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analyse mysql views optimalization #273

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This commit is contained in:
Jan Prochazka 2022-06-02 12:02:54 +02:00
parent 0209780f1c
commit ee7198a913
3 changed files with 23 additions and 8 deletions
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22
plugins/dbgate-plugin-mysql/src/backend/Analyser.js
View File

@ -56,15 +56,21 @@ class Analyser extends DatabaseAnalyser {
async getViewTexts(allViewNames) {
const res = {};
for (const viewName of this.getRequestedViewNames(allViewNames)) {
try {
const resp = await this.driver.query(this.pool, `SHOW CREATE VIEW \`${viewName}\``);
res[viewName] = resp.rows[0]['Create View'];
} catch (err) {
console.log('ERROR', err);
res[viewName] = `${err}`;
}
const views = await this.safeQuery(this.createQuery('viewTexts', ['views']));
for (const view of views.rows) {
res[view.pureName] = `CREATE VIEW \`${view.pureName}\` AS ${view.viewDefinition}`;
}
// for (const viewName of this.getRequestedViewNames(allViewNames)) {
// try {
// const resp = await this.driver.query(this.pool, `SHOW CREATE VIEW \`${viewName}\``);
// res[viewName] = resp.rows[0]['Create View'];
// } catch (err) {
// console.log('ERROR', err);
// res[viewName] = `${err}`;
// }
// }
return res;
}

2
plugins/dbgate-plugin-mysql/src/backend/sql/index.js
View File

@ -9,6 +9,7 @@ const programmables = require('./programmables');
const procedureModifications = require('./procedureModifications');
const functionModifications = require('./functionModifications');
const uniqueNames = require('./uniqueNames');
const viewTexts = require('./viewTexts');
module.exports = {
columns,
@ -22,4 +23,5 @@ module.exports = {
functionModifications,
indexes,
uniqueNames,
viewTexts,
};

7
plugins/dbgate-plugin-mysql/src/backend/sql/viewTexts.js Normal file
View File

@ -0,0 +1,7 @@
module.exports = `
select
TABLE_NAME as pureName,
VIEW_DEFINITION as viewDefinition
from information_schema.views
where TABLE_SCHEMA = '#DATABASE#' and TABLE_NAME =OBJECT_ID_CONDITION;
`;