Database abstraction object for MySQL. More...

Inheritance diagram for Wikimedia\Rdbms\DatabaseMysqlBase:

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Collaboration diagram for Wikimedia\Rdbms\DatabaseMysqlBase:

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Public Member Functions
	__construct (array $params)
	Additional $params include:

	addIdentifierQuotes ( $s)
	MySQL uses `backticks` for identifier quoting instead of the sql standard "double quotes".

	addQuotes ( $s)
	Escape and quote a raw value string for use in a SQL query.

	buildIntegerCast ( $field)

	buildStringCast ( $field)

	dataSeek ( $res, $row)

	deleteJoin ( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname=__METHOD__)
	DELETE where the condition is a join.

	dropTable ( $tableName, $fName=__METHOD__)

	duplicateTableStructure ( $oldName, $newName, $temporary=false, $fname=__METHOD__)

	estimateRowCount ( $table, $var=' *', $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Estimate rows in dataset Returns estimated count, based on EXPLAIN output Takes same arguments as Database::select()

	fetchObject ( $res)

	fetchRow ( $res)

	fieldInfo ( $table, $field)

	fieldName ( $res, $n)

	fieldType ( $res, $n)
	mysql_field_type() wrapper

	freeResult ( $res)

	getMasterPos ()
	Get the position of the master from SHOW MASTER STATUS.

	getReplicaPos ()
	Get the position of the master from SHOW SLAVE STATUS.

	getServerUptime ()
	Determines how long the server has been up.

	getServerVersion ()

	getSoftwareLink ()

	getType ()

	ignoreIndexClause ( $index)

	indexInfo ( $table, $index, $fname=__METHOD__)
	Get information about an index into an object Returns false if the index does not exist.

	isQuotedIdentifier ( $name)

	isView ( $name, $prefix=null)
	Differentiates between a TABLE and a VIEW.

	lastError ()

	listTables ( $prefix=null, $fname=__METHOD__)
	List all tables on the database.

	listViews ( $prefix=null, $fname=__METHOD__)
	Lists VIEWs in the database.

	lock ( $lockName, $method, $timeout=5)

	lockIsFree ( $lockName, $method)
	Check to see if a named lock is available.

	masterPosWait (DBMasterPos $pos, $timeout)
	Wait for the replica DB to catch up to a given master position.

	namedLocksEnqueue ()
	Check to see if a named lock used by lock() use blocking queues.

	numFields ( $res)

	numRows ( $res)

	replace ( $table, $uniqueIndexes, $rows, $fname=__METHOD__)
	REPLACE query wrapper.

	serverIsReadOnly ()

	setBigSelects ( $value=true)

	setSessionOptions (array $options)

	streamStatementEnd (&$sql, &$newLine)

	strencode ( $s)

	tableExists ( $table, $fname=__METHOD__)
	Query whether a given table exists.

	tableLocksHaveTransactionScope ()
	Checks if table locks acquired by lockTables() are transaction-bound in their scope.

	unlock ( $lockName, $method)
	FROM MYSQL DOCS: https://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#function_release-lock.

	upsert ( $table, array $rows, $uniqueIndexes, array $set, $fname=__METHOD__)
	INSERT ON DUPLICATE KEY UPDATE wrapper, upserts an array into a table.

	useIndexClause ( $index)

	wasConnectionError ( $errno)
	Do not use this method outside of Database/DBError classes.

	wasDeadlock ()
	Determines if the last failure was due to a deadlock.

	wasLockTimeout ()
	Determines if the last failure was due to a lock timeout.

	wasReadOnlyError ()
	Determines if the last failure was due to the database being read-only.

Public Member Functions inherited from Wikimedia\Rdbms\Database
	__clone ()
	Make sure that copies do not share the same client binding handle.

	__destruct ()
	Run a few simple sanity checks and close dangling connections.

	__sleep ()
	Called by serialize.

	__toString ()
	Get a debugging string that mentions the database type, the ID of this instance, and the ID of any underlying connection resource or driver object if one is present.

	affectedRows ()
	Get the number of rows affected by the last write query.

	aggregateValue ( $valuedata, $valuename='value')
	Return aggregated value alias.

	anyChar ()
	Returns a token for buildLike() that denotes a '_' to be used in a LIKE query.

	anyString ()
	Returns a token for buildLike() that denotes a '' to be used in a LIKE query.

	assertNoOpenTransactions ()
	Assert that all explicit transactions or atomic sections have been closed.

	begin ( $fname=__METHOD__, $mode=self::TRANSACTION_EXPLICIT)
	Begin a transaction.

	bitAnd ( $fieldLeft, $fieldRight)

	bitNot ( $field)

	bitOr ( $fieldLeft, $fieldRight)

	bufferResults ( $buffer=null)
	Backwards-compatibility no-op method for disabling query buffering.

	buildConcat ( $stringList)
	Build a concatenation list to feed into a SQL query.

	buildGroupConcatField ( $delim, $table, $field, $conds='', $join_conds=[])
	Build a GROUP_CONCAT or equivalent statement for a query.

	buildLike ( $param,... $params)

	buildSelectSubquery ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Equivalent to IDatabase::selectSQLText() except wraps the result in Subqyery.

	buildSubstring ( $input, $startPosition, $length=null)

	cancelAtomic ( $fname=__METHOD__, AtomicSectionIdentifier $sectionId=null)
	Cancel an atomic section of SQL statements.

	clearFlag ( $flag, $remember=self::REMEMBER_NOTHING)
	Clear a flag for this connection.

	close ( $fname=__METHOD__, $owner=null)
	Close the database connection.

	commit ( $fname=__METHOD__, $flush=self::FLUSHING_ONE)
	Commits a transaction previously started using begin()

	conditional ( $cond, $trueVal, $falseVal)
	Returns an SQL expression for a simple conditional.

	connectionErrorLogger ( $errno, $errstr)
	Error handler for logging errors during database connection This method should not be used outside of Database classes.

	databasesAreIndependent ()
	Returns true if DBs are assumed to be on potentially different servers.

	dbSchema ( $schema=null)
	Get/set the db schema.

	deadlockLoop ()
	Perform a deadlock-prone transaction.

	decodeBlob ( $b)
	Some DBMSs return a special placeholder object representing blob fields in result objects.

	decodeExpiry ( $expiry, $format=TS_MW)
	Decode an expiry time into a DBMS independent format.

	delete ( $table, $conds, $fname=__METHOD__)
	DELETE query wrapper.

	doAtomicSection ( $fname, callable $callback, $cancelable=self::ATOMIC_NOT_CANCELABLE)
	Perform an atomic section of reversable SQL statements from a callback.

	encodeBlob ( $b)
	Some DBMSs have a special format for inserting into blob fields, they don't allow simple quoted strings to be inserted.

	encodeExpiry ( $expiry)
	Encode an expiry time into the DBMS dependent format.

	endAtomic ( $fname=__METHOD__)
	Ends an atomic section of SQL statements.

	explicitTrxActive ()

	fieldExists ( $table, $field, $fname=__METHOD__)
	Determines whether a field exists in a table.

	flushSnapshot ( $fname=__METHOD__, $flush=self::FLUSHING_ONE)
	Commit any transaction but error out if writes or callbacks are pending.

	getDBname ()
	Get the current DB name.

	getDomainID ()
	Return the currently selected domain ID.

	getFlag ( $flag)
	Returns a boolean whether the flag $flag is set for this connection.

	getInfinity ()
	Find out when 'infinity' is.

	getLag ()
	Get the amount of replication lag for this database server.

	getLBInfo ( $name=null)
	Get properties passed down from the server info array of the load balancer.

	getScopedLockAndFlush ( $lockKey, $fname, $timeout)
	Acquire a named lock, flush any transaction, and return an RAII style unlocker object.

	getServer ()
	Get the server hostname or IP address.

	getServerInfo ()
	Get a human-readable string describing the current software version.

	getSessionLagStatus ()
	Get the replica DB lag when the current transaction started or a general lag estimate if not transaction is active.

	implicitOrderby ()
	Returns true if this database does an implicit order by when the column has an index For example: SELECT page_title FROM page LIMIT 1.

	indexExists ( $table, $index, $fname=__METHOD__)
	Determines whether an index exists.

	indexUnique ( $table, $index)
	Determines if a given index is unique.

	initConnection ()
	Initialize the connection to the database over the wire (or to local files)

	insert ( $table, $a, $fname=__METHOD__, $options=[])
	INSERT wrapper, inserts an array into a table.

	insertSelect ( $destTable, $srcTable, $varMap, $conds, $fname=__METHOD__, $insertOptions=[], $selectOptions=[], $selectJoinConds=[])
	INSERT SELECT wrapper.

	isOpen ()

	isReadOnly ()

	lastDoneWrites ()
	Get the last time the connection may have been used for a write query.

	lastQuery ()
	Get the last query that sent on account of IDatabase::query()

	limitResult ( $sql, $limit, $offset=false)
	Construct a LIMIT query with optional offset.

	lockForUpdate ( $table, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Lock all rows meeting the given conditions/options FOR UPDATE.

	lockTables (array $read, array $write, $method)
	Lock specific tables.

	makeList ( $a, $mode=self::LIST_COMMA)
	Makes an encoded list of strings from an array.

	makeWhereFrom2d ( $data, $baseKey, $subKey)
	Build a partial where clause from a 2-d array such as used for LinkBatch.

	maxListLen ()
	Return the maximum number of items allowed in a list, or 0 for unlimited.

	nextSequenceValue ( $seqName)
	Deprecated method, calls should be removed.

	onAtomicSectionCancel (callable $callback, $fname=__METHOD__)
	Run a callback when the atomic section is cancelled.

	onTransactionCommitOrIdle (callable $callback, $fname=__METHOD__)
	Run a callback as soon as there is no transaction pending.

	onTransactionIdle (callable $callback, $fname=__METHOD__)
	Alias for onTransactionCommitOrIdle() for backwards-compatibility.

	onTransactionPreCommitOrIdle (callable $callback, $fname=__METHOD__)
	Run a callback before the current transaction commits or now if there is none.

	onTransactionResolution (callable $callback, $fname=__METHOD__)
	Run a callback as soon as the current transaction commits or rolls back.

	pendingWriteAndCallbackCallers ()
	List the methods that have write queries or callbacks for the current transaction.

	pendingWriteCallers ()
	Get the list of method names that did write queries for this transaction.

	pendingWriteQueryDuration ( $type=self::ESTIMATE_TOTAL)
	Get the time spend running write queries for this transaction.

	pendingWriteRowsAffected ()
	Get the number of affected rows from pending write queries.

	ping (&$rtt=null)
	Ping the server and try to reconnect if it there is no connection.

	preCommitCallbacksPending ()

	query ( $sql, $fname=__METHOD__, $flags=0)
	Run an SQL query and return the result.

	reportQueryError ( $error, $errno, $sql, $fname, $ignore=false)
	Report a query error.

	restoreFlags ( $state=self::RESTORE_PRIOR)
	Restore the flags to their prior state before the last setFlag/clearFlag call.

	rollback ( $fname=__METHOD__, $flush=self::FLUSHING_ONE)
	Rollback a transaction previously started using begin()

	runOnTransactionIdleCallbacks ( $trigger)
	Actually consume and run any "on transaction idle/resolution" callbacks.

	runOnTransactionPreCommitCallbacks ()
	Actually consume and run any "on transaction pre-commit" callbacks.

	runTransactionListenerCallbacks ( $trigger)
	Actually run any "transaction listener" callbacks.

	select ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Execute a SELECT query constructed using the various parameters provided.

	selectDB ( $db)
	Change the current database.

	selectDomain ( $domain)
	Set the current domain (database, schema, and table prefix)

	selectField ( $table, $var, $cond='', $fname=__METHOD__, $options=[], $join_conds=[])
	A SELECT wrapper which returns a single field from a single result row.

	selectFieldValues ( $table, $var, $cond='', $fname=__METHOD__, $options=[], $join_conds=[])
	A SELECT wrapper which returns a list of single field values from result rows.

	selectRow ( $table, $vars, $conds, $fname=__METHOD__, $options=[], $join_conds=[])
	Wrapper to IDatabase::select() that only fetches one row (via LIMIT)

	selectRowCount ( $tables, $var=' *', $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Get the number of rows in dataset.

	selectSQLText ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Take the same arguments as IDatabase::select() and return the SQL it would use.

	setFlag ( $flag, $remember=self::REMEMBER_NOTHING)
	Set a flag for this connection.

	setIndexAliases (array $aliases)
	Convert certain index names to alternative names before querying the DB.

	setLazyMasterHandle (IDatabase $conn)
	Set a lazy-connecting DB handle to the master DB (for replication status purposes)

	setLBInfo ( $nameOrArray, $value=null)
	Set the entire array or a particular key of the managing load balancer info array.

	setLogger (LoggerInterface $logger)
	Set the PSR-3 logger interface to use for query logging.

	setSchemaVars ( $vars)
	Set variables to be used in sourceFile/sourceStream, in preference to the ones in $GLOBALS.

	setTableAliases (array $aliases)
	Make certain table names use their own database, schema, and table prefix when passed into SQL queries pre-escaped and without a qualified database name.

	setTransactionListener ( $name, callable $callback=null)
	Run a callback after each time any transaction commits or rolls back.

	setTrxEndCallbackSuppression ( $suppress)
	Whether to disable running of post-COMMIT/ROLLBACK callbacks.

	sourceFile ( $filename, callable $lineCallback=null, callable $resultCallback=null, $fname=false, callable $inputCallback=null)
	Read and execute SQL commands from a file.

	sourceStream ( $fp, callable $lineCallback=null, callable $resultCallback=null, $fname=__METHOD__, callable $inputCallback=null)
	Read and execute commands from an open file handle.

	startAtomic ( $fname=__METHOD__, $cancelable=self::ATOMIC_NOT_CANCELABLE)
	Begin an atomic section of SQL statements.

	strreplace ( $orig, $old, $new)
	Returns a SQL expression for simple string replacement (e.g.

	tableName ( $name, $format='quoted')
	Format a table name ready for use in constructing an SQL query.

	tableNames ()
	Fetch a number of table names into an array This is handy when you need to construct SQL for joins.

	tableNamesN ()
	Fetch a number of table names into an zero-indexed numerical array This is handy when you need to construct SQL for joins.

	tablePrefix ( $prefix=null)
	Get/set the table prefix.

	textFieldSize ( $table, $field)
	Returns the size of a text field, or -1 for "unlimited".

	timestamp ( $ts=0)
	Convert a timestamp in one of the formats accepted by ConvertibleTimestamp to the format used for inserting into timestamp fields in this DBMS.

	timestampOrNull ( $ts=null)
	Convert a timestamp in one of the formats accepted by ConvertibleTimestamp to the format used for inserting into timestamp fields in this DBMS.

	trxLevel ()
	Gets the current transaction level.

	trxStatus ()

	trxTimestamp ()
	Get the UNIX timestamp of the time that the transaction was established.

	unionConditionPermutations ( $table, $vars, array $permute_conds, $extra_conds='', $fname=__METHOD__, $options=[], $join_conds=[])
	Construct a UNION query for permutations of conditions.

	unionQueries ( $sqls, $all)
	Construct a UNION query.

	unionSupportsOrderAndLimit ()
	Determine if the RDBMS supports ORDER BY and LIMIT for separate subqueries within UNION.

	unlockTables ( $method)
	Unlock all tables locked via lockTables()

	update ( $table, $values, $conds, $fname=__METHOD__, $options=[])
	UPDATE wrapper.

	wasConnectionLoss ()
	Determines if the last query error was due to a dropped connection.

	wasErrorReissuable ()
	Determines if the last query error was due to something outside of the query itself.

	writesOrCallbacksPending ()
	Whether there is a transaction open with either possible write queries or unresolved pre-commit/commit/resolution callbacks pending.

	writesPending ()

Public Member Functions inherited from Wikimedia\Rdbms\IDatabase
	buildLike ( $param)
	LIKE statement wrapper.

	buildSubString ( $input, $startPosition, $length=null)
	Build a SUBSTRING function.

	insertId ()
	Get the inserted value of an auto-increment row.

	lastErrno ()
	Get the last error number.

Public Attributes
const	SERVER_ID_CACHE_TTL = 86400

Protected Member Functions
	doGetLag ()

	doLockTables (array $read, array $write, $method)
	Helper function for lockTables() that handles the actual table locking.

	doSelectDomain (DatabaseDomain $domain)

	doUnlockTables ( $method)
	Helper function for unlockTables() that handles the actual table unlocking.

	getApproximateLagStatus ()
	Get a replica DB lag estimate for this server.

	getHeartbeatData (array $conds)

	getLagDetectionMethod ()

	getLagFromPtHeartbeat ()

	getLagFromSlaveStatus ()

	getMasterServerInfo ()

	getReplicationSafetyInfo ()

	getServerGTIDs ( $fname=__METHOD__)

	getServerId ()

	getServerRoleStatus ( $role, $fname=__METHOD__)

	getServerUUID ()

	isInsertSelectSafe (array $insertOptions, array $selectOptions)

	isTransactableQuery ( $sql)
	Determine whether a SQL statement is sensitive to isolation level.

	mysqlConnect ( $realServer, $dbName)
	Open a connection to a MySQL server.

	mysqlDataSeek ( $res, $row)
	Move internal result pointer.

	mysqlError ( $conn=null)
	Returns the text of the error message from previous MySQL operation.

	mysqlFetchArray ( $res)
	Fetch a result row as an associative and numeric array.

	mysqlFetchField ( $res, $n)
	Get column information from a result.

	mysqlFetchObject ( $res)
	Fetch a result row as an object.

	mysqlFieldName ( $res, $n)
	Get the name of the specified field in a result.

	mysqlFieldType ( $res, $n)
	Get the type of the specified field in a result.

	mysqlFreeResult ( $res)
	Free result memory.

	mysqlNumFields ( $res)
	Get number of fields in result.

	mysqlNumRows ( $res)
	Get number of rows in result.

	mysqlRealEscapeString ( $s)

	open ( $server, $user, $password, $dbName, $schema, $tablePrefix)
	Open a new connection to the database (closing any existing one)

	useGTIDs ()

	wasKnownStatementRollbackError ()

	wasQueryTimeout ( $error, $errno)
	Checks whether the cause of the error is detected to be a timeout.

Protected Member Functions inherited from Wikimedia\Rdbms\Database
	assertBuildSubstringParams ( $startPosition, $length)
	Check type and bounds for parameters to self::buildSubstring()

	assertHasConnectionHandle ()
	Make sure there is an open connection handle (alive or not) as a sanity check.

	assertIsWritableMaster ()
	Make sure that this server is not marked as a replica nor read-only as a sanity check.

	closeConnection ()
	Closes underlying database connection.

	doBegin ( $fname)
	Issues the BEGIN command to the database server.

	doCommit ( $fname)
	Issues the COMMIT command to the database server.

	doHandleSessionLossPreconnect ()
	Reset any additional subclass trx* and session* fields.

	doInitConnection ()
	Actually connect to the database over the wire (or to local files)

	doQuery ( $sql)
	Run a query and return a DBMS-dependent wrapper or boolean.

	doReleaseSavepoint ( $identifier, $fname)
	Release a savepoint.

	doRollback ( $fname)
	Issues the ROLLBACK command to the database server.

	doRollbackToSavepoint ( $identifier, $fname)
	Rollback to a savepoint.

	doSavepoint ( $identifier, $fname)
	Create a savepoint.

	escapeLikeInternal ( $s, $escapeChar='`')

	executeQuery ( $sql, $fname, $flags)
	Execute a query, retrying it if there is a recoverable connection loss.

	extractSingleFieldFromList ( $var)

	fetchAffectedRowCount ()

	fieldHasBit ( $field, $flags)

	fieldNamesWithAlias ( $fields)
	Gets an array of aliased field names.

	fieldNameWithAlias ( $name, $alias=false)
	Get an aliased field name e.g.

	getBindingHandle ()
	Get the underlying binding connection handle.

	getDefaultSchemaVars ()
	Get schema variables to use if none have been set via setSchemaVars().

	getLastPHPError ()

	getLazyMasterHandle ()

	getLogContext (array $extras=[])
	Create a log context to pass to PSR-3 logger functions.

	getQueryVerb ( $sql)

	getReadOnlyReason ()

	getRecordedTransactionLagStatus ()
	Get the replica DB lag when the current transaction started.

	getSchemaVars ()
	Get schema variables.

	getTempWrites ( $sql, $pseudoPermanent)

	getTransactionRoundId ()

	indexName ( $index)
	Allows for index remapping in queries where this is not consistent across DBMS.

	installErrorHandler ()
	Set a custom error handler for logging errors during database connection.

	isWriteQuery ( $sql)
	Determine whether a query writes to the DB.

	makeGroupByWithHaving ( $options)
	Returns an optional GROUP BY with an optional HAVING.

	makeInsertOptions ( $options)
	Helper for Database::insert().

	makeOrderBy ( $options)
	Returns an optional ORDER BY.

	makeSelectOptions (array $options)
	Returns an optional USE INDEX clause to go after the table, and a string to go at the end of the query.

	makeUpdateOptions ( $options)
	Make UPDATE options for the Database::update function.

	makeUpdateOptionsArray ( $options)
	Make UPDATE options array for Database::makeUpdateOptions.

	nativeInsertSelect ( $destTable, $srcTable, $varMap, $conds, $fname=__METHOD__, $insertOptions=[], $selectOptions=[], $selectJoinConds=[])
	Native server-side implementation of insertSelect() for situations where we don't want to select everything into memory.

	nativeReplace ( $table, $rows, $fname)
	REPLACE query wrapper for MySQL and SQLite, which have a native REPLACE statement.

	newExceptionAfterConnectError ( $error)

	nonNativeInsertSelect ( $destTable, $srcTable, $varMap, $conds, $fname=__METHOD__, $insertOptions=[], $selectOptions=[], $selectJoinConds=[])
	Implementation of insertSelect() based on select() and insert()

	normalizeConditions ( $conds, $fname)

	qualifiedTableComponents ( $name)
	Get the table components needed for a query given the currently selected database.

	registerTempWrites ( $ret, $tmpType, $tmpNew, $tmpDel)

	relationSchemaQualifier ()

	replaceLostConnection ( $fname)
	Close any existing (dead) database connection and open a new connection.

	replaceVars ( $ins)
	Database independent variable replacement.

	restoreErrorHandler ()
	Restore the previous error handler and return the last PHP error for this DB.

	resultObject ( $result)
	Take a query result and wrap it in an iterable result wrapper if necessary.

	tableNamesWithAlias ( $tables)
	Gets an array of aliased table names.

	tableNamesWithIndexClauseOrJOIN ( $tables, $use_index=[], $ignore_index=[], $join_conds=[])
	Get the aliased table name clause for a FROM clause which might have a JOIN and/or USE INDEX or IGNORE INDEX clause.

	tableNameWithAlias ( $table, $alias=false)
	Get an aliased table name.

Protected Attributes
bool null	$defaultBigSelects = null

string	$lagDetectionMethod
	Method to detect replica DB lag.

array	$lagDetectionOptions = []
	Method to detect replica DB lag.

MysqlMasterPos	$lastKnownReplicaPos

string	$sqlMode
	sql_mode value to send on connection

string null	$sslCAFile

string null	$sslCAPath

string null	$sslCertPath

string[] null	$sslCiphers

string null	$sslKeyPath

bool	$useGTIDs = false
	bool Whether to use GTID methods

bool	$utf8Mode
	Use experimental UTF-8 transmission encoding.

Protected Attributes inherited from Wikimedia\Rdbms\Database
integer null	$affectedRowCount
	Rows affected by the last query to query() or its CRUD wrappers.

string	$agent
	Agent name for query profiling.

bool	$cliMode
	Whether this PHP instance is for a CLI script.

object resource null	$conn
	Database connection.

array	$connectionParams
	Parameters used by initConnection() to establish a connection.

string[] int[] float[]	$connectionVariables
	SQL variables values to use for all new connections.

LoggerInterface	$connLogger

DatabaseDomain	$currentDomain

string	$delimiter = ';'
	Current SQL query delimiter.

callable	$deprecationLogger
	Deprecation logging callback.

callable	$errorLogger
	Error logging callback.

int	$flags
	Current bit field of class DBO_* constants.

string[]	$indexAliases = []
	Current map of (index alias => index)

array	$lbInfo = []
	Current LoadBalancer tracking information.

int	$nonNativeInsertSelectBatchSize
	Row batch size to use for emulated INSERT SELECT queries.

string	$password
	Password used to establish the current connection.

callable null	$profiler

LoggerInterface	$queryLogger

array null	$schemaVars
	Current variables use for schema element placeholders.

string	$server
	Server that this instance is currently connected to.

array	$sessionNamedLocks = []
	Map of (name => 1) for locks obtained via lock()

array	$sessionTempTables = []
	Map of (table name => 1) for TEMPORARY tables.

BagOStuff	$srvCache
	APC cache.

array[]	$tableAliases = []
	Current map of (table => (dbname, schema, prefix) map)

TransactionProfiler	$trxProfiler

string	$user
	User that this instance is currently connected under the name of.

Private Member Functions
	getMysqlStatus ( $which="%")
	Get status information from SHOW STATUS in an associative array.

	makeLockName ( $lockName)

Private Attributes
bool null	$insertSelectIsSafe = null

stdClass null	$replicationInfoRow = null

Additional Inherited Members
Static Public Member Functions inherited from Wikimedia\Rdbms\Database
static	attributesFromType ( $dbType, $driver=null)

static	factory ( $type, $params=[], $connect=self::NEW_CONNECTED)
	Construct a Database subclass instance given a database type and parameters.

static	getCacheSetOptions (IDatabase $db1, IDatabase $db2=null)
	Merge the result of getSessionLagStatus() for several DBs using the most pessimistic values to estimate the lag of any data derived from them in combination.

Static Protected Member Functions inherited from Wikimedia\Rdbms\Database
static	getAttributes ()

Static Protected Attributes inherited from Wikimedia\Rdbms\Database
static int	$DBO_MUTABLE
	Bit field of all DBO_* flags that can be changed after connection.

static string[]	$MUTABLE_FLAGS
	List of DBO_* flags that can be changed after connection.

Detailed Description

Database abstraction object for MySQL.

Defines methods independent on used MySQL extension.

Since: 1.22

See also: Database

Definition at line 41 of file DatabaseMysqlBase.php.

Constructor & Destructor Documentation

◆ __construct()

Wikimedia\Rdbms\DatabaseMysqlBase::__construct ( array $params )

Additional $params include:

lagDetectionMethod : set to one of (Seconds_Behind_Master,pt-heartbeat). pt-heartbeat assumes the table is at heartbeat.heartbeat and uses UTC timestamps in the heartbeat.ts column. (https://www.percona.com/doc/percona-toolkit/2.2/pt-heartbeat.html)
lagDetectionOptions : if using pt-heartbeat, this can be set to an array map to change the default behavior. Normally, the heartbeat row with the server ID of this server's master will be used. Set the "conds" field to override the query conditions, e.g. ['shard' => 's1'].
useGTIDs : use GTID methods like MASTER_GTID_WAIT() when possible.
insertSelectIsSafe : force that native INSERT SELECT is or is not safe [default: null]
sslKeyPath : path to key file [default: null]
sslCertPath : path to certificate file [default: null]
sslCAFile: path to a single certificate authority PEM file [default: null]
sslCAPath : parth to certificate authority PEM directory [default: null]
sslCiphers : array list of allowable ciphers [default: null]
Parameters

array $params

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 97 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\useGTIDs().

Member Function Documentation

◆ addIdentifierQuotes()

Wikimedia\Rdbms\DatabaseMysqlBase::addIdentifierQuotes ( $s )

MySQL uses backticks for identifier quoting instead of the sql standard "double quotes".

Parameters

string $s

Returns: string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 657 of file DatabaseMysqlBase.php.

References $s.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\doSelectDomain(), Wikimedia\Rdbms\DatabaseMysqlBase\duplicateTableStructure(), Wikimedia\Rdbms\DatabaseMysqlBase\open(), and Wikimedia\Rdbms\DatabaseMysqlBase\tableExists().

◆ addQuotes()

Wikimedia\Rdbms\DatabaseMysqlBase::addQuotes ( $s )

Escape and quote a raw value string for use in a SQL query.

Parameters

string | int | null | bool | Blob $s

Returns: string|int

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 641 of file DatabaseMysqlBase.php.

References $s.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\lock(), Wikimedia\Rdbms\DatabaseMysqlBase\lockIsFree(), Wikimedia\Rdbms\DatabaseMysqlBase\masterPosWait(), Wikimedia\Rdbms\DatabaseMysqlBase\open(), and Wikimedia\Rdbms\DatabaseMysqlBase\unlock().

◆ buildIntegerCast()

Wikimedia\Rdbms\DatabaseMysqlBase::buildIntegerCast ( $field )

Parameters

string $field Field or column to cast

Returns: string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1537 of file DatabaseMysqlBase.php.

◆ buildStringCast()

Wikimedia\Rdbms\DatabaseMysqlBase::buildStringCast ( $field )

Parameters

string $field Field or column to cast

Returns: string

Since: 1.28

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1529 of file DatabaseMysqlBase.php.

◆ dataSeek()

Wikimedia\Rdbms\DatabaseMysqlBase::dataSeek	(	$res,
		$row
	)

Parameters

IResultWrapper \| resource	$res
int	$row

Returns: bool

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 402 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\mysqlDataSeek(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

◆ deleteJoin()

Wikimedia\Rdbms\DatabaseMysqlBase::deleteJoin	(	$delTable,
		$joinTable,
		$delVar,
		$joinVar,
		$conds,
		$fname = `__METHOD__`
	)

DELETE where the condition is a join.

MySql uses multi-table deletes.

Parameters

string	$delTable
string	$joinTable
string	$delVar
string	$joinVar
array \| string	$conds
bool \| string	$fname

Exceptions

DBUnexpectedError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1296 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\makeList(), Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().

◆ doGetLag()

Wikimedia\Rdbms\DatabaseMysqlBase::doGetLag ( )

protected

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 671 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\getLagDetectionMethod(), Wikimedia\Rdbms\DatabaseMysqlBase\getLagFromPtHeartbeat(), and Wikimedia\Rdbms\DatabaseMysqlBase\getLagFromSlaveStatus().

◆ doLockTables()

Wikimedia\Rdbms\DatabaseMysqlBase::doLockTables	(	array	$read,
		array	$write,
			$method
	)

protected

Helper function for lockTables() that handles the actual table locking.

Parameters

array	$read	Array of tables to lock for read access
array	$write	Array of tables to lock for write access
string	$method	Name of caller

Returns: true

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1246 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().

◆ doSelectDomain()

Wikimedia\Rdbms\DatabaseMysqlBase::doSelectDomain ( DatabaseDomain $domain )

protected

Parameters

DatabaseDomain $domain

Exceptions

DBConnectionError
DBError

Since: 1.32

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 180 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\addIdentifierQuotes(), Wikimedia\Rdbms\Database\executeQuery(), Wikimedia\Rdbms\DatabaseDomain\getDatabase(), Wikimedia\Rdbms\Database\getDBname(), Wikimedia\Rdbms\DatabaseDomain\getSchema(), Wikimedia\Rdbms\DatabaseDomain\getTablePrefix(), and Wikimedia\Rdbms\Database\reportQueryError().

◆ doUnlockTables()

Wikimedia\Rdbms\DatabaseMysqlBase::doUnlockTables ( $method )

protected

Helper function for unlockTables() that handles the actual table unlocking.

Parameters

string $method Name of caller

Returns: true

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1261 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\query().

◆ dropTable()

Wikimedia\Rdbms\DatabaseMysqlBase::dropTable	(	$tableName,
		$fName = `__METHOD__`
	)

Parameters

string	$tableName
string	$fName

Returns: bool|IResultWrapper

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1451 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\query(), Wikimedia\Rdbms\DatabaseMysqlBase\tableExists(), and Wikimedia\Rdbms\Database\tableName().

◆ duplicateTableStructure()

Wikimedia\Rdbms\DatabaseMysqlBase::duplicateTableStructure	(	$oldName,
		$newName,
		$temporary = `false`,
		$fname = `__METHOD__`
	)

Parameters

string	$oldName
string	$newName
bool	$temporary
string	$fname

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1411 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\addIdentifierQuotes(), and Wikimedia\Rdbms\Database\query().

◆ estimateRowCount()

Wikimedia\Rdbms\DatabaseMysqlBase::estimateRowCount	(	$table,
		$var = `'*'`,
		$conds = `''`,
		$fname = `__METHOD__`,
		$options = `[]`,
		$join_conds = `[]`
	)

Estimate rows in dataset Returns estimated count, based on EXPLAIN output Takes same arguments as Database::select()

Parameters

string \| array	$table
string \| array	$var
string \| array	$conds
string	$fname
string \| array	$options
array	$join_conds

Returns: bool|int

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 510 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\Database\extractSingleFieldFromList(), Wikimedia\Rdbms\Database\normalizeConditions(), Wikimedia\Rdbms\DatabaseMysqlBase\numRows(), and Wikimedia\Rdbms\Database\select().

◆ fetchObject()

Wikimedia\Rdbms\DatabaseMysqlBase::fetchObject ( $res )

Parameters

IResultWrapper | resource $res

Returns: stdClass|bool

Exceptions

DBUnexpectedError

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 253 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\IDatabase\lastErrno(), Wikimedia\Rdbms\DatabaseMysqlBase\lastError(), Wikimedia\Rdbms\DatabaseMysqlBase\mysqlFetchObject(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getServerId(), Wikimedia\Rdbms\DatabaseMysqlBase\getServerUUID(), Wikimedia\Rdbms\DatabaseMysqlBase\lock(), Wikimedia\Rdbms\DatabaseMysqlBase\lockIsFree(), Wikimedia\Rdbms\DatabaseMysqlBase\serverIsReadOnly(), and Wikimedia\Rdbms\DatabaseMysqlBase\unlock().

◆ fetchRow()

Wikimedia\Rdbms\DatabaseMysqlBase::fetchRow ( $res )

Parameters

IResultWrapper | resource $res

Returns: array|bool

Exceptions

DBUnexpectedError

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 286 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\IDatabase\lastErrno(), Wikimedia\Rdbms\DatabaseMysqlBase\lastError(), Wikimedia\Rdbms\DatabaseMysqlBase\mysqlFetchArray(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\masterPosWait().

◆ fieldInfo()

Wikimedia\Rdbms\DatabaseMysqlBase::fieldInfo	(	$table,
		$field
	)

Parameters

string	$table
string	$field

Returns: bool|MySQLField

Implements Wikimedia\Rdbms\IMaintainableDatabase.

Definition at line 566 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\DatabaseMysqlBase\mysqlFetchField(), Wikimedia\Rdbms\DatabaseMysqlBase\mysqlNumFields(), Wikimedia\Rdbms\Database\query(), Wikimedia\Rdbms\Database\tableName(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

◆ fieldName()

Wikimedia\Rdbms\DatabaseMysqlBase::fieldName	(	$res,
		$n
	)

Parameters

IResultWrapper \| resource	$res
int	$n

Returns: string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 365 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\mysqlFieldName(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

◆ fieldType()

Wikimedia\Rdbms\DatabaseMysqlBase::fieldType	(	$res,
		$n
	)

mysql_field_type() wrapper

Parameters

IResultWrapper \| resource	$res
int	$n

Returns: string

Definition at line 384 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\mysqlFieldType(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

◆ freeResult()

Wikimedia\Rdbms\DatabaseMysqlBase::freeResult ( $res )

Parameters

IResultWrapper | resource $res

Exceptions

DBUnexpectedError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 231 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\mysqlFreeResult(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

◆ getApproximateLagStatus()

Wikimedia\Rdbms\DatabaseMysqlBase::getApproximateLagStatus ( )

protected

Get a replica DB lag estimate for this server.

Returns: array ('lag': seconds or false on error, 'since': UNIX timestamp of estimate)

Since: 1.27

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 829 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\getLagDetectionMethod(), and Wikimedia\Rdbms\Database\getServer().

◆ getHeartbeatData()

Wikimedia\Rdbms\DatabaseMysqlBase::getHeartbeatData ( array $conds )

protected

Parameters

array $conds WHERE clause conditions to find a row

Returns: array (heartbeat ts column value or null, UNIX timestamp) for the newest beat

See also: https://www.percona.com/doc/percona-toolkit/2.1/pt-heartbeat.html

Definition at line 812 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\Database\makeList(), and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getLagFromPtHeartbeat().

◆ getLagDetectionMethod()

Wikimedia\Rdbms\DatabaseMysqlBase::getLagDetectionMethod ( )

protected

Returns: string

Definition at line 682 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\$lagDetectionMethod.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\doGetLag(), and Wikimedia\Rdbms\DatabaseMysqlBase\getApproximateLagStatus().

◆ getLagFromPtHeartbeat()

Wikimedia\Rdbms\DatabaseMysqlBase::getLagFromPtHeartbeat ( )

protected

Returns: bool|float

Definition at line 704 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\$lagDetectionOptions, Wikimedia\Rdbms\DatabaseMysqlBase\getHeartbeatData(), Wikimedia\Rdbms\Database\getLogContext(), Wikimedia\Rdbms\DatabaseMysqlBase\getMasterServerInfo(), and Wikimedia\Rdbms\Database\getRecordedTransactionLagStatus().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\doGetLag().

◆ getLagFromSlaveStatus()

Wikimedia\Rdbms\DatabaseMysqlBase::getLagFromSlaveStatus ( )

protected

Returns: bool|int

Definition at line 689 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\doGetLag().

◆ getMasterPos()

Wikimedia\Rdbms\DatabaseMysqlBase::getMasterPos ( )

Get the position of the master from SHOW MASTER STATUS.

Returns: MySQLMasterPos|bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 970 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\getServerGTIDs(), Wikimedia\Rdbms\DatabaseMysqlBase\getServerId(), Wikimedia\Rdbms\DatabaseMysqlBase\getServerRoleStatus(), Wikimedia\Rdbms\DatabaseMysqlBase\getServerUUID(), and Wikimedia\Rdbms\DatabaseMysqlBase\useGTIDs().

◆ getMasterServerInfo()

Wikimedia\Rdbms\DatabaseMysqlBase::getMasterServerInfo ( )

protected

Definition at line 767 of file DatabaseMysqlBase.php.

References $cache, Wikimedia\Rdbms\Database\$conn, Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\Database\$srvCache, Wikimedia\Rdbms\Database\getLazyMasterHandle(), Wikimedia\Rdbms\Database\getLBInfo(), Wikimedia\Rdbms\Database\getServer(), and BagOStuff\makeGlobalKey().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getLagFromPtHeartbeat().

◆ getMysqlStatus()

Wikimedia\Rdbms\DatabaseMysqlBase::getMysqlStatus ( $which = "%" )

private

Get status information from SHOW STATUS in an associative array.

Parameters

string $which

Returns: array

Definition at line 1465 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getServerUptime().

◆ getReplicaPos()

Wikimedia\Rdbms\DatabaseMysqlBase::getReplicaPos ( )

Get the position of the master from SHOW SLAVE STATUS.

Returns: MySQLMasterPos|bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 940 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\getServerGTIDs(), Wikimedia\Rdbms\DatabaseMysqlBase\getServerRoleStatus(), and Wikimedia\Rdbms\DatabaseMysqlBase\useGTIDs().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\masterPosWait().

◆ getReplicationSafetyInfo()

Wikimedia\Rdbms\DatabaseMysqlBase::getReplicationSafetyInfo ( )

protected

Returns: stdClass Process cached row

Definition at line 481 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\$replicationInfoRow, and Wikimedia\Rdbms\Database\selectRow().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\isInsertSelectSafe().

◆ getServerGTIDs()

Wikimedia\Rdbms\DatabaseMysqlBase::getServerGTIDs ( $fname = __METHOD__ )

protected

Parameters

string $fname

Returns: string[]

Definition at line 1044 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getMasterPos(), and Wikimedia\Rdbms\DatabaseMysqlBase\getReplicaPos().

◆ getServerId()

Wikimedia\Rdbms\DatabaseMysqlBase::getServerId ( )

protected

Returns: int

Exceptions

DBQueryError If the variable doesn't exist for some reason

Definition at line 1008 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject(), and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getMasterPos().

◆ getServerRoleStatus()

Wikimedia\Rdbms\DatabaseMysqlBase::getServerRoleStatus	(	$role,
		$fname = `__METHOD__`
	)

protected

Parameters

string	$role	One of "MASTER"/"SLAVE"
string	$fname

Returns: string[] Latest available server status row

Definition at line 1067 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getMasterPos(), and Wikimedia\Rdbms\DatabaseMysqlBase\getReplicaPos().

◆ getServerUptime()

Wikimedia\Rdbms\DatabaseMysqlBase::getServerUptime ( )

Determines how long the server has been up.

Returns: int

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1346 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\getMysqlStatus().

◆ getServerUUID()

Wikimedia\Rdbms\DatabaseMysqlBase::getServerUUID ( )

protected

Returns: string|null

Definition at line 1025 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject(), and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getMasterPos().

◆ getServerVersion()

Wikimedia\Rdbms\DatabaseMysqlBase::getServerVersion ( )

Returns: string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 1119 of file DatabaseMysqlBase.php.

References $cache, Wikimedia\Rdbms\Database\$srvCache, BagOStuff\getWithSetCallback(), and Wikimedia\Rdbms\Database\selectField().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getSoftwareLink().

◆ getSoftwareLink()

Wikimedia\Rdbms\DatabaseMysqlBase::getSoftwareLink ( )

Returns: string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 1101 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\getServerVersion().

◆ getType()

Wikimedia\Rdbms\DatabaseMysqlBase::getType ( )

Returns: string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 118 of file DatabaseMysqlBase.php.

◆ ignoreIndexClause()

Wikimedia\Rdbms\DatabaseMysqlBase::ignoreIndexClause ( $index )

Parameters

string $index

Returns: string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1094 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\indexName().

◆ indexInfo()

Wikimedia\Rdbms\DatabaseMysqlBase::indexInfo	(	$table,
		$index,
		$fname = `__METHOD__`
	)

Get information about an index into an object Returns false if the index does not exist.

Parameters

string	$table
string	$index
string	$fname

Returns: bool|array|null False or null on failure

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 602 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\Database\indexName(), Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().

◆ isInsertSelectSafe()

Wikimedia\Rdbms\DatabaseMysqlBase::isInsertSelectSafe	(	array	$insertOptions,
		array	$selectOptions
	)

protected

Parameters

array	$insertOptions	INSERT options
array	$selectOptions	SELECT options

Returns: bool Whether an INSERT SELECT with these options will be replication safe

Since: 1.31

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 455 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\getReplicationSafetyInfo().

◆ isQuotedIdentifier()

Wikimedia\Rdbms\DatabaseMysqlBase::isQuotedIdentifier ( $name )

Parameters

string $name

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 667 of file DatabaseMysqlBase.php.

◆ isTransactableQuery()

Wikimedia\Rdbms\DatabaseMysqlBase::isTransactableQuery ( $sql )

protected

Determine whether a SQL statement is sensitive to isolation level.

A SQL statement is considered transactable if its result could vary depending on the transaction isolation level. Operational commands such as 'SET' and 'SHOW' are not considered to be transactable.

Main purpose: Used by query() to decide whether to begin a transaction before the current query (in DBO_TRX mode, on by default).

Parameters

string $sql

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1524 of file DatabaseMysqlBase.php.

◆ isView()

Wikimedia\Rdbms\DatabaseMysqlBase::isView	(	$name,
		$prefix = `null`
	)

Differentiates between a TABLE and a VIEW.

Parameters

string	$name	Name of the TABLE/VIEW to test
string \| null	$prefix

Returns: bool

Since: 1.22

Definition at line 1520 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\listViews().

◆ lastError()

Wikimedia\Rdbms\DatabaseMysqlBase::lastError ( )

Returns: string

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 418 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\mysqlError().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject(), Wikimedia\Rdbms\DatabaseMysqlBase\fetchRow(), Wikimedia\Rdbms\DatabaseMysqlBase\open(), and Wikimedia\Rdbms\DatabaseMysqlBase\wasReadOnlyError().

◆ listTables()

Wikimedia\Rdbms\DatabaseMysqlBase::listTables	(	$prefix = `null`,
		$fname = `__METHOD__`
	)

List all tables on the database.

Parameters

string \| null	$prefix	Only show tables with this prefix, e.g. mw_
string	$fname	Calling function name

Returns: array

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1429 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\query().

◆ listViews()

Wikimedia\Rdbms\DatabaseMysqlBase::listViews	(	$prefix = `null`,
		$fname = `__METHOD__`
	)

Lists VIEWs in the database.

Parameters

string \| null	$prefix	Only show VIEWs with this prefix, eg. unit_test_, or $wgDBprefix. Default: null, would return all views.
string	$fname	Name of calling function

Returns: array

Since: 1.22

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1486 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\Database\getDBname(), and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\isView().

◆ lock()

Wikimedia\Rdbms\DatabaseMysqlBase::lock	(	$lockName,
		$method,
		$timeout = `5`
	)

Parameters

string	$lockName
string	$method
int	$timeout

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1190 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\DatabaseMysqlBase\addQuotes(), Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject(), Wikimedia\Rdbms\DatabaseMysqlBase\makeLockName(), and Wikimedia\Rdbms\Database\query().

◆ lockIsFree()

Wikimedia\Rdbms\DatabaseMysqlBase::lockIsFree	(	$lockName,
		$method
	)

Check to see if a named lock is available.

This is non-blocking.

Parameters

string	$lockName	Name of lock to poll
string	$method	Name of method calling us

Returns: bool

Since: 1.20

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1170 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\DatabaseMysqlBase\addQuotes(), Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject(), Wikimedia\Rdbms\DatabaseMysqlBase\makeLockName(), and Wikimedia\Rdbms\Database\query().

◆ makeLockName()

Wikimedia\Rdbms\DatabaseMysqlBase::makeLockName ( $lockName )

private

Definition at line 1232 of file DatabaseMysqlBase.php.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\lock(), Wikimedia\Rdbms\DatabaseMysqlBase\lockIsFree(), and Wikimedia\Rdbms\DatabaseMysqlBase\unlock().

◆ masterPosWait()

Wikimedia\Rdbms\DatabaseMysqlBase::masterPosWait	(	DBMasterPos	$pos,
			$timeout
	)

Wait for the replica DB to catch up to a given master position.

Note that this does not start any new transactions. If any existing transaction is flushed, and this is called, then queries will reflect the point the DB was synced up to (on success) without interference from REPEATABLE-READ snapshots.

Parameters

DBMasterPos	$pos
int	$timeout	The maximum number of seconds to wait for synchronisation

Returns: int|null Zero if the replica DB was past that position already, greater than zero if we waited for some period of time, less than zero if it timed out, and null on error

Exceptions

DBError If an error occurs, see IDatabase::query()

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 847 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\addQuotes(), Wikimedia\Rdbms\DatabaseMysqlBase\fetchRow(), Wikimedia\Rdbms\Database\getLBInfo(), Wikimedia\Rdbms\Database\getLogContext(), Wikimedia\Rdbms\DatabaseMysqlBase\getReplicaPos(), and Wikimedia\Rdbms\Database\query().

◆ mysqlConnect()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlConnect	(	$realServer,
		$dbName
	)

abstractprotected

Open a connection to a MySQL server.

Parameters

string	$realServer
string \| null	$dbName

Returns: mixed|null Driver connection handle

Exceptions

DBConnectionError

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\open().

◆ mysqlDataSeek()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlDataSeek	(	$res,
		$row
	)

abstractprotected

Move internal result pointer.

Parameters

IResultWrapper \| resource	$res
int	$row

Returns: bool

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\dataSeek().

◆ mysqlError()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlError ( $conn = null )

abstractprotected

Returns the text of the error message from previous MySQL operation.

Parameters

resource | null $conn Raw connection

Returns: string

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\lastError().

◆ mysqlFetchArray()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlFetchArray ( $res )

abstractprotected

Fetch a result row as an associative and numeric array.

Parameters

resource $res Raw result

Returns: array|false

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\fetchRow().

◆ mysqlFetchField()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlFetchField	(	$res,
		$n
	)

abstractprotected

Get column information from a result.

Parameters

resource	$res	Raw result
int	$n

Returns: stdClass

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\fieldInfo().

◆ mysqlFetchObject()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlFetchObject ( $res )

abstractprotected

Fetch a result row as an object.

Parameters

resource $res Raw result

Returns: stdClass

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject().

◆ mysqlFieldName()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlFieldName	(	$res,
		$n
	)

abstractprotected

Get the name of the specified field in a result.

Parameters

IResultWrapper \| resource	$res
int	$n

Returns: string

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\fieldName().

◆ mysqlFieldType()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlFieldType	(	$res,
		$n
	)

abstractprotected

Get the type of the specified field in a result.

Parameters

IResultWrapper \| resource	$res
int	$n

Returns: string

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\fieldType().

◆ mysqlFreeResult()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlFreeResult ( $res )

abstractprotected

Free result memory.

Parameters

resource $res Raw result

Returns: bool

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\freeResult().

◆ mysqlNumFields()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlNumFields ( $res )

abstractprotected

Get number of fields in result.

Parameters

resource $res Raw result

Returns: int

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\fieldInfo(), and Wikimedia\Rdbms\DatabaseMysqlBase\numFields().

◆ mysqlNumRows()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlNumRows ( $res )

abstractprotected

Get number of rows in result.

Parameters

resource $res Raw result

Returns: int

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\numRows().

◆ mysqlRealEscapeString()

Wikimedia\Rdbms\DatabaseMysqlBase::mysqlRealEscapeString ( $s )

abstractprotected

Parameters

string $s

Returns: mixed

Reimplemented in Wikimedia\Rdbms\DatabaseMysqli.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\strencode().

◆ namedLocksEnqueue()

Wikimedia\Rdbms\DatabaseMysqlBase::namedLocksEnqueue ( )

Check to see if a named lock used by lock() use blocking queues.

Returns: bool

Since: 1.26

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1238 of file DatabaseMysqlBase.php.

◆ numFields()

Wikimedia\Rdbms\DatabaseMysqlBase::numFields ( $res )

Parameters

IResultWrapper | resource $res

Returns: int

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 348 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\mysqlNumFields(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

◆ numRows()

Wikimedia\Rdbms\DatabaseMysqlBase::numRows ( $res )

Exceptions

DBUnexpectedError

Parameters

IResultWrapper | resource $res

Returns: int

Implements Wikimedia\Rdbms\IDatabase.

Definition at line 319 of file DatabaseMysqlBase.php.

References $res, Wikimedia\Rdbms\DatabaseMysqlBase\mysqlNumRows(), and Wikimedia\Rdbms\ResultWrapper\unwrap().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\estimateRowCount().

◆ open()

Wikimedia\Rdbms\DatabaseMysqlBase::open	(	$server,
		$user,
		$password,
		$dbName,
		$schema,
		$tablePrefix
	)

protected

Open a new connection to the database (closing any existing one)

Parameters

string \| null	$server	Database server host
string \| null	$user	Database user name
string \| null	$password	Database user password
string \| null	$dbName	Database name
string \| null	$schema	Database schema name
string	$tablePrefix	Table prefix

Exceptions

DBConnectionError

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 122 of file DatabaseMysqlBase.php.

◆ replace()

Wikimedia\Rdbms\DatabaseMysqlBase::replace	(	$table,
		$uniqueIndexes,
		$rows,
		$fname = `__METHOD__`
	)

REPLACE query wrapper.

REPLACE is a very handy MySQL extension, which functions like an INSERT except that when there is a duplicate key error, the old row is deleted and the new row is inserted in its place.

We simulate this with standard SQL with a DELETE followed by INSERT. To perform the delete, we need to know what the unique indexes are so that we know how to find the conflicting rows.

It may be more efficient to leave off unique indexes which are unlikely to collide. However if you do this, you run the risk of encountering errors which wouldn't have occurred in MySQL.

Parameters

string	$table	The table to replace the row(s) in.
array[] \| string[] \| string	$uniqueIndexes	All unique indexes. One of the following: a) the one unique field in the table (when no composite unique key exist) b) a list of all unique fields in the table (when no composite unique key exist) c) a list of all unique indexes in the table (each as a list of the indexed fields)
array	$rows	Can be either a single row to insert, or multiple rows, in the same format as for IDatabase::insert()
string	$fname	Calling function name (use METHOD) for logs/profiling

Exceptions

DBError If an error occurs, see IDatabase::query()

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 451 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\nativeReplace().

◆ serverIsReadOnly()

Wikimedia\Rdbms\DatabaseMysqlBase::serverIsReadOnly ( )

Returns: bool Whether the DB is marked as read-only server-side

Since: 1.28

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1073 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject(), and Wikimedia\Rdbms\Database\query().

◆ setBigSelects()

Wikimedia\Rdbms\DatabaseMysqlBase::setBigSelects ( $value = true )

Parameters

bool $value

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1270 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\$defaultBigSelects, Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\selectField().

◆ setSessionOptions()

Wikimedia\Rdbms\DatabaseMysqlBase::setSessionOptions ( array $options )

Parameters

array $options

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1138 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, and Wikimedia\Rdbms\Database\query().

◆ streamStatementEnd()

Wikimedia\Rdbms\DatabaseMysqlBase::streamStatementEnd	(	&	$sql,
		&	$newLine
	)

Parameters

string	&$sql
string	&$newLine

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1152 of file DatabaseMysqlBase.php.

◆ strencode()

Wikimedia\Rdbms\DatabaseMysqlBase::strencode ( $s )

Parameters

string $s

Returns: string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 631 of file DatabaseMysqlBase.php.

References $s, and Wikimedia\Rdbms\DatabaseMysqlBase\mysqlRealEscapeString().

◆ tableExists()

Wikimedia\Rdbms\DatabaseMysqlBase::tableExists	(	$table,
		$fname = `__METHOD__`
	)

Query whether a given table exists.

Parameters

string	$table
string	$fname

Returns: bool

Exceptions

DBError If an error occurs, see IDatabase::query()

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 536 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\addIdentifierQuotes(), Wikimedia\Rdbms\Database\escapeLikeInternal(), Wikimedia\Rdbms\Database\qualifiedTableComponents(), and Wikimedia\Rdbms\Database\query().

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\dropTable().

◆ tableLocksHaveTransactionScope()

Wikimedia\Rdbms\DatabaseMysqlBase::tableLocksHaveTransactionScope ( )

Checks if table locks acquired by lockTables() are transaction-bound in their scope.

Transaction-bound table locks will be released when the current transaction terminates. Table locks that are not bound to a transaction are not effected by BEGIN/COMMIT/ROLLBACK and will last until either lockTables()/unlockTables() is called or the TCP connection to the database is closed.

Returns: bool

Since: 1.29

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1242 of file DatabaseMysqlBase.php.

◆ unlock()

Wikimedia\Rdbms\DatabaseMysqlBase::unlock	(	$lockName,
		$method
	)

FROM MYSQL DOCS: https://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#function_release-lock.

Parameters

string	$lockName
string	$method

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1215 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\$flags, $res, Wikimedia\Rdbms\DatabaseMysqlBase\addQuotes(), Wikimedia\Rdbms\DatabaseMysqlBase\fetchObject(), Wikimedia\Rdbms\DatabaseMysqlBase\makeLockName(), and Wikimedia\Rdbms\Database\query().

◆ upsert()

Wikimedia\Rdbms\DatabaseMysqlBase::upsert	(		$table,
		array	$rows,
			$uniqueIndexes,
		array	$set,
			$fname = `__METHOD__`
	)

INSERT ON DUPLICATE KEY UPDATE wrapper, upserts an array into a table.

This updates any conflicting rows (according to the unique indexes) using the provided SET clause and inserts any remaining (non-conflicted) rows.

$rows may be either:

A single associative array. The array keys are the field names, and the values are the values to insert. The values are treated as data and will be quoted appropriately. If NULL is inserted, this will be converted to a database NULL.
An array with numeric keys, holding a list of associative arrays. This causes a multi-row INSERT on DBMSs that support it. The keys in each subarray must be identical to each other, and in the same order.

It may be more efficient to leave off unique indexes which are unlikely to collide. However if you do this, you run the risk of encountering errors which wouldn't have occurred in MySQL.

Parameters

string	$table	Table name. This will be passed through Database::tableName().
array	$rows	A single row or list of rows to insert
array[] \| string[] \| string	$uniqueIndexes	All unique indexes. One of the following: a) the one unique field in the table (when no composite unique key exist) b) a list of all unique fields in the table (when no composite unique key exist) c) a list of all unique indexes in the table (each as a list of the indexed fields)
array	$set	An array of values to SET. For each array element, the key gives the field name, and the value gives the data to set that field to. The data will be quoted by IDatabase::addQuotes(). Values with integer keys form unquoted SET statements, which can be used for things like "field = field + 1" or similar computed values.
string	$fname	Calling function name (use METHOD) for logs/profiling

Returns: bool Return true if no exception was thrown (deprecated since 1.33)

Exceptions

DBError If an error occurs, see IDatabase::query()

Since: 1.22

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1314 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\makeList(), Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().

◆ useGTIDs()

Wikimedia\Rdbms\DatabaseMysqlBase::useGTIDs ( )

protected

Definition at line 1544 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\DatabaseMysqlBase\$useGTIDs.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\__construct(), Wikimedia\Rdbms\DatabaseMysqlBase\getMasterPos(), and Wikimedia\Rdbms\DatabaseMysqlBase\getReplicaPos().

◆ useIndexClause()

Wikimedia\Rdbms\DatabaseMysqlBase::useIndexClause ( $index )

Parameters

string $index

Returns: string

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1086 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\Database\indexName().

◆ wasConnectionError()

Wikimedia\Rdbms\DatabaseMysqlBase::wasConnectionError ( $errno )

Do not use this method outside of Database/DBError classes.

Parameters

int | string $errno

Returns: bool Whether the given query error was a connection drop

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1380 of file DatabaseMysqlBase.php.

◆ wasDeadlock()

Wikimedia\Rdbms\DatabaseMysqlBase::wasDeadlock ( )

Determines if the last failure was due to a deadlock.

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1357 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\IDatabase\lastErrno().

◆ wasKnownStatementRollbackError()

Wikimedia\Rdbms\DatabaseMysqlBase::wasKnownStatementRollbackError ( )

protected

Returns: bool Whether it is known that the last query error only caused statement rollback

Note: This is for backwards compatibility for callers catching DBError exceptions in order to ignore problems like duplicate key errors or foriegn key violations

Since: 1.31

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1384 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\IDatabase\lastErrno(), and Wikimedia\Rdbms\Database\selectRow().

◆ wasLockTimeout()

Wikimedia\Rdbms\DatabaseMysqlBase::wasLockTimeout ( )

Determines if the last failure was due to a lock timeout.

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1366 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\IDatabase\lastErrno().

◆ wasQueryTimeout()

Wikimedia\Rdbms\DatabaseMysqlBase::wasQueryTimeout	(	$error,
		$errno
	)

protected

Checks whether the cause of the error is detected to be a timeout.

It returns false by default, and not all engines support detecting this yet. If this returns false, it will be treated as a generic query error.

Parameters

string	$error	Error text
int	$errno	Error number

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 445 of file DatabaseMysqlBase.php.

◆ wasReadOnlyError()

Wikimedia\Rdbms\DatabaseMysqlBase::wasReadOnlyError ( )

Determines if the last failure was due to the database being read-only.

Returns: bool

Reimplemented from Wikimedia\Rdbms\Database.

Definition at line 1375 of file DatabaseMysqlBase.php.

References Wikimedia\Rdbms\IDatabase\lastErrno(), and Wikimedia\Rdbms\DatabaseMysqlBase\lastError().

Member Data Documentation

◆ $defaultBigSelects

bool null Wikimedia\Rdbms\DatabaseMysqlBase::$defaultBigSelects = null

protected

Definition at line 65 of file DatabaseMysqlBase.php.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\setBigSelects().

◆ $insertSelectIsSafe

bool null Wikimedia\Rdbms\DatabaseMysqlBase::$insertSelectIsSafe = null

private

Definition at line 68 of file DatabaseMysqlBase.php.

◆ $lagDetectionMethod

string Wikimedia\Rdbms\DatabaseMysqlBase::$lagDetectionMethod

protected

Method to detect replica DB lag.

Definition at line 45 of file DatabaseMysqlBase.php.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getLagDetectionMethod().

◆ $lagDetectionOptions

array Wikimedia\Rdbms\DatabaseMysqlBase::$lagDetectionOptions = []

protected

Method to detect replica DB lag.

Definition at line 47 of file DatabaseMysqlBase.php.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getLagFromPtHeartbeat().

◆ $lastKnownReplicaPos

MysqlMasterPos Wikimedia\Rdbms\DatabaseMysqlBase::$lastKnownReplicaPos

protected

Definition at line 43 of file DatabaseMysqlBase.php.

◆ $replicationInfoRow

stdClass null Wikimedia\Rdbms\DatabaseMysqlBase::$replicationInfoRow = null

private

Definition at line 70 of file DatabaseMysqlBase.php.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\getReplicationSafetyInfo().

◆ $sqlMode

string Wikimedia\Rdbms\DatabaseMysqlBase::$sqlMode

protected

sql_mode value to send on connection

Definition at line 61 of file DatabaseMysqlBase.php.

◆ $sslCAFile

string null Wikimedia\Rdbms\DatabaseMysqlBase::$sslCAFile

protected

Definition at line 55 of file DatabaseMysqlBase.php.

◆ $sslCAPath

string null Wikimedia\Rdbms\DatabaseMysqlBase::$sslCAPath

protected

Definition at line 57 of file DatabaseMysqlBase.php.

◆ $sslCertPath

string null Wikimedia\Rdbms\DatabaseMysqlBase::$sslCertPath

protected

Definition at line 53 of file DatabaseMysqlBase.php.

◆ $sslCiphers

string [] null Wikimedia\Rdbms\DatabaseMysqlBase::$sslCiphers

protected

Definition at line 59 of file DatabaseMysqlBase.php.

◆ $sslKeyPath

string null Wikimedia\Rdbms\DatabaseMysqlBase::$sslKeyPath

protected

Definition at line 51 of file DatabaseMysqlBase.php.

◆ $useGTIDs

bool Wikimedia\Rdbms\DatabaseMysqlBase::$useGTIDs = false

protected

bool Whether to use GTID methods

Definition at line 49 of file DatabaseMysqlBase.php.

Referenced by Wikimedia\Rdbms\DatabaseMysqlBase\useGTIDs().

◆ $utf8Mode

bool Wikimedia\Rdbms\DatabaseMysqlBase::$utf8Mode

protected

Use experimental UTF-8 transmission encoding.

Definition at line 63 of file DatabaseMysqlBase.php.

◆ SERVER_ID_CACHE_TTL

const Wikimedia\Rdbms\DatabaseMysqlBase::SERVER_ID_CACHE_TTL = 86400

Definition at line 73 of file DatabaseMysqlBase.php.

The documentation for this class was generated from the following file:

includes/libs/rdbms/database/DatabaseMysqlBase.php

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ __construct()

Member Function Documentation

◆ addIdentifierQuotes()

◆ addQuotes()

◆ buildIntegerCast()

◆ buildStringCast()

◆ dataSeek()

◆ deleteJoin()

◆ doGetLag()

◆ doLockTables()

◆ doSelectDomain()

◆ doUnlockTables()

◆ dropTable()

◆ duplicateTableStructure()

◆ estimateRowCount()

◆ fetchObject()

◆ fetchRow()

◆ fieldInfo()

◆ fieldName()

◆ fieldType()

◆ freeResult()

◆ getApproximateLagStatus()

◆ getHeartbeatData()

◆ getLagDetectionMethod()

◆ getLagFromPtHeartbeat()

◆ getLagFromSlaveStatus()

◆ getMasterPos()

◆ getMasterServerInfo()

◆ getMysqlStatus()

◆ getReplicaPos()

◆ getReplicationSafetyInfo()

◆ getServerGTIDs()

◆ getServerId()

◆ getServerRoleStatus()

◆ getServerUptime()

◆ getServerUUID()

◆ getServerVersion()

◆ getSoftwareLink()

◆ getType()

◆ ignoreIndexClause()

◆ indexInfo()

◆ isInsertSelectSafe()

◆ isQuotedIdentifier()

◆ isTransactableQuery()

◆ isView()

◆ lastError()

◆ listTables()

◆ listViews()

◆ lock()

◆ lockIsFree()

◆ makeLockName()

◆ masterPosWait()

◆ mysqlConnect()

◆ mysqlDataSeek()

◆ mysqlError()

◆ mysqlFetchArray()

◆ mysqlFetchField()

◆ mysqlFetchObject()

◆ mysqlFieldName()

◆ mysqlFieldType()

◆ mysqlFreeResult()

◆ mysqlNumFields()

◆ mysqlNumRows()

◆ mysqlRealEscapeString()

◆ namedLocksEnqueue()

◆ numFields()

◆ numRows()

◆ open()

◆ replace()

◆ serverIsReadOnly()

◆ setBigSelects()