Tagged Questions

1
vote
1answer
38 views

Postgresql function to create table

I want to create a function in order to create a table with a specific structure pasing part of the name of the table as an argument so the name of the table is t_ . Similar to this: CREATE OR ...
1
vote
1answer
52 views

Pass a table array as a parameter to an upsert function in postgresql

i have an UPSERT function which works well but i update and insert records in batches, can this function be modified so that i just pass all the records to this function as an array then it will ...
2
votes
1answer
57 views

How to access the number of rows accumulated by RETURNs in PL/pgSQL

When performing RETURN QUERY ... in a PL/pgSQL function, is it possible afterwards to directly access the number of rows accumulated into the pile of records, which are returned when the function ...
1
vote
2answers
100 views

Recursive query using plpgsql

I'm trying to write a plpgsql function that recursively returns a set of columns from records in a tree structure. I have a data table and a table to link the data together: DATATABLE ----------- id ...
4
votes
1answer
923 views

Create index if it does not exist

I am working on a function that allows me to add an index if it does not exist. I am running into the problem that I cannot get a list of indexes to compare to. Any thoughts? This is a similar issue ...
5
votes
3answers
123 views

How to pass a table type with an array field to a function in postgresql

i have a table called book CREATE TABLE book ( id smallint NOT NULL DEFAULT 0, bname text, btype text, bprices numeric(11,2)[], CONSTRAINT key PRIMARY KEY (id ) ) and a ...
-1
votes
1answer
87 views

Undefined reference to my function [closed]

I'm working on a project on postgresql 8.4 server side. I'm adding some functionality in order to store some query informations. I need to call two functions (start_create_profile() and check()) ...
6
votes
3answers
202 views

Store a formula in a table and use the formula in a function

I have a PostgreSQL 9.1 database where part of it handles agent commissions. Each agent has his/her own formula of calculation how much commission they get. I have a function to generate the amount of ...
0
votes
2answers
185 views

Interactive INSERT / UPDATE function to implement UPSERT

I have a function in PostgreSQL 9.1 that I want client applications to be passing a record object and the function will detect if it's an insert or an update and return the operation done, i.e "1 ...
1
vote
1answer
98 views

PostgreSQL How do I convert struct text to plain *char in C functions?

I'm using my internal C function which doesn't know about postgresql's text struct, how do I pass text argument when char * expected? #include <stdio.h> #include <string.h> #include ...
3
votes
2answers
130 views

Custom Postgres function not working

I wrote this function that is supposed to iterate through a text array and convert each element (which is a typecasted integer) to hex, append to a text variable, then return the hex. However, I get ...
0
votes
1answer
203 views

Transform all columns records to lowercase

I'm using PostgreSQL 9.1 and I have a users table with a login column. login names are case-sensitive, for example Bob, MikE, john. I would like to transform all these records into lowercase. ...
4
votes
1answer
202 views

Is it possible to wrap aggregate functions in Postgres?

Postgres' string_agg(expr, delimiter) function is great. But I would like to have a version that takes a single argument -- the field to aggregate -- and assumes a delimiter of ', ' since that is ...
4
votes
1answer
1k views

How to use aes-encryption in PostgreSQL?

I tried aes-encryption by using following statement: SELECT encrypt('test', 'key', 'aes'); which worked, but I am not able to decrypt the value. I inserted it in a field of datatype bytea but I'm ...
3
votes
1answer
807 views

Function/procedure to use dblink to fetch remote data and insert to multiple local tables

Am trying to fetch data from remote db and insert into three local tables. Currently I have a query which is successfully getting the data into one table. But now I was thinking of creating a ...
0
votes
0answers
160 views

PostgreSQL Function PERFORM [closed]

CREATE OR REPLACE FUNCTION "insertarNuevoArticulo"(nombrearticulo character varying, descripcion text, idtipo integer, idfamilia bigint, artstock integer, minstock integer, maxstock integer, idmarca ...