Preview transformation result
curl --request POST \
--url https://api.example.com/transformations/preview \
--header 'Content-Type: application/json' \
--data '
{
"sql": "<string>",
"limit": 50
}
'import requests
url = "https://api.example.com/transformations/preview"
payload = {
"sql": "<string>",
"limit": 50
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({sql: '<string>', limit: 50})
};
fetch('https://api.example.com/transformations/preview', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.example.com/transformations/preview",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'sql' => '<string>',
'limit' => 50
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.example.com/transformations/preview"
payload := strings.NewReader("{\n \"sql\": \"<string>\",\n \"limit\": 50\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.example.com/transformations/preview")
.header("Content-Type", "application/json")
.body("{\n \"sql\": \"<string>\",\n \"limit\": 50\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.example.com/transformations/preview")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"sql\": \"<string>\",\n \"limit\": 50\n}"
response = http.request(request)
puts response.read_body{
"columns": [
{}
],
"rows": [
{}
],
"total_rows": 123,
"error": "<string>"
}{
"detail": [
{
"loc": [
"<string>"
],
"msg": "<string>",
"type": "<string>",
"input": "<unknown>",
"ctx": {}
}
]
}transformations
Preview transformation result
Executes the provided SQL in DuckDB (in-memory) with the delta extension loaded and returns the first N rows (default 50) plus column types.
POST
/
transformations
/
preview
Preview transformation result
curl --request POST \
--url https://api.example.com/transformations/preview \
--header 'Content-Type: application/json' \
--data '
{
"sql": "<string>",
"limit": 50
}
'import requests
url = "https://api.example.com/transformations/preview"
payload = {
"sql": "<string>",
"limit": 50
}
headers = {"Content-Type": "application/json"}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'Content-Type': 'application/json'},
body: JSON.stringify({sql: '<string>', limit: 50})
};
fetch('https://api.example.com/transformations/preview', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.example.com/transformations/preview",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'sql' => '<string>',
'limit' => 50
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.example.com/transformations/preview"
payload := strings.NewReader("{\n \"sql\": \"<string>\",\n \"limit\": 50\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.example.com/transformations/preview")
.header("Content-Type", "application/json")
.body("{\n \"sql\": \"<string>\",\n \"limit\": 50\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.example.com/transformations/preview")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{\n \"sql\": \"<string>\",\n \"limit\": 50\n}"
response = http.request(request)
puts response.read_body{
"columns": [
{}
],
"rows": [
{}
],
"total_rows": 123,
"error": "<string>"
}{
"detail": [
{
"loc": [
"<string>"
],
"msg": "<string>",
"type": "<string>",
"input": "<unknown>",
"ctx": {}
}
]
}