Re: Bug? JSON functions do not work in nested JSON arrays
Posted by: Anthony Stump
Date: January 16, 2017 02:13PM

So I found the root cause of my problems.

I was adding unneeded complexity to my JSON array from generation.

I was storing in a [{"key":{"subkey":"val","subkey":"val"}}, {"key":{"subkey":"val","subkey":"val"}}]

I was having to find the data in MySQL using json_extract(field, '$**.key') - which was taking roughly 30 seconds to scan the data on 1 single row.

I took the [ ] master array out, now I have the data in a {"key":{"subkey":"val","subkey":"val"}}, {"key":{"subkey":"val","subkey":"val"}} array structure - I can access the data using '$.key' instead of '$**.key' - and it's instant.

Guessing this is a bug or something really wacked up in the way MySQL searches for a key - but this fixed it.

Submitting this as a bug report

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Re: Bug? JSON functions do not work in nested JSON arrays
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January 16, 2017 02:13PM


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