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huangzhaowei c6bc0a03a4 [feature](Load)Suppot MySQL Load Data (#15511 )

Main subtask of [DSIP-28](https://cwiki.apache.org/confluence/display/DORIS/DSIP-028%3A+Suppot+MySQL+Load+Data)

## Problem summary
Support mysql load syntax as below: 
```sql
LOAD DATA
    [LOCAL]
    INFILE 'file_name'
    INTO TABLE tbl_name
    [PARTITION (partition_name [, partition_name] ...)]
    [COLUMNS TERMINATED BY 'string']
    [LINES TERMINATED BY 'string']
    [IGNORE number {LINES | ROWS}]
    [(col_name_or_user_var [, col_name_or_user_var] ...)]
    [SET (col_name={expr | DEFAULT} [, col_name={expr | DEFAULT}] ...)]
    [PROPERTIES (key1 = value1 [, key2=value2]) ]
```

For example, 
```sql
            LOAD DATA 
            LOCAL
            INFILE 'local_test.file'
            INTO TABLE db1.table1
            PARTITION (partition_a, partition_b, partition_c, partition_d)
            COLUMNS TERMINATED BY '\t'
            (k1, k2, v2, v10, v11)
            set (c1=k1,c2=k2,c3=v10,c4=v11)
            PROPERTIES ("auth" = "root:", "strict_mode"="true")
```

Note that in this pr the property named `auth` must be set since stream load need auth. I will optimize it later.

2023-01-29 14:44:59 +08:00

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2019-09-09T10:10:10