Optimize multi-index and FTS index insert/update on SQL Providers#64
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deregtd
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Sep 28, 2018
We can do the insert and deletes of multi-key indexes in one pass instead of executing multiple queries
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ms-markda
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Sep 28, 2018
| // data contains all the input parameters | ||
| for (let i = 0; i < (data.length / insertParamCount); i += itemPageSize) { | ||
| const thisPageCount = Math.min(itemPageSize, (data.length / insertParamCount)) - i; | ||
| const qmarksValues = _.fill(new Array(thisPageCount), generateParamPlaceholder(insertParamCount)); |
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Suggestion: The same _.repeat idea could be used here instead of _.fill, Array, and .join.
_.repeat('(' + generateParamPlaceholder(insertParamCount) + '),', thisPageCount).slice(0, -1);Perhaps this could be extracted:
repeatWithSeparator(str: string, n: number, sep: string) {
return _.repeat(str + sep, n).slice(0, -sep.length);
}
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We can do the insert and deletes of multi-key indexes in one pass instead of executing multiple queries