When you create a primary article for a table with one or more large-object columns, ASE Replicator creates a shadow table with the columns described in Table A-18.
Column name |
Datatype |
Description |
|---|---|---|
conn_id |
numeric(18,0) |
ID of the primary connection |
txid_page |
int |
Identifies the transaction ID page in the transaction log table |
txid_row |
smallint |
Identifies the transaction ID row in the transaction log table |
log_ts_high |
smallint |
Log timestamp high value in the transaction log table |
log_ts_low |
int |
Log timestamp low value in the transaction log table |
opid_page |
int |
Identifies the operation ID page in the transaction log table |
opid_row |
smallint |
Identifies the operation ID row in the transaction log table |
op_code |
tinyint |
Identifies type of operation |
op_xstat |
int |
Identifies operation as either update or delete |
image_type_ |
char(1) |
Identifies operation type or procedure execution |
pkey |
numeric(5,0) |
Primary key column(s) value |
col1 |
Specified in primary object |
Column for a published field in the primary object |
col2 |
rpl_clob |
Column for a published large-object (text) field in the primary object |
... coln |
... |
... Additional column for each published field in the primary object |
Except for large-object primary table columns, the shadow table column for each published field has the datatype of the published field, and each row contains the data from that primary column for the transaction operation identified by that row.
For each large-object primary table column, the shadow table column has a user-defined Boolean datatype that identifies the type of large-object data in the primary column, and the value of that Boolean indicates whether a change was made in the primary column data by the transaction operation identified by that row.
The user-defined Boolean datatypes are:
rpl_blob – indicates image primary column data.
rpl_clob – indicates text primary column data.
rpl_uclob – indicates unitext primary column data.
rpl_java – indicates java primary column data.
All these datatypes map to the Adaptive Server bit datatype.
