Blog: Dev MySQL Blog |
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209 blogs
updated: 35 min. ago
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1. Watch the parentheses. It's: ST_GeomFromText('POLYGON( (outerRing), (innerRing), (innerRing), ...)') The inner rings are optional. If you...
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How can you tell if a given workload on the master could be replicated with many parallel workers on the slave? The slave_parallel_type=LOGI...
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This post was originally published on the MySQL Support Team Blog at on 14 April 2017. Consider the scenario that you execute a query. You e...
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This post was originally published on the MySQL Support Team Blog at on 5 August 2016. I worked on an issue recently where a query was too s...
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Consider the scenario that you execute a query. You expect it to be fast - typically subsecond - but now it take not return until after 50 s...
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BIT values cannot be loaded using binary notation (for example, b'011010'). $ cat test.txt b'101010' 0b111000 ----- CREATE TABLE loadTest (b...
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Somebody asked on Freenode. I don't know why they wanted it. How would you drop all MySQL users who do not have "GRANT ALL ON *.* ... WITH G...
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MySQL Support was represented at Oracle OpenWorld 2016 with two engineers: Ligaya Turmelle and Jesper Krogh. We did a total of four talks an...
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A customer showed that a particular client reported a less-than-helpful error message when it tried to display some meta-data about a table....
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There is not yet an equivalent to GROUP_CONCAT that produces a JSON array. Until there is one, you can hack it together with string function...
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