Capabilities for Ingres

Last updated on Jan 05, 2021

Contents

This section lists the Capabilities of HVR when using 'Ingres'. For more information about the pre-requisites, access privileges, and other configuration requirements, see Requirements for Ingres and Vector.

Capture

HVR supports the following capabilities on Ingres:

  • Capture changes from location (Ingres from version 9.1 to version 11.1).
  • Log-based capture (capture from DBMS logging system) (Ingres from version 9.1 to version 11.1).
  • Log-based capture of tables without a primary key (Ingres from version 9.1 to version 11.1).
  • Direct access to logs on a file system (Ingres from version 9.1 to version 11.1).
  • Log-based capture of tables with LOB column (Ingres from version 9.1 to version 11.1).
  • Rewind log-based capture to specific time (Hvrinit option -i) (Ingres from version 9.1 to version 11.1).
  • Populates column hvr_cap_user for use in ColumnProperties {hvr_cap_user} substitutions (Ingres from version 9.1 to version 11.1).
  • Log-based capture of truncate table statements (Ingres from version 9.1 to version 11.1).
  • Multiple log-based capture jobs can capture from same database (Ingres from version 9.1 to version 11.1).
  • Capture from tables with compression=data (Ingres from version 9.1 to version 11.1).
  • Capture from tables with compression=hidata (Ingres from version 9.1 to version 11.1).
  • Log-based capture checkpointing (action Capture /CheckpointingFrequency) (Ingres from version 9.1 to version 11.1).
  • Hvrlogrelease to preserve journal/archives (Ingres from version 9.1 to version 11.1).
  • Trigger-based capture (action Capture /TriggerBased) (Ingres from version 9.1 to version 11.1).
  • Capture /QuickToggle (Ingres from version 9.1 to version 11.1).
  • Boundaries between transactions preserved by trigger-based capture (Ingres from version 9.1 to version 11.1).
  • Trigger-based capture jobs can be woken by db-event when change happens (Ingres from version 9.1 to version 11.1).

HVR 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 column (ColumnProperties /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 (Capture /ArchiveLogPath).

Hub Database

HVR supports Hub database on Ingres.

Integrate

HVR supports the following capabilities on Ingres:

  • Integrate changes into location (Ingres from version 9.1 to version 11.1).
  • Integrate with /Burst (Ingres from version 9.1 to version 11.1).
  • Integrate with /BurstCommitFrequency (Ingres from version 9.1 to version 11.1).
  • Continuous integration (Integrate without /Burst) (Ingres from version 9.1 to version 11.1).
  • Action TableProperties with /DuplicateRows for continuous integration (Ingres from version 9.1 to version 11.1).
  • Continuous Integrate with /OnErrorSaveFailed (without /Burst) (Ingres from version 9.1 to version 11.1).
  • Disable/enable database triggers during Integrate (/NoTriggerFiring) (Ingres from version 9.1 to version 11.1).
  • Action Transform /SoftDelete (Ingres from version 9.1 to version 11.1).
  • Creation and update of HVR state tables (Ingres from version 1.0 to version 11.1).
  • Integrate with /DbProc (Ingres from version 9.1 to version 11.1).

Bi-directional Replication

HVR supports the following capabilities on Ingres:

  • Detection of changes made by HVR in a bidirectional channel to prevent loop-back (Ingres from version 9.1 to version 11.1).
  • CollisionDetect with Log-based Capture (without /TimestampColumn) (Ingres from version 9.1 to version 11.1).
  • CollisionDetect with Trigger-based Capture (with Capture /TriggerBased and without CollisionDetect /TimestampColumn) (Ingres from version 9.1 to version 11.1).
  • CollisionDetect with /TimestampColumn (Ingres from version 9.1 to version 11.1).

Refresh and Compare

HVR supports the following capabilities on Ingres:

  • Hvrrefresh or Hvrcompare from source location (Ingres from version 1.0 to version 11.1).
  • Hvrrefresh into target location (Ingres from version 1.0 to version 11.1).
  • Row-wise Hvrrefresh into target location (option -g) (Ingres from version 1.0 to version 11.1).
  • Disable/enable foreign keys and secondary indices during Hvrrefresh (option -F) (Ingres from version 1.0 to version 11.1).
  • For a table: disable/enable journaling, disable/enable unique/primary constraints, disable/enable volatile secondary indices, support main storage structure during Hvrrefresh (Ingres from version 1.0 to version 11.1).
  • Identity columns (Ingres from version 9.3 to version 11.1).
  • Replicate database sequences (using action DbSequence) (Ingres from version 9.1 to version 11.1).

HVR does not support the following capabilities on Ingres:

Other Capabilities

HVR supports the following capabilities on Ingres:

  • Call database procedure dbproc during replication jobs (action AgentPlugin /DbProc) (Ingres from version 9.1 to version 11.1).
  • DbObjectGeneration with /IncludeSQLFile (Ingres from version 9.1 to version 11.1).
  • International table and column names where DBMS is not configured with UTF-8 encoding (Ingres from version 1.0 to version 11.1).
  • Treat DBMS table names and columns case sensitive (action LocationProperties /CaseSensitiveNames) (Ingres from version 1.0 to version 11.1).

HVR does not support the following capabilities on Ingres:

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