github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/sql/delegate/show_sessions.go (about)

     1  // Copyright 2017 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  package delegate
    12  
    13  import (
    14  	"github.com/cockroachdb/cockroach/pkg/sql/sem/tree"
    15  	"github.com/cockroachdb/cockroach/pkg/sql/sqlbase"
    16  )
    17  
    18  func (d *delegator) delegateShowSessions(n *tree.ShowSessions) (tree.Statement, error) {
    19  	const query = `SELECT node_id, session_id, user_name, client_address, application_name, active_queries, last_active_query, session_start, oldest_query_start FROM crdb_internal.`
    20  	table := `node_sessions`
    21  	if n.Cluster {
    22  		table = `cluster_sessions`
    23  	}
    24  	var filter string
    25  	if !n.All {
    26  		filter = " WHERE application_name NOT LIKE '" + sqlbase.InternalAppNamePrefix + "%'"
    27  	}
    28  	return parse(query + table + filter)
    29  }