Update hive external table en sql reference

This commit is contained in:
wyb
2020-06-12 21:38:05 +08:00
parent 7f7ee63723
commit 44dbdf4986
2 changed files with 32 additions and 5 deletions

View File

@ -35,7 +35,7 @@ Syntax:
CREATE [EXTERNAL] TABLE [IF NOT EXISTS] [database.]table_name
(column_definition1[, column_definition2, ...]
[, index_definition1[, ndex_definition12,]])
[ENGINE = [olap|mysql|broker]]
[ENGINE = [olap|mysql|broker|hive]]
[key_desc]
[COMMENT "table comment"]
[partition_desc]
@ -104,7 +104,7 @@ Syntax:
Notice:
Only support BITMAP index in current version, BITMAP can only apply to single column
3. ENGINE type
Default is olap. Options are: olap, mysql, broker
Default is olap. Options are: olap, mysql, broker, hive
1) For mysql, properties should include:
```
@ -123,7 +123,7 @@ Syntax:
table_name in CREATE TABLE stmt is table is Doris. They can be different or same.
MySQL table created in Doris is for accessing data in MySQL database.
Doris does not maintain and store any data from MySQL table.
1) For broker, properties should include:
2) For broker, properties should include:
```
PROPERTIES (
@ -145,6 +145,16 @@ Syntax:
Notice:
Files name in "path" is separated by ",". If file name includes ",", use "%2c" instead. If file name includes "%", use "%25" instead.
Support CSV and Parquet. Support GZ, BZ2, LZ4, LZO(LZOP)
3) For hive, properties should include:
```
PROPERTIES (
"database" = "hive_db_name",
"table" = "hive_table_name",
"hive.metastore.uris" = "thrift://127.0.0.1:9083"
)
```
"database" is the name of the database corresponding to the hive table, "table" is the name of the hive table, and "hive.metastore.uris" is the hive metastore service address.
Notice: At present, hive external tables are only used for Spark Load and query is not supported.
4. key_desc
Syntax:
key_type(k1[,k2 ...])
@ -577,6 +587,23 @@ Syntax:
PROPERTIES ("in_memory"="true");
```
13. Create a hive external table
```
CREATE TABLE example_db.table_hive
(
k1 TINYINT,
k2 VARCHAR(50),
v INT
)
ENGINE=hive
PROPERTIES
(
"database" = "hive_db_name",
"table" = "hive_table_name",
"hive.metastore.uris" = "thrift://127.0.0.1:9083"
);
```
## keyword
CREATE,TABLE

View File

@ -111,7 +111,7 @@ under the License.
当前仅支持BITMAP索引, BITMAP索引仅支持应用于单列
3. ENGINE 类型
默认为 olap。可选 mysql, broker
默认为 olap。可选 mysql, broker, hive
1) 如果是 mysql,则需要在 properties 提供以下信息:
```
@ -626,7 +626,7 @@ under the License.
(
k1 TINYINT,
k2 VARCHAR(50),
v2 INT
v INT
)
ENGINE=hive
PROPERTIES