I encountered a small problem here.
SELECT DISTINCT ON (“reporting_processedamazonsnapshot”.”offer_id”) *
FROM “reporting_processedamazonsnapshot” INNER JOIN
“offers_boooffer”
ON (“report
Tag: PostgreSQL
PostgreSQL – Database exception in Slick 3.0 when insertion insertion
By batch inserting thousands of records every 5 seconds in Smooth 3, I got
org.postgresql .util.PSQLException: FATAL: sorry, too many clients already My data access layer looks like:
va
Mono a function for each updated row in PostgreSQL
I have a sql UPDATE statement in the plpgsql function. I now want to call the pg_notify function for each updated row, and am not sure if my solution is the best possibility.
I don’t know whe
Receive the postgreSQL backend behavior after “Termination” (‘x’) after “Commit”
We run postgres server v9.2.8 and use epgsql (erlang) as the client library. In some cases, we produce in a production environment but cannot reproduce it in a development environment , We are losi
PostgreSQL Change Configuration Question
Supplement: How to determine the path of the psql configuration file
①Switch to the psql user, here is thunisoft.
② There are many ways to determine the path, here are some commonly use
Find loop references in the PostgreSQL table?
I have a property sheet (ID int,SourceID int,TargetID int,TargetType int)
ID SourceID TargetID< br />———————
1 123 456
2 456 789
3 1 123
4 456 1
5 2 1
I want to find all circular references. I want to write a PL/pgsql function for this.
here ID 4 = 456 1 123 456 circular reference
Recursive JSON in PostgreSQL
I have the following table in PostgreSQL 9.5 server:
It is worth noting that the position is theoretically infinitely recursive. I need to generate a JSON message from the root position and r
PostgreSQL – HIVE flow does not work
I try to follow https://cwiki.apache.org/confluence/display/Hive/Streaming+Data+Ingest#StreamingDataIngest-StreamingRequirements to enable hive streaming I have changed all configuration properties
PostgreSQL – JSON WHERE uses Query Builder to CLAUSE
This is the JSON value in the data column of a thing table:
{a: [{b: 1} , {b: 2}]} I can use the original query like this to get all the content containing b equal to 1:
select * from t
PostgreSQL big data query Adex sumcore and non-Caocau
1. Create a test table
CREATE TABLE big_data
(
id character varying(50) NOT NULL,
name character varying(50),
datetime timestamp with time zone,
CONSTRAINT big_data_pkey PRIMARY KEY (id)