7a0c7f45b2
The english documents is translated by machine. So It may has some mistake. We will fix them later
1.4 KiB
1.4 KiB
'35; CAST Description
cast (input as type)
'35;'35;' 35; BIGINT type
'35;'35;' 35; Syntax (BIGINT)
cast (input as BIGINT)
Converts input to the specified type
Converting the current column input to BIGINT type
'35;'35; example
- Turn constant, or a column in a table
mysql> select cast (1 as BIGINT);
+-------------------+
| CAST(1 AS BIGINT) |
+-------------------+
| 1 |
+-------------------+
- Transferred raw data
curl --location-trusted -u root: -T ~/user_data/bigint -H "columns: tmp_k1, k1=cast(tmp_k1 as BIGINT)" http://host:port/api/test/bigint/_stream_load
- Note: In the import, because the original type is String, when the original data with floating point value is cast, the data will be converted to NULL, such as 12.0. Doris is currently not truncating raw data. *
If you want to force this type of raw data cast to int. Look at the following words:
curl --location-trusted -u root: -T ~/user_data/bigint -H "columns: tmp_k1, k1=cast(cast(tmp_k1 as DOUBLE) as BIGINT)" http://host:port/api/test/bigint/_stream_load
mysql> select cast(cast ("11.2" as double) as bigint);
+----------------------------------------+
| CAST(CAST('11.2' AS DOUBLE) AS BIGINT) |
+----------------------------------------+
| 11 |
+----------------------------------------+
1 row in set (0.00 sec)
##keyword CAST