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b59555057d
https://github.com/milvus-io/milvus/issues/35528 This PR adds json index support for json and dynamic fields. Now you can only do unary query like 'a["b"] > 1' using this index. We will support more filter type later. basic usage: ``` collection.create_index("json_field", {"index_type": "INVERTED", "params": {"json_cast_type": DataType.STRING, "json_path": 'json_field["a"]["b"]'}}) ``` There are some limits to use this index: 1. If a record does not have the json path you specify, it will be ignored and there will not be an error. 2. If a value of the json path fails to be cast to the type you specify, it will be ignored and there will not be an error. 3. A specific json path can have only one json index. 4. If you try to create more than one json indexes for one json field, sdk(pymilvus<=2.4.7) may return immediately because of internal implementation. This will be fixed in a later version. --------- Signed-off-by: sunby <sunbingyi1992@gmail.com>
43 lines
1.4 KiB
Go
43 lines
1.4 KiB
Go
package indexparamcheck
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import (
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"fmt"
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"github.com/milvus-io/milvus-proto/go-api/v2/schemapb"
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"github.com/milvus-io/milvus/pkg/common"
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"github.com/milvus-io/milvus/pkg/util/merr"
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"github.com/milvus-io/milvus/pkg/util/typeutil"
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)
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// INVERTEDChecker checks if a INVERTED index can be built.
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type INVERTEDChecker struct {
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scalarIndexChecker
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}
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func (c *INVERTEDChecker) CheckTrain(dataType schemapb.DataType, params map[string]string) error {
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// check json index params
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isJSONIndex := typeutil.IsJSONType(dataType)
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if isJSONIndex {
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if _, exist := params[common.JSONCastTypeKey]; !exist {
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return merr.WrapErrParameterMissing(common.JSONCastTypeKey, "json index must specify cast type")
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}
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if _, exist := params[common.JSONPathKey]; !exist {
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return merr.WrapErrParameterMissing(common.JSONPathKey, "json index must specify json path")
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}
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}
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return c.scalarIndexChecker.CheckTrain(dataType, params)
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}
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func (c *INVERTEDChecker) CheckValidDataType(indexType IndexType, field *schemapb.FieldSchema) error {
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dType := field.GetDataType()
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if !typeutil.IsBoolType(dType) && !typeutil.IsArithmetic(dType) && !typeutil.IsStringType(dType) &&
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!typeutil.IsArrayType(dType) && !typeutil.IsJSONType(dType) {
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return fmt.Errorf("INVERTED are not supported on %s field", dType.String())
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}
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return nil
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}
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func newINVERTEDChecker() *INVERTEDChecker {
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return &INVERTEDChecker{}
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}
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