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Re: Fatal Error : Invalid Memory alloc request size 1236252631

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On 8/17/23 07:35, Sai Teja wrote:
Hi Team,

Even I used postgreSQL Large Objects by referring this link to store and retrieve large files (As bytea not working)
https://www.postgresql.org/docs/current/largeobjects.html

But even now I am unable to fetch the data at once from large objects

select lo_get(oid);

Here I'm getting the same error message.

But if I use select data from pg_large_object where loid = 49374
Then I can fetch the data but in page wise (data splitting into rows of each size 2KB)

So, here how can I fetch the data at single step rather than page by page without any error.

And I'm just wondering how do many applications storing huge amount of data in GBs? I know that there is 1GB limit for each field set by postgreSQL. If so, how to deal with these kind of situations? Would like to know about this to deal with real time scenarios.

We need to store large content (huge volume of data) and retrieve it. Currently It is not happening due to limit of field size set by postgreSQL.

Would request to share your insights and suggestions on this to help me for resolving this issue.



My first attempt at handling large payload was to use Java Selector directly in my app.  This worked but manually chunking the data was tricky.  I switched to using Tomcat and it handles large http(s) payloads seamlessly.







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