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sem/tree: add support for producing vectorized data from strings
tree.ValueHandler exposes raw machine type hooks that are used by vec_handler to build coldata.Vec's. Epic: CRDB-18892 Informs: #91831 Release note: None
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| // Copyright 2022 The Cockroach Authors. | ||
| // | ||
| // Use of this software is governed by the Business Source License | ||
| // included in the file licenses/BSL.txt. | ||
| // | ||
| // As of the Change Date specified in that file, in accordance with | ||
| // the Business Source License, use of this software will be governed | ||
| // by the Apache License, Version 2.0, included in the file | ||
| // licenses/APL.txt. | ||
|
|
||
| package coldataext | ||
|
|
||
| import ( | ||
| "time" | ||
|
|
||
| "github.com/cockroachdb/apd/v3" | ||
| "github.com/cockroachdb/cockroach/pkg/col/coldata" | ||
| "github.com/cockroachdb/cockroach/pkg/sql/sem/tree" | ||
| "github.com/cockroachdb/cockroach/pkg/util/duration" | ||
| "github.com/cockroachdb/cockroach/pkg/util/encoding" | ||
| "github.com/cockroachdb/cockroach/pkg/util/json" | ||
| "github.com/cockroachdb/cockroach/pkg/util/timeutil/pgdate" | ||
| ) | ||
|
|
||
| // MakeVecHandler makes a tree.ValueHandler that stores values to a coldata.Vec. | ||
| func MakeVecHandler(v coldata.Vec) tree.ValueHandler { | ||
| return &vecHandler{col: v} | ||
| } | ||
|
|
||
| type vecHandler struct { | ||
| col coldata.Vec | ||
| row int | ||
| } | ||
|
|
||
| var _ tree.ValueHandler = (*vecHandler)(nil) | ||
|
|
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| // Reset is used to re-use a batch handler across batches. | ||
| func (v *vecHandler) Reset() { | ||
| v.row = 0 | ||
| } | ||
|
|
||
| // Len returns the current length of the vector. | ||
| func (v *vecHandler) Len() int { | ||
| return v.row | ||
| } | ||
|
|
||
| // Decimal implements tree.ValueHandler interface. It returns a pointer into the | ||
| // vec to avoid copying. | ||
| func (v *vecHandler) Decimal() *apd.Decimal { | ||
| d := &v.col.Decimal()[v.row] | ||
| v.row++ | ||
| return d | ||
| } | ||
|
|
||
| // Null implements tree.ValueHandler interface. | ||
| func (v *vecHandler) Null() { | ||
| v.col.Nulls().SetNull(v.row) | ||
| v.row++ | ||
| } | ||
|
|
||
| // String is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) String(s string) { | ||
| v.col.Bytes().Set(v.row, encoding.UnsafeConvertStringToBytes(s)) | ||
| v.row++ | ||
| } | ||
|
|
||
| // Date is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) Date(d pgdate.Date) { | ||
| v.col.Int64().Set(v.row, d.UnixEpochDaysWithOrig()) | ||
| v.row++ | ||
| } | ||
|
|
||
| // Datum is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) Datum(d tree.Datum) { | ||
| v.col.Datum().Set(v.row, d) | ||
| v.row++ | ||
| } | ||
|
|
||
| // Bool is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) Bool(b bool) { | ||
| v.col.Bool().Set(v.row, b) | ||
| v.row++ | ||
| } | ||
|
|
||
| // Bytes is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) Bytes(b []byte) { | ||
| v.col.Bytes().Set(v.row, b) | ||
| v.row++ | ||
| } | ||
|
|
||
| // Float is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) Float(f float64) { | ||
| v.col.Float64().Set(v.row, f) | ||
| v.row++ | ||
| } | ||
|
|
||
| // Int is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) Int(i int64) { | ||
| v.col.Int64().Set(v.row, i) | ||
| v.row++ | ||
| } | ||
|
|
||
| // Duration is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) Duration(d duration.Duration) { | ||
| v.col.Interval().Set(v.row, d) | ||
| v.row++ | ||
| } | ||
|
|
||
| // JSON is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) JSON(j json.JSON) { | ||
| v.col.JSON().Set(v.row, j) | ||
| v.row++ | ||
| } | ||
|
|
||
| // TimestampTZ is part of the tree.ValueHandler interface. | ||
| func (v *vecHandler) TimestampTZ(t time.Time) { | ||
| v.col.Timestamp().Set(v.row, t) | ||
| v.row++ | ||
| } |
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