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https://dev.mysql.com/doc/heatwave/en/mys-hw-limitations-data-types.html
The following string and text data types are unsupported: BINARY VARBINARY Decimal values with a precision greater than 18 in expression operators are unsupported, with the exception of the following: Arithmetic operators, see: Section 5.3.2, ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-8-0-25.html
For example, the following query can now be offloaded to MySQL HeatWave for execution: SELECT DISTINCT a FROM t1 ORDER BY c DESC; (Bug #32583856) Query plan statistics are now collected and stored in a statistics cache when a query is executed in ...
https://dev.mysql.com/doc/connector-j/en/connector-j-query-attributes.html
Connector/J supports Query Attributes when it has been enabled on the server by installing the query_attributes component (see Prerequisites for Using Query Attributes for details). Attributes are set for a query by using the setAttribute() method ...
https://dev.mysql.com/doc/refman/8.4/en/charset-compatibility.html
For MaxDB compatibility these two statements are the same: CREATE TABLE t1 (f1 CHAR(N) UNICODE); CREATE TABLE t1 (f1 CHAR(N) CHARACTER SET ucs2); Both the UNICODE attribute and the ucs2 character set are deprecated; you should expect them to be ...
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-utf32.html
The utf32 character set is fixed length (like ucs2 and unlike utf16). utf32 uses 32 bits for every character, unlike ucs2 (which uses 16 bits for every character), and unlike utf16 (which uses 16 bits for some characters and 32 bits for others).
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-utf8mb3.html
The utf8mb3 character set has these characteristics: Supports BMP characters only (no support for supplementary characters) Requires a maximum of three bytes per multibyte character. Applications that use UTF-8 data but require supplementary ...
https://dev.mysql.com/doc/refman/8.4/en/column-indexes.html
The most common type of index involves a single column, storing copies of the values from that column in a data structure, allowing fast lookups for the rows with the corresponding column values. The B-tree data structure lets the index quickly ...
https://dev.mysql.com/doc/refman/8.4/en/creating-tables.html
You want a table that contains a record for each of your pets. This can be called the pet table, and it should contain, as a bare minimum, each animal's name. Because the name by itself is not very interesting, the table should contain other ...
https://dev.mysql.com/doc/refman/8.4/en/data-size.html
Design your tables to minimize their space on the disk. This can result in huge improvements by reducing the amount of data written to and read from disk. Smaller tables normally require less main memory while their contents are being actively ...
https://dev.mysql.com/doc/refman/8.4/en/example-auto-increment.html
You can also explicitly assign 0 to the column to generate sequence numbers, unless the NO_AUTO_VALUE_ON_ZERO SQL mode is enabled. For example: INSERT INTO animals (id,name) VALUES(0,'groundhog'); If the column is declared NOT NULL, it is also ...