- 最新
- 最多得票
- 最多評論
Yes it is possible but I do not see any column transformation rule in what you have shared. Can you refer https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Tasks.CustomizingTasks.TableMapping.SelectionTransformation.Expressions.html and check for add-column rule action.
Also consider if you can leverage DEFAULT value for table columns if you want something like insert date time column on table. This can make it easier on DMS.
My issue here is to add columns for the renamed tables in redshift but as per aws i can see we can add columns to redshift with same name as source table. For example let me say u have a table called abc_table in source while adding column transformation in redshift we get added columns inside table abc_table, what if i perform rename transformation for a table called abc_renamed_table and for this table i need to add column is that possible?
You can use the
Example Add a columnon the table name matching source (useabc_table, not the renamedabc_renamed_table) and theExample Rename a tabletogether.
Below is my transformation rule and to add columns to renamed tables in redshift with name GA_SCD_STATUS_MT doesn't work , so my requirement is it achievable?
{ "rules": [ { "rule-type": "transformation", "rule-id": "137766153", "rule-name": "137766153", "rule-target": "column", "object-locator": { "schema-name": "GOAUDITS", "table-name": "GA_SCD_STATUS_MT" }, "parallel-load": null, "rule-action": "add-column", "value": "DMS_UPDATED_AT", "old-value": null, "expression": "current_timestamp", "data-type": { "type": "datetime" } }, { "rule-type": "transformation", "rule-id": "2", "rule-name": "2", "rule-target": "column", "object-locator": { "schema-name": "GOAUDITS", "table-name": "GA_SCD_STATUS_MT" }, "rule-action": "add-column", "value": "DMS_OPS", "expression": "operation_indicator('D', 'U', 'I')", "data-type": { "type": "string", "length": 50 } }, { "rule-type": "selection", "rule-id": "137734000", "rule-name": "137734000", "object-locator": { "schema-name": "GOAUDITS", "table-name": "GA_SCD_STATUS_MT" }, "rule-action": "include", "filters": [], "parallel-load": null, "isAutoSegmentationChecked": false } ] }
相關內容
- 已提問 4 個月前
below is my dms task , where i'm trying to add column to renamed table testing_dms_scd_status which is in redshift which i'm not able to do , can i know the reason or solution for it? { "rules": [ { "rule-type": "transformation", "rule-id": "435175087", "rule-name": "435175087", "rule-target": "schema", "object-locator": { "schema-name": "GOAUDITS" }, "parallel-load": null, "rule-action": "rename", "value": "public", "old-value": null }, { "rule-type": "selection", "rule-id": "425505670", "rule-name": "425505670", "object-locator": { "schema-name": "GOAUDITS", "table-name": "GA_SCD_STATUS_MT" }, "rule-action": "include", "filters": [] }, { "rule-type": "transformation", "rule-id": "425491926", "rule-name": "425491926", "rule-target": "table", "object-locator": { "schema-name": "GOAUDITS", "table-name": "GA_SCD_STATUS_MT" }, "parallel-load": null, "rule-action": "rename", "value": "testing_dms_scd_status", "old-value": null } ] }