sql/ydb: fixed introspection of index uniqueness

Author: LostImagin4tion

go.mod

@@ -42,3 +42,5 @@ require (
 	google.golang.org/grpc v1.78.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 )
+
+replace github.com/ydb-platform/ydb-go-sdk/v3 => github.com/LostImagin4tion/ydb-go-sdk/v3 v3.0.1-lostimagin4tion

go.sum

@@ -3,6 +3,8 @@ cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
 github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
+github.com/LostImagin4tion/ydb-go-sdk/v3 v3.0.1-lostimagin4tion h1:vGGqY93e5JImp1Wnt7+8brPDvir/u1m/3NqacWeJYVQ=
+github.com/LostImagin4tion/ydb-go-sdk/v3 v3.0.1-lostimagin4tion/go.mod h1:stS1mQYjbJvwwYaYzKyFY9eMiuVXWWXQA6T+SpOLg9c=
 github.com/agext/levenshtein v1.2.1 h1:QmvMAjj2aEICytGiWzmxoE0x2KZvE0fvmqMOfy2tjT8=
 github.com/agext/levenshtein v1.2.1/go.mod h1:JEDfjyjHDjOF/1e4FlBE/PkbqA9OfWu2ki2W0IB5558=
 github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
@@ -107,8 +109,6 @@ github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/ydb-platform/ydb-go-genproto v0.0.0-20251222105147-0bf751469a4a h1:nRqONRrMFulP2bTWM2RRnPM1VDhWuBZg4ULXkG4xXdk=
 github.com/ydb-platform/ydb-go-genproto v0.0.0-20251222105147-0bf751469a4a/go.mod h1:Er+FePu1dNUieD+XTMDduGpQuCPssK5Q4BjF+IIXJ3I=
-github.com/ydb-platform/ydb-go-sdk/v3 v3.125.0 h1:KPnGV2diuX1A4/1zXLO1UWHJokWC8yICzEfjdkSUWKo=
-github.com/ydb-platform/ydb-go-sdk/v3 v3.125.0/go.mod h1:/LjMxb/rXmoGAAnImoqAFIlhO5ampHacbvDetQitCk4=
 github.com/zclconf/go-cty v1.14.4 h1:uXXczd9QDGsgu0i/QFR/hzI5NYCHLf6NQw/atrbnhq8=
 github.com/zclconf/go-cty v1.14.4/go.mod h1:VvMs5i0vgZdhYawQNq5kePSpLAoz8u1xvZgrPIxfnZE=
 github.com/zclconf/go-cty-yaml v1.1.0 h1:nP+jp0qPHv2IhUVqmQSzjvqAWcObN0KBkUl2rWBdig0=

sql/ydb/inspect.go

@@ -293,8 +293,9 @@ func (i *inspect) indexes(
 	// secondary indexes
 	for _, idx := range tableDesc.Indexes {
 		atlasIdx := &schema.Index{
-			Name:  idx.Name,
-			Table: table,
+			Name:   idx.Name,
+			Table:  table,
+			Unique: idx.Type == options.GlobalUniqueIndex(),
 		}
 
 		for _, columnName := range idx.IndexColumns {
@@ -311,16 +312,16 @@ func (i *inspect) indexes(
 		indexAttrs := &IndexAttributes{
 			Async: idx.Type == options.GlobalAsyncIndex(),
 		}
+
 		for _, dataCol := range idx.DataColumns {
 			column, ok := table.Column(dataCol)
 			if !ok {
 				return fmt.Errorf("ydb: cover column %q not found in table %q", dataCol, table.Name)
 			}
 			indexAttrs.CoverColumns = append(indexAttrs.CoverColumns, column)
 		}
-		if indexAttrs.Async || len(indexAttrs.CoverColumns) > 0 {
-			atlasIdx.Attrs = append(atlasIdx.Attrs, indexAttrs)
-		}
+
+		atlasIdx.Attrs = append(atlasIdx.Attrs, indexAttrs)
 
 		table.AddIndexes(atlasIdx)
 	}