# Install

create database `example-update-massive`

configure `.env`

```dotenv
DB_CONNECTION=pgsql
DB_HOST=postgres
DB_PORT=5432
DB_DATABASE=example-update-massive
DB_USERNAME=default
DB_PASSWORD=secret

QUEUE_CONNECTION=database

ITEMS_COUNT=10000
```

`ITEMS_COUNT` é a variavel que irá definir quantos registros a fatory irá criar no banco de dados.

run migrate;

```shell
php artisan migrate:fresh --seed
```

# Analyse Insert

```shell
php artisan app:mass-insert --count=100
php artisan queue:work --queue=default
```

[MassInsert1](https://gitea.nteia.com/johdougss/example-update-massive/src/branch/main/app/Tasks/MassInsert/MassInsert1Task.php),
[MassInsert2](https://gitea.nteia.com/johdougss/example-update-massive/src/branch/main/app/Tasks/MassInsert/MassInsert2Task.php),
[MassInsert3](https://gitea.nteia.com/johdougss/example-update-massive/src/branch/main/app/Tasks/MassInsert/MassInsert3Task.php),
[MassInsert4](https://gitea.nteia.com/johdougss/example-update-massive/src/branch/main/app/Tasks/MassInsert/MassInsert4Task.php),
[MassInsert5](https://gitea.nteia.com/johdougss/example-update-massive/src/branch/main/app/Tasks/MassInsert/MassInsert5Task.php),
[MassInsert6](https://gitea.nteia.com/johdougss/example-update-massive/src/branch/main/app/Tasks/MassInsert/MassInsert6Task.php)

### Result

| quantity | method  | time seconds |
|---------:|---------|-------------:|
|      100 | Insert1 |        0,166 |
|      100 | Insert2 |        0,015 |
|      100 | Insert3 |        0,015 |
|      100 | Insert4 |        0,044 |
|      100 | Insert5 |        0,040 |
|      100 | Insert6 |        0,125 |

| quantity | method  | time seconds |
|---------:|---------|-------------:|
|    1.000 | Insert1 |        1,000 |
|    1.000 | Insert2 |        0,087 |
|    1.000 | Insert3 |        0,087 |
|    1.000 | Insert4 |        0,352 |
|    1.000 | Insert5 |        0,343 |
|    1.000 | Insert6 |        1,000 |

| quantity | method  | time seconds |
|---------:|---------|-------------:|
|   10.000 | Insert1 |       13,000 |
|   10.000 | Insert2 |        0,789 |
|   10.000 | Insert3 |        0,795 |
|   10.000 | Insert4 |        3,000 |
|   10.000 | Insert5 |        3,000 |
|   10.000 | Insert6 |       11,000 |

| quantity | method  | time seconds |
|---------:|---------|-------------:|
|  100.000 | Insert1 | `2m 43s` 163 |
|  100.000 | Insert2 |      `error` |
|  100.000 | Insert3 |            8 |
|  100.000 | Insert4 |           35 |
|  100.000 | Insert5 |           34 |
|  100.000 | Insert6 | `2m 27s` 147 |

|  quantity | method  | time second |
|----------:|---------|------------:|
| 1.000.000 | Insert1 |    1952,320 |
| 1.000.000 | Insert2 |     `error` |
| 1.000.000 | Insert3 |     950,000 |
| 1.000.000 | Insert4 |     950,000 |
| 1.000.000 | Insert5 |           - |
| 1.000.000 | Insert6 |           - |

# Analyse Update

## Grupo 1:

Atualizar um campo ou mais, mas o valor é o `mesmo` para um determinado grupo:

`Update1Job`

```sql
update transactions
set date=now(),
    value=1
where id = 1;

update transactions
set date=now(),
    value=1
where id = 2;

update transactions
set date=now(),
    value=1
where id = 3;
...
``` 

`Update2Job`

```sql
update transactions
set date=now(),
    value=1
where id in (1, 2, 3, . . .);
```

### Result

|  quantity | method            |       time seconds | performance |
|----------:|-------------------|-------------------:|------------:|
|     1.000 | UpdateMassive1Job |              1,00s |           - |
|     1.000 | UpdateMassive2Job |              0,01s |        100x |
|    10.000 | UpdateMassive1Job |             14,00s |           - |
|    10.000 | UpdateMassive2Job |              0,14s |        100x |
|   100.000 | UpdateMassive1Job |   (2m 36s) 156,00s |           - |              
|   100.000 | UpdateMassive2Job |              1,00s |        156x |
| 1.000.000 | UpdateMassive1Job | (26m 10s) 1570,00s |           - |              
| 1.000.000 | UpdateMassive2Job |             15,00s |        104x |

## Grupo 2:

Atualizar um campo ou mais, mas o valor é o `diferente` para cada registro:

`Update3Job`

```sql
update transactions
set date='2023-04-01',
    value=10
where id = 1;

update transactions
set date='2023-04-02',
    value=20
where id = 2;

update transactions
set date='2023-04-03',
    value=30
where id = 3;
``` 

`Update4Job`

```sql
update transactions
set date = case id when 1 then '2023-04-01'::date
     when 2 then '2023-04-02'::date 
     when 3 then '2023-04-03'::date
end
,
    value = case id when 1 then 10
     when 2 then 20 
     when 3 then 30
end
where id in (1, 2, 3);
```

`Update5Job`

```sql
update transactions as t
set date  = v.date,
    value = v.value from (
      values (1, '2023-04-01'::date, 10),
             (2, '2023-04-02'::date, 20),
             (3, '2023-04-03'::date, 30)
    ) as v(id, date, value)
where t.id = v.id;
```

### Result

|  quantity | method            |       time seconds | performance |
|----------:|-------------------|-------------------:|------------:|
|     1.000 | UpdateMassive3Job |              1,00s |           - |
|     1.000 | UpdateMassive4Job |              0,08s |         12x |
|     1.000 | UpdateMassive5Job |              0,06s |         16x |
|    10.000 | UpdateMassive3Job |             14,00s |           - |
|    10.000 | UpdateMassive4Job |              0,73s |         19x |
|    10.000 | UpdateMassive5Job |              0,59s |         23x |
|   100.000 | UpdateMassive3Job |   (2m 44s) 164,00s |           - |          
|   100.000 | UpdateMassive4Job |              8,00s |         20x |      
|   100.000 | UpdateMassive5Job |              7,00s |         23x |
| 1.000.000 | UpdateMassive3Job | (27m 10s) 1630,00s |           - |              
| 1.000.000 | UpdateMassive4Job |    (1m 15s) 75,00s |         21x |              
| 1.000.000 | UpdateMassive5Job |             58,00s |         28x |