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SQL stands for structured query language. It uses commands such as "select", "insert", "update", "delete". Some common relational database management systems that use SQL are: Oracle, MySQL, Microsoft SQL Server, PostgreSQL, etc.

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cockroach
yuzefovich
yuzefovich commented Dec 29, 2020

Most aggregate functions support multi-stage distributed execution in which on every node we perform a local aggregation, then we route all the intermediate results to all of the nodes (according to the grouping columns), and then we perform a final aggregation that gives us the result. For some aggregate functions the decomposition into local and final stages is trivial - e.g. in order to calcula

dbeaver
KOLANICH
KOLANICH commented Jan 11, 2019

Sometimes it is needed to store compressed data in the DB. Unfortunately not all the DBs have built-in compression and FUSE compressed FSes are not available for every OS. So it may make sense to store compressed binary blobs in the DB.

Unfortunately when one sees them in DBeaver he sees them compressed, but often they are needed uncompressed. So it'd be nice to have a feature to decompress the

ClickHouse
yunchat
yunchat commented Nov 13, 2018

Now insert and query share the resource ( Max Process Count control) 。 When the query with high TPS,the insert will get error (“error: too many process”). I think separator the resource for Insert and Query will makes sense. Ensure enough resource for insert。It looks like Use Yarn, Insert and Query use the different resource quota。
Or the simple way , Can we set Ratio for Insert and

rijkvanzanten
rijkvanzanten commented Jul 23, 2020

Environment

Knex version: 0.21.2

Bug

  1. Explain what kind of behaviour you are getting and how you think it should do

The docs describe creating a datetime column by using table.datetime(): http://knexjs.org/#Schema-datetime

However, the TypeScript definition and tests seem to indicate it should be table.dateTime():

https://github.com/knex/knex/blob/b59161f9944acf858b14

devops-exercises
surister
surister commented Jan 21, 2020

This is a reminder for me or a task if anyone wants :P

imagen

Basically, The last two questions aren't really regex's questions.

To do:

  • Move said questions to correct place.
  • Add new regex questions (Python related!)?
  • Maybe add a new ## Regex section, as it is a valuable skill
JeanGolang
JeanGolang commented Feb 7, 2017

Hello Philip!
I think there is an issue with this part of the code of rqlite (store/store.go).

func (s *Store) Database(leader bool) ([]byte, error) {
	if leader && s.raft.State() != raft.Leader {
		return nil, ErrNotLeader
	}
	// Ensure only one snapshot can take place at once, and block all queries.
	s.mu.Lock()
	defer s.mu.Unlock()

	f, err := ioutil.TempFile("", "rqlilte-snap-

Created by Donald D. Chamberlin, Raymond F. Boyce

Released 1986

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