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Which is better JSONB or hstore for indexing?
An advantage with hstore is the fast indexing (GiN or GiST). However, with JSONB, GiN and GiST indexing can also be applied to JSON data.
Is it possible to index JSON in SQL Server?
Index JSON data. In SQL Server and SQL Database, JSON is not a built-in data type, and SQL Server does not have custom JSON indexes. You can optimize your queries over JSON documents, however, by using standard indexes. Database indexes improve the performance of filter and sort operations.
How are JSON values ordered in an index?
The result of the JSON_VALUE function that you use when you create the computed column is a text value that inherits its collation from the input expression. Therefore, values in the index are ordered using the collation rules defined in the source columns.
How are indexes over JSON data collation aware?
JSON indexes are collation-aware indexes. An important feature of indexes over JSON data is that the indexes are collation-aware. The result of the JSON_VALUE function that you use when you create the computed column is a text value that inherits its collation from the input expression.
What does Postgres do for a JSON database?
Postgres provides data constraint and validation functions, which help to ensure JSON documents are more meaningful. E.g. It stops you from storing alphabetical characters when only numerical values make sense.
Which is better, PostgreSQL NoSQL or hstore database?
Generally, in Postgres, hstore is known to perform better than other data types. This presentation from FOSDEM PGDAY has some interesting stats (in the second half of the slides). https://wiki.postgresql.org/images/b/b4/Pg-as-nosql-pgday-fosdem-2013.pdf An advantage with hstore is the fast indexing (GiN or GiST).
Which is better MongoDB or PostgreSQL for unstructured data?
MongoDB is ideal for unstructured data, but if you plan to move to a mix of structured and unstructured data later on, or if you think ACID compliance might become important in the future, Postgres may work best. Are you using static JSON data?