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88 lines
2.1 KiB
88 lines
2.1 KiB
// Copyright 2016 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"flag"
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"os"
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"github.com/pingcap/errors"
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"github.com/pingcap/log"
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"go.uber.org/zap"
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)
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func main() {
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cfg := NewConfig()
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err := cfg.Parse(os.Args[1:])
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switch errors.Cause(err) {
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case nil:
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case flag.ErrHelp:
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os.Exit(0)
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default:
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log.Error("parse cmd flags", zap.Error(err))
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os.Exit(2)
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}
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table := newTable()
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err = parseTableSQL(table, cfg.DDLCfg.TableSQL)
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if err != nil {
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log.Fatal(err.Error())
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}
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err = parseIndexSQL(table, cfg.DDLCfg.IndexSQL)
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if err != nil {
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log.Fatal(err.Error())
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}
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dbs, err := createDBs(cfg.DBCfg, cfg.SysCfg.WorkerCount)
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if err != nil {
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log.Fatal(err.Error())
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}
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defer closeDBs(dbs)
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if len(cfg.StatsCfg.Path) > 0 {
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statsInfo, err1 := loadStats(table.tblInfo, cfg.StatsCfg.Path)
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if err1 != nil {
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log.Fatal(err1.Error())
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}
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for _, idxInfo := range table.tblInfo.Indices {
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offset := idxInfo.Columns[0].Offset
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if hist, ok := statsInfo.Indices[idxInfo.ID]; ok && len(hist.Buckets) > 0 {
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table.columns[offset].hist = &histogram{
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Histogram: hist.Histogram,
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index: hist.Info,
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}
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}
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}
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for i, colInfo := range table.tblInfo.Columns {
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if hist, ok := statsInfo.Columns[colInfo.ID]; ok && table.columns[i].hist == nil && len(hist.Buckets) > 0 {
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table.columns[i].hist = &histogram{
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Histogram: hist.Histogram,
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}
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}
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}
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}
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err = execSQL(dbs[0], cfg.DDLCfg.TableSQL)
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if err != nil {
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log.Fatal(err.Error())
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}
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err = execSQL(dbs[0], cfg.DDLCfg.IndexSQL)
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if err != nil {
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log.Fatal(err.Error())
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}
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doProcess(table, dbs, cfg.SysCfg.JobCount, cfg.SysCfg.WorkerCount, cfg.SysCfg.Batch)
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}
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