当您查询 PREDICATE_COLUMNS 视图时,如下例中所示,可以看到 LISTID、EVENTID 和 LISTTIME 标记为谓词列。 select * from predicate_columns where table_name = 'listing'; schema_name | table_name | col_num | col_name | is_predicate | first_predicate_use | last_analyze ---+---+---+---+-...
To begin finding information about the tables in the system, you can simply return columns from PG_TABLE_DEF: SELECT * FROM PG_TABLE_DEF; For better or worse, PG_TABLE_DEF contains information about everything in the system, so the results of such an open query will be massive, but sho...
The maximum number of columns you can define in a single table is 1,600. Inheritance of column and table attributes CREATE TABLE AS (CTAS) tables don't inherit constraints, identity columns, default column values, or the primary key from the table that they were created from. You can...
使用kettle将一个postgresql数据拷贝到另外一个postgresql时报“字段 "id" 的类型为 uuid, 但表达式的类型...
public AmazonRedshiftSource withAdditionalColumns(Object additionalColumns) Set the additionalColumns property: Specifies the additional columns to be added to source data. Type: array of objects(AdditionalColumns) (or Expression with resultType array of objects). Overrides: AmazonRedshiftSource.withAdditio...
redshift_columns redshift_constraints redshift_sort_dist_keys This macro returns the SQL required to auto-compress a table using the results of ananalyze compressionquery. All comments, constraints, keys, and indexes are copied to the newly compressed table by this macro. Additionally, sort and ...
Set the structure property: Columns that define the structure of the dataset. AmazonRedshiftTableDataset withTable(Object table) Set the table property: The Amazon Redshift table name. AmazonRedshiftTableDataset withTableName(Object tableName) Set the tableName property: This property...
aws redshift-datalist-tables--database dev --workgroup-name default --schema-pattern "demo%" --table-pattern “orders%” Run SQL commands You can run SELECT, DML, DDL, COPY, or UNLOAD commands for Amazon Redshift with the Data API. You can optionally specify the–with-e...
Setting descriptions on columns Transactional Guarantees Common problems and solutions S3 bucket and Redshift cluster are in different AWS regions Migration Guide Installation This library requires Apache Spark 2.0+ and Amazon Redshift 1.0.963+.
aws redshift-datalist-tables--database dev --workgroup-name default --schema-pattern "demo%" --table-pattern “orders%” Run SQL commands You can run SELECT, DML, DDL, COPY, or UNLOAD commands for Amazon Redshift with the Data API. You can optionally specify the–with-e...