針對JSON 格式,直接複製僅支援接收器 Snowflake 資料表只有單一資料行的案例,且此資料行的資料類型為 VARIANT、OBJECT 或ARRAY。 compression 可以是無壓縮、gzip、bzip2 或deflate。 encodingName 會保留為預設值,或設定為 utf-8。 不會指定資料行對應。 在複製活動來源中: 不會指定 additionalColumns。 如果來源是...
Learn how to use special operators and functions to query complex hierarchical data stored in a VARIANT. Using full-text search You can use full-text search to find character data (text) in specified columns from one or more tables, including fields in VARIANT, OBJECT, and ARRAY columns. Lea...
The action "Convert result set rows from array to objects" would also need to be dropped as that functionality is now wrapped in "Check the Status and Get Results".Known issues and limitationsWe currently do not support duplicate columns when the join command is executed. A workaround would ...
Applies transformers to columns of an array or pandas DataFrame For more details on this class, see sklearn.compose.ColumnTransformer TransformedTargetRegressor(*[, regressor, ...]) Meta-estimator to regress on a transformed target For more details on this class, see sklearn.compose.TransformedTarg...
schema- the schema value to set. Returns: the SnowflakeV2Dataset object itself. withStructure public SnowflakeV2Dataset withStructure(Object structure) Set the structure property: Columns that define the structure of the dataset. Type: array (or Expression with resultType array), itemType: Dataset...
In addition to the standard ANSI SQL data types, Snowflake also supports the semi-structured data types: VARIANT, OBJECT and ARRAY to represent arbitrary data structures which can be used to import and operate on semi-structured data (JSON, Avro, ORC, Parquet, or XML.) Snowflake stores ...
To use passthrough queries with Snowflake, you can use the following syntax: SELECT*FROMTABLE( system.query( query=>'query string')) The following example query pushes down a query to a data source in Snowflake. The query selects all columns in thecustomertable, limiting the results to 10...
then add the partition columns SELECT GENERATE_COLUMN_DESCRIPTION(ARRAY_CAT( ARRAY_AGG(OBJECT_CONSTRUCT(*)), -- Partition columns are defined as expressions based on the filename [ PARSE_JSON('{ "COLUMN_NAME": "YEAR", "EXPRESSION": "TO_NUMBER(SPLIT_PART(SPLIT_PART(metadata$filename, \'/...
Run metadata ingestion for Snowflake in OpenMetadata. Observe that ingestion fails with the above error. To Reproduce Screenshots or steps to reproduce Expected behavior A clear and concise description of what you expected to happen. -- OpenMetadata should correctly process ARRAY columns and detect ...
cluster key 不仅可以是列集合,还可以是关于列的表达式: -- cluster by base columnsCREATEORREPLACETABLEt1(c1DATE,c2STRING,c3NUMBER)CLUSTERBY(c1,c2);-- cluster by expressionsCREATEORREPLACETABLEt2(c1timestamp,c2STRING,c3NUMBER)CLUSTERBY(TO_DATE(C1),substring(c2,0,10));-- cluster by base columns...