The CData Sync App provides a straightforward way to continuously pipeline your PostgreSQL data to any database, data lake, or data warehouse, making it easily available for Analytics, Reporting, AI, and Machine Learning.
The PostgreSQL connector can be used from the CData Sync application to pull data from PostgreSQL and move it to any of the supported destinations.
The Sync App enables standards-based access to PostgreSQL databases version 7.4 and later.
For required properties, see the Settings tab.
For connection properties that are not typically required, see the Advanced tab.
The following connection properties are usually required to connect to PostgreSQL.
You can also optionally set the following:
To use standard authentication, set the AuthScheme to Password to connect to PostgreSQL with login credentials.
Then, to authenticate, set the Password associated with the authenticating user.
There are subtypes of the Password authentication scheme supported by the Sync App which must be enabled in the pg_hba.conf file on the PostgreSQL server.
See the PostgreSQL documentation for more information about authentication setup on the PostgreSQL Server.
MD5
The Sync App can authenticate by verifying the password with MD5. This authentication method must be enabled by setting the auth-method in the pg_hba.conf file to md5.
SASL
The Sync App can authenticate by verifying the password with SASL (particularly, SCRAM-SHA-256). This authentication method must be enabled by setting the auth-method in the pg_hba.conf file to scram-sha-256.
Note: Microsoft has rebranded Azure AD as Entra ID. In topics that require the user to interact with the Entra ID Admin site, we use the same names Microsoft does. However, there are still CData connection properties whose names or values reference "Azure AD".
Microsoft Entra ID is a multi-tenant, cloud-based identity and access management platform. It supports OAuth-based authentication flows that enable the driver to access PostgreSQL endpoints securely.
Authentication to Entra ID via a web application always requires that you first create and register a custom OAuth application. This enables your application to define its own redirect URI, manage credential scope, and comply with organization-specific security policies.
For full instructions on how to create and register a custom OAuth application, see Creating an Entra ID (Azure AD) Application.
After setting AuthScheme to AzureAD, the steps to authenticate vary, depending on the environment. For details on how to connect from desktop applications, web-based workflows, or headless systems, see the following sections.
Note: Azure PostgreSQL Flexible servers are not supported. Only Azure PostgreSQL Single Server instances are supported.
Ensure that an Active Directory admin has been set in the Azure PostgreSQL instance (Active Directory admin > Set admin).
Next, set the following to connect:
Note: Microsoft has rebranded Azure AD as Entra ID. In topics that require the user to interact with the Entra ID Admin site, we use the same names Microsoft does. However, there are still CData connection properties whose names or values reference "Azure AD".
Service principals are security objects within a Microsoft Entra ID (Azure AD) application that define what that application can do within a specific tenant.
Service principals are created in the Entra admin center, also accessible through the Azure portal.
As part of the creation process we also specify whether the service principal will access Entra resources via a client secret or a certificate.
Depending on the service you are connecting to, a tenant administrator may need to enable Service Principal authentication or assign the Service Principal to the appropriate roles or security groups.
Instead of being tied to a particular user, service principal permissions are based on the roles assigned to them. These roles determine which resources the application can access and which operations it can perform.
When authenticating using a service principal, you must register an application with an Entra tenant, as described in Creating a Service Principal App in Entra ID (Azure AD).
This subsection describes properties you must set before you can connect. These vary, depending on whether you will authenticate via a client secret or a certificate.
To authenticate directly to Azure Active Directory using your Azure credentials, specify the following connection properties:
For a PFX file, set these properties instead:
If you are running PostgreSQL on an Azure VM and want to automatically obtain Managed Service Identity (MSI) credentials to connect, set AuthScheme to AzureMSI.
If your VM has multiple user-assigned managed identities, you must also specify OAuthClientId.
To obtain the credentials for an IAM user:
To obtain the credentials for your AWS root account:
To authenticate as an AWS role, set these properties:
If multi-factor authentication is required, specify the following:
Note: If you want to control the duration of the temporary credentials, set the TemporaryTokenDuration property (default: 3600 seconds).
Note: In some circumstances it might be preferable to use an IAM role for authentication, rather than the direct security credentials of an AWS root user. If you are specifying the AWSAccessKey and AWSSecretKey of an AWS root user, you cannot use roles.
Set AuthScheme to AwsEC2Roles.
If you are using the Sync App from an EC2 Instance and have an IAM Role assigned to the instance, you can use the IAM Role to authenticate. Since the Sync App automatically obtains your IAM Role credentials and authenticates with them, it is not necessary to specify AWSAccessKey and AWSSecretKey.
If you are also using an IAM role to authenticate, you must additionally specify the following:
The PostgreSQL Sync App now supports IMDSv2. Unlike IMDSv1, the new version requires an authentication token. Endpoints and response are the same in both versions.
In IMDSv2, the PostgreSQL Sync App first attempts to retrieve the IMDSv2 metadata token and then uses it to call AWS metadata endpoints. If it is unable to retrieve the token, the Sync App reverts to IMDSv1.
The authentication with Kerberos is initiated by PostgreSQL Server when the CData Sync App is trying to connect to it. You should setup Kerberos on the PostgreSQL Server to activate this authentication method. Once you have Kerberos authentication setup on the PostgreSQL Server, see Using Kerberos for details on how to authenticate with Kerberos by the Sync App.
Note: Microsoft has rebranded Azure AD as Entra ID. In topics that require the user to interact with the Entra ID Admin site, we use the same names Microsoft does. However, there are still CData connection properties whose names or values reference "Azure AD".
PostgreSQL supports Service Principal-based authentication, which is role-based. This means that the Service Principal's permissions are determined by the roles assigned to it. The roles specify what resources the Service Principal can access and which operations it can perform.
If you want to use a Service Principal to authenticate to PostgreSQL, you must create a custom application in Microsoft Entra ID.
To enable Service Principal authentication:
Note: Since the embedded OAuth credentials authenticate on a per-user basis, you cannot use them in a client authentication flow. You must always create a custom OAuth application to use client credentials.
Authenticating to PostgreSQL via Kerberos requires you to define authentication properties and to choose how Kerberos should retrieve authentication tickets.
The Sync App provides three ways to retrieve the required Kerberos ticket, depending on whether or not the KRB5CCNAME and/or KerberosKeytabFile variables exist in your environment.
MIT Kerberos Credential Cache File
This option enables you to use the MIT Kerberos Ticket Manager or kinit command to get tickets. With this option there is no need to set the User or Password connection properties.
This option requires that KRB5CCNAME has been created in your system.
To enable ticket retrieval via MIT Kerberos Credential Cache Files:
If the ticket is successfully obtained, the ticket information appears in Kerberos Ticket Manager and is stored in the credential cache file.
The Sync App uses the cache file to obtain the Kerberos ticket to connect to PostgreSQL.
Note: If you would prefer not to edit KRB5CCNAME, you can use the KerberosTicketCache property to set the file path manually. After this is set, the Sync App uses the specified cache file to obtain the Kerberos ticket to connect to PostgreSQL.
Keytab File
If your environment lacks the KRB5CCNAME environment variable, you can retrieve a Kerberos ticket using a Keytab File.
To use this method, set the User property to the desired username, and set the KerberosKeytabFile property to a file path pointing to the keytab file associated with the user.
User and Password
If your environment lacks the KRB5CCNAME environment variable and the KerberosKeytabFile property has not been set, you can retrieve a ticket using a user and password combination.
To use this method, set the User and Password properties to the user/password combination that you use to authenticate with PostgreSQL.
To enable this kind of cross-realm authentication, set the KerberosRealm and KerberosKDC properties to the values required for user authentication. Also, set the KerberosServiceRealm and KerberosServiceKDC properties to the values required to obtain the service ticket.
CData Sync can use logical replication configured in PostgreSql to incrementally update your destination table. PostgreSQL uses logical decoding to surface the contents of the write-ahead logs, which track data changes in the database, into a readable format. Those changes are read by Sync and pushed into the destination.
SELECT pg_create_logical_replication_slot('cdatasync_replication_slot', 'test_decoding');
Note: The slot name'cdatasync_replication_slot' is an example and can be susbstituted with any name. You will need this slot name when creating your Job in Sync. It is important that this slot is only used by Sync since changes are consumed when reading from the slot. ALTER ROLE <postgres-user> WITH REPLICATION;Logical Replication allows Sync to track deleted records when the source table has a primary key. If the source table does not have a primary key, Sync will not be able to retrieve deleted records.
This section details a selection of advanced features of the PostgreSQL Sync App.
Use SSL Configuration to adjust how Sync App handles TLS/SSL certificate negotiations. You can choose from various certificate formats;. For further information, see the SSLServerCert property under "Connection String Options" .
Configure the Sync App for compliance with Firewall and Proxy, including Windows proxies. You can also set up tunnel connections.
To enable TLS, set UseSSL to True.
With this configuration, the Sync App 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.
The PostgreSQL Sync App also supports setting client certificates. Set the following to connect using a client certificate.
Set the following properties:
In addition to modeling data directly from PostgreSQL, the CData Sync App also includes a few built in stored procedures designed for assisting with OAuth connections against Azure hosted SQL Server. The stored procedures are listed here.
The Sync App maps types from the data source to the corresponding data type available in the schema. The table below documents these mappings.
| PostgreSQL | 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 Sync App beyond simple SELECT/INSERT/UPDATE/DELETE operations with PostgreSQL.
Stored procedures accept a list of parameters, perform their intended function, and then return any relevant response data from PostgreSQL, along with an indication of whether the procedure succeeded or failed.
| Name | Description |
| GetAdminConsentURL | Gets the admin consent URL that must be opened separately by an admin of a given domain to grant access to your application. Only needed when using custom OAuth credentials. |
Gets the admin consent URL that must be opened separately by an admin of a given domain to grant access to your application. Only needed when using custom OAuth credentials.
| Name | Type | Description |
| CallbackUrl | String | The URL the user will be redirected to after authorizing your application. This value must match the Reply URL in the Azure AD app settings. |
| State | String | The same value for state that you sent when you requested the authorization code. |
| Name | Type | Description |
| URL | String | The authorization URL, entered into a Web browser to obtain the verifier token and authorize your app. |
Gets an authentication token from Azure Active Directory.
| Name | Type | Description |
| AuthMode | String |
The allowed values are APP, WEB. The default value is APP. |
| Verifier | String | A verifier returned by the service that must be input to return the access token. Needed only when using the Web auth mode. Obtained by navigating to the URL returned in GetOAuthAuthorizationUrl. |
| Scope | String |
The default value is https://ossrdbms-aad.database.windows.net/.default offline_access. |
| CallbackUrl | String | |
| State | String | Indicates any state which may be useful to your application upon receipt of the response. Your application receives the same value it sent, as this parameter makes a round-trip to the AzureDataCatalog authorization server and back. Uses include redirecting the user to the correct resource in your site, nonces, and cross-site-request-forgery mitigations. |
| Prompt | String | Defaults to 'select_account' which prompts the user to select account while authenticating. If set to 'None', the user will not be prompted. |
| AccessType | String | Indicates if your application needs to access a Google API when the user is not present at the browser. This parameter defaults to OFFLINE. If your application needs to refresh access tokens when the user is not present at the browser, then use OFFLINE. This will result in your application obtaining a refresh token the first time your application exchanges an authorization code for a user.
The allowed values are ONLINE, OFFLINE. The default value is OFFLINE. |
| Name | Type | Description |
| OAuthAccessToken | String | The authentication token returned from Azure Active Directory. This can be used in subsequent calls to other operations for this particular service. |
| OAuthRefreshToken | String | This is the same as the access token. |
| ExpiresIn | String | The remaining lifetime on the access token. -1 denotes that it will not expire. |
Gets an authorization URL from the data source. The authorization URL can be used to generate a verifier required to obtain the OAuth token.
| Name | Type | Description |
| CallbackURL | String | The URL the user will be redirected to after authorizing your application. |
| Scope | String |
The default value is https://ossrdbms-aad.database.windows.net/.default offline_access. |
| State | String | This field indicates any state that may be useful to your application upon receipt of the response. Your application receives the same value it sent, as this parameter makes a round-trip to Dynamics authorization server and back. Uses include redirecting the user to the correct resource in your site, using nonces, and mitigating cross-site request forgery. |
| Prompt | String | Defaults to 'select_account' which prompts the user to select account while authenticating. If set to 'None', the user will not be prompted. |
| AccessType | String | Indicates if your application needs to access a Google API when the user is not present at the browser. This parameter defaults to OFFLINE. If your application needs to refresh access tokens when the user is not present at the browser, then use OFFLINE. This will result in your application obtaining a refresh token the first time your application exchanges an authorization code for a user.
The allowed values are ONLINE, OFFLINE. The default value is OFFLINE. |
| Name | Type | Description |
| Url | String | The authorization url that will need to be opened for the user to authorize your app. |
Refreshes the OAuth access token used for authentication with Azure Active Directory.
| Name | Type | Description |
| OAuthRefreshToken | String | Set this to the token value that expired. |
| Name | Type | Description |
| OAuthAccessToken | String | The authentication token returned from Azure Active Directory. This can be used in subsequent calls to other operations for this particular service. |
| OAuthRefreshToken | String | This is the same as the access token. |
| ExpiresIn | String | The remaining lifetime on the access token. |
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.
| Property | Description |
| AuthScheme | The scheme used for authentication. If this property is left blank, the default authentication is used. |
| Server | The host name or IP address of the server. |
| Database | The name of the PostgreSQL database. |
| User | Specifies the authenticating user's user ID. |
| Password | Specifies the authenticating user's password. |
| Port | The port number of the PostgreSQL server. |
| UseSSL | This property determines the configuration of SSL. When SSL is enabled, an encrypted connection is established between the user and the server, ensuring that data transmitted over the network remains secure and protected from interruption. |
| Visibility | Filters metadata for the user's permitted tables as a comma-separated list of queries. For example, to restrict visibility for SELECT and INSERT queries, specify 'SELECT,INSERT'. Permitted values: SELECT, INSERT, UPDATE, DELETE. |
| Property | Description |
| AWSAccessKey | Specifies your AWS account access key. This value is accessible from your AWS security credentials page. |
| AWSSecretKey | Your AWS account secret key. This value is accessible from your AWS security credentials page. |
| AWSRoleARN | The Amazon Resource Name of the role to use when authenticating. |
| AWSExternalId | A unique identifier that might be required when you assume a role in another account. |
| Property | Description |
| AzureTenant | Identifies the PostgreSQL tenant being used to access data. Accepts either the tenant's domain name (for example, contoso.onmicrosoft.com ) or its directory (tenant) ID. |
| 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. |
| Property | Description |
| OAuthJWTCert | Supplies the name of the client certificate's JWT Certificate store. |
| OAuthJWTCertType | Identifies the type of key store containing the JWT Certificate. |
| OAuthJWTCertPassword | Provides the password for the OAuth JWT certificate used to access a password-protected certificate store. If the certificate store does not require a password, leave this property blank. |
| OAuthJWTCertSubject | Identifies the subject of the OAuth JWT certificate used to locate a matching certificate in the store. Supports partial matches and the wildcard '*' to select the first certificate. |
| Property | Description |
| KerberosKDC | Identifies the Kerberos Key Distribution Center (KDC) service used to authenticate the user. (SPNEGO or Windows authentication only). |
| KerberosRealm | Identifies the Kerberos Realm used to authenticate the user. |
| KerberosSPN | Identifies the service principal name (SPN) for the Kerberos Domain Controller. |
| KerberosUser | Confirms the principal name for the Kerberos Domain Controller, which uses the format host/user@realm. |
| KerberosKeytabFile | Identifies the Keytab file containing your pairs of Kerberos principals and encrypted keys. |
| KerberosServiceRealm | Identifies the service's Kerberos realm. (Cross-realm authentication only). |
| KerberosServiceKDC | Identifies the service's Kerberos Key Distribution Center (KDC). |
| KerberosTicketCache | Specifies the full file path to an MIT Kerberos credential cache file. |
| Property | Description |
| SSLClientCert | Specifies the TLS/SSL client certificate store for SSL Client Authentication (2-way SSL). This property works in conjunction with other SSL-related properties to establish a secure connection. |
| SSLClientCertType | Specifies the type of key store containing the TLS/SSL client certificate for SSL Client Authentication. Choose from a variety of key store formats depending on your platform and certificate source. |
| SSLClientCertPassword | Specifes the password required to access the TLS/SSL client certificate store. Use this property if the selected certificate store type requires a password for access. |
| SSLClientCertSubject | Specifes the subject of the TLS/SSL client certificate to locate it in the certificate store. Use a comma-separated list of distinguished name fields, such as CN=www.server.com, C=US. The wildcard * selects the first certificate in the store. |
| SSLServerCert | Specifies the certificate to be accepted from the server when connecting using TLS/SSL. |
| 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 PostgreSQL connection over SSH. Use SSH. |
| Property | Description |
| FirewallType | Specifies the protocol the provider uses to tunnel traffic through a proxy-based firewall. |
| FirewallServer | Identifies the IP address, DNS name, or host name of a proxy used to traverse a firewall and relay user queries to network resources. |
| FirewallPort | Specifies the TCP port to be used for a proxy-based firewall. |
| FirewallUser | Identifies the user ID of the account authenticating to a proxy-based firewall. |
| FirewallPassword | Specifies the password of the user account authenticating to a proxy-based firewall. |
| Property | Description |
| LogModules | Specifies the core modules to include in the log file. Use a semicolon-separated list of module names. By default, all modules are logged. |
| Property | Description |
| Location | Specifies the location of a directory containing schema files that define tables, views, and stored procedures. Depending on your service's requirements, this may be expressed as either an absolute path or a relative path. |
| BrowsableSchemas | Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC . |
| Tables | Optional setting that restricts the tables reported to a subset of all available tables. For example, Tables=TableA,TableB,TableC . |
| Views | Optional setting that restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC . |
| IgnoredSchemas | A visibility restriction filter used to hide schemas from a list that is obtained by querying metadata, such as information_schema and pg_catalog. It's important to remember that schema names are case-sensitive. |
| Property | Description |
| AllowPreparedStatement | Prepare a query statement before its execution. |
| BrowsePartitions | Determines whether to expose the super table and its associated partitions through metadata. |
| FetchResultSetMetadata | This property determines whether the provider retrieves metadata related to the schema and table names for result set columns returned by the server. |
| IncludeTableTypes | When this property is set to true, the provider will query the types of individual tables and views available in the database. |
| 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. |
| Other | Specifies advanced connection properties for specialized scenarios. Use this property only under the guidance of our Support team to address specific issues. |
| QueryPassthrough | This option passes the query to the PostgreSQL server as is. |
| Timeout | Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. |
| TimeZone | Sets the time zone the server will use to return datetime/timestamp columns. The value should be specified according to POSIX time zone specification. |
This section provides a complete list of the Authentication properties you can configure in the connection string for this provider.
| Property | Description |
| AuthScheme | The scheme used for authentication. If this property is left blank, the default authentication is used. |
| Server | The host name or IP address of the server. |
| Database | The name of the PostgreSQL database. |
| User | Specifies the authenticating user's user ID. |
| Password | Specifies the authenticating user's password. |
| Port | The port number of the PostgreSQL server. |
| UseSSL | This property determines the configuration of SSL. When SSL is enabled, an encrypted connection is established between the user and the server, ensuring that data transmitted over the network remains secure and protected from interruption. |
| Visibility | Filters metadata for the user's permitted tables as a comma-separated list of queries. For example, to restrict visibility for SELECT and INSERT queries, specify 'SELECT,INSERT'. Permitted values: SELECT, INSERT, UPDATE, DELETE. |
The scheme used for authentication. If this property is left blank, the default authentication is used.
Along with the Password and User fields, the AuthScheme property is used for server authentication. Use the following options to select your authentication scheme:
The host name or IP address of the server.
The host name or IP of the server hosting the PostgreSQL Database. If not set, the default value "localhost" is used.
The name of the PostgreSQL database.
When connecting to the PostgreSQL server, it is strongly recommended to set this property, but if it is not set, use the user's default database.
To limit access to the database, you can set up permissions and controls by using roles, privileges, and authentication settings.
Specifies the authenticating user's user ID.
The authenticating server requires both User and Password to validate the user's identity.
Specifies the authenticating user's password.
The authenticating server requires both User and Password to validate the user's identity.
This property determines the configuration of SSL. When SSL is enabled, an encrypted connection is established between the user and the server, ensuring that data transmitted over the network remains secure and protected from interruption.
This property determines whether the Sync App will try to establish secure TLS/SSL connections to the server. By default, the Sync App validates the server's certificate against the trusted certificate stored on the system, ensuring a secure and authenticated connection. To use a different certificate, the SSLServerCert parameter can be specified.
Filters metadata for the user's permitted tables as a comma-separated list of queries. For example, to restrict visibility for SELECT and INSERT queries, specify 'SELECT,INSERT'. Permitted values: SELECT, INSERT, UPDATE, DELETE.
By default, visibility filtering is not enabled. Filtering values are not case-sensitive.
This section provides a complete list of the AWS Authentication properties you can configure in the connection string for this provider.
| Property | Description |
| AWSAccessKey | Specifies your AWS account access key. This value is accessible from your AWS security credentials page. |
| AWSSecretKey | Your AWS account secret key. This value is accessible from your AWS security credentials page. |
| AWSRoleARN | The Amazon Resource Name of the role to use when authenticating. |
| AWSExternalId | A unique identifier that might be required when you assume a role in another account. |
Specifies your AWS account access key. This value is accessible from your AWS security credentials page.
To find your AWS account access key:
Your AWS account secret key. This value is accessible from your AWS security credentials page.
Your AWS account secret key. This value is accessible from your AWS security credentials page:
The Amazon Resource Name of the role to use when authenticating.
When authenticating outside of AWS, it is common to use a Role for authentication instead of your direct AWS account credentials. Entering the AWSRoleARN will cause the CData Sync App to perform a role based authentication instead of using the AWSAccessKey and AWSSecretKey directly. The AWSAccessKey and AWSSecretKey must still be specified to perform this authentication. You cannot use the credentials of an AWS root user when setting RoleARN. The AWSAccessKey and AWSSecretKey must be those of an IAM user.
A unique identifier that might be required when you assume a role in another account.
A unique identifier that might be required when you assume a role in another account.
This section provides a complete list of the Azure Authentication properties you can configure in the connection string for this provider.
| Property | Description |
| AzureTenant | Identifies the PostgreSQL tenant being used to access data. Accepts either the tenant's domain name (for example, contoso.onmicrosoft.com ) or its directory (tenant) ID. |
Identifies the PostgreSQL tenant being used to access data. Accepts either the tenant's domain name (for example, contoso.onmicrosoft.com ) or its directory (tenant) ID.
A tenant is a digital container for your organization's users and resources, managed through Microsoft Entra ID (formerly Azure AD). Each tenant is associated with a unique directory ID, and often with a custom domain (for example, microsoft.com or contoso.onmicrosoft.com).
To find the directory (tenant) ID in the Microsoft Entra Admin Center, navigate to Microsoft Entra ID > Properties and copy the value labeled "Directory (tenant) ID".
This property is required in the following cases:
You can provide the tenant value in one of two formats:
Specifying the tenant explicitly ensures that the authentication request is routed to the correct directory, which is especially important when a user belongs to multiple tenants or when using service principal–based authentication.
If this value is omitted when required, authentication may fail or connect to the wrong tenant. This can result in errors such as unauthorized or resource not found.
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.
This property is required in two cases:
(When the driver provides embedded OAuth credentials, this value may already be provided by the Sync App 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.).
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:
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.
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 JWT OAuth properties you can configure in the connection string for this provider.
| Property | Description |
| OAuthJWTCert | Supplies the name of the client certificate's JWT Certificate store. |
| OAuthJWTCertType | Identifies the type of key store containing the JWT Certificate. |
| OAuthJWTCertPassword | Provides the password for the OAuth JWT certificate used to access a password-protected certificate store. If the certificate store does not require a password, leave this property blank. |
| OAuthJWTCertSubject | Identifies the subject of the OAuth JWT certificate used to locate a matching certificate in the store. Supports partial matches and the wildcard '*' to select the first certificate. |
Supplies the name of the client certificate's JWT Certificate store.
The OAuthJWTCertType field specifies the type of the certificate store specified in OAuthJWTCert. If the store is password-protected, use OAuthJWTCertPassword to supply the password..
OAuthJWTCert is used in conjunction with the OAuthJWTCertSubject field in order to specify client certificates. If OAuthJWTCert has a value, and OAuthJWTCertSubject is set, the CData Sync App initiates a search for a certificate. For further information, see OAuthJWTCertSubject.
Designations of certificate stores are platform-dependent.
Notes
Identifies the type of key store containing the JWT Certificate.
| Value | Description | Notes |
| USER | A certificate store owned by the current user. | Only available in Windows. |
| MACHINE | A machine store. | Not available in Java or other non-Windows environments. |
| PFXFILE | A PFX (PKCS12) file containing certificates. | |
| PFXBLOB | A string (base-64-encoded) representing a certificate store in PFX (PKCS12) format. | |
| JKSFILE | A Java key store (JKS) file containing certificates. | Only available in Java. |
| JKSBLOB | A string (base-64-encoded) representing a certificate store in Java key store (JKS) format. | Only available in Java. |
| PEMKEY_FILE | A PEM-encoded file that contains a private key and an optional certificate. | |
| PEMKEY_BLOB | A string (base64-encoded) that contains a private key and an optional certificate. | |
| PUBLIC_KEY_FILE | A file that contains a PEM- or DER-encoded public key certificate. | |
| PUBLIC_KEY_BLOB | A string (base-64-encoded) that contains a PEM- or DER-encoded public key certificate. | |
| SSHPUBLIC_KEY_FILE | A file that contains an SSH-style public key. | |
| SSHPUBLIC_KEY_BLOB | A string (base-64-encoded) that contains an SSH-style public key. | |
| P7BFILE | A PKCS7 file containing certificates. | |
| PPKFILE | A file that contains a PPK (PuTTY Private Key). | |
| XMLFILE | A file that contains a certificate in XML format. | |
| XMLBLOB | Astring that contains a certificate in XML format. | |
| BCFKSFILE | A file that contains an Bouncy Castle keystore. | |
| BCFKSBLOB | A string (base-64-encoded) that contains a Bouncy Castle keystore. | |
| GOOGLEJSON | A JSON file containing the service account information. | Only valid when connecting to a Google service. |
| GOOGLEJSONBLOB | A string that contains the service account JSON. | Only valid when connecting to a Google service. |
Provides the password for the OAuth JWT certificate used to access a password-protected certificate store. If the certificate store does not require a password, leave this property blank.
This property specifies the password needed to open a password-protected certificate store. To determine if a password is necessary, refer to the documentation or configuration for your specific certificate store.
This is not required when using the GOOGLEJSON OAuthJWTCertType. Google JSON keys are not encrypted.
Identifies the subject of the OAuth JWT certificate used to locate a matching certificate in the store. Supports partial matches and the wildcard '*' to select the first certificate.
The value of this property is used to locate a matching certificate in the store. The search process works as follows:
You can set the value to '*' to automatically select the first certificate in the store. The certificate subject is a comma-separated list of distinguished name fields and values. For example: CN=www.server.com, OU=test, C=US, [email protected].
Common fields include:
| 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, enclose it in quotes. For example: "O=ACME, Inc.".
This section provides a complete list of the Kerberos properties you can configure in the connection string for this provider.
| Property | Description |
| KerberosKDC | Identifies the Kerberos Key Distribution Center (KDC) service used to authenticate the user. (SPNEGO or Windows authentication only). |
| KerberosRealm | Identifies the Kerberos Realm used to authenticate the user. |
| KerberosSPN | Identifies the service principal name (SPN) for the Kerberos Domain Controller. |
| KerberosUser | Confirms the principal name for the Kerberos Domain Controller, which uses the format host/user@realm. |
| KerberosKeytabFile | Identifies the Keytab file containing your pairs of Kerberos principals and encrypted keys. |
| KerberosServiceRealm | Identifies the service's Kerberos realm. (Cross-realm authentication only). |
| KerberosServiceKDC | Identifies the service's Kerberos Key Distribution Center (KDC). |
| KerberosTicketCache | Specifies the full file path to an MIT Kerberos credential cache file. |
Identifies the Kerberos Key Distribution Center (KDC) service used to authenticate the user. (SPNEGO or Windows authentication only).
The Kerberos properties are used when using SPNEGO or Windows Authentication. The Sync App requests session tickets and temporary session keys from the Kerberos KDC service, which is usually co-located with the domain controller.
If KerberosKDC is not specified, the Sync App tries to detect these properties automatically from the following locations:
Identifies the Kerberos Realm used to authenticate the user.
A realm is a logical network, similar to a domain, that defines a group of systems under the same master KDC. Some realms are hierarchical, where one realm is a superset of the other realm, but usually realms are nonhierarchical (or “direct”) and the mapping between the two realms must be defined. Kerberos cross-realm authentication enables authentication across realms. Each realm only needs to have a principal entry for the other realm in its KDC.
The Kerberos properties are used when using SPNEGO or Windows Authentication. The Sync App requests session tickets and temporary session keys from the Kerberos KDC service, which is usually co-located with the domain controller. The Kerberos Realm can be configured by an administrator to be any string, but it is usually based on the domain name.
If Kerberos Realm is not specified, the Sync App will attempt to detect these properties automatically from the following locations:
Identifies the service principal name (SPN) for the Kerberos Domain Controller.
If the SPN on the Kerberos Domain Controller is not the same as the URL that you are authenticating to, use this property to set the SPN to the KDC's URL.
Confirms the principal name for the Kerberos Domain Controller, which uses the format host/user@realm.
If there is a Kerberos principal, that Kerberos principal name should always be used to authenticate to the database.
Identifies the Keytab file containing your pairs of Kerberos principals and encrypted keys.
A keytab (short for “key table”) stores long-term keys for one or more principals. In most cases, end users authenticate to the KDC using their client secret (password). However, in situations where authentication or re-authentication happen using automated scripts and applications, it may be more efficient to use a keytab, which sends passwords to the KDC in encrypted form, automatically.
Keytabs are normally represented by files in a standard format, and named using the format type:value. Usually type is FILE and value is the absolute pathname of the file. The other possible value for type is MEMORY, which indicates a temporary keytab stored in the memory of the current process.
A keytab contains one or more entries, where each entry consists of a timestamp (indicating when the entry was written to the keytab), a principal name, a key version number, an encryption type, and the encryption key itself. They can be generated using kutil.
For example:
[admin@myhost]# ktutil ktutil: addent -password -p starlord/[email protected] -k 1 -e aes256-cts-hmac-sha1-96 Password for starlord/myhost.galaxy.com: ktutil: addent -password -p starlord/[email protected] -k 1 -e aes128-cts-hmac-sha1-96 Password for starlord/myhost.galaxy.com: ktutil: addent -password -p starlord/[email protected] -k 1 -e des3-cbc-sha1 Password for starlord/myhost.galaxy.com: ktutil: wkt /path/to/starlord.keytab
Note: You must create principals for all authentication methods (encryption types) you want to support.
To display a keytab, use klist -k.
Identifies the service's Kerberos realm. (Cross-realm authentication only).
The KerberosServiceRealm is used to specify a service's KerberosRealm when using cross-realm Kerberos authentication.
In most cases, a single realm and KDC machine are used to perform the Kerberos authentication, which means that this property would not be required. However, the property is available for complex setups where a different realm and KDC machine are used to obtain an authentication ticket (AS request) and a service ticket (TGS request).
Identifies the service's Kerberos Key Distribution Center (KDC).
The KerberosServiceKDC is used to specify the service Kerberos KDC when using cross-realm Kerberos authentication.
In most cases, a single realm and KDC machine are used to perform the Kerberos authentication, which means that this property would not be required. However, the property is available for complex setups where a different realm and KDC machine are used to obtain an authentication ticket (AS request) and a service ticket (TGS request).
Specifies the full file path to an MIT Kerberos credential cache file.
Set this property if you want to use a credential cache file that was created using the MIT Kerberos Ticket Manager or kinit command.
This section provides a complete list of the SSL properties you can configure in the connection string for this provider.
| Property | Description |
| SSLClientCert | Specifies the TLS/SSL client certificate store for SSL Client Authentication (2-way SSL). This property works in conjunction with other SSL-related properties to establish a secure connection. |
| SSLClientCertType | Specifies the type of key store containing the TLS/SSL client certificate for SSL Client Authentication. Choose from a variety of key store formats depending on your platform and certificate source. |
| SSLClientCertPassword | Specifes the password required to access the TLS/SSL client certificate store. Use this property if the selected certificate store type requires a password for access. |
| SSLClientCertSubject | Specifes the subject of the TLS/SSL client certificate to locate it in the certificate store. Use a comma-separated list of distinguished name fields, such as CN=www.server.com, C=US. The wildcard * selects the first certificate in the store. |
| SSLServerCert | Specifies the certificate to be accepted from the server when connecting using TLS/SSL. |
Specifies the TLS/SSL client certificate store for SSL Client Authentication (2-way SSL). This property works in conjunction with other SSL-related properties to establish a secure connection.
This property specifies the client certificate store for SSL Client Authentication. Use this property alongside SSLClientCertType, which defines the type of the certificate store, and SSLClientCertPassword, which specifies the password for password-protected stores. When SSLClientCert is set and SSLClientCertSubject is configured, the driver searches for a certificate matching the specified subject.
Certificate store designations vary by platform. On Windows, certificate stores are identified by names such as MY (personal certificates), while in Java, the certificate store is typically a file containing certificates and optional private keys.
The following are designations of the most common User and Machine certificate stores in Windows:
| MY | A certificate store holding personal certificates with their associated private keys. |
| CA | Certifying authority certificates. |
| ROOT | Root certificates. |
| SPC | Software publisher certificates. |
For PFXFile types, set this property to the filename. For PFXBlob types, set this property to the binary contents of the file in PKCS12 format.
Specifies the type of key store containing the TLS/SSL client certificate for SSL Client Authentication. Choose from a variety of key store formats depending on your platform and certificate source.
This property determines the format and location of the key store used to provide the client certificate. Supported values include platform-specific and universal key store formats. The available values and their usage are:
| USER - default | For Windows, this specifies that the certificate store is a certificate store owned by the current user. Note that this store type is not available in Java. |
| MACHINE | For Windows, this specifies that the certificate store is a machine store. Note that this store type is not available in Java. |
| PFXFILE | The certificate store is the name of a PFX (PKCS12) file containing certificates. |
| PFXBLOB | The certificate store is a string (base-64-encoded) representing a certificate store in PFX (PKCS12) format. |
| JKSFILE | The certificate store is the name of a Java key store (JKS) file containing certificates. Note that this store type is only available in Java. |
| JKSBLOB | The certificate store is a string (base-64-encoded) representing a certificate store in JKS format. Note that this store type is only available in Java. |
| PEMKEY_FILE | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. |
| PEMKEY_BLOB | The certificate store is a string (base64-encoded) that contains a private key and an optional certificate. |
| PUBLIC_KEY_FILE | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. |
| PUBLIC_KEY_BLOB | The certificate store is a string (base-64-encoded) that contains a PEM- or DER-encoded public key certificate. |
| SSHPUBLIC_KEY_FILE | The certificate store is the name of a file that contains an SSH-style public key. |
| SSHPUBLIC_KEY_BLOB | The certificate store is a string (base-64-encoded) that contains an SSH-style public key. |
| P7BFILE | The certificate store is the name of a PKCS7 file containing certificates. |
| PPKFILE | The certificate store is the name of a file that contains a PuTTY Private Key (PPK). |
| XMLFILE | The certificate store is the name of a file that contains a certificate in XML format. |
| XMLBLOB | The certificate store is a string that contains a certificate in XML format. |
| BCFKSFILE | The certificate store is the name of a file that contains an Bouncy Castle keystore. |
| BCFKSBLOB | The certificate store is a string (base-64-encoded) that contains a Bouncy Castle keystore. |
Specifes the password required to access the TLS/SSL client certificate store. Use this property if the selected certificate store type requires a password for access.
This property provides the password needed to open a password-protected certificate store. This property is necessary when using certificate stores that require a password for decryption, as is often recommended for PFX or JKS type stores.
If the certificate store type does not require a password, for example USER or MACHINE on Windows, this property can be left blank. Ensure that the password matches the one associated with the specified certificate store to avoid authentication errors.
Specifes the subject of the TLS/SSL client certificate to locate it in the certificate store. Use a comma-separated list of distinguished name fields, such as CN=www.server.com, C=US. The wildcard * selects the first certificate in the store.
This property determines which client certificate to load based on its subject. The Sync App searches for a certificate that exactly matches the specified subject. If no exact match is found, the Sync App looks for certificates containing the value of the subject. If no match is found, no certificate is selected.
The subject should follow the standard format of a comma-separated list of distinguished name fields and values. For example, CN=www.server.com, OU=Test, C=US. Common fields include the following:
| 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 |
Note: If any field contains special characters, such as commas, the value must be quoted. For example: CN="Example, Inc.", C=US.
Specifies the certificate to be accepted from the server when connecting using TLS/SSL.
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 PostgreSQL connection over SSH. Use SSH. |
The authentication method used when establishing an SSH Tunnel to the service.
A certificate to be used for authenticating the SSHUser.
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 Sync App generates it from the private key. The Sync App 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 Sync App 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.
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.
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.
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.
The SSH server.
The SSH port.
The SSH port.
The SSH user.
The SSH user.
The SSH password.
The SSH password.
The SSH server fingerprint.
The SSH server fingerprint.
Whether to tunnel the PostgreSQL connection over SSH. Use SSH.
By default the Sync App will attempt to connect directly to PostgreSQL. When this option is enabled, the Sync App will instead establish an SSH connection with the SSHServer and tunnel the connection to PostgreSQL through it.
This section provides a complete list of the Firewall properties you can configure in the connection string for this provider.
| Property | Description |
| FirewallType | Specifies the protocol the provider uses to tunnel traffic through a proxy-based firewall. |
| FirewallServer | Identifies the IP address, DNS name, or host name of a proxy used to traverse a firewall and relay user queries to network resources. |
| FirewallPort | Specifies the TCP port to be used for a proxy-based firewall. |
| FirewallUser | Identifies the user ID of the account authenticating to a proxy-based firewall. |
| FirewallPassword | Specifies the password of the user account authenticating to a proxy-based firewall. |
Specifies the protocol the provider uses to tunnel traffic through a proxy-based firewall.
A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.
Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.
The following table provides port number information for each of the supported protocols.
| Protocol | Default Port | Description |
| TUNNEL | 80 | The port where the Sync App opens a connection to PostgreSQL. Traffic flows back and forth via the proxy at this location. |
| SOCKS4 | 1080 | The port where the Sync App opens a connection to PostgreSQL. SOCKS 4 then passes theFirewallUser value to the proxy, which determines whether the connection request should be granted. |
| SOCKS5 | 1080 | The port where the Sync App sends data to PostgreSQL. If the SOCKS 5 proxy requires authentication, set FirewallUser and FirewallPassword to credentials the proxy recognizes. |
Identifies the IP address, DNS name, or host name of a proxy used to traverse a firewall and relay user queries to network resources.
A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.
Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.
Specifies the TCP port to be used for a proxy-based firewall.
A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.
Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.
Identifies the user ID of the account authenticating to a proxy-based firewall.
A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.
Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.
Specifies the password of the user account authenticating to a proxy-based firewall.
A proxy-based firewall (or proxy firewall) is a network security device that acts as an intermediary between user requests and the resources they access. The proxy accepts the request of an authenticated user, tunnels through the firewall, and transmits the request to the appropriate server.
Because the proxy evaluates and transfers data backets on behalf of the requesting users, the users never connect directly with the servers, only with the proxy.
This section provides a complete list of the Logging properties you can configure in the connection string for this provider.
| Property | Description |
| LogModules | Specifies the core modules to include in the log file. Use a semicolon-separated list of module names. By default, all modules are logged. |
Specifies the core modules to include in the log file. Use a semicolon-separated list of module names. By default, all modules are logged.
The Sync App writes details about each operation it performs into the logfile specified by the Logfile connection property.
Each of these logged operations are assigned to a themed category called a module, and each module has a corresponding short code used to labels individual Sync App operations as belonging to that module.
When this connection property is set to a semicolon-separated list of module codes, only operations belonging to the specified modules are written to the logfile. Note that this only affects which operations are logged moving forward and doesn't retroactively alter the existing contents of the logfile. For example: INFO;EXEC;SSL;META;
By default, logged operations from all modules are included.
You can explicitly exclude a module by prefixing it with a "-". For example: -HTTP
To apply filters to submodules, identify them with the syntax <module name>.<submodule name>. For example, the following value causes the Sync App to only log actions belonging to the HTTP module, and further refines it to exclude actions belonging to the Res submodule of the HTTP module: HTTP;-HTTP.Res
Note that the logfile filtering triggered by the Verbosity connection property takes precedence over the filtering imposed by this connection property. This means that operations of a higher verbosity level than the level specified in the Verbosity connection property are not printed in the logfile, even if they belong to one of the modules specified in this connection property.
The available modules and submodules are:
| Module Name | Module Description | Submodules |
| INFO | General Information. Includes the connection string, product version (build number), and initial connection messages. |
|
| EXEC | Query Execution. Includes execution messages for user-written SQL queries, parsed SQL queries, and normalized SQL queries. Success/failure messages for queries and query pages appear here as well. |
|
| HTTP | HTTP protocol messages. Includes HTTP requests/responses (including POST messages), as well as Kerberos related messages. |
|
| WSDL | Messages pertaining to the generation of WSDL/XSD files. | — |
| SSL | SSL certificate messages. |
|
| AUTH | Authentication related failure/success messages. |
|
| SQL | Includes SQL transactions, SQL bulk transfer messages, and SQL result set messages. |
|
| META | Metadata cache and schema messages. |
|
| FUNC | Information related to executing SQL functions. |
|
| TCP | Incoming and outgoing raw bytes on TCP transport layer messages. |
|
| FTP | Messages pertaining to the File Transfer Protocol. |
|
| SFTP | Messages pertaining to the Secure File Transfer Protocol. |
|
| POP | Messages pertaining to data transferred via the Post Office Protocol. |
|
| SMTP | Messages pertaining to data transferred via the Simple Mail Transfer Protocol. |
|
| CORE | Messages relating to various internal product operations not covered by other modules. | — |
| DEMN | Messages related to SQL remoting. | — |
| CLJB | Messages about bulk data uploads (cloud job). |
|
| SRCE | Miscellaneous messages produced by the product that don't belong in any other module. | — |
| TRANCE | Advanced messages concerning low-level product operations. | — |
This section provides a complete list of the Schema properties you can configure in the connection string for this provider.
| Property | Description |
| Location | Specifies the location of a directory containing schema files that define tables, views, and stored procedures. Depending on your service's requirements, this may be expressed as either an absolute path or a relative path. |
| BrowsableSchemas | Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC . |
| Tables | Optional setting that restricts the tables reported to a subset of all available tables. For example, Tables=TableA,TableB,TableC . |
| Views | Optional setting that restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC . |
| IgnoredSchemas | A visibility restriction filter used to hide schemas from a list that is obtained by querying metadata, such as information_schema and pg_catalog. It's important to remember that schema names are case-sensitive. |
Specifies the location of a directory containing schema files that define tables, views, and stored procedures. Depending on your service's requirements, this may be expressed as either an absolute path or a relative path.
The Location property is only needed if you want to either customize definitions (for example, change a column name, ignore a column, etc.) or extend the data model with new tables, views, or stored procedures.
If left unspecified, the default location is %APPDATA%\\CData\\PostgreSQL Data Provider\\Schema, where %APPDATA% is set to the user's configuration directory:
| Platform | %APPDATA% |
| Windows | The value of the APPDATA environment variable |
| Linux | ~/.config |
Optional setting that restricts the schemas reported to a subset of all available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC .
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.
Optional setting that restricts the tables reported to a subset of all available tables. For example, Tables=TableA,TableB,TableC .
Listing all available tables from some databases can take extra time, thus degrading performance. Providing a list of tables in the connection string saves time and improves performance.
If there are lots of tables available and you already know which ones you want to work with, you can use this property to restrict your viewing to only those tables. To do this, specify the tables you want in a comma-separated list. Each table should be a valid SQL identifier with any special characters escaped using square brackets, double-quotes or backticks. For example, Tables=TableA,[TableB/WithSlash],WithCatalog.WithSchema.`TableC With Space`.
Note: If you are connecting to a data source with multiple schemas or catalogs, you must specify each table you want to view by its fully qualified name. This avoids ambiguity between tables that may exist in multiple catalogs or schemas.
Optional setting that restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC .
Listing all available views from some databases can take extra time, thus degrading performance. Providing a list of views in the connection string saves time and improves performance.
If there are lots of views available and you already know which ones you want to work with, you can use this property to restrict your viewing to only those views. To do this, specify the views you want in a comma-separated list. Each view should be a valid SQL identifier with any special characters escaped using square brackets, double-quotes or backticks. For example, Views=ViewA,[ViewB/WithSlash],WithCatalog.WithSchema.`ViewC With Space`.
Note: If you are connecting to a data source with multiple schemas or catalogs, you must specify each view you want to examine by its fully qualified name. This avoids ambiguity between views that may exist in multiple catalogs or schemas.
A visibility restriction filter used to hide schemas from a list that is obtained by querying metadata, such as information_schema and pg_catalog. It's important to remember that schema names are case-sensitive.
By default, there are no restrictions in place. When the parameter BrowsableSchemas is specified, this property becomes inactive, indicating it will not impose any limitations or controls on the associated elements.
This section provides a complete list of the Miscellaneous properties you can configure in the connection string for this provider.
| Property | Description |
| AllowPreparedStatement | Prepare a query statement before its execution. |
| BrowsePartitions | Determines whether to expose the super table and its associated partitions through metadata. |
| FetchResultSetMetadata | This property determines whether the provider retrieves metadata related to the schema and table names for result set columns returned by the server. |
| IncludeTableTypes | When this property is set to true, the provider will query the types of individual tables and views available in the database. |
| 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. |
| Other | Specifies advanced connection properties for specialized scenarios. Use this property only under the guidance of our Support team to address specific issues. |
| QueryPassthrough | This option passes the query to the PostgreSQL server as is. |
| Timeout | Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. |
| TimeZone | Sets the time zone the server will use to return datetime/timestamp columns. The value should be specified according to POSIX time zone specification. |
Prepare a query statement before its execution.
If the AllowPreparedStatement property is set to false, statements are parsed each time they are executed. Setting this property to false can be useful if you are executing many different queries only once.
If you are executing the same query repeatedly, you will generally see better performance by leaving this property set to the default, True. Preparing the query avoids recompiling the same query over and over. However, prepared statements also require the Sync App to keep the connection active and open while the statement is prepared.
Determines whether to expose the super table and its associated partitions through metadata.
When BrowsePartitions is set to false, sub-partitions are explicitly hidden during metadata discovery. When this property is set to true, the provider will report information about the super table and its related partitions when returning database metadata.
This property significantly impacts the performance and functionality of servers that operate on version 10 and subsequent releases.
This property determines whether the provider retrieves metadata related to the schema and table names for result set columns returned by the server.
By default, the Sync App does not request detailed information about result set columns, such as the table name or schema name, from the server. Obtaining this information requires additional metadata queries through the Sync App, which can affect query performance in certain scenarios.
When FetchResultSetMetadata is set to true, the Sync App will execute additional metadata queries to return detailed descriptive information for the result set columns.
When this property is set to true, the provider will query the types of individual tables and views available in the database.
When IncludeTableTypes is set to false, it indicates that MATERIALIZED VIEW will be treated as a VIEW, PARTITION as a TABLE, and FOREIGN TABLE as a TABLE. Therefore, IncludeTableTypes provides a more detailed way to describe both tables and views.
Specifies the method to use when inserting bulk data. By default, the DML mode is used.
There are only two valid options: DML and CSVStream.
When InsertMode is set to DML, the Sync App uses INSERT SQL statements to upload bulk data.
When this property is set to CSVStream, the Sync App 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.
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 advanced connection properties for specialized scenarios. Use this property only under the guidance of our Support team to address specific issues.
This property allows advanced users to configure hidden properties for specialized situations, with the advice of our Support team. These settings are not required for normal use cases but can address unique requirements or provide additional functionality. To define multiple properties, use a semicolon-separated list.
Note: It is strongly recommended to set these properties only when advised by the Support team to address specific scenarios or issues.
| Property | Description |
| DefaultColumnSize | Sets the default length of string fields when the data source does not provide column length in the metadata. The default value is 2000. |
| ConvertDateTimeToGMT=True | Converts date-time values to GMT, instead of the local time of the machine. The default value is False (use local time). |
| RecordToFile=filename | Records the underlying socket data transfer to the specified file. |
This option passes the query to the PostgreSQL server as is.
When this is set, queries are passed through directly to PostgreSQL.
Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error.
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.
Sets the time zone the server will use to return datetime/timestamp columns. The value should be specified according to POSIX time zone specification.
The server stores time with time zone and timestamp with time zone in UTC. If the TimeZone property is not set, the provider uses the client's local time zone.
Setting this property can be useful when you need the server to convert to a specific time zone, which is different from the client's local time zone.
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