth.
Data Type

string

Default Value

""

Remarks

The OAuthAccessToken property is used to connect using OAuth. The OAuthAccessToken is retrieved from the OAuth server as part of the authentication process. It has a server-dependent timeout and can be reused between requests.

The access token is used in place of your username and password. The access token protects your credentials by keeping them on the server.





OAuth Client Id

The client Id assigned when you register your application with an OAuth authorization server.
Data Type

string

Default Value

""

Remarks

As part of registering an OAuth application, you will receive the OAuthClientId value, sometimes also called a consumer key, and a client secret, the OAuthClientSecret.





OAuth Client Secret

The client secret assigned when you register your application with an OAuth authorization server.
Data Type

string

Default Value

""

Remarks

As part of registering an OAuth application, you will receive the OAuthClientId, also called a consumer key. You will also receive a client secret, also called a consumer secret. Set the client secret in the OAuthClientSecret property.





OAuth JWT Cert

The JWT Certificate store.
Data Type

string

Default Value

""

Remarks

The name of the certificate store for the client certificate.

The OAuthJWTCertType field specifies the type of the certificate store specified by OAuthJWTCert. If the store is password protected, specify the password in OAuthJWTCertPassword.

OAuthJWTCert is used in conjunction with the OAuthJWTCertSubject field in order to specify client certificates. If OAuthJWTCert has a value, and OAuthJWTCertSubject is set, a search for a certificate is initiated. Please refer to the OAuthJWTCertSubject field for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:

MYA certificate store holding personal certificates with their associated private keys.
CACertifying authority certificates.
ROOTRoot certificates.
SPCSoftware publisher certificates.

In Java, the certificate store normally is a file containing certificates and optional private keys.

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).





OAuth JWT Cert Password

The password for the OAuth JWT certificate.
Data Type

string

Default Value

""

Remarks

If the certificate store is of a type that requires a password, this property is used to specify that password in order to open the certificate store.





OAuth JWT Cert Subject

The subject of the OAuth JWT certificate.
Data Type

string

Default Value

"*"

Remarks

When loading a certificate the subject is used to locate the certificate in the store.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks the first certificate in the certificate store.

The certificate subject is a comma separated list of distinguished name fields and values. For instance "CN=www.server.com, OU=test, C=US, E=support@cdata.com". Common fields and their meanings are displayed below.

FieldMeaning
CNCommon Name. This is commonly a host name like www.server.com.
OOrganization
OUOrganizational Unit
LLocality
SState
CCountry
EEmail Address

If a field value contains a comma it must be quoted.





OAuth JWT Cert Type

The type of key store containing the JWT Certificate.
Data Type

string

Default Value

""

Remarks

This property can take one of the following values:

USER - defaultFor Windows, this specifies that the certificate store is a certificate store owned by the current user. Note: This store type is not available in Java.
MACHINEFor Windows, this specifies that the certificate store is a machine store. Note: this store type is not available in Java.
PFXFILEThe certificate store is the name of a PFX (PKCS12) file containing certificates.
PFXBLOBThe certificate store is a string (base-64-encoded) representing a certificate store in PFX (PKCS12) format.
JKSFILEThe certificate store is the name of a Java key store (JKS) file containing certificates. Note: this store type is only available in Java.
JKSBLOBThe certificate store is a string (base-64-encoded) representing a certificate store in Java key store (JKS) format. Note: this store type is only available in Java.
PEMKEY_FILEThe certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate.
PEMKEY_BLOBThe certificate store is a string (base64-encoded) that contains a private key and an optional certificate.
PUBLIC_KEY_FILEThe certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate.
PUBLIC_KEY_BLOBThe certificate store is a string (base-64-encoded) that contains a PEM- or DER-encoded public key certificate.
SSHPUBLIC_KEY_FILEThe certificate store is the name of a file that contains an SSH-style public key.
SSHPUBLIC_KEY_BLOBThe certificate store is a string (base-64-encoded) that contains an SSH-style public key.
P7BFILEThe certificate store is the name of a PKCS7 file containing certificates.
PPKFILEThe certificate store is the name of a file that contains a PPK (PuTTY Private Key).
XMLFILEThe certificate store is the name of a file that contains a certificate in XML format.
XMLBLOBThe certificate store is a string that contains a certificate in XML format.





OAuth JWT Issuer

The issuer of the Java Web Token.
Data Type

string

Default Value

""

Remarks

The issuer of the Java Web Token. This is typically either the Client ID or Email Address of the OAuth Application.





OAuth JWT Subject

The user subject for which the application is requesting delegated access.
Data Type

string

Default Value

""

Remarks

The user subject for which the application is requesting delegated access. Typically, the user account name or email address.





OAuth Refresh Token

The OAuth refresh token for the corresponding OAuth access token.
Data Type

string

Default Value

""

Remarks

The OAuthRefreshToken property is used to refresh the OAuthAccessToken when using OAuth authentication.





OAuth Settings Location

The location of the settings file where OAuth values are saved when InitiateOAuth is set to GETANDREFRESH or REFRESH.
Data Type

string

Default Value

"%APPDATA%\\CData\\GoogleBigQuery Data Provider\\OAuthSettings.txt"

Remarks

When InitiateOAuth is set to GETANDREFRESH or REFRESH, the driver saves OAuth values to a settings file to avoid requiring the user to manually enter OAuth connection properties. The default OAuthSettingsLocation is a settings file located in the %AppData%\CData folder.





OAuth Verifier

The verifier code returned from the OAuth authorization URL.
Data Type

string

Default Value

""

Remarks

The verifier code returned from the OAuth authorization URL. This can be used on systems where a browser cannot be launched such as headless systems. The verifier will only be used when InitiateOAuth is set to GETANDREFRESH. Once the OAuth settings file has been generated, the verifier can be removed from the connection properties.





Offline

Use offline mode to get the data from the cache instead of the live source.
Data Type

bool

Default Value

false

Remarks

When Offline is set to TRUE, all queries execute against the cache as opposed to the live data source. In this mode, certain queries like INSERT, UPDATE, DELETE, and CACHE are not allowed.





Other

The other parameters necessary to connect to a data source, such as username and password, when applicable.
Data Type

string

Default Value

""

Remarks

The Other property is a semicolon-separated list of name-value pairs used in connection parameters specific to a data source.

Caching Configuration

CachePartial=TrueCaches only a subset of columns, which you can specify in your query.
QueryPassthrough=TruePasses the specified query to the cache database instead of using the SQL parser of the driver.

Integration and Formatting

DefaultColumnSizeSets the default length of string fields when the data source does not provide column length in the metadata. The default value is 2000.
ConvertDateTimeToGMTWhether to convert date-time values to GMT, instead of the local time of the machine.
RecordToFile=filenameRecords the underlying socket data transfer to the specified file.





Page Size

The number of results to return per page from Google BigQuery.
Data Type

string

Default Value

"100000"

Remarks

The pagesize can control the number of results returned per page from Google BigQuery. Setting a higher pagesize will cause more data to come back in a single HTTP request, but may take longer to execute. Setting a smaller pagesize will increase the number of HTTP requests to get all the data, but is generally recommended to ensure timeout exceptions do not occur.





Polling Interval

When DestinationTable is set, or AllowLargeResultSets is true, this determines the polling interval in seconds to check whether the result is ready to be retrieved.
Data Type

string

Default Value

"2"

Remarks

Only applicable when DestinationTable is set or AllowLargeResultSets is true. This property determines how long to wait between checking whether or not the query's results are ready. Very large resultsets or complex queries may take longer to process, and a low polling interval may result in may unnecessary requests being made to check the query status.





Pool Idle Timeout

The allowed idle time for a connection.
Data Type

string

Default Value

""

Remarks

The allowed idle time from when the connection is free to when the connection is released and returned to the pool. The default is 60 seconds.





Pool Max Size

The maximum connections in the pool.
Data Type

string

Default Value

"100"

Remarks

The maximum connections in the pool. The default is 100. To disable this property, set the property value to 0 or less.





Pool Wait Time

The max seconds to wait for an available connection.
Data Type

string

Default Value

""

Remarks

The max seconds to wait for a connection to become available. If a new connection request is waiting for an available connection and exceeds this time, an error is thrown. By default, new requests wait forever for an available connection.





Project Id

The ProjectId of the billing project for executing jobs.
Data Type

string

Default Value

""

Remarks

The ProjectId of the billing project for executing jobs. You can obtain the project Id in the Google APIs console: In the main menu, click API Project and copy the Id. For example: psychic-valve-137816. (Note that your domain name is not part of the Id.)

After connecting to a project, you can determine the other projects accessible to you by querying the Projects view. Set this property to the value of the NumericId field returned by this view.





Proxy Auth Scheme

The authentication type to use to authenticate to the ProxyServer proxy.
Data Type

string

Default Value

"BASIC"

Remarks

This value specifies the authentication type to use to authenticate to the HTTP proxy specified by ProxyServer and ProxyPort.

Note that the driver will use the system proxy settings by default, without further configuration needed; if you want to connect to another proxy, you will need to set ProxyAutoDetect to false, in addition to ProxyServer and ProxyPort. To authenticate, set ProxyAuthScheme and set ProxyUser and ProxyPassword, if needed.

The authentication type can be one of the following:

If you need to use another authentication type, such as SOCKS 5 authentication, see FirewallType.





Proxy Auto Detect

This indicates whether to use the system proxy settings or not. Set ProxyAutoDetect to FALSE to use custom proxy settings. This takes precedence over other proxy settings.
Data Type

bool

Default Value

true

Remarks

By default, the driver uses the system HTTP proxy. Set this to false if you want to connect to another proxy.

To connect to an HTTP proxy, see ProxyServer.

For other proxies, such as SOCKS or tunneling, see FirewallType.





Proxy Exceptions

A semicolon separated list of hosts or IPs that will be exempt from connecting through the ProxyServer .
Data Type

string

Default Value

""

Remarks

The ProxyServer will be used for all addresses, except for addresses defined in this property. Use semicolons to separate entries.

Note that the driver will use the system proxy settings by default, without further configuration needed; if you want to explicitly configure proxy exceptions for this connection, you will need to set ProxyAutoDetect to false, and configure ProxyServer and ProxyPort. To authenticate, set ProxyAuthScheme and set ProxyUser and ProxyPassword, if needed.





Proxy Password

A password to be used to authenticate to the ProxyServer proxy.
Data Type

string

Default Value

""

Remarks

This property is used to authenticate to an HTTP proxy server that supports NTLM (Windows), Kerberos, or HTTP authentication. To specify the HTTP proxy, you can set ProxyServer and ProxyPort. To specify the authentication type, set ProxyAuthScheme.

If you are using HTTP authentication, additionally set ProxyUser and ProxyPassword to HTTP proxy.

If you are using NTLM authentication, set ProxyUser and ProxyPassword to your Windows password. You may also need these to complete Kerberos authentication.

For SOCKS 5 authentication or tunneling, see FirewallType.

By default, the driver uses the system proxy. If you want to connect to another proxy, set ProxyAutoDetect to false.





Proxy Port

The TCP port the ProxyServer proxy is running on.
Data Type

string

Default Value

"80"

Remarks

The port the HTTP proxy is running on that you want to redirect HTTP traffic through. Specify the HTTP proxy in ProxyServer. For other proxy types, see FirewallType.





Proxy Server

The hostname or IP address of a proxy to route HTTP traffic through.
Data Type

string

Default Value

""

Remarks

The hostname or IP address of a proxy to route HTTP traffic through. The driver can use the HTTP, Windows (NTLM), or Kerberos authentication types to authenticate to an HTTP proxy.

If you need to connect through a SOCKS proxy or tunnel the connection, see FirewallType.

By default, the driver uses the system proxy. If you need to use another proxy, set ProxyAutoDetect to false.





Proxy SSL Type

The SSL type to use when connecting to the ProxyServer proxy.
Data Type

string

Default Value

"AUTO"

Remarks

This property determines when to use SSL for the connection to an HTTP proxy specified by ProxyServer. This value can be AUTO, ALWAYS, NEVER, or TUNNEL. The applicable values are the following:

AUTODefault setting. If the URL is an HTTPS URL, the driver will use the TUNNEL option. If the URL is an HTTP URL, the component will use the NEVER option.
ALWAYSThe connection is always SSL enabled.
NEVERThe connection is not SSL enabled.
TUNNELThe connection is through a tunneling proxy: The proxy server opens a connection to the remote host and traffic flows back and forth through the proxy.





Proxy User

A user name to be used to authenticate to the ProxyServer proxy.
Data Type

string

Default Value

""

Remarks

The ProxyUser and ProxyPassword options are used to connect and authenticate against the HTTP proxy specified in ProxyServer.

You can select one of the available authentication types in ProxyAuthScheme. If you are using HTTP authentication, set this to the username of a user recognized by the HTTP proxy. If you are using Windows or Kerberos authentication, set this property to a username in one of the following formats:

user@domain
domain\user





Pseudo Columns

Indicates whether or not to include pseudo columns as columns to the table.
Data Type

string

Default Value

""

Remarks

This setting is particularly helpful in Entity Framework, which does not allow you to set a value for a pseudo column unless it is a table column. The value of this connection setting is of the format "Table1=Column1, Table1=Column2, Table2=Column3". You can use the "*" character to include all tables and all columns; i.e., "*=*".





Query Passthrough

This option passes the query to Google BigQuery as-is.
Data Type

bool

Default Value

false

Remarks

This option passes the query to Google BigQuery as-is.





Readonly

You can use this property to enforce read-only access to Google BigQuery from the provider.
Data Type

bool

Default Value

false

Remarks

If this property is set to true, the driver will allow only SELECT queries. INSERT, UPDATE, DELETE, and stored procedure queries will cause an error to be thrown.





RTK

The runtime key used for licensing.
Data Type

string

Default Value

""

Remarks

The RTK property may be used to license a build. Please see the included licensing file to see how to set this property. The runtime key is only available if you purchased an OEM license.





SSL Server Cert

The certificate to be accepted from the server when connecting using TLS/SSL.
Data Type

string

Default Value

""

Remarks

If using a TLS/SSL connection, this property can be used to specify the TLS/SSL certificate to be accepted from the server. Any other certificate that is not trusted by the machine will be rejected.

This property can take the forms:

Description Example
A full PEM Certificate (example shortened for brevity) -----BEGIN CERTIFICATE----- MIIChTCCAe4CAQAwDQYJKoZIhv......Qw== -----END CERTIFICATE-----
A path to a local file containing the certificate C:\cert.cer
The public key (example shortened for brevity) -----BEGIN RSA PUBLIC KEY----- MIGfMA0GCSq......AQAB -----END RSA PUBLIC KEY-----
The MD5 Thumbprint (hex values can also be either space or colon separated) ecadbdda5a1529c58a1e9e09828d70e4
The SHA1 Thumbprint (hex values can also be either space or colon separated) 34a929226ae0819f2ec14b4a3d904f801cbb150d

If not specified, any certificate trusted by the machine will be accepted. Use '*' to signify to accept all certificates (not recommended for security concerns).





Tables

Restrict the tables reported to a subset of the available tables. For example: Tables=TableA,TableB,TableC.
Data Type

string

Default Value

""

Remarks

Listing the tables from some databases can be expensive. Providing a list of tables in the connection string improves the performance of the driver.

This property can also be used as an alternative to automatically listing views if you already know which ones you want to work with and there would otherwise be too many to work with.

Specify the tables you want in a comma-separated list. For example: Tables=TableA,TableB,TableC





Temp Table Dataset

The name of the dataset that will contain temporary tables when executing queries with large result sets.
Data Type

string

Default Value

"_CDataTempTableDataset"

Remarks

The name of the dataset that will contain temporary tables when executing queries with large result sets.





Temp Table Expiration Time

Time, in seconds until the temporary table expires. Set to 0 to have the table never expire.
Data Type

string

Default Value

"36000"

Remarks

Time, in seconds until the temporary table expires. Set to 0 to have the table never expire. The minimum value is 3600 (One Hour).





Timeout

The value in seconds until the timeout error is thrown, canceling the operation.
Data Type

string

Default Value

"60"

Remarks

If the Timeout property is set to 0, operations do not time out: They run until they complete successfully or encounter an error condition.

If Timeout expires and the operation is not yet complete, the driver throws an exception.





Use Connection Pooling

Enables connection pooling.
Data Type

bool

Default Value

false

Remarks

Enables connection pooling. The default is false. See Connection Pooling for information on using connection pools.





Use Legacy SQL

Specifies whether to use BigQuery's legacy SQL dialect for this query. By default, Standard SQL will be used.
Data Type

bool

Default Value

false

Remarks

If set to true, the query will use BigQuery's Legacy SQL dialect to rebuild the query. If set to false, the query will use BigQuery's standard SQL: https://cloud.google.com/bigquery/sql-reference/.
When UseLegacySQL is set to false, the values of AllowLargeResultSets is ignored. The query will be run as if AllowLargeResultSets is true.





Verbosity

The verbosity level that determines the amount of detail included in the log file.
Data Type

string

Default Value

"1"

Remarks

The verbosity level determines the amount of detail that the driver reports to the Logfile. Verbosity levels from 1 to 5 are supported. These are described below:

1Setting Verbosity to 1 will log the query, the number of rows returned by it, the start of execution and the time taken, and any errors.
2Setting Verbosity to 2 will log everything included in Verbosity 1, cache queries, and additional information about the request, if applicable, such as HTTP headers.
3Setting Verbosity to 3 will additionally log the body of the request and the response.
4Setting Verbosity to 4 will additionally log transport-level communication with the data source. This includes SSL negotiation.
5Setting Verbosity to 5 will additionally log communication with the data source and additional details that may be helpful in troubleshooting problems. This includes interface commands.

The Verbosity should not be set to greater than 1 for normal operation. Substantial amounts of data can be logged at higher verbosities, which can delay execution times.





Views

Restrict the views reported to a subset of the available tables. For example: Views=ViewsA,ViewsB,ViewsC.
Data Type

string

Default Value

""

Remarks

Listing the views from some databases can be expensive. Providing a list of views in the connection string improves the performance of the driver.

This property can also be used as an alternative to automatically listing views if you already know which ones you want to work with and there would otherwise be too many to work with.

Specify the views you want in a comma-separated list. For example: For example: Views=ViewsA,ViewsB,ViewsC





ViewsBack To Top

  1. Datasets
  2. Projects



Datasets

Lists all the accessible datasets for a given project.

Columns

Name Type Description
Id [KEY] String The fully qualified, unique, opaque Id of the dataset.
Kind String The resource type.
FriendlyName String A descriptive name for the dataset
DatasetReference_ProjectId String A unique reference to the container project.
DatasetReference_DatasetId String A unique reference to the dataset, without the project name.





Projects

Lists all the projects for the authorized user.

Columns

Name Type Description
Id [KEY] String The unique identifier of the Project
Kind String The resource type.
FriendlyName String A descriptive name for the project.
NumericId String The numeric Id of the project.
ProjectReference_ProjectId String A unique reference to the project.