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fix(eventstore): precise decimal (#8527)

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# Which Problems Are Solved

Float64 which was used for the event.Position field is [not precise in
go and gets rounded](https://github.com/golang/go/issues/47300). This
can lead to unprecies position tracking of events and therefore
projections especially on cockcoachdb as the position used there is a
big number.

example of a unprecies position:
exact: 1725257931223002628
float64: 1725257931223002624.000000

# How the Problems Are Solved

The float64 was replaced by
[github.com/jackc/pgx-shopspring-decimal](https://github.com/jackc/pgx-shopspring-decimal).

# Additional Changes

Correct behaviour of makefile for load tests.
Rename `latestSequence`-queries to `latestPosition`
This commit is contained in:
Silvan
2024-09-06 11:19:19 +02:00
committed by GitHub
parent 2981ff04da
commit b522588d98
47 changed files with 319 additions and 215 deletions
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7
internal/database/cockroach/crdb.go
View File

@@ -7,6 +7,8 @@ import (
"strings"
"time"
pgxdecimal "github.com/jackc/pgx-shopspring-decimal"
"github.com/jackc/pgx/v5"
"github.com/jackc/pgx/v5/pgxpool"
"github.com/jackc/pgx/v5/stdlib"
"github.com/mitchellh/mapstructure"
@@ -82,6 +84,11 @@ func (c *Config) Connect(useAdmin bool, pusherRatio, spoolerRatio float64, purpo
return nil, err
}
config.AfterConnect = func(ctx context.Context, conn *pgx.Conn) error {
pgxdecimal.Register(conn.TypeMap())
return nil
}
if connConfig.MaxOpenConns != 0 {
config.MaxConns = int32(connConfig.MaxOpenConns)
}

6
internal/database/postgres/pg.go
View File

@@ -7,6 +7,8 @@ import (
"strings"
"time"
pgxdecimal "github.com/jackc/pgx-shopspring-decimal"
"github.com/jackc/pgx/v5"
"github.com/jackc/pgx/v5/pgxpool"
"github.com/jackc/pgx/v5/stdlib"
"github.com/mitchellh/mapstructure"
@@ -82,6 +84,10 @@ func (c *Config) Connect(useAdmin bool, pusherRatio, spoolerRatio float64, purpo
if err != nil {
return nil, err
}
config.AfterConnect = func(ctx context.Context, conn *pgx.Conn) error {
pgxdecimal.Register(conn.TypeMap())
return nil
}
if connConfig.MaxOpenConns != 0 {
config.MaxConns = int32(connConfig.MaxOpenConns)