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https://dev.mysql.com/doc/internals/en/table-map-event.html
It is sent as length encoded string where the length of the string is the number of columns and each byte of it is the Protocol::ColumnType of the column. The first event used in Row Based Replication declares how a table that is about to be ...
https://dev.mysql.com/doc/ndbapi/en/ndbapi-examples-array-adapter.html
This program inserts CHAR, VARCHAR, and BINARY column data into a table by constructing aRef objects using array adapters of the type defined in common/array_adapter.hpp (see Section 2.5.15, “Common Files for NDB API Array Examples”). It then ...(Bug #70550, Bug #17592990) #include <NdbApi.hpp> #include <iostream> #include <vector> #include <cstdlib> #include <cstring> using namespace std; /* See Section 2.5.15, “Common Files for NDB API Array Examples”, for listings of these ...
https://dev.mysql.com/doc/refman/8.4/en/json-utility-functions.html
JSON_STORAGE_SIZE() and JSON_STORAGE_FREE() show, respectively, the amount of storage space used by a given JSON value and the amount of space remaining in a JSON column following a partial update. It returns a positive, nonzero value if the ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-memory-summary-tables.html
row *************************** EVENT_NAME: memory/sql/TABLE COUNT_ALLOC: 1381 COUNT_FREE: 924 SUM_NUMBER_OF_BYTES_ALLOC: 2059873 SUM_NUMBER_OF_BYTES_FREE: 1407432 LOW_COUNT_USED: 0 CURRENT_COUNT_USED: 457 HIGH_COUNT_USED: 461 ...Operation counts ...
https://dev.mysql.com/doc/internals/en/decoding-specification.html
Alignment: x bits alignment to the next byte border Code Trees. For every record: 1-5 bytes length of the compressed record in bytes 1.
https://dev.mysql.com/doc/ndbapi/en/mccj-clusterj-annotation-partitionkey.html
If annotating a class or interface, either a single column or multiple columns can be specified. If annotating a member, neither column nor columns should be specified. Annotation on a class or member to define the partition key.
https://dev.mysql.com/doc/ndbapi/en/ndb-examples-secondary-indexes-ndbrecord.html
* In this program, the same row offsets are used for columns * specified as part of a key, and as part of an attribute or * result. */ const NdbDictionary::Column *col1= myTable->getColumn("ATTR1"); if (col1 == NULL) APIERROR(myDict->getNdbError()); ... This program illustrates how to use secondary indexes in the NDB API with the aid of the NdbRecord ...
https://dev.mysql.com/doc/ndbapi/en/ndb-nodejs-api-tablemetadata.html
The indexes array of TableMetadata contains one IndexMetadata object per table index. NDB implements a primary key as both an ordered index and a unique index, and might be viewed through the NDB API adapter as two indexes, but through a MySQL ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-anomaly-detection-logs.html
The input table can only have the following columns: The column containing the logs. If including logs from different sources, a column containing the source of each log. The values in this column contain the names of the sources that each log ...
https://dev.mysql.com/doc/refman/8.4/en/bnl-bka-optimization.html
Suppose that join buffer B1 is employed to join tables t1 and t2 and the result of this operation is joined with table t3 using join buffer B2: A regular join buffer contains columns from each join operand. If B2 is a regular join buffer, each row r ... In MySQL, a Batched Key Access (BKA) Join algorithm is available that uses both index access to the joined table and a join ...