vitess.io/vitess@v0.16.2/go/vt/vtgate/planbuilder/primitive_builder.go (about) 1 /* 2 Copyright 2019 The Vitess Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package planbuilder 18 19 import ( 20 "vitess.io/vitess/go/vt/sqlparser" 21 "vitess.io/vitess/go/vt/vtgate/planbuilder/plancontext" 22 ) 23 24 // primitiveBuilder is the top level type for building plans. 25 // It contains the current logicalPlan tree, the symtab and 26 // the jointab. It can create transient planBuilders due 27 // to the recursive nature of SQL. 28 type primitiveBuilder struct { 29 vschema plancontext.VSchema 30 jt *jointab 31 plan logicalPlan 32 st *symtab 33 stmt sqlparser.Statement 34 } 35 36 func newStmtAwarePrimitiveBuilder(vschema plancontext.VSchema, jt *jointab, stmt sqlparser.Statement) *primitiveBuilder { 37 return &primitiveBuilder{ 38 vschema: vschema, 39 jt: jt, 40 stmt: stmt, 41 } 42 } 43 44 func newPrimitiveBuilder(vschema plancontext.VSchema, jt *jointab) *primitiveBuilder { 45 return &primitiveBuilder{ 46 vschema: vschema, 47 jt: jt, 48 } 49 }