We are performing data migration from On-Prem DB2 LUW to AWS Aurora PostgreSQL using AWS SCT and DMS. While the data load is successful, data validation is not occurring despite having a unique index for DMS replication instance versions 3.5.3 and 3.5.4. However, data validation is successful with DMS replication instance version 3.5.2.
Table and Unique Index Details:
CREATE TABLE xyz (
xxx CHARACTER VARYING(22) NOT NULL,
xxx_dt DATE NOT NULL,
xxx_cd SMALLINT NOT NULL,
zxxx_cd CHARACTER(7),
state_xxx CHARACTER(2),
xxx_reading INTEGER,
xxx_uom CHARACTER(1),
xxx_nb CHARACTER VARYING(17),
xxx_id INTEGER NOT NULL,
xxx_in CHARACTER(1) NOT NULL,
xxxn_in CHARACTER(1) NOT NULL);
CREATE UNIQUE INDEX ip_xxx
ON xyz (xxx ASC, xxx_dt ASC, xxx_cd ASC, state_xxx ASC, xxx_reading ASC, xxx_nb ASC) NULLS NOT DISTINCT;
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