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Fix #6424 mysql migration: make sure the indices sql which left-join … #6426

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Jul 26, 2020
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Fix #6424 mysql migration: make sure the indices sql which left-join … #6426

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2 changes: 1 addition & 1 deletion src/driver/mysql/MysqlQueryRunner.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1218,7 +1218,7 @@ export class MysqlQueryRunner extends BaseQueryRunner implements QueryRunner {
return `(\`s\`.\`TABLE_SCHEMA\` = '${database}' AND \`s\`.\`TABLE_NAME\` = '${name}')`;
}).join(" OR ");
const indicesSql = `SELECT \`s\`.* FROM \`INFORMATION_SCHEMA\`.\`STATISTICS\` \`s\` ` +
`LEFT JOIN \`INFORMATION_SCHEMA\`.\`REFERENTIAL_CONSTRAINTS\` \`rc\` ON \`s\`.\`INDEX_NAME\` = \`rc\`.\`CONSTRAINT_NAME\` ` +
`LEFT JOIN \`INFORMATION_SCHEMA\`.\`REFERENTIAL_CONSTRAINTS\` \`rc\` ON \`s\`.\`INDEX_NAME\` = \`rc\`.\`CONSTRAINT_NAME\` AND \`s\`.\`TABLE_SCHEMA\` = \`rc\`.\`CONSTRAINT_SCHEMA\`` +
`WHERE (${indicesCondition}) AND \`s\`.\`INDEX_NAME\` != 'PRIMARY' AND \`rc\`.\`CONSTRAINT_NAME\` IS NULL`;

const foreignKeysCondition = tableNames.map(tableName => {
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