Trino result class — TrinoResult-class • RTrino

An S4 class representing the result of a statement submitted to Trino.

Usage

# S4 method for class 'TrinoResult'
show(object)

# S4 method for class 'TrinoResult'
dbGetStatement(res, ...)

# S4 method for class 'TrinoResult'
dbGetRowCount(res, ...)

# S4 method for class 'TrinoResult'
dbGetRowsAffected(res, ...)

# S4 method for class 'TrinoResult'
dbColumnInfo(res, ...)

Arguments

object: A TrinoResult object.
res: A TrinoResult object.
...: Unused, for compatibility with the generic.

Details

Trino returns results page by page; each payload carries a nextUri to follow until the query reaches a terminal state. Because that progress is mutated as rows are fetched, and S4 slots are copy-on-modify, the mutable part of the result lives in the state environment rather than in slots. This makes res behave like a cursor, as DBI expects.

Slots

connection: The TrinoConnection the statement was sent on.
statement: The SQL statement, as a string.
state: Environment holding the mutable cursor state: next_uri, columns, data, completed, rows_fetched, query_id, and the update_type and update_count of a statement that changes something.