instance method `explain`

Ruby on Rails 7.2.3

Since v4.2.9

Available in: v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

explain(arel, binds = [], options = [])

No documentation comment.

Parameters

arel req
binds opt = []
options opt = []

Source

# File activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb, line 7
        def explain(arel, binds = [], options = [])
          sql    = build_explain_clause(options) + " " + to_sql(arel, binds)
          result = internal_exec_query(sql, "EXPLAIN", binds)
          PostgreSQL::ExplainPrettyPrinter.new.pp(result)
        end

Defined in activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb line 7 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::PostgreSQL::DatabaseStatements

Signature

Parameters