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converted most dynamic SQL queries into prepared statement to avoid excessive statement caching

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zadam
2020-06-20 23:24:34 +02:00
parent 969f31dde2
commit 5f699cc28c
6 changed files with 13 additions and 20 deletions
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5
src/services/sql.js
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@@ -127,7 +127,8 @@ function getManyRows(query, params) {
const questionMarks = curParams.map(() => ":param" + i++).join(",");
const curQuery = query.replace(/\?\?\?/g, questionMarks);
results = results.concat(getRows(curQuery, curParamsObj));
const subResults = dbConnection.prepare(curQuery).all(curParamsObj);
results = results.concat(subResults);
}
return results;
@@ -200,7 +201,7 @@ function wrap(query, func) {
const milliseconds = Date.now() - startTimestamp;
if (milliseconds >= 100) {
if (milliseconds >= 20) {
if (query.includes("WITH RECURSIVE")) {
log.info(`Slow recursive query took ${milliseconds}ms.`);
}