github.com/cockroachdb/cockroachdb-parser@v0.23.3-0.20240213214944-911057d40c9a/pkg/sql/sem/semenumpb/constraint.proto (about)

     1  // Copyright 2022 The Cockroach Authors.
     2  //
     3  // Use of this software is governed by the Business Source License
     4  // included in the file licenses/BSL.txt.
     5  //
     6  // As of the Change Date specified in that file, in accordance with
     7  // the Business Source License, use of this software will be governed
     8  // by the Apache License, Version 2.0, included in the file
     9  // licenses/APL.txt.
    10  
    11  // This file should contain only EMUN definitions for concepts that
    12  // are visible in the SQL layer (i.e. concepts that can be configured
    13  // in a SQL query).
    14  // It uses proto3 so other packages can import those enum definitions
    15  // when needed.
    16  syntax = "proto3";
    17  package cockroach.sql.sem.semenumpb;
    18  option go_package = "github.com/cockroachdb/cockroach/pkg/sql/sem/semenumpb";
    19  
    20  import "gogoproto/gogo.proto";
    21  
    22  // ForeignKeyAction describes the action which should be taken when a foreign
    23  // key constraint reference is acted upon.
    24  enum ForeignKeyAction {
    25    NO_ACTION = 0;
    26    RESTRICT = 1;
    27    SET_NULL = 2;
    28    SET_DEFAULT = 3;
    29    CASCADE = 4;
    30  }
    31  
    32  // Match is the algorithm used to compare composite keys.
    33  enum Match {
    34    SIMPLE = 0;
    35    FULL = 1;
    36    PARTIAL = 2; // Note: not actually supported, but we reserve the value for future use.
    37  }