taosdata/TDengine

the issue of resultset of taos_fetch_block

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#23,308 opened on Oct 17, 2023

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Description

int taos_fetch_block(TAOS_RES *res, TAOS_ROW *rows) 问题1：形参rows是res里的全部数据吗 问题2：TAOS_ROW的定义是什么样的 问题3：该怎么解析这里的rows 我自己理解以为是类taos_fetch_row这个读记录，只是把每条记录拼接起来，但我用block返回的行数来循环读，rows[i]的和字节偏移的方式都是到第二行是就出错了 官网没有示例程序，望添加上

Contributor guide

Research direction
Review TAOS ROW definition in header files and taos fetch block documentation; test with a simple example using taos fetch block to retrieve rows and explain how to iterate through the block.
Tech stack
c
Domain
databasedocumentation
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
C
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50