![]() ![]() The first operator -> returns a JSON object, while the operator -> returns text. ![]() To potentially be arrays or true if you want it to assume any field can be an array. PostgreSQL has two native operators -> and -> to query JSON documents. Before the version of 9.4 jsonb data type is not available. Jsonb data type in PostgreSQL introduced from the version of 9.4. To enable subfield matching, you can pass a third parameter which is either an array of dotted paths that will be assumed In PostgreSQL, the json data type is stored actual copy of the data which was we have inserted into the table whereas jsonb data type stores the binary form of data in binary code. This tool implements it in SQL using a subquery, so it will likely not be the efficient on large datasets. With MongoDB, you can search a document with a subarray of objects that you want to match when any one of the elements in the array matches. Examples Languagesĭata ',to_jsonb(Cast(data->'purchases' as numeric)+2))ĭata->'age' DESC, data->'first'->'name' ASCĪdvanced Select: Match a Field Without Specifying Array Index ![]() We get this error because the query is expecting a JSON object in the WHERE clause. Object containing desired ordering forceNumericSortĬast strings to number when sorting. There are two data types in PostgreSQL for JSON: JSON and JSONB. nvertSort(sqlField, sortQuery, ) sortQuery This will create a safer query that works if the original document doesn't already exist. Indicate that the query is being used for upserting. Object containing MongoDB operations to apply to the documents. nvertUpdate(sqlField, updateQuery, ) updateQuery Note: advanced projection fields are not yet supported. Object specifying which a subset of documents to return. nvertSelect(sqlField, projectionQuery, ) projectionQuery This tool doesn't know which fields are arrays so you can optionally specify a list of dotted paths which should be treated as an array. mongoQueryĪn object containing MongoDB query operators. This is the name of your jsonb column in your postgres table which holds all the data. Var mToPsql = require ( 'mongo-query-to-postgres-jsonb' ) mToPsql(sqlField, mongoQuery, ) sqlField ![]()
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