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main.go
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main.go
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// Copyright 2016 The Cockroach Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the License.
//
// Author: David Taylor (david@cockroachlabs.com)
package main
import (
gosql "database/sql"
"flag"
"fmt"
"net/url"
"os"
"github.com/cockroachdb/cockroach/pkg/sql/pgbench"
_ "github.com/lib/pq"
)
var usage = func() {
fmt.Fprintln(os.Stderr, "Creates the schema and initial data used by the `pgbench` tool")
fmt.Fprintf(os.Stderr, "\nUsage: %s <db URL>\n", os.Args[0])
flag.PrintDefaults()
}
func main() {
accounts := flag.Int("accounts", 100000, "number of accounts to create")
createDb := flag.Bool("createdb", false, "attempt to create named db, dropping first if exists (must be able to connect to default db to do so).")
flag.Parse()
flag.Usage = usage
if flag.NArg() != 1 {
flag.Usage()
os.Exit(2)
}
var db *gosql.DB
var err error
if *createDb {
name := ""
parsed, parseErr := url.Parse(flag.Arg(0))
if parseErr != nil {
panic(parseErr)
} else if len(parsed.Path) < 2 { // first char is '/'
panic("URL must include db name")
} else {
name = parsed.Path[1:]
}
db, err = pgbench.CreateAndConnect(*parsed, name)
} else {
db, err = gosql.Open("postgres", flag.Arg(0))
}
if err != nil {
panic(err)
}
defer db.Close()
if err := pgbench.SetupBenchDB(db, *accounts, false); err != nil {
panic(err)
}
}