Capabilities for Ingres

This section lists the Capabilities of Data Source Solutions DSS when using 'Ingres'. For more information about the pre-requisites, access privileges, and other configuration requirements, see Ingres Requirements.

Capture

DSS supports the following capabilities on Ingres:

• Capture changes from location (Ingres from version 10.0 to version 12.0).
• Log-based capture (capture from DBMS logging system) (Ingres from version 10.0 to version 12.0).
• Log-based capture of tables without a primary key (Ingres from version 10.0 to version 12.0).
• Direct access to logs on a file system (Ingres from version 10.0 to version 12.0).
• Log-based capture of tables with LOB column (Ingres from version 10.0 to version 12.0).
• Rewind log-based capture to specific time (dssactivate option -i) (Ingres from version 10.0 to version 12.0).
• Populates column dss_cap_user for use in ColumnProperties {dss_cap_user} substitutions (Ingres from version 10.0 to version 12.0).
• Log-based capture of truncate table statements (Ingres from version 10.0 to version 12.0).
• Multiple log-based capture jobs can capture from same database (Ingres from version 10.0 to version 12.0).
• Capture from tables with compression=data (Ingres from version 10.0 to version 12.0).
• Capture from tables with compression=hidata (Ingres from version 10.0 to version 12.0).
• Log-based capture checkpointing using location property Capture_Checkpoint_Frequency (Ingres from version 10.0 to version 12.0).
• Trigger-based capture (using the location property Capture_Method=DB_TRIGGER at the capture location). This method has been deprecated since 6.2.0/0. (Ingres from version 10.0 to version 12.0).
• Location property Trigger_Quick_Toggle on the capture location (Ingres from version 10.0 to version 12.0).
• Boundaries between transactions preserved by trigger-based capture (Ingres from version 10.0 to version 12.0).
• Trigger-based capture jobs can be woken by db-event when change happens (Ingres from version 10.0 to version 12.0).

DSS does not support the following capabilities on Ingres:

• Capture from Archive log files only.
• Log-based capture of DDL statements using action AdaptDDL.
• Access to logs using SQL interface.
• Log-based capture from hidden rowid/RRN column (ColumnProperties with parameter CaptureFromRowId).
• Rewind log-based capture to the beginning of currently active oldest transaction.
• Online refresh using accurate LSN/SCN.
• Read archives from an alternative directory (location property Archive_Log_Path on the capture location).

Repository Database

DSS does not support Repository database on Ingres.

Integrate

DSS supports the following capabilities on Ingres:

• Integrate changes into location (Ingres from version 10.0 to version 12.0).
• Burst integration (Integrate with parameter Method=BURST) (Ingres from version 10.0 to version 12.0).
• Integrate with parameter BurstCommitFrequency (Ingres from version 10.0 to version 12.0).
• Continuous integration (Integrate with parameter Method=CONTINUOUS) (Ingres from version 10.0 to version 12.0).
• Tables without a key and without TableProperties with NoDuplicateRows for continuous integration (Ingres from version 10.0 to version 12.0).
• Continuous integrate with parameter OnErrorSaveFailed (Ingres from version 10.0 to version 12.0).
• Disable/enable database triggers during integrate (with parameter NoTriggerFiring) (Ingres from version 10.0 to version 12.0).
• ColumnProperties with parameter SoftDelete (Ingres from version 10.0 to version 12.0).
• Creation and update of DSS state tables (Ingres from version 10.0 to version 12.0).
• Integrate with parameter DbProc (Ingres from version 10.0 to version 12.0).

DSS does not support the following capabilities on Ingres:

• Append integration into TimeKey (Integrate with parameter Method=APPEND).

Bi-directional Replication

DSS supports the following capabilities on Ingres:

• Detection of changes made by DSS in a bidirectional channel to prevent loop-back (Ingres from version 10.0 to version 12.0).
• CollisionDetect with Log-based Capture (without parameter TimestampColumn) (Ingres from version 10.0 to version 12.0).
• CollisionDetect with Trigger-based Capture (with location property Capture_Method=DB_TRIGGER on the capture location and CollisionDetect without parameter TimestampColumn) (Ingres from version 10.0 to version 12.0).
• CollisionDetect with parameter TimestampColumn (Ingres from version 10.0 to version 12.0).

Refresh and Compare

DSS supports the following capabilities on Ingres:

• dssrefresh or dsscompare from source location (Ingres from version 10.0 to version 12.0).
• dssrefresh into target location (Ingres from version 10.0 to version 12.0).
• Isolated table dssrefresh (option -i) into target location (Ingres from version 10.0 to version 12.0).
• Row-wise dssrefresh into target location (option -g) (Ingres from version 10.0 to version 12.0).
• Disable/enable foreign keys and secondary indices during dssrefresh (option -F) (Ingres from version 10.0 to version 12.0).
• For a table: disable/enable journaling, disable/enable unique/primary constraints, disable/enable volatile secondary indices, support main storage structure during dssrefresh (Ingres from version 10.0 to version 12.0).
• Identity columns (Ingres from version 10.0 to version 12.0).
• Replicate database sequences (using action DbSequence) (Ingres from version 10.0 to version 12.0).

DSS does not support the following capabilities on Ingres:

• Select more than 4 billion rows during dssrefresh or dsscompare.

Other Capabilities

DSS supports the following capabilities on Ingres:

• Call database procedure dbproc during replication jobs (AgentPlugin with parameter DbProc) (Ingres from version 10.0 to version 12.0).
• DbObjectGeneration with parameter IncludeSQLFile (Ingres from version 10.0 to version 12.0).
• International table and column names where DBMS is not configured with UTF-8 encoding (Ingres from version 10.0 to version 12.0).
• Treat DBMS table names and columns as case sensitive if configured (location property Case_Sensitive_Names) (Ingres from version 10.0 to version 12.0).
• Treat DBMS schema names as case sensitive if configured (location property Case_Sensitive_Names) (Ingres from version 10.0 to version 12.0).

DSS does not support the following capabilities on Ingres:

• Use distribution key for parallelizing changes within a table (ColumnProperties with parameter DistributionKey).
• Distinguish and support capture from 'column store tables'.