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https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlconnection-get-warnings.html
This property can be assigned a value of True or False to enable or disable whether warnings should be fetched automatically. The property can be invoked to retrieve the current warnings setting. >>> cnx.get_warnings = True >>> ...
https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlconnection-raise-on-warnings.html
This property can be assigned a value of True or False to enable or disable whether warnings should raise exceptions. The property can be invoked to retrieve the current exceptions setting. Setting raise_on_warnings also sets get_warnings because ...
https://dev.mysql.com/doc/connector-python/en/connector-python-api-mysqlconnection-use-unicode.html
This property sets and returns whether the connection uses Unicode with the value True or False. # gets whether the connector returns string fields as unicode or not print(cnx.use_unicode) >> True # set or update use_unicode property ...
https://dev.mysql.com/doc/internals/en/optimizer-eliminating-dead-code.html
A transformation takes place for conditions that are always true, for example: WHERE 0=0 AND column1='y' In this case, the first condition is removed, leaving WHERE column1='y' See: /sql/sql_select.cc, remove_eq_conds(). A transformation also takes ...
https://dev.mysql.com/doc/internals/en/tracing-example.html
The statement's execution is naturally made of "steps": "steps": [ { "join_preparation": { This is a join's preparation "select#": 1, for the first SELECT of the statement (which has only one, here). "rest_of_plan": [ { "database": "test", "table": ...
https://dev.mysql.com/doc/internals/en/transformation-scalar-in.html
To rewrite a scalar IN subquery, the Item_in_subselect::single_value_transformer method is used. The scalar IN subquery will be replaced with an Item_in_optimizer item. On a value request (one of val, val_int, or val_str methods) it evaluates the ...
https://dev.mysql.com/doc/ndbapi/en/ndb-examples-basic-delete.html
This example shows deleting a row from a table already created and populated previously (see Section 2.5.1.2, “NDB API Basic Insertion Example”). It performs the deletion using a single NdbOperation within a transaction, and handles errors ...
https://dev.mysql.com/doc/ndbapi/en/ndb-examples-basic-insert.html
You can also find the source code for this example in the file storage/ndb/ndbapi-examples/ndbapi_basic/ndbapi_basic_insert.cpp.
https://dev.mysql.com/doc/x-devapi-userguide/en/collection-indexing.html
To make large collections of documents more efficient to navigate you can create an index based on one or more fields found in the documents in the collection. Creating an Index Collection indexes are ordinary MySQL indexes on virtual columns that ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-js/en/collection-indexing.html
To make large collections of documents more efficient to navigate you can create an index based on one or more fields found in the documents in the collection. Creating an Index Collection indexes are ordinary MySQL indexes on virtual columns that ...