Allow adding and altering vector indexes in GMS.

Author: nicktobey

sql/planbuilder/ddl.go

@@ -681,7 +681,6 @@ func (b *Builder) buildIndexDefs(_ *scope, spec *ast.TableSpec) (idxDefs sql.Ind
 		} else if idxDef.Info.Vector {
 			// TODO: different kinds of vector HNSW, IVFFLAT, etc...
 			constraint = sql.IndexConstraint_Vector
-			b.handleErr(sql.ErrUnsupportedFeature.New("vector index"))
 		}
 
 		columns := b.gatherIndexColumns(idxDef.Columns)
@@ -818,7 +817,6 @@ func (b *Builder) buildAlterIndex(inScope *scope, ddl *ast.DDL, table *plan.Reso
 			constraint = sql.IndexConstraint_Spatial
 		case ast.VectorStr:
 			constraint = sql.IndexConstraint_Vector
-			b.handleErr(sql.ErrUnsupportedFeature.New("vector index"))
 		case ast.PrimaryStr:
 			constraint = sql.IndexConstraint_Primary
 		default: