GOCQL is the golang driver for connecting to Cassandra.
GOCQL is the Google go language's driver for connecting to Apache Cassandra.
Questions tagged [gocql]
91 questions
0
votes
0 answers
gocql bind not working in the case of concurrent calls
I have been trying to reuse a the prepared query in concurrent calls.
type product struct {
query *gocql.Query
}
type resp struct {
Pk string
Product Product
Err error
}
func (p *product) A() {
...
respFromDB := make(chan…
Adith Dev Reddy
- 55
- 1
- 6
0
votes
0 answers
Cassandra inconsistent/partial records inserted
I have a table where I have 4 columns A,B,C,D namely. I am using LWT for all create/update/delete operations in this table. A is my only primary key.
My queries are somewhat like this:-
INSERT INTO xTable(A,B,D) Values ('123','','456') IF NOT…
Vishal Gaikwad
- 99
- 6
0
votes
1 answer
Initialize gocql ips using a constant
I need to initialize gocql with multiple ips, I want to pass the ips from a variable/constant.
How to pass some thing like
gocql.NewCluster(ipvalues)
instead of using
gocql.NewCluster("127.0.0.1", "127.0.0.2")
i want to pass the list of ips…
Gokul Raj Kumar
- 335
- 2
- 9
0
votes
1 answer
MapScan can not unmarshal to non-pointer int64
I used MapScan and iterate on it with this error
can not unmarshal into non-pointer int64
Errors out after the first iteration.
This is the code I was working on:
type NotFinishedTBLFields struct {
Bulk_id int64
Recipient …
elham anari
- 518
- 2
- 8
- 22
0
votes
1 answer
Create type inside if condition
Requirement:
type A struct {//some code}
type B struct {//some code}
func getData(db string) interface{} {
if db == "dbA" { // problem with this if condition
type C A
} else {
type C B
}
var byteData []byte
…
Nannan AV
- 419
- 7
- 22
0
votes
0 answers
CQLC: Go Cassandra query returning page token for boundary limit?
In my Cassandra database for a particular query, I have 8 records, and I am using GoLang relops/cqlc library.
When I query with limit = 8, it returns 8 records with a PageState which is to be used as page token for the next set of results. I don't…
Tanny
- 540
- 4
- 29
0
votes
1 answer
On using DCAwareRoundRobinPolicy, read also searching on remote hosts
I am using DCAwareRoundRobinPolicy for my cassandra connection. But the time taken for querying by my driver is comparatively larger than when i am using the same connection parameters in php.
The datastax driver in php uses the function to the the…
Nupur Bansal
- 21
- 1
- 3
0
votes
1 answer
Storing slice of bytes in Cassandra using gocql driver
How to store slice of bytes as cassandra blob type using gocql driver?
Назар Коблай
- 13
- 1
0
votes
0 answers
'go test' returns error "gocql: no response received from cassandra within timeout period."
So i want to test out an API that interacts with Cassandra on my local machine. In my func TestMain(m *testing.M) function, i want to clear the tables before running the tests. The TestMain function looks like this...
func TestMain(m *testing.M) {
…
SomeGuyFortune
- 1,024
- 13
- 26
0
votes
1 answer
Variadic arguments in cassandra query with gocql
I want to make a generic function for performing cassandra queries using the gocql client, something like :
queryExec("INSERT INTO USERS VALUES(?,?,?,?)", userId, emailId, mobileNo, gender)
func queryExec(query string, args ...interface{})…
chetan dev
- 611
- 2
- 6
- 16
0
votes
1 answer
UDT are not available on protocols less than 3, please update config"
Using UDT:
Note: cqlsh: show version
[cqlsh 5.0.1 | Cassandra 2.2.1 | CQL spec 3.3.0 | Native protocol v4]
Tables
CREATE TYPE fullname (
firstname text,
lastname text
);
CREATE TABLE sample (
id int PRIMARY KEY,
name frozen…
Chris G.
- 23,930
- 48
- 177
- 302
0
votes
1 answer
SliceMap when using PageSize
I am trying to implement paging but when I use SliceMap with PageSize I get all the rows - do you know why and what to do?
Note: I need the row maps keyed by CQL column mames.
iter := session.Query("SELECT * FROM…
Chris G.
- 23,930
- 48
- 177
- 302
0
votes
1 answer
How do you execute a cql file using gocql?
If you were to interface directly with Cassandra using cqlsh you could do the following:
$ cqlsh
cqlsh:test> SOURCE '/home/me/reset_db.cql'
I've tried to do this using gocql several times but I always get an error. For example, running…
user2800390
- 83
- 5
0
votes
1 answer
Transaction in cassandra and I am using gocql
How can you make sure that one user insert is not influenced by another user?
Like transactions...
Do you use a batch job in combination with IF NOT EXISTS?
BEGIN UNLOGGED BATCH
INSERT INTO atable ("user1") value (10)
INSERT INTO atable ("user2")…
Chris G.
- 23,930
- 48
- 177
- 302
-2
votes
1 answer
Writing timestamps to database - gocql vs cqlsh
Desired format to write time stamp, in cassandra database:
2021-01-17 21:51:46.195
Using cqlsh syntax for insert query:
am able to write the above format using toTimeStamp(toDate(now()))
Using cqlsh, am unable to write the above format using…
overexchange
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