I have the following query which I'm unable to solve: SELECT DISTINCT m.id, TO_CHAR(m.date, 'YYYY-MM-DD')::timestamp AS formatted_date, FROM table.match m In the formatted_date field I get the following output: 2012-12-02T00:00:00.000Z Does anyone know how to format it as to get…
When I try to load a Redis database with Redis Stack 7.2 from an RDB file which has been created with a prior version of RS, it does not load, printing this error: * Loading RDB produced by version 6.2.13…
I have a table called Configuration: CREATE TABLE "Configuration" ( "id" CHAR(36) NOT NULL, "namespace" VARCHAR(255) NOT NULL, "key" VARCHAR(255) NOT NULL, "value" JSONB NOT NULL, "level" "ConfigLevel" NOT NULL, "userId" CHAR(36), "orgId" CHAR(36), "teamId" CHAR(36), "moduleId" CHAR(36), "moduleSubscriptionId" CHAR(36),…
In one of my Postgres Transaction (executing a procedure), I'm using more than 50 temp tables and for each temp table it is creating pg_toast_temptableOID, pg_toast_temptableOID_index with AccessExclusiveLock and fastpath = false for these pg_toast tables. It is creating slowness…
I have started the working on transaction concept of database but, I don't know when to use transaction and when we should not? Suppose, If I am running simple SELECT * FROM table_name query. So, Do I have to use…
Imaging a query that delivers "posts" in a specific time period between "from" and "to". A simple query. Additionally, I need to get ONE record BEFORE and ONE record AFTER what the original query specified. For example, a table holds…
I have a table with two columns. One is Name, other is Mark. Mark can be low, mid or high. Under every name, i want count of high low and mid. enter image description here
db.inventory.aggregate( [ { $lookup: { from: "order", localField: "_id", foreignField: "item_id", as: "inventory_docs" } } ] ) The $lookup is joining based on the item_id field, which is indexed. If 100,000 documents pass through this $lookup, it increased the query…
When creating a new user in Postgres, I have a trigger that automatically creates a chat for him (like saved messages in telegram). I also have a chat_members table in the database that stores chat members in a many-to-many relationship…
ыI have a table with a json as a field. The structure of a json is completly random but it never has inner objects inside. data {"test": "baa-1496", "test2": "baa-1431", "test3": "baa-1497"} {"test": "baa-1452", "test4": "baa-1597"} i want to turn…