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Push GetSandboxMetricPoints time filter into SQL

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The query was fetching all rows for a (sandbox_id, tier) pair and
filtering by timestamp in Go. For repeatedly-paused sandboxes the
24h tier can accumulate up to 30 days of data, causing up to 120x
over-fetching for a 6h range request.

Add AND ts >= $3 to the query so Postgres filters on the primary key
(sandbox_id, tier, ts) directly. Drop the redundant Go-side loop.
This commit is contained in:
Rafeed M. Bhuiyan
2026-03-25 21:53:19 +06:00
parent 6eacf0f735
commit 27ff828e60
3 changed files with 12 additions and 13 deletions
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5
internal/db/metrics.sql.go
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@ -86,13 +86,14 @@ func (q *Queries) GetPeakMetrics(ctx context.Context, teamID string) (GetPeakMet
const getSandboxMetricPoints = `-- name: GetSandboxMetricPoints :many
SELECT ts, cpu_pct, mem_bytes, disk_bytes
FROM sandbox_metric_points
WHERE sandbox_id = $1 AND tier = $2
WHERE sandbox_id = $1 AND tier = $2 AND ts >= $3
ORDER BY ts ASC
`
type GetSandboxMetricPointsParams struct {
SandboxID string `json:"sandbox_id"`
Tier string `json:"tier"`
Ts int64 `json:"ts"`
}
type GetSandboxMetricPointsRow struct {
@ -103,7 +104,7 @@ type GetSandboxMetricPointsRow struct {
}
func (q *Queries) GetSandboxMetricPoints(ctx context.Context, arg GetSandboxMetricPointsParams) ([]GetSandboxMetricPointsRow, error) {
rows, err := q.db.Query(ctx, getSandboxMetricPoints, arg.SandboxID, arg.Tier)
rows, err := q.db.Query(ctx, getSandboxMetricPoints, arg.SandboxID, arg.Tier, arg.Ts)
if err != nil {
return nil, err
}