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MySQL 8.0 Reference Manual
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12.16.11 Spatial GeoJSON Functions
https://dev.mysql.com/spatial-geojson-functions.html
max_dec_digits, if specified, limits the number of decimal digits for coordinates and causes rounding of output. This section describes functions for converting between GeoJSON documents and spatial values. Feature and FeatureCollection objects are ...
15.6.2.4 InnoDB FULLTEXT Indexes
https://dev.mysql.com/innodb-fulltext-index.html
For example, in the auxiliary table name test/fts_0000000000000147_00000000000001c9_index_1, the hex value 1c9 has a decimal value of 457. FULLTEXT indexes are created on text-based columns (CHAR, VARCHAR, or TEXT columns) to help speed up queries ...
B.4.4.7 Solving Problems with No Matching Rows
https://dev.mysql.com/no-matching-rows.html
If you are comparing FLOAT or DOUBLE columns with numbers that have decimals, you cannot use equality (=) comparisons. If you have a complicated query that uses many tables but that returns no rows, you should use the following procedure to find ...
B.4.7 Known Issues in MySQL
https://dev.mysql.com/known-issues.html
When inserting a big integer value (between 263 and 264−1) into a decimal or string column, it is inserted as a negative value because the number is evaluated in a signed integer context. This section lists known issues in recent versions of ...

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