程序包 org.apache.calcite.adapter.csv

Calcite query provider that reads from CSV (comma-separated value) files.

请参阅: 说明

类概要

类	说明
CsvFilterableTable	Table based on a CSV file that can implement simple filtering.
CsvProjectTableScanRule	Planner rule that projects from a CsvTableScan scan just the columns needed to satisfy a projection.
CsvScannableTable	Table based on a CSV file.
CsvSchema	Schema mapped onto a directory of CSV files.
CsvSchemaFactory	Factory that creates a CsvSchema.
CsvStreamScannableTable	Table based on a CSV file.
CsvStreamTableFactory	Factory that creates a CsvTranslatableTable.
CsvTable	Base class for table that reads CSV files.
CsvTableFactory	Factory that creates a CsvTranslatableTable.
CsvTableScan	Relational expression representing a scan of a CSV file.
CsvTranslatableTable	Table based on a CSV file.
JsonEnumerator	Enumerator that reads from a Object List.
JsonScannableTable	Table based on a JSON file.
JsonTable	Table based on a JSON file.

枚举概要

枚举	说明
CsvTable.Flavor	Various degrees of table "intelligence".

程序包org.apache.calcite.adapter.csv的说明

Calcite query provider that reads from CSV (comma-separated value) files.

A Calcite schema maps onto a directory, and each CSV file in that directory appears as a table. Full SQL operations are available on those tables.