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treat bigint as string in msnodesqlv8 driver #1387

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treat bigint as string in msnodesqlv8 driver #1387

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dhensby
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@dhensby dhensby commented Apr 19, 2022

What this does:

BigInts should be treated as strings to ensure no precision loss

Related issues:

Attempt to fix #1385

Pre/Post merge checklist:

  • Update change log

@dhensby dhensby force-pushed the pulls/bigint-msnodesql branch 2 times, most recently from 1fb3a94 to 9f21a3e Compare April 19, 2022 14:53
This was referenced Apr 19, 2022
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dhensby commented Apr 19, 2022

Well, interestingly, the tedious driver does not allow strings to be used for bigints and instead they must be set to varchars...

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Would there be an argument for using JS's BitInt type instead of a string? https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt

mssql doesn't support Node versions < 10 according to changelog, and it's been around since 10.4

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dhensby commented Apr 21, 2022 •
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Yep, definitely, but it's more about the underlying drivers than about this library. If they support either strings and/or BigInt, then we can use them.

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Ah that makes sense

@dhensby dhensby force-pushed the pulls/bigint-msnodesql branch 3 times, most recently from a7527cd to 5c27016 Compare April 28, 2022 21:07
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dhensby commented Sep 4, 2023

Well, interestingly, the tedious driver does not allow strings to be used for bigints and instead they must be set to varchars...

So this is the problem we have getting this merged, the tedious driver is the blocker

@dhensby
fix: treat bigint as string in msnodesqlv8 driver
a8723fb 
BigInt types will lose precision if they are above the MAX_SAFE_INTEGER
value. A work around for this is to use strings to represent the numbers
instead.
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dhensby commented Jun 18, 2024

So tedious introduced using native bigints for the bigint type in v18.2.0, which will be added in the next major release of this lib (imminent)

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BigInt incorrectly cast to int with msnodesqlv8
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