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https://dev.mysql.com/doc/refman/8.0/en/data-type-defaults.html
The BLOB, TEXT, GEOMETRY, and JSON data types cannot be assigned a default value. Data type specifications can have explicit or implicit default values. A DEFAULT value clause in a data type specification explicitly indicates a default value for a ...
https://dev.mysql.com/doc/refman/8.0/en/error-log-destination-configuration.html
This is true even for sinks such as log_sink_json that can be enabled multiple times; all instances write to the console. log_sink_json: Successive instances of this sink named in the log_error_services value write to files named file_name plus a ...
https://dev.mysql.com/doc/refman/8.0/en/generated-column-index-optimizations.html
BETWEEN and IN() are not yet supported for comparisons involving JSON values. For comparisons of strings to indexed generated columns that compute a value from a JSON function that returns a quoted string, JSON_UNQUOTE() is needed in the column ...
https://dev.mysql.com/doc/refman/8.0/en/ibd2sdi.html
ibd2sdi outputs SDI (containing id, type, and data fields) in JSON format. ibd2sdi --no-check ../data/test/t1.ibd --pretty, -p Command-Line Format --pretty Type Boolean Default Value false Outputs SDI data in JSON pretty print format. ibd2sdi is a ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-indexes-create.html
For example, the following query performs better with an index on the Population field: mysql-js> db.countryinfo.find("demographics.Population < 100") ...[output removed] 8 documents in set (0.00 sec) The createIndex() method creates an index that ... Indexes are used to find documents with specific field values ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-documents-index.html
For example, the following query performs better with an index on the Population field: mysql-py> db.countryinfo.find("demographics.Population < 100") ...[output removed] 8 documents in set (0.00 sec) The create_index() method creates an index that ... Indexes are used to find documents with specific field values ...
https://dev.mysql.com/doc/refman/8.0/en/non-typed-operators.html
->> Return value from JSON column after evaluating path and unquoting the result; equivalent to JSON_UNQUOTE(JSON_EXTRACT()). / Division operator := Assign a value = Assign a value (as part of a SET statement, or as part of the SET clause in an ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-log-status-table.html
LOCAL The log position state information from the source, provided as a single JSON object with the following keys: binary_log_file The name of the current binary log file. REPLICATION A JSON array of channels, each with the following information: ... The log_status table provides information that enables an online backup tool to copy the required log files without locking those resources for the duration of the copy ...
https://dev.mysql.com/doc/refman/8.0/en/sys-ps-thread-trx-info.html
Returns a JSON object containing information about a given thread. The information includes the current transaction, and the statements it has already executed, derived from the Performance Schema events_transactions_current and ...
https://dev.mysql.com/doc/refman/8.0/en/audit-api-message-emit.html
For example, the audit_log plugin (see Section 8.4.5, “MySQL Enterprise Audit”) logs message values as follows, depending on the log format configured by the audit_log_format system variable: JSON format (audit_log_format=JSON): { ... As of ...