linux yum have a trouble “libmysqlclient.so.18()”

Question

when I install postgis

Error: Package: gdal32-libs-3.2.0-1.rhel7.aarch64 (pgdg-common) Requires: libmysqlclient.so.18()(64bit) Error: Package: 2:postfix-2.10.1-7.el7.