flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/mysql/dialect/MySqlDialect.java [108:119]:
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    @Override
    public Set<LogicalTypeRoot> supportedTypes() {
        // The data types used in Mysql are list at:
        // https://dev.mysql.com/doc/refman/8.0/en/data-types.html

        // TODO: We can't convert BINARY data type to
        //  PrimitiveArrayTypeInfo.BYTE_PRIMITIVE_ARRAY_TYPE_INFO in
        // LegacyTypeInfoDataTypeConverter.
        return EnumSet.of(
                LogicalTypeRoot.CHAR,
                LogicalTypeRoot.VARCHAR,
                LogicalTypeRoot.BOOLEAN,
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flink-connector-jdbc/src/main/java/org/apache/flink/connector/jdbc/databases/sqlserver/dialect/SqlServerDialect.java [138:143]:
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    @Override
    public Set<LogicalTypeRoot> supportedTypes() {
        return EnumSet.of(
                LogicalTypeRoot.CHAR,
                LogicalTypeRoot.VARCHAR,
                LogicalTypeRoot.BOOLEAN,
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