%Library.AbstractForeignTable

String of header names for FILE foreign tables to specify column order in the header

Types specified in the COLUMNS clause; included for parity with LOAD DATA

Number of columns in the table (IRIS side)

Does this FT support predicated pushdown; taken from SERVER

Name of the class that projects this foreign table

Optional user-specified query to send to the external DB

Name of the server this foreign table belongs to

Name of the table as it exists in the external data source

USING clause at CREATE time

Comma-delimited string of column names as they exist in the external table

Serialize a foreign table class into a %DynamicObject that contains interesting parameters on that class for the purposes of handing table information to a foreign data wrapper. This table config can be handed to the validateTableConfig() method of any %SQL.FDW.Wrapper.BaseWrapper subclass in order to validate that it contains sufficient table configuration information for the wrapper to fulfill its intended purpose. Although parameters are defined on the class in all upper case as a matter of convention, these parameters are serialized in the config object using camel case, with the first word lower cased. For example, "table" or "columnsTypes". An example of a serialized table config (in this case, a CSV foreign table) that may be returned is: { "columns": ["header1", "header2", "header3"], "columnsTypes": ["INT", "INT", "VARCHAR(50)"], "table": "file.csv", "using": {"from":{"file":{"header": false}}}, "values": ["header1", "header3"] }