75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
'use strict';
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class AbstractDialect {}
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AbstractDialect.prototype.supports = {
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'DEFAULT': true,
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'DEFAULT VALUES': false,
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'VALUES ()': false,
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'LIMIT ON UPDATE': false,
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'ON DUPLICATE KEY': true,
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'ORDER NULLS': false,
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'UNION': true,
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'UNION ALL': true,
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'RIGHT JOIN': true,
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/* does the dialect support returning values for inserted/updated fields */
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returnValues: false,
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/* features specific to autoIncrement values */
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autoIncrement: {
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/* does the dialect require modification of insert queries when inserting auto increment fields */
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identityInsert: false,
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/* does the dialect support inserting default/null values for autoincrement fields */
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defaultValue: true,
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/* does the dialect support updating autoincrement fields */
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update: true
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},
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/* Do we need to say DEFAULT for bulk insert */
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bulkDefault: false,
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schemas: false,
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transactions: true,
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settingIsolationLevelDuringTransaction: true,
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transactionOptions: {
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type: false
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},
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migrations: true,
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upserts: true,
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inserts: {
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ignoreDuplicates: '', /* dialect specific words for INSERT IGNORE or DO NOTHING */
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updateOnDuplicate: false, /* whether dialect supports ON DUPLICATE KEY UPDATE */
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onConflictDoNothing: '', /* dialect specific words for ON CONFLICT DO NOTHING */
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conflictFields: false /* whether the dialect supports specifying conflict fields or not */
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},
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constraints: {
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restrict: true,
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addConstraint: true,
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dropConstraint: true,
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unique: true,
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default: false,
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check: true,
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foreignKey: true,
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primaryKey: true
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},
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index: {
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collate: true,
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length: false,
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parser: false,
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concurrently: false,
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type: false,
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using: true,
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functionBased: false,
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operator: false
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},
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groupedLimit: true,
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indexViaAlter: false,
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JSON: false,
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deferrableConstraints: false
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};
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module.exports = AbstractDialect;
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module.exports.AbstractDialect = AbstractDialect;
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module.exports.default = AbstractDialect;
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