This page provides a guide to Establishing a Connection to Lakebase in CData Cloud, as well as information on the available resources, and a reference to the available connection properties.

Connecting to Lakebase

Establishing a Connection shows how to authenticate to Lakebase and configure any necessary connection properties to create a database in CData Cloud

Accessing Data from CData Cloud Services

Accessing data from Lakebase through the available standard services and CData Cloud administration is documented in further details in the CData Cloud Documentation.

Connect to Lakebase by selecting the corresponding icon in the Database tab. Required properties are listed under Settings. The Advanced tab lists connection properties that are not typically required.

Connecting to Lakebase

To connect to Lakebase, set these properties:

• DatabricksInstance: The Databricks instance or server hostname, provided in the format instance-abcdef12-3456-7890-abcd-abcdef123456.database.cloud.databricks.com .
• Server: The host name or IP address of the server hosting the Lakebase database.
• Port (optional): The port of the server hosting the Lakebase database, set to 5432 by default.
• Database (optional): The database to connect to after authenticating to the Lakebase Server, set to the authenticating user's default database by default.

Authentication Schemes for Lakebase

Lakebase supports two types of OAuth-based authentication schemes for calling workspace-level APIs: OAuthClient and OAuthPKCE.

OAuthClient

OAuthClient uses the OAuth client credentials grant type. This authentication scheme requires you to perform additional configuration on your service principal in order to connect, as described in Setting Up OAuthClient Authentication.

Authentication is handled via the OAuth Client Credentials flow. This flow does not involve direct user authentication; rather, it uses credentials that apply only to the application itself. The CData Cloud uses the service principal itself to authenticate with the associated permissions being defined in the service principal.

Since no embedded OAuth credentials are provided, specifying the OAuthClient authentication scheme requires you to perform extra configuration of your service principal, as described in Setting Up OAuthClient Authentication.

Set these configuration parameters:

• AuthScheme: OAuthClient.
• OAuthClientId: The client ID (also known as the consumer key) that was assigned when you configured the service principal. This ID is required to identify the application to the OAuth authorization server during authentication.
• OAuthClientSecret: The client secret (also known as the application secret or consumer secret) that was assigned when you configured the service principal. This confidential value is used to authenticate the application to the OAuth authorization server.

OAuthPKCE

OAuthPKCE uses the OAuth code grant type with PKCE (Proof Key for Code Exchange) to guard against cross-site request forgery and authorization code injection attacks.

In this authentication scheme, authentication is handled via the use of a temporary code that the client exchanges for an access token. The code itself is obtained from the authorization server, where the user can see what information the client is requesting, and can either approve or deny the request.

Set these configuration parameters:

• AuthScheme: OAuthPKCE.
• User: The authenticating user's user ID.

Authenticating to Lakebase

Once you have set the configuration parameters required to connect to Lakebase, and the configuration parameters required for your chosen form of authentication, you can authenticate to Lakebase as described in the following sections.

Transferring OAuth Settings

1. On a device with a browser, connect using the instructions in the Desktop Applications section. After connecting, tokens are saved to the file path in OAuthSettingsLocation. The default filename is OAuthSettings.txt.

2. On the headless machine:
   1. Copy the OAuth settings file to the machine.
   2. Set the following properties:
      • OAuthSettingsLocation: Make sure this location grants read and write permissions to the driver to enable the automatic refreshing of the access token.

After setup, the driver uses the stored tokens to refresh the access token automatically. No browser or manual login is required.

Setting Up OAuthClient Authentication

Lakebase supports the OAuth 2.0 standard, which allows service accounts to access Lakebase resources directly without requiring any specific user to grant access The Cloud facilitates this OAuth exchange to obtain and refresh access tokens on the service principal's behalf.

Note: To learn more about managing OAuth connections in Lakebase, see "Authorize unattended access to Databricks resources with a service principal using OAuth" in the Databricks documentation.

Process Summary

Setting up OAuthClient authentication entails the following steps:

1. Creating and configuring a new service principal
2. Assigning permissions to the service principal
3. Creating an OAuth secret for the service principal

Create the Service Principal

To create a new service principal in a Databricks Lakebase workspace:

1. As a workspace admin, log in to the Databricks Lakebase workspace.
2. At the top bar of the workspace, click your username.
3. Select Settings.
4. Click the Identity and access tab.
5. Next to Service principals, click Manage.
6. Click Add service principal.
7. At the search box, click the drop-down arrow.
8. Select Add new.
9. Enter a name for the new service principal.
10. Click Add.

The service principal is added to both your workspace and the Databricks Lakebase account.

For further information, see Add service principals to your account.

Assign Permissions

To assign the necessary permissions to the new service principal:

1. To open the details page of the new service principal, click its name.
2. On the Configurations tab, check the box next to each entitlement that you want your service principal to have for this workspace.
3. To save the new entitlements, click Update.
4. On the Permissions tab, grant access to any Databricks users, service principals, and groups that you want to manage and use this service principal.

For further information, see Manage roles on a service principal.

Create an OAuth Secret

Before you can use OAuth to authorize access to your database resources, you must first create an OAuth secret. The OAuth secret is used to generate OAuth access tokens for authentication.

OAuth secrets have a maximum lifetime of two years. A service principal can have up to five OAuth secrets.

As either an account admin or a workspace admin:

1. At the new service principal's details page, in the Developer Service Principal section, click the Secrets tab.
2. Under OAuth secrets, click the Generate secret button.
3. Enter the desired lifetime for the secret in days, up to a maximum of 730 days (two years). The admin console displays updated details about the new service principal, including the OAuth secret and the Client ID (which is the same as the service principal's application ID).
4. Record the Secret and Client ID for later use. The secret is only revealed once, to be sure to save this information in a safe place.

Note: To learn more about managing OAuth connections in Lakebase, see "Enable or Disable OAuth" in the Databricks Lakebase documentation.

Customizing the SSL Configuration

To enable TLS, set UseSSL to True.

With this configuration, the Cloud attempts to negotiate TLS with the server. The server certificate is validated against the default system trusted certificate store. You can override how the certificate gets validated using the SSLServerCert connection property.

To specify another certificate, see the SSLServerCert connection property.

Client SSL Certificates

The Lakebase Cloud also supports setting client certificates. Set the following to connect using a client certificate.

• SSLClientCert: The name of the certificate store for the client certificate.
• SSLClientCertType: The type of key store containing the TLS/SSL client certificate.
• SSLClientCertPassword: The password for the TLS/SSL client certificate.
• SSLClientCertSubject: The subject of the TLS/SSL client certificate.

Connecting Through a Firewall or Proxy

Set the following properties:

• To use a proxy-based firewall, set FirewallType, FirewallServer, and FirewallPort.
• To tunnel the connection, set FirewallType to TUNNEL.
• To authenticate, specify FirewallUser and FirewallPassword.
• To authenticate to a SOCKS proxy, additionally set FirewallType to SOCKS5.

The Cloud models data directly from Lakebase.

Data Type Mappings

The Cloud maps types from the data source to the corresponding data type available in the schema. The table below documents these mappings.

Lakebase	CData Schema
abstime	string
aclitem	string
bigint	long
bigserial	long
bit varying	string
bit	string
boolean	bool
box	string
bytea	binary
char	string
character varying	string
character	string
cid	string
cidr	string
circle	string
date	date
daterange	string
double precision	float
gtsvector	string
inet	string
int2vector	string
int4range	string
int8range	string
integer	int
json	string
jsonb	binary
line	string
lseg	string
macaddr8	string
macaddr	string
money	decimal
name	string
numeric	decimal
numrange	string
oid	string
oidvector	string
path	string
pg_dependencies	string
pg_lsn	string
pg_ndistinct	string
pg_node_tree	string
point	string
polygon	string
real	float
refcursor	string
regclass	string
regconfig	string
regdictionary	string
regnamespace	string
regoper	string
regoperator	string
regproc	string
regprocedure	string
regrole	string
regtype	string
reltime	string
serial	int
smallint	int
smallserial	int
smgr	string
text	string
tid	string
time with time zone	string
time without time zone	time
timestamp with time zone	datetime
timestamp without time zone	datetime
tinterval	string
tsquery	string
tsrange	string
tstzrange	string
tsvector	string
txid_snapshot	string
uuid	uuid
xid	string
xml	string

Stored procedures are function-like interfaces that extend the functionality of the Cloud beyond simple SELECT/INSERT/UPDATE/DELETE operations with Lakebase.

Stored procedures accept a list of parameters, perform their intended function, and then return any relevant response data from Lakebase, along with an indication of whether the procedure succeeded or failed.

CData Cloud - Lakebase Stored Procedures

Name	Description

The connection string properties are the various options that can be used to establish a connection. This section provides a complete list of the options you can configure in the connection string for this provider. Click the links for further details.

For more information on establishing a connection, see Establishing a Connection.

Authentication

---

Property	Description
AuthScheme	Specifies the type of authentication to use when connecting to Lakebase.
Server	Provides the host name or IP address of the server hosting the Lakebase database.
Database	Provides the name of the target Lakebase database.
DatabricksInstance	The URL for UI during normal access of the Databricks console in the browser in the form dbc-(id).cloud.databricks.com .
User	Specifies the authenticating user's user ID.
Port	Provides the port number of the server hosting the Lakebase database.
Visibility	Notes whether data visibility is filtered based on specific rules or criteria.

OAuth

---

Property	Description
OAuthClientId	Specifies the client ID (also known as the consumer key) assigned to your custom OAuth application. This ID is required to identify the application to the OAuth authorization server during authentication.
OAuthClientSecret	Specifies the client secret assigned to your custom OAuth application. This confidential value is used to authenticate the application to the OAuth authorization server. (Custom OAuth applications only.).
Scope	Specifies the scope of the authenticating user's access to the application, to ensure they get appropriate access to data. If a custom OAuth application is needed, this is generally specified at the time the application is created.

SSL

---

Property	Description
SSLServerCert	Specifies the certificate to be accepted from the server when connecting using TLS/SSL.

SSH

---

Property	Description
SSHAuthMode	The authentication method used when establishing an SSH Tunnel to the service.
SSHClientCert	A certificate to be used for authenticating the SSHUser.
SSHClientCertPassword	The password of the SSHClientCert key if it has one.
SSHClientCertSubject	The subject of the SSH client certificate.
SSHClientCertType	The type of SSHClientCert private key.
SSHServer	The SSH server.
SSHPort	The SSH port.
SSHUser	The SSH user.
SSHPassword	The SSH password.
SSHServerFingerprint	The SSH server fingerprint.
UseSSH	Whether to tunnel the Lakebase connection over SSH. Use SSH.

Logging

---

Property	Description
Verbosity	Specifies the verbosity level of the log file, which controls the amount of detail logged. Supported values range from 1 to 5.

Schema

---

Property	Description
BrowsableSchemas	Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .
IgnoredSchemas	Visibility restriction filter which is used to hide schemas from the list of schemas obtained by querying metadata. For example, 'information_schema, pg_catalog'. Schema names are case sensitive.

Miscellaneous

---

Property	Description
AllowPreparedStatement	Prepares (compiles) a query statement before it is executed.
BrowsePartitions	By default, the provider exposes the super table and its partitions by metadata. You may hide sub partitions by setting this property to false.
FetchResultSetMetadata	This field sets whether the provider retrieves metadata pertaining to the schema and table name for resultset columns returned by the server.
InsertMode	Specifies the method to use when inserting bulk data. By default, the DML mode is used.
MaxRows	Specifies the maximum number of rows returned for queries that do not include either aggregation or GROUP BY.
Timeout	Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error.
TimeZone	Notifies the server about the timezone on the client with a standard SET TIMEZONE query when a connection is being opened.

This section provides a complete list of the Authentication properties you can configure in the connection string for this provider.

---

Property	Description
AuthScheme	Specifies the type of authentication to use when connecting to Lakebase.
Server	Provides the host name or IP address of the server hosting the Lakebase database.
Database	Provides the name of the target Lakebase database.
DatabricksInstance	The URL for UI during normal access of the Databricks console in the browser in the form dbc-(id).cloud.databricks.com .
User	Specifies the authenticating user's user ID.
Port	Provides the port number of the server hosting the Lakebase database.
Visibility	Notes whether data visibility is filtered based on specific rules or criteria.

Specifies the type of authentication to use when connecting to Lakebase.

Possible Values

OAuthPKCE, OAuthClient

Data Type

string

Default Value

"OAuthClient"

Remarks

Lakebase supports two authentication schemes:

• OAuthClient uses the OAuth client credentials grant type. This authentication scheme requires you to perform additional configuration on your service principal in order to connect, as described in Setting Up OAuthClient Authentication.
• OAuthPKCE uses the OAuth code grant type with PKCE (Proof Key for Code Exchange) to guard against cross-site request forgery and authorization code injection attacks.

Credentials are provided via OAuthClientId and OAuthClientSecret.

Provides the host name or IP address of the server hosting the Lakebase database.

Data Type

string

Default Value

""

Remarks

See also Database.

Provides the name of the target Lakebase database.

Data Type

string

Default Value

""

Remarks

See also Server.

The URL for UI during normal access of the Databricks console in the browser in the form dbc-(id).cloud.databricks.com .

Data Type

string

Default Value

""

Remarks

Databricks instance or server hostname, which is the URL for the UI during normal access of the Databricks console in the browser.

Specifies the authenticating user's user ID.

Data Type

string

Default Value

""

Remarks

The authenticating server requires both User and Password to validate the user's identity.

Provides the port number of the server hosting the Lakebase database.

Data Type

string

Default Value

"5432"

Remarks

If not explicitly specified, the default port number (5432) is assumed.

Notes whether data visibility is filtered based on specific rules or criteria.

Data Type

string

Default Value

""

Remarks

Visibility filtering affects the results returned by SELECT, INSERT, UPDATE, DELETE, and REFERENCES queries. By default, visibility is not enabled.

When set to SELECT, INSERT, UPDATE, DELETE, or REFERENCES, queries show results only for those tables that the current user has permissions to access.

This section provides a complete list of the OAuth properties you can configure in the connection string for this provider.

---

Property	Description
OAuthClientId	Specifies the client ID (also known as the consumer key) assigned to your custom OAuth application. This ID is required to identify the application to the OAuth authorization server during authentication.
OAuthClientSecret	Specifies the client secret assigned to your custom OAuth application. This confidential value is used to authenticate the application to the OAuth authorization server. (Custom OAuth applications only.).
Scope	Specifies the scope of the authenticating user's access to the application, to ensure they get appropriate access to data. If a custom OAuth application is needed, this is generally specified at the time the application is created.

Specifies the client ID (also known as the consumer key) assigned to your custom OAuth application. This ID is required to identify the application to the OAuth authorization server during authentication.

Data Type

string

Default Value

""

Remarks

This property is required in two cases:

• When using a custom OAuth application, such as in web-based authentication flows, service-based authentication, or certificate-based flows that require application registration.
• If the driver does not provide embedded OAuth credentials.

(When the driver provides embedded OAuth credentials, this value may already be provided by the Cloud and thus not require manual entry.)

OAuthClientId is generally used alongside other OAuth-related properties such as OAuthClientSecret and OAuthSettingsLocation when configuring an authenticated connection.

OAuthClientId is one of the key connection parameters that need to be set before users can authenticate via OAuth. You can usually find this value in your identity provider’s application registration settings. Look for a field labeled Client ID, Application ID, or Consumer Key.

While the client ID is not considered a confidential value like a client secret, it is still part of your application's identity and should be handled carefully. Avoid exposing it in public repositories or shared configuration files.

For more information on how this property is used when configuring a connection, see Establishing a Connection.

Specifies the client secret assigned to your custom OAuth application. This confidential value is used to authenticate the application to the OAuth authorization server. (Custom OAuth applications only.).

Data Type

string

Default Value

""

Remarks

This property (sometimes called the application secret or consumer secret) is required when using a custom OAuth application in any flow that requires secure client authentication, such as web-based OAuth, service-based connections, or certificate-based authorization flows. It is not required when using an embedded OAuth application.

The client secret is used during the token exchange step of the OAuth flow, when the driver requests an access token from the authorization server. If this value is missing or incorrect, authentication fails with either an invalid_client or an unauthorized_client error.

OAuthClientSecret is one of the key connection parameters that need to be set before users can authenticate via OAuth. You can obtain this value from your identity provider when registering the OAuth application.

Notes:

• This value should be stored securely and never exposed in public repositories, scripts, or unsecured environments.
• Client secrets may also expire after a set period. Be sure to monitor expiration dates and rotate secrets as needed to maintain uninterrupted access.

For more information on how this property is used when configuring a connection, see Establishing a Connection

Specifies the scope of the authenticating user's access to the application, to ensure they get appropriate access to data. If a custom OAuth application is needed, this is generally specified at the time the application is created.

Data Type

string

Default Value

""

Remarks

Scopes are set to define what kind of access the authenticating user will have; for example, read, read and write, restricted access to sensitive information. System administrators can use scopes to selectively enable access by functionality or security clearance.

When InitiateOAuth is set to GETANDREFRESH, you must use this property if you want to change which scopes are requested.

When InitiateOAuth is set to either REFRESH or OFF, you can change which scopes are requested using either this property or the Scope input.

This section provides a complete list of the SSL properties you can configure in the connection string for this provider.

---

Property	Description
SSLServerCert	Specifies the certificate to be accepted from the server when connecting using TLS/SSL.

Specifies the certificate to be accepted from the server when connecting using TLS/SSL.

Data Type

string

Default Value

""

Remarks

If you are using a TLS/SSL connection, use this property to specify the TLS/SSL certificate to be accepted from the server. If you specify a value for this property, all other certificates that are not trusted by the machine are rejected.

This property can take the following 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

Note: It is possible to use '*' to signify that all certificates should be accepted, but due to security concerns this is not recommended.

This section provides a complete list of the SSH properties you can configure in the connection string for this provider.

---

Property	Description
SSHAuthMode	The authentication method used when establishing an SSH Tunnel to the service.
SSHClientCert	A certificate to be used for authenticating the SSHUser.
SSHClientCertPassword	The password of the SSHClientCert key if it has one.
SSHClientCertSubject	The subject of the SSH client certificate.
SSHClientCertType	The type of SSHClientCert private key.
SSHServer	The SSH server.
SSHPort	The SSH port.
SSHUser	The SSH user.
SSHPassword	The SSH password.
SSHServerFingerprint	The SSH server fingerprint.
UseSSH	Whether to tunnel the Lakebase connection over SSH. Use SSH.

The authentication method used when establishing an SSH Tunnel to the service.

Possible Values

None, Password, Public_Key

Data Type

string

Default Value

"Password"

Remarks

• None: No authentication is performed. The current SSHUser value is ignored, and the connection is logged in as anonymous.
• Password: The Cloud uses the values of SSHUser and SSHPassword to authenticate the user.
• Public_Key: The Cloud uses the values of SSHUser and SSHClientCert to authenticate the user. SSHClientCert must have a private key available for this authentication method to succeed.

A certificate to be used for authenticating the SSHUser.

Data Type

string

Default Value

""

Remarks

SSHClientCert must contain a valid private key in order to use public key authentication. A public key is optional, if one is not included then the Cloud generates it from the private key. The Cloud sends the public key to the server and the connection is allowed if the user has authorized the public key.

The SSHClientCertType field specifies the type of the key store specified by SSHClientCert. If the store is password protected, specify the password in SSHClientCertPassword.

Some types of key stores are containers which may include multiple keys. By default the Cloud will select the first key in the store, but you can specify a specific key using SSHClientCertSubject.

The password of the SSHClientCert key if it has one.

Data Type

string

Default Value

""

Remarks

This property is required for SSH tunneling when using certificate-based authentication. If the SSH certificate is in a password-protected key store, provide the password using this property to access the certificate.

The subject of the SSH client 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, [email protected]". Common fields and their meanings are displayed below.

Field	Meaning
CN	Common Name. This is commonly a host name like www.server.com.
O	Organization
OU	Organizational Unit
L	Locality
S	State
C	Country
E	Email Address

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

The type of SSHClientCert private key.

Possible Values

PFXBLOB, JKSBLOB, PEMKEY_BLOB, PPKBLOB, XMLBLOB

Data Type

string

Default Value

"PEMKEY_BLOB"

Remarks

This property can take one of the following values:

Types	Description	Allowed Blob Values
MACHINE/USER		Blob values are not supported.
JKSFILE/JKSBLOB		base64-only
PFXFILE/PFXBLOB	A PKCS12-format (.pfx) file. Must contain both a certificate and a private key.	base64-only
PEMKEY_FILE/PEMKEY_BLOB	A PEM-format file. Must contain an RSA, DSA, or OPENSSH private key. Can optionally contain a certificate matching the private key.	base64 or plain text.
PPKFILE/PPKBLOB	A PuTTY-format private key created using the puttygen tool.	base64-only
XMLFILE/XMLBLOB	An XML key in the format generated by the .NET RSA class: RSA.ToXmlString(true).	base64 or plain text.

The SSH server.

Data Type

string

Default Value

""

Remarks

The SSH server.

The SSH port.

Data Type

string

Default Value

"22"

Remarks

The SSH port.

The SSH user.

Data Type

string

Default Value

""

Remarks

The SSH user.

The SSH password.

Data Type

string

Default Value

""

Remarks

The SSH password.

The SSH server fingerprint.

Data Type

string

Default Value

""

Remarks

The SSH server fingerprint.

Whether to tunnel the Lakebase connection over SSH. Use SSH.

Data Type

bool

Default Value

false

Remarks

By default the Cloud will attempt to connect directly to Lakebase. When this option is enabled, the Cloud will instead establish an SSH connection with the SSHServer and tunnel the connection to Lakebase through it.

This section provides a complete list of the Logging properties you can configure in the connection string for this provider.

---

Property	Description
Verbosity	Specifies the verbosity level of the log file, which controls the amount of detail logged. Supported values range from 1 to 5.

Specifies the verbosity level of the log file, which controls the amount of detail logged. Supported values range from 1 to 5.

Data Type

string

Default Value

"1"

Remarks

This property defines the level of detail the Cloud includes in the log file. Higher verbosity levels increase the detail of the logged information, but may also result in larger log files and slower performance due to the additional data being captured.

The default verbosity level is 1, which is recommended for regular operation. Higher verbosity levels are primarily intended for debugging purposes. For more information on each level, refer to Logging.

When combined with the LogModules property, Verbosity can refine logging to specific categories of information.

This section provides a complete list of the Schema properties you can configure in the connection string for this provider.

---

Property	Description
BrowsableSchemas	Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .
IgnoredSchemas	Visibility restriction filter which is used to hide schemas from the list of schemas obtained by querying metadata. For example, 'information_schema, pg_catalog'. Schema names are case sensitive.

Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .

Data Type

string

Default Value

""

Remarks

Listing all available database schemas can take extra time, thus degrading performance. Providing a list of schemas in the connection string saves time and improves performance.

Visibility restriction filter which is used to hide schemas from the list of schemas obtained by querying metadata. For example, 'information_schema, pg_catalog'. Schema names are case sensitive.

Data Type

string

Default Value

""

Remarks

By default, restrictions are not applied. The property is inactive when BrowsableSchemas is specified.

This section provides a complete list of the Miscellaneous properties you can configure in the connection string for this provider.

---

Property	Description
AllowPreparedStatement	Prepares (compiles) a query statement before it is executed.
BrowsePartitions	By default, the provider exposes the super table and its partitions by metadata. You may hide sub partitions by setting this property to false.
FetchResultSetMetadata	This field sets whether the provider retrieves metadata pertaining to the schema and table name for resultset columns returned by the server.
InsertMode	Specifies the method to use when inserting bulk data. By default, the DML mode is used.
MaxRows	Specifies the maximum number of rows returned for queries that do not include either aggregation or GROUP BY.
Timeout	Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error.
TimeZone	Notifies the server about the timezone on the client with a standard SET TIMEZONE query when a connection is being opened.

Prepares (compiles) a query statement before it is executed.

Data Type

bool

Default Value

true

Remarks

If True, Lakebase compiles every query statement before it is executed. If you are executing the same query repeatedly, leaving AllowPreparedStatement set to True should improve performance, since preparing the query avoids recompiling the same query over and over. However, prepared statements also require the Cloud to keep the connection active and open while the statement is prepared.

If AllowPreparedStatement is set to False, statements are parsed each time they are executed. This can be useful if you are executing many different queries only once.

By default, the provider exposes the super table and its partitions by metadata. You may hide sub partitions by setting this property to false.

Data Type

bool

Default Value

true

Remarks

This property has an effect on the server with version 10 and later.

This field sets whether the provider retrieves metadata pertaining to the schema and table name for resultset columns returned by the server.

Data Type

bool

Default Value

false

Remarks

By default, the Cloud will not request that the server provides detailed information about resultset columns like the table name or schema name. It requires issuing additional metadata queries via Cloud , and it may affect query performance essentially in some scenarios. Consider setting this property to True when you need such detailed descriptive information for the resultset columns.

Specifies the method to use when inserting bulk data. By default, the DML mode is used.

Possible Values

DML, CSVStream

Data Type

string

Default Value

"DML"

Remarks

There are only two valid options: DML and CSVStream.

When InsertMode is set to DML, the Cloud uses INSERT SQL statements to upload bulk data.

When this property is set to CSVStream, the Cloud employs the bulk upload with the COPY FROM STDIN command.

Specifies the maximum number of rows returned for queries that do not include either aggregation or GROUP BY.

Data Type

int

Default Value

-1

Remarks

The default value for this property, -1, means that no row limit is enforced unless the query explicitly includes a LIMIT clause. (When a query includes a LIMIT clause, the value specified in the query takes precedence over the MaxRows setting.)

Setting MaxRows to a whole number greater than 0 ensures that queries do not return excessively large result sets by default.

This property is useful for optimizing performance and preventing excessive resource consumption when executing queries that could otherwise return very large datasets.

Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error.

Data Type

int

Default Value

30

Remarks

The timeout applies to each individual communication with the server rather than the entire query or operation. For example, a query could continue running beyond 60 seconds if each paging call completes within the timeout limit.

Timeout is set to 60 seconds by default. To disable timeouts, set this property to 0.

Disabling the timeout allows operations to run indefinitely until they succeed or fail due to other conditions such as server-side timeouts, network interruptions, or resource limits on the server.

Note: Use this property cautiously to avoid long-running operations that could degrade performance or result in unresponsive behavior.

Notifies the server about the timezone on the client with a standard SET TIMEZONE query when a connection is being opened.

Data Type

string

Default Value

""

Remarks

The server stores time with timezone and timestamp with timezone in UTC. When the server is accepting a value without timezone specified explicitly, it uses the TimeZone for the respective adjustment to UTC.

If the TimeZone property is not set, the provider uses the client's local timezone. Setting this property can be useful when you need the server to convert to a specific timezone, which is different from the client's local timezone.

LZMA from 7Zip LZMA SDK

LZMA SDK is placed in the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute the original LZMA SDK code, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

LZMA2 from XZ SDK

Version 1.9 and older are in the public domain.

Xamarin.Forms

Xamarin SDK

The MIT License (MIT)

Copyright (c) .NET Foundation Contributors

All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

NSIS 3.10

Copyright (C) 1999-2025 Contributors THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS COMMON PUBLIC LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.

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where such changes and/or additions to the Program originate from and are distributed by that particular Contributor. A Contribution 'originates' from a Contributor if it was added to the Program by such Contributor itself or anyone acting on such Contributor's behalf. Contributions do not include additions to the Program which: (i) are separate modules of software distributed in conjunction with the Program under their own license agreement, and (ii) are not derivative works of the Program.

"Contributor" means any person or entity that distributes the Program.

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"Program" means the Contributions distributed in accordance with this Agreement.

"Recipient" means anyone who receives the Program under this Agreement, including all Contributors.

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a) Subject to the terms of this Agreement, each Contributor hereby grants Recipient a non-exclusive, worldwide, royalty-free copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, distribute and sublicense the Contribution of such Contributor, if any, and such derivative works, in source code and object code form.

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