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SQL

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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
knz
knz commented Dec 28, 2020

The structured event logged for SQL table stats collection currently does not include the application_name. It should since #58130 is merged.

The complexity here is that stats collection happens asynchronously with the SQL session. There is a "create stats job" and the job payload contains the fields from the SQL session that must be logged. Currently, this extra logged payload includes:

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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