class CQL::Postgres::ResultSet

• CQL::Postgres::ResultSet
• DB::ResultSet
• Reference
• Object

Overview

Reads rows through crystal-db's ResultSet interface, so read(Int32), read(String?) and DB::Serializable models work. The rows come from a complete Result, or lazily from a RowStream.

Defined in:

postgres/result_set.cr

Constructors

• .new(statement : DB::Statement, columns : Array(Column), rows : Iterator(Array(Types::Value)), rows_affected : -> Int64, detached : Bool = false)

  A detached set reads rows that outlived their statement's connection checkout (or a stream), so closing it must not release that connection.

• .new(statement : DB::Statement, result : Result, detached : Bool = false) : ResultSet
• .new(statement : DB::Statement, stream : RowStream) : ResultSet

Instance Method Summary

• #column_count : Int32

  Returns the number of columns in the result

• #column_name(index : Int32) : String

  Returns the name of the column in index 0-based position.

• #move_next : Bool

  Move the next row in the result.

• #next_column_index : Int32

  Returns the column index that corresponds to the next #read.

• #read

  Reads the next column value

• #rows_affected : Int64

Constructor Detail

Instance Method Detail