AnalyticDB for PostgreSQL:ganos.raster.mosaic_must_same_nodata

This variable specifies whether the values of NoData in a data source must be the same during the mosaic operation. The values of NoData are not changed during the mosaic operation. If you set this parameter to false, the semantics of the pixels after the mosaic operation may be changed.

Set ganos.raster.mosaic_must_same_nodata = false;