pingcap/tidb

push avg & distinct functions across join when tidb_opt_agg_push_down is set

Open

#16.355 aberto em 14 de abr. de 2020

Ver no GitHub
 (3 comments) (0 reactions) (1 assignee)Go (6.186 forks)batch import
feature/acceptedhelp wantedsig/plannertype/feature-request

Métricas do repositório

Stars
 (40.090 stars)
Métricas de merge de PR
 (Mesclagem média 14d 4h) (346 fundiu PRs em 30d)

Description

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. What did you do?

When tidb_opt_agg_push_down is on, currently it does not support pushing avg function and distinct functions across Join.

After https://github.com/pingcap/tidb/pull/16344, it supports pushing those across Union, we should make it happen w/ Join, too.

2. What did you expect to see?

3. What did you see instead?

4. What version of TiDB are you using? (tidb-server -V or run select tidb_version(); on TiDB)

e90aac271

Guia do colaborador