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[FLINK-27935][python][docs] Add Pyflink example of create temporary view document #19918

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[FLINK-27935][python][docs] Add Pyflink example of create temporary view document #19918

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43 changes: 43 additions & 0 deletions docs/content.zh/docs/dev/table/common.md
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Original file line number Diff line number Diff line change
Expand Up @@ -322,6 +322,8 @@ table_env.register_table("projectedTable", proj_table)

Such tables can either be created using the Table API directly, or by switching to SQL DDL.

{{< tabs "059e9a56-282c-5e78-98d3-85be5abd04a2" >}}
{{< tab "Java" >}}
```java
// Using table descriptors
final TableDescriptor sourceDescriptor = TableDescriptor.forConnector("datagen")
Expand All @@ -337,6 +339,25 @@ tableEnv.createTemporaryTable("SourceTableB", sourceDescriptor);
// Using SQL DDL
tableEnv.executeSql("CREATE [TEMPORARY] TABLE MyTable (...) WITH (...)");
```
{{< /tab >}}
{{< tab "Python" >}}
```python
# Using table descriptors
source_descriptor = TableDescriptor.for_connector("datagen")
.schema(Schema.new_builder()
.column("f0", DataTypes.STRING())
.build())
.option("rows-per-second", 100)
.build()

t_env.create_table("SourceTableA", source_descriptor)
t_env.create_temporary_table("SourceTableB", source_descriptor)

# Using SQL DDL
t_env.execute_sql("CREATE [TEMPORARY] TABLE MyTable (...) WITH (...)")
```
{{< /tab >}}
{{< /tabs >}}

<a name="expanding-table-identifiers"></a>

Expand Down Expand Up @@ -402,6 +423,28 @@ tableEnv.createTemporaryView("`example.View`", table)
tableEnv.createTemporaryView("other_catalog.other_database.exampleView", table)
```
{{< /tab >}}
{{< tab "Python" >}}
```python
# get a TableEnvironment
t_env = TableEnvironment.create(...)
t_env.use_catalog("custom_catalog")
t_env.use_database("custom_database")

table = ...

# register the view named 'exampleView' in the catalog named 'custom_catalog'
# in the database named 'custom_database'
t_env.create_temporary_view("other_database.exampleView", table)

# register the view named 'example.View' in the catalog named 'custom_catalog'
# in the database named 'custom_database'
t_env.create_temporary_view("`example.View`", table)

# register the view named 'exampleView' in the catalog named 'other_catalog'
# in the database named 'other_database'
t_env.create_temporary_view("other_catalog.other_database.exampleView", table)
```
{{< /tab >}}
{{< /tabs >}}

<a name="query-a-table"></a>
Expand Down
43 changes: 43 additions & 0 deletions docs/content/docs/dev/table/common.md
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Original file line number Diff line number Diff line change
Expand Up @@ -331,6 +331,8 @@ The connector describes the external system that stores the data of a table. Sto

Such tables can either be created using the Table API directly, or by switching to SQL DDL.

{{< tabs "059e9a56-282c-5e78-98d3-85be5abd04a2" >}}
{{< tab "Java" >}}
```java
// Using table descriptors
final TableDescriptor sourceDescriptor = TableDescriptor.forConnector("datagen")
Expand All @@ -346,6 +348,25 @@ tableEnv.createTemporaryTable("SourceTableB", sourceDescriptor);
// Using SQL DDL
tableEnv.executeSql("CREATE [TEMPORARY] TABLE MyTable (...) WITH (...)");
```
{{< /tab >}}
{{< tab "Python" >}}
```python
# Using table descriptors
source_descriptor = TableDescriptor.for_connector("datagen")
.schema(Schema.new_builder()
.column("f0", DataTypes.STRING())
.build())
.option("rows-per-second", 100)
.build()

t_env.create_table("SourceTableA", source_descriptor)
t_env.create_temporary_table("SourceTableB", source_descriptor)

# Using SQL DDL
t_env.execute_sql("CREATE [TEMPORARY] TABLE MyTable (...) WITH (...)")
```
{{< /tab >}}
{{< /tabs >}}

### Expanding Table identifiers

Expand Down Expand Up @@ -411,6 +432,28 @@ tableEnv.createTemporaryView("`example.View`", table)
tableEnv.createTemporaryView("other_catalog.other_database.exampleView", table)
```
{{< /tab >}}
{{< tab "Python" >}}
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```python
# get a TableEnvironment
t_env = TableEnvironment.create(...)
t_env.use_catalog("custom_catalog")
t_env.use_database("custom_database")

table = ...

# register the view named 'exampleView' in the catalog named 'custom_catalog'
# in the database named 'custom_database'
t_env.create_temporary_view("other_database.exampleView", table)

# register the view named 'example.View' in the catalog named 'custom_catalog'
# in the database named 'custom_database'
t_env.create_temporary_view("`example.View`", table)

# register the view named 'exampleView' in the catalog named 'other_catalog'
# in the database named 'other_database'
t_env.create_temporary_view("other_catalog.other_database.exampleView", table)
```
{{< /tab >}}
{{< /tabs >}}

Query a Table
Expand Down