Determines whether the Log Transfer Interface component sends all columns in row after images, or only the columns that changed in an update operation.
true
true – enables minimal column information (only changed columns in row after images) in Log Transfer Language (LTL) for update operations.
false – disables minimal column information in LTL for update operations.
When the column_compression parameter is set to false, the LTI component sends complete row after images in LTL, including columns in which no data changed as a result of an update operation.
When the column_compression parameter is set to true, the LTI component sends minimal column information in the row after images in LTL, with only the columns that changed as a result of an update operation. Columns in which no data changed as a result of the update are not sent in LTL.
In general, setting the value of the column_compression parameter to true provides better Replication Agent throughput.
