![]() ![]() I’d be remiss not to mention that Render was the first cloud provider I know to support PostgreSQL 14, making it available on the same day PostgreSQL 14 was released and giving our customers access to all these exciting improvements in just a few clicks. The documentation below lays it out pretty clear. It is now possible to extract / unnest specific keys from a list of objects using jsonb path queries, so long as the field queried is jsonb and not. COUNT (DISTINCT (y.x::jsonb)->'name') updated answer for postgresql versions 12+. There are many more new features and improvements, which you can read about in the PostgreSQL 14 release announcement or compare across versions in the feature matrix (deselect all versions except 14 and the one you want to compare to and select “Hide unchanged features”). 2 Answers Sorted by: 5 I'd recommend (if it isn't already) converting to the type from json to jsonb and adding a GIN index. JSONB supports the equality comparison, thus it is possible to use COUNT DISTINCT along with extraction via ->, i.e. Of course, these results are dependent on your hardware, schema, data, and queries, so you may not see the same results, but the consensus seems to be that PostgreSQL’s handling of concurrent connections has improved significantly. At 10,000 connections, that improvement went up to 50%. At 5000 active connections, they saw about a 20% improvement in throughput over PostgreSQL 13. This document describes how to create a table with a JSON column, insert JSON data into a BigQuery table, and query JSON data. In PostgreSQL, the ability to query data types directly using. ![]() The folks at pganalyze did some great performance testing using pgbench to verify this. Aaron Schlegel Support for working with JSON in PostgreSQL has become increasingly powerful since it was first introduced in. The data type JSON and JSONB, as defined by the PostgreSQL documentation, are almost identical the key difference is that JSON data is stored as an exact copy of the JSON input text. However, PostgreSQL 14’s handling of multiple client connections will likely be the performance improvement noticeable to the most people. ( 1 row ) Improved Handling of Concurrent ConnectionsĪ lot has happened behind the scenes to improve PostgreSQL performance. Like: GET /examplejsonfield->bintlt. ![]() Tsrange ( ' 13:00', ' 17:00' ) ) ) SELECT * FROM reservation 1 Answered by steve-chavez on Instead of the double arrowhead operator -> (get as text) use the single arrowhead operator -> (get as json). DROP TABLE reservation CREATE TABLE reservation (room int, during tsmultirange ) INSERT INTO reservation VALUES ( 1108, tsmultirange ( ![]()
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