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Transformation rules like - "rule-action": "change-data-type", work on DMS data types. "type": "string" , "length": 500 will be the DMS data type here which will be converted to the target engine data type. Since DMS does not support string as a data type for Opensearch target, this attribute is not getting converted. Please refer : https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Target.Elasticsearch.html#CHAP_Target.Elasticsearch.DataTypes AWS DMS data type - Boolean,Date,Time, Timestamp,INT4,Real4,UINT4 only supported DMS data types. No string data type allowed for Opensearch as a target
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How does it handle varchars? in the same table i have a
name
column which is avarchar(255)
and that get's mapped to astring
type in OpenSearch. Is there no way to migrate atext
type from postgres to OpenSearch?Yeah, it's confusing how DMS handles varchar even it is not mentioned in the documentation as supported source data type! I'm stuck in the same problem, did you find any solution?