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Golang SplitQueryResult.Queries方法代码示例

本文整理汇总了Golang中github.com/youtube/vitess/go/vt/tabletserver/proto.SplitQueryResult.Queries方法的典型用法代码示例。如果您正苦于以下问题:Golang SplitQueryResult.Queries方法的具体用法?Golang SplitQueryResult.Queries怎么用?Golang SplitQueryResult.Queries使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/youtube/vitess/go/vt/tabletserver/proto.SplitQueryResult的用法示例。


在下文中一共展示了SplitQueryResult.Queries方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: SplitQuery

// SplitQuery splits a BoundQuery into smaller queries that return a subset of rows from the original query.
func (sq *SqlQuery) SplitQuery(context context.Context, req *proto.SplitQueryRequest, reply *proto.SplitQueryResult) error {
	logStats := newSqlQueryStats("SplitQuery", context)
	var err error
	// TODO(sougou/anandhenry): Add session validation.
	defer handleError(&err, logStats)

	splitter := NewQuerySplitter(&(req.Query), req.SplitCount, sq.qe.schemaInfo)
	err = splitter.validateQuery()
	if err != nil {
		return NewTabletError(FAIL, "query validation error: %s", err)
	}
	// Partial initialization or QueryExecutor is enough to call execSQL
	requestContext := RequestContext{
		ctx:      context,
		logStats: logStats,
		qe:       sq.qe,
	}
	conn := getOrPanic(sq.qe.connPool)
	// TODO: For fetching pkMinMax, include where clauses on the
	// primary key, if any, in the original query which might give a narrower
	// range of PKs to work with.
	minMaxSql := fmt.Sprintf("SELECT MIN(%v), MAX(%v) FROM %v", splitter.pkCol, splitter.pkCol, splitter.tableName)
	pkMinMax := requestContext.execSQL(conn, minMaxSql, true)
	reply.Queries = splitter.split(pkMinMax)
	return nil
}
开发者ID:nangong92t,项目名称:go_src,代码行数:27,代码来源:sqlquery.go

示例2: SplitQuery

// SplitQuery is part of the queryservice.QueryService interface
func (f *FakeQueryService) SplitQuery(ctx context.Context, req *proto.SplitQueryRequest, reply *proto.SplitQueryResult) error {
	if f.hasError {
		return testTabletError
	}
	if f.panics {
		panic(fmt.Errorf("test-triggered panic"))
	}
	if !reflect.DeepEqual(req.Query, splitQueryBoundQuery) {
		f.t.Errorf("invalid SplitQuery.SplitQueryRequest.Query: got %v expected %v", req.Query, splitQueryBoundQuery)
	}
	if req.SplitCount != splitQuerySplitCount {
		f.t.Errorf("invalid SplitQuery.SplitQueryRequest.SplitCount: got %v expected %v", req.SplitCount, splitQuerySplitCount)
	}
	reply.Queries = splitQueryQuerySplitList
	return nil
}
开发者ID:kissthink,项目名称:vitess,代码行数:17,代码来源:tabletconntest.go

示例3: SplitQuery

// SplitQuery is part of the queryservice.QueryService interface
func (f *FakeQueryService) SplitQuery(ctx context.Context, target *pb.Target, req *proto.SplitQueryRequest, reply *proto.SplitQueryResult) error {
	if f.panics {
		panic(fmt.Errorf("test-triggered panic"))
	}
	if f.checkExtraFields {
		f.checkTargetCallerID(ctx, "SplitQuery", target)
	}
	if !reflect.DeepEqual(req.Query, splitQueryBoundQuery) {
		f.t.Errorf("invalid SplitQuery.SplitQueryRequest.Query: got %v expected %v", req.Query, splitQueryBoundQuery)
	}
	if req.SplitColumn != splitQuerySplitColumn {
		f.t.Errorf("invalid SplitQuery.SplitQueryRequest.SplitColumn: got %v expected %v", req.SplitColumn, splitQuerySplitColumn)
	}
	if req.SplitCount != splitQuerySplitCount {
		f.t.Errorf("invalid SplitQuery.SplitQueryRequest.SplitCount: got %v expected %v", req.SplitCount, splitQuerySplitCount)
	}
	reply.Queries = splitQueryQuerySplitList
	return nil
}
开发者ID:haoqoo,项目名称:vitess,代码行数:20,代码来源:tabletconntest.go


注:本文中的github.com/youtube/vitess/go/vt/tabletserver/proto.SplitQueryResult.Queries方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。