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Implement pushdown for aggregate for PostgreSQL #3607

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merged 10 commits into from
Oct 23, 2023
Merged

Implement pushdown for aggregate for PostgreSQL #3607

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d3cf00e
wip
noisersup Oct 18, 2023
44e5645
wip
noisersup Oct 18, 2023
ff6e7e2
wip
noisersup Oct 18, 2023
8ed8da7
Merge remote-tracking branch 'upstream/main' into aggregation-pushdow…
noisersup Oct 18, 2023
b34bf88
wip
noisersup Oct 19, 2023
100e9c3
Merge remote-tracking branch 'upstream/main' into aggregation-pushdow…
noisersup Oct 19, 2023
883975c
wip
noisersup Oct 19, 2023
5f2f64a
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noisersup Oct 20, 2023
80ba1ae
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noisersup Oct 20, 2023
8a4dd60
Merge branch 'main' into aggregation-pushdown-sqlite-3520
AlekSi Oct 23, 2023
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@noisersup
noisersup committed Oct 18, 2023
commit ff6e7e22a023836ba7a3ae638fea3b4efccab2a2
22 changes: 15 additions & 7 deletions internal/handlers/sqlite/msg_explain.go
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Expand Up @@ -79,18 +79,18 @@ func (h *Handler) MsgExplain(ctx context.Context, msg *wire.OpMsg) (*wire.OpMsg,
return nil, lazyerrors.Error(err)
}

var qp backends.ExplainParams

if params.Aggregate {
qp.Filter, _ = aggregations.GetPushdownQuery(params.StagesDocs)
qp := backends.ExplainParams{
Filter: params.Filter,
}

if h.DisableFilterPushdown {
qp.Filter = nil
sort := params.Sort

if params.Aggregate {
qp.Filter, sort = aggregations.GetPushdownQuery(params.StagesDocs)
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}

// Skip sorting if there are more than one sort parameters
if h.EnableSortPushdown && params.Sort.Len() == 1 {
if h.EnableSortPushdown && sort.Len() == 1 {
var order types.SortType

k := params.Sort.Keys()[0]
Expand All @@ -107,6 +107,14 @@ func (h *Handler) MsgExplain(ctx context.Context, msg *wire.OpMsg) (*wire.OpMsg,
}
}

if h.DisableFilterPushdown {
qp.Filter = nil
}

if !h.EnableSortPushdown {
qp.Sort = nil
}

res, err := coll.Explain(ctx, &qp)
if err != nil {
return nil, lazyerrors.Error(err)
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