MediaWiki 1.42.1
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Inherits Wikimedia\Rdbms\Database.
Public Member Functions | |||||||||||||||
__construct (array $params) | |||||||||||||||
Additional $params include: | |||||||||||||||
doLock (string $lockName, string $method, int $timeout) | |||||||||||||||
doLockIsFree (string $lockName, string $method) | |||||||||||||||
doUnlock (string $lockName, string $method) | |||||||||||||||
duplicateTableStructure ( $oldName, $newName, $temporary=false, $fname=__METHOD__) | |||||||||||||||
estimateRowCount ( $tables, $var=' *', $conds='', $fname=__METHOD__, $options=[], $join_conds=[]) | |||||||||||||||
Estimate rows in dataset Returns estimated count, based on EXPLAIN output Takes same arguments as Database::select() | |||||||||||||||
fieldInfo ( $table, $field) | |||||||||||||||
getServerVersion () | |||||||||||||||
getSoftwareLink () | |||||||||||||||
getType () | |||||||||||||||
indexInfo ( $table, $index, $fname=__METHOD__) | |||||||||||||||
Get information about an index into an object Returns false if the index does not exist. | |||||||||||||||
insertId () | |||||||||||||||
Get the sequence-based ID assigned by the last query method call. | |||||||||||||||
lastErrno () | |||||||||||||||
lastError () | |||||||||||||||
listTables ( $prefix=null, $fname=__METHOD__) | |||||||||||||||
List all tables on the database. | |||||||||||||||
listViews ( $prefix=null, $fname=__METHOD__) | |||||||||||||||
Lists VIEWs in the database. | |||||||||||||||
namedLocksEnqueue () | |||||||||||||||
Check to see if a named lock used by lock() use blocking queues. | |||||||||||||||
replace ( $table, $uniqueKeys, $rows, $fname=__METHOD__) | |||||||||||||||
Insert row(s) into a table, in the provided order, while deleting conflicting rows. | |||||||||||||||
selectSQLText ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[]) | |||||||||||||||
Take the same arguments as IDatabase::select() and return the SQL it would use. | |||||||||||||||
serverIsReadOnly () | |||||||||||||||
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setSessionOptions (array $options) | |||||||||||||||
streamStatementEnd (&$sql, &$newLine) | |||||||||||||||
strencode ( $s) | |||||||||||||||
tableExists ( $table, $fname=__METHOD__) | |||||||||||||||
Query whether a given table exists. | |||||||||||||||
upsert ( $table, array $rows, $uniqueKeys, array $set, $fname=__METHOD__) | |||||||||||||||
Upsert row(s) into a table, in the provided order, while updating conflicting rows. | |||||||||||||||
wasDeadlock () | |||||||||||||||
Determines if the last failure was due to a deadlock. | |||||||||||||||
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 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. | |||||||||||||||
addIdentifierQuotes ( $s) | |||||||||||||||
Escape a SQL identifier (e.g. | |||||||||||||||
addQuotes ( $s) | |||||||||||||||
Escape and quote a raw value string for use in a SQL query. | |||||||||||||||
affectedRows () | |||||||||||||||
Get the number of rows affected by the last query method call. | |||||||||||||||
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. | |||||||||||||||
begin ( $fname=__METHOD__, $mode=self::TRANSACTION_EXPLICIT) | |||||||||||||||
Begin a transaction. | |||||||||||||||
bitAnd ( $fieldLeft, $fieldRight) | |||||||||||||||
bitNot ( $field) | |||||||||||||||
bitOr ( $fieldLeft, $fieldRight) | |||||||||||||||
buildComparison (string $op, array $conds) | |||||||||||||||
Build a condition comparing multiple values, for use with indexes that cover multiple fields, common when e.g. | |||||||||||||||
buildConcat ( $stringList) | |||||||||||||||
Build a concatenation list to feed into a SQL query. | |||||||||||||||
buildExcludedValue ( $column) | |||||||||||||||
Build a reference to a column value from the conflicting proposed upsert() row. | |||||||||||||||
buildGreatest ( $fields, $values) | |||||||||||||||
Build a GREATEST function statement comparing columns/values. | |||||||||||||||
buildGroupConcatField ( $delim, $table, $field, $conds='', $join_conds=[]) | |||||||||||||||
Build a GROUP_CONCAT or equivalent statement for a query. | |||||||||||||||
buildIntegerCast ( $field) | |||||||||||||||
buildLeast ( $fields, $values) | |||||||||||||||
Build a LEAST function statement comparing columns/values. | |||||||||||||||
buildLike ( $param,... $params) | |||||||||||||||
LIKE statement wrapper. | |||||||||||||||
buildSelectSubquery ( $table, $vars, $conds='', $fname=__METHOD__, $options=[], $join_conds=[]) | |||||||||||||||
Equivalent to IDatabase::selectSQLText() except wraps the result in Subquery. | |||||||||||||||
buildStringCast ( $field) | |||||||||||||||
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__) | |||||||||||||||
Close the database connection. | |||||||||||||||
commit ( $fname=__METHOD__, $flush=self::FLUSHING_ONE) | |||||||||||||||
Commits a transaction previously started using begin() | |||||||||||||||
conditional ( $cond, $caseTrueExpression, $caseFalseExpression) | |||||||||||||||
Returns an SQL expression for a simple conditional. | |||||||||||||||
connectionErrorLogger ( $errno, $errstr) | |||||||||||||||
Error handler for logging errors during database connection. | |||||||||||||||
databasesAreIndependent () | |||||||||||||||
Returns true if DBs are assumed to be on potentially different servers. | |||||||||||||||
dbSchema ( $schema=null) | |||||||||||||||
Get/set the db schema. | |||||||||||||||
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 all rows in a table that match a condition. | |||||||||||||||
deleteJoin ( $delTable, $joinTable, $delVar, $joinVar, $conds, $fname=__METHOD__) | |||||||||||||||
Delete all rows in a table that match a condition which includes a join. | |||||||||||||||
doAtomicSection ( $fname, callable $callback, $cancelable=self::ATOMIC_NOT_CANCELABLE) | |||||||||||||||
Perform an atomic section of reversible SQL statements from a callback. | |||||||||||||||
dropTable ( $table, $fname=__METHOD__) | |||||||||||||||
Delete a table. | |||||||||||||||
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 () | |||||||||||||||
Check whether there is a transaction open at the specific request of a caller. | |||||||||||||||
expr (string $field, string $op, $value) | |||||||||||||||
See Expression::__construct() | |||||||||||||||
factorConds ( $condsArray) | |||||||||||||||
Given an array of condition arrays representing an OR list of AND lists, for example: | |||||||||||||||
fieldExists ( $table, $field, $fname=__METHOD__) | |||||||||||||||
Determines whether a field exists in a table. | |||||||||||||||
flushSession ( $fname=__METHOD__, $flush=self::FLUSHING_ONE) | |||||||||||||||
Release important session-level state (named lock, table locks) as post-rollback cleanup. | |||||||||||||||
flushSnapshot ( $fname=__METHOD__, $flush=self::FLUSHING_ONE) | |||||||||||||||
Commit any transaction but error out if writes or callbacks are pending. | |||||||||||||||
getDBname () | |||||||||||||||
Get the current database name; null if there isn't one. | |||||||||||||||
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 seconds of replication lag on this database server. | |||||||||||||||
getLBInfo ( $name=null) | |||||||||||||||
Get properties passed down from the server info array of the load balancer. | |||||||||||||||
getPrimaryPos () | |||||||||||||||
Get the replication position of this primary DB server. | |||||||||||||||
getReplicaPos () | |||||||||||||||
Get the replication position of this replica DB. | |||||||||||||||
getScopedLockAndFlush ( $lockKey, $fname, $timeout) | |||||||||||||||
Acquire a named lock, flush any transaction, and return an RAII style unlocker object. | |||||||||||||||
getServer () | |||||||||||||||
Get the hostname or IP address of the server. | |||||||||||||||
getServerInfo () | |||||||||||||||
Get a human-readable string describing the current software version. | |||||||||||||||
getServerName () | |||||||||||||||
Get the readable name for the server. | |||||||||||||||
getSessionLagStatus () | |||||||||||||||
Get a cached estimate of the seconds of replication lag on this database server, using the estimate obtained at the start of the current transaction if one is active. | |||||||||||||||
getTableAliases () | |||||||||||||||
Return current table aliases. | |||||||||||||||
getTopologyBasedServerId () | |||||||||||||||
Get a non-recycled ID that uniquely identifies this server within the replication topology. | |||||||||||||||
getTopologyRole () | |||||||||||||||
Get the replication topology role of this server. | |||||||||||||||
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, $fname=__METHOD__) | |||||||||||||||
Determines if a given index is unique. | |||||||||||||||
initConnection () | |||||||||||||||
Initialize the connection to the database over the wire (or to local files) | |||||||||||||||
insert ( $table, $rows, $fname=__METHOD__, $options=[]) | |||||||||||||||
Insert row(s) into a table, in the provided order. | |||||||||||||||
insertSelect ( $destTable, $srcTable, $varMap, $conds, $fname=__METHOD__, $insertOptions=[], $selectOptions=[], $selectJoinConds=[]) | |||||||||||||||
INSERT SELECT wrapper. | |||||||||||||||
isOpen () | |||||||||||||||
isQuotedIdentifier ( $name) | |||||||||||||||
isReadOnly () | |||||||||||||||
Check if this DB server is marked as read-only according to load balancer info. | |||||||||||||||
lastDoneWrites () | |||||||||||||||
Get the last time the connection may have been used for a write query. | |||||||||||||||
limitResult ( $sql, $limit, $offset=false) | |||||||||||||||
Construct a LIMIT query with optional offset. | |||||||||||||||
lock ( $lockName, $method, $timeout=5, $flags=0) | |||||||||||||||
Acquire a named lock.Named locks are not related to transactions
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lockForUpdate ( $table, $conds='', $fname=__METHOD__, $options=[], $join_conds=[]) | |||||||||||||||
Lock all rows meeting the given conditions/options FOR UPDATE. | |||||||||||||||
lockIsFree ( $lockName, $method) | |||||||||||||||
Check to see if a named lock is not locked by any thread (non-blocking)
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makeList (array $a, $mode=self::LIST_COMMA) | |||||||||||||||
Makes an encoded list of strings from an array. | |||||||||||||||
makeWhereFrom2d ( $data, $baseKey, $subKey) | |||||||||||||||
Build a "OR" condition with pairs from a two-dimensional array. | |||||||||||||||
newDeleteQueryBuilder () | |||||||||||||||
Get a DeleteQueryBuilder bound to this connection. | |||||||||||||||
newInsertQueryBuilder () | |||||||||||||||
Get a InsertQueryBuilder bound to this connection. | |||||||||||||||
newReplaceQueryBuilder () | |||||||||||||||
Get a ReplaceQueryBuilder bound to this connection. | |||||||||||||||
newSelectQueryBuilder () | |||||||||||||||
Get a SelectQueryBuilder bound to this connection. | |||||||||||||||
newUnionQueryBuilder () | |||||||||||||||
Get a UnionQueryBuilder bound to this connection. | |||||||||||||||
newUpdateQueryBuilder () | |||||||||||||||
Get an UpdateQueryBuilder bound to this connection. | |||||||||||||||
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 when the current transaction commits or now if there is none. | |||||||||||||||
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 when the current transaction commits or rolls back. | |||||||||||||||
pendingWriteAndCallbackCallers () | |||||||||||||||
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. | |||||||||||||||
ping () | |||||||||||||||
Ping the server and try to reconnect if it there is no connection. | |||||||||||||||
primaryPosWait (DBPrimaryPos $pos, $timeout) | |||||||||||||||
Wait for the replica server to catch up to a given primary server position. | |||||||||||||||
query ( $sql, $fname=__METHOD__, $flags=0) | |||||||||||||||
Run an SQL query statement 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 ( $trigger, array &$errors=[]) | |||||||||||||||
Consume and run any "on transaction idle/resolution" callbacks. | |||||||||||||||
runOnTransactionPreCommitCallbacks () | |||||||||||||||
runTransactionListenerCallbacks ( $trigger, array &$errors=[]) | |||||||||||||||
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. | |||||||||||||||
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. | |||||||||||||||
sessionLocksPending () | |||||||||||||||
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. | |||||||||||||||
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. | |||||||||||||||
setSchemaVars ( $vars) | |||||||||||||||
Set schema variables to be used when streaming commands from SQL files or stdin. | |||||||||||||||
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. | |||||||||||||||
setTransactionManager (TransactionManager $transactionManager) | |||||||||||||||
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 (string $name, $format='quoted') | |||||||||||||||
Format a table name ready for use in constructing an SQL query. | |||||||||||||||
tableNames (... $tables) | |||||||||||||||
Fetch a number of table names into an associative array. | |||||||||||||||
tableNamesN (... $tables) | |||||||||||||||
Fetch a number of table names into a zero-indexed numerical array. | |||||||||||||||
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. | |||||||||||||||
truncate ( $tables, $fname=__METHOD__) | |||||||||||||||
Delete all data in a table(s) and reset any sequences owned by that table(s) | |||||||||||||||
truncateTable ( $table, $fname=__METHOD__) | |||||||||||||||
Delete all data in a table and reset any sequences owned by that table. | |||||||||||||||
trxLevel () | |||||||||||||||
Gets the current transaction level. | |||||||||||||||
trxStatus () | |||||||||||||||
trxTimestamp () | |||||||||||||||
Get the UNIX timestamp of the time that the transaction was established. | |||||||||||||||
unionQueries ( $sqls, $all, $options=[]) | |||||||||||||||
Construct a UNION query. | |||||||||||||||
unionSupportsOrderAndLimit () | |||||||||||||||
Determine if the RDBMS supports ORDER BY and LIMIT for separate subqueries within UNION. | |||||||||||||||
unlock ( $lockName, $method) | |||||||||||||||
Release a lock.Named locks are not related to transactions
| |||||||||||||||
update ( $table, $set, $conds, $fname=__METHOD__, $options=[]) | |||||||||||||||
Update all rows in a table that match a given condition. | |||||||||||||||
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\Platform\ISQLPlatform | |||||||||||||||
buildSubString ( $input, $startPosition, $length=null) | |||||||||||||||
Build a SUBSTRING function. | |||||||||||||||
Protected Member Functions | |
checkInsertWarnings (Query $query, $fname) | |
Check for warnings after performing an INSERT query, and throw exceptions if necessary. | |
closeConnection () | |
Closes underlying database connection. | |
doFlushSession ( $fname) | |
Reset the server-side session state for named locks and table locks. | |
doHandleSessionLossPreconnect () | |
Reset any additional subclass trx* and session* fields. | |
doSelectDomain (DatabaseDomain $domain) | |
doSingleStatementQuery (string $sql) | |
Run a query and return a QueryStatus instance with the query result information. | |
isConnectionError ( $errno) | |
Do not use this method outside of Database/DBError classes. | |
isInsertSelectSafe (array $insertOptions, array $selectOptions) | |
isKnownStatementRollbackError ( $errno) | |
isQueryTimeoutError ( $errno) | |
Checks whether the cause of the error is detected to be a timeout. | |
lastInsertId () | |
Get a row ID from the last insert statement to implicitly assign one within the session. | |
open ( $server, $user, $password, $db, $schema, $tablePrefix) | |
Open a new connection to the database (closing any existing one) | |
Protected Member Functions inherited from Wikimedia\Rdbms\Database | |
assertHasConnectionHandle () | |
Make sure there is an open connection handle (alive or not) | |
commenceCriticalSection (string $fname) | |
Demark the start of a critical section of session/transaction state changes. | |
completeCriticalSection (string $fname, ?CriticalSectionScope $csm, Throwable $trxError=null) | |
Demark the completion of a critical section of session/transaction state changes. | |
doBegin ( $fname) | |
Issues the BEGIN command to the database server. | |
doInsertSelectNative ( $destTable, $srcTable, array $varMap, $conds, $fname, array $insertOptions, array $selectOptions, $selectJoinConds) | |
Native server-side implementation of insertSelect() for situations where we don't want to select everything into memory. | |
executeQuery ( $sql, $fname, $flags) | |
Execute a query without enforcing public (non-Database) caller restrictions. | |
getBindingHandle () | |
Get the underlying binding connection handle. | |
getInsertIdColumnForUpsert ( $table) | |
getLastPHPError () | |
getLogContext (array $extras=[]) | |
Create a log context to pass to PSR-3 logger functions. | |
getReadOnlyReason () | |
getTransactionRoundId () | |
getValueTypesForWithClause ( $table) | |
installErrorHandler () | |
Set a custom error handler for logging errors during database connection. | |
newExceptionAfterConnectError ( $error) | |
registerTempTables (Query $query) | |
Register creation and dropping of temporary tables. | |
replaceLostConnection ( $lastErrno, $fname) | |
Close any existing (dead) database connection and open a new connection. | |
restoreErrorHandler () | |
Restore the previous error handler and return the last PHP error for this DB. | |
Protected Attributes | |
SQLPlatform | $platform |
MysqlReplicationReporter | $replicationReporter |
Protected Attributes inherited from Wikimedia\Rdbms\Database | |
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< string, mixed > | $connectionParams |
Connection parameters used by initConnection() and open() | |
string[] int[] float[] | $connectionVariables |
SQL variables values to use for all new connections. | |
int null | $connectTimeout |
Maximum seconds to wait on connection attempts. | |
CriticalSectionProvider null | $csProvider |
DatabaseDomain | $currentDomain |
string false | $delimiter = ';' |
Current SQL query delimiter. | |
callable | $deprecationLogger |
Deprecation logging callback. | |
callable | $errorLogger |
Error logging callback. | |
DatabaseFlags | $flagsHolder |
string | $lastConnectError = '' |
Last error during connection; empty string if none. | |
int null | $lastEmulatedAffectedRows |
Affected row count for the last query method call; null if unspecified. | |
int null | $lastEmulatedInsertId |
Insert (row) ID for the last query method call; null if unspecified. | |
int | $lastQueryAffectedRows = 0 |
Affected row count for the last statement to query() | |
int null | $lastQueryInsertId |
Insert (row) ID for the last statement to query() (null if not supported) | |
array | $lbInfo = [] |
Current LoadBalancer tracking information. | |
LoggerInterface | $logger |
int | $nonNativeInsertSelectBatchSize |
Row batch size to use for emulated INSERT SELECT queries. | |
SQLPlatform | $platform |
callable null | $profiler |
int null | $receiveTimeout |
Maximum seconds to wait on receiving query results. | |
ReplicationReporter | $replicationReporter |
string null | $serverName |
Readable name or host/IP of the database server. | |
array< string, array > | $sessionNamedLocks = [] |
Map of (name => (UNIX time,trx ID)) for current lock() mutexes. | |
array< string, TempTableInfo > | $sessionTempTables = [] |
Current temp tables. | |
bool | $ssl |
Whether to use SSL connections. | |
bool | $strictWarnings |
Whether to check for warnings. | |
const | CONN_HOST = 'host' |
Hostname or IP address to use on all connections. | |
const | CONN_INITIAL_DB = 'dbname' |
Database name to use on initial connection. | |
const | CONN_INITIAL_SCHEMA = 'schema' |
Schema name to use on initial connection. | |
const | CONN_INITIAL_TABLE_PREFIX = 'tablePrefix' |
Table prefix to use on initial connection. | |
const | CONN_PASSWORD = 'password' |
Database server password to use on all connections. | |
const | CONN_USER = 'user' |
Database server username to use on all connections. | |
const | DROPPED_CONN_BLAME_THRESHOLD_SEC = 3.0 |
Assume that queries taking this long to yield connection loss errors are at fault. | |
const | ERR_ABORT_QUERY = 2 |
Abort query (no retries) due to a statement rollback (session/transaction intact) | |
const | ERR_ABORT_SESSION = 8 |
Abort and reset session due to server-side session-level state loss (locks, temp tables) | |
const | ERR_ABORT_TRX = 4 |
Abort any current transaction, by rolling it back, due to an error during the query. | |
const | ERR_NONE = 0 |
No errors occurred during the query. | |
const | ERR_RETRY_QUERY = 1 |
Retry query due to a connection loss detected while sending the query (session intact) | |
Additional Inherited Members | |
Static Public Member Functions inherited from Wikimedia\Rdbms\Database | |
static | getAttributes () |
static | getCacheSetOptions (?IReadableDatabase ... $dbs) |
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. | |
Public Attributes inherited from Wikimedia\Rdbms\IDatabase | |
const | LOCK_TIMESTAMP = 1 |
Flag to return the lock acquisition timestamp (null if not acquired) | |
Public Attributes inherited from Wikimedia\Rdbms\Platform\ISQLPlatform | |
const | QUERY_PSEUDO_PERMANENT = 2 |
Track a TEMPORARY table CREATE as if it was for a permanent table (for testing) | |
Public Attributes inherited from Wikimedia\Rdbms\Database\IDatabaseFlags | |
const | DBO_COMPRESS = 512 |
Enable compression in connection protocol. | |
const | DBO_DDLMODE = 128 |
Schema file mode; was used by Oracle. | |
const | DBO_DEBUG = 1 |
Enable debug logging of all SQL queries. | |
const | DBO_DEFAULT = 16 |
Join load balancer transaction rounds (which control DBO_TRX) in non-CLI mode. | |
const | DBO_GAUGE = 1024 |
Optimize connection for guaging server state (e.g. | |
const | DBO_IGNORE = 4 |
Unused since 1.31. | |
const | DBO_NOBUFFER = 2 |
Unused since 1.34. | |
const | DBO_PERSISTENT = 32 |
Use DB persistent connections if possible. | |
const | DBO_SSL = 256 |
Enable SSL/TLS in connection protocol. | |
const | DBO_SYSDBA = 64 |
DBA session mode; was used by Oracle. | |
const | DBO_TRX = 8 |
Automatically start a transaction before running a query if none is active. | |
const | REMEMBER_NOTHING = '' |
Do not remember the prior flags. | |
const | REMEMBER_PRIOR = 'remember' |
Remember the prior flags. | |
const | RESTORE_INITIAL = 'initial' |
Restore to the initial flag state. | |
const | RESTORE_PRIOR = 'prior' |
Restore to the prior flag state. | |
Definition at line 42 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::__construct | ( | array | $params | ) |
Additional $params include:
heartbeat
table, e.g. ['shard' => 's1']. By default, the row used is the newest row having a server_id matching that of the immediate replication source server for the given replica.array | $params |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 87 of file DatabaseMySQL.php.
References $params.
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protected |
Check for warnings after performing an INSERT query, and throw exceptions if necessary.
Query | $query | |
string | $fname |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 256 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Query\getSQL(), and Wikimedia\Rdbms\Database\reportQueryError().
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protected |
Closes underlying database connection.
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 854 of file DatabaseMySQL.php.
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protected |
Reset the server-side session state for named locks and table locks.
Connection and query errors will be suppressed and logged
string | $fname |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 544 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\addQuotes(), Wikimedia\Rdbms\Database\executeQuery(), and Wikimedia\Rdbms\Database\reportQueryError().
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protected |
Reset any additional subclass trx* and session* fields.
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 862 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::doLock | ( | string | $lockName, |
string | $method, | ||
int | $timeout ) |
string | $lockName | |
string | $method | |
int | $timeout |
DBError |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 524 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query().
Wikimedia\Rdbms\DatabaseMySQL::doLockIsFree | ( | string | $lockName, |
string | $method ) |
string | $lockName | |
string | $method |
DBError |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 516 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query().
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protected |
DatabaseDomain | $domain |
DBConnectionError | |
DBError |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 178 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\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().
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protected |
Run a query and return a QueryStatus instance with the query result information.
This is meant to handle the basic command of actually sending a query to the server via the driver. No implicit transaction, reconnection, nor retry logic should happen here. The higher level query() method is designed to handle those sorts of concerns. This method should not trigger such higher level methods.
The lastError() and lastErrno() methods should meaningfully reflect what error, if any, occurred during the last call to this method. Methods like executeQuery(), query(), select(), insert(), update(), delete(), and upsert() implement their calls to doQuery() such that an immediately subsequent call to lastError()/lastErrno() meaningfully reflects any error that occurred during that public query method call.
For SELECT queries, the result field contains either:
For non-SELECT queries, the result field contains either:
string | $sql | Single-statement SQL query |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 751 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::doUnlock | ( | string | $lockName, |
string | $method ) |
string | $lockName | |
string | $method |
DBError |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 532 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query().
Wikimedia\Rdbms\DatabaseMySQL::duplicateTableStructure | ( | $oldName, | |
$newName, | |||
$temporary = false, | |||
$fname = __METHOD__ ) |
string | $oldName | |
string | $newName | |
bool | $temporary | |
string | $fname |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 654 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\addIdentifierQuotes(), and Wikimedia\Rdbms\Database\query().
Wikimedia\Rdbms\DatabaseMySQL::estimateRowCount | ( | $tables, | |
$var = '*', | |||
$conds = '', | |||
$fname = __METHOD__, | |||
$options = [], | |||
$join_conds = [] ) |
Estimate rows in dataset Returns estimated count, based on EXPLAIN output Takes same arguments as Database::select()
string | array | $tables | |
string | array | $var | |
string | array | $conds | |
string | $fname | |
string | array | $options | |
array | $join_conds |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 298 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\select().
Wikimedia\Rdbms\DatabaseMySQL::fieldInfo | ( | $table, | |
$field ) |
string | $table | |
string | $field |
Implements Wikimedia\Rdbms\IMaintainableDatabase.
Definition at line 359 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().
Wikimedia\Rdbms\DatabaseMySQL::getServerVersion | ( | ) |
Implements Wikimedia\Rdbms\IReadableDatabase.
Definition at line 463 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::getSoftwareLink | ( | ) |
Implements Wikimedia\Rdbms\IReadableDatabase.
Definition at line 429 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::getType | ( | ) |
Implements Wikimedia\Rdbms\IReadableDatabase.
Definition at line 115 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::indexInfo | ( | $table, | |
$index, | |||
$fname = __METHOD__ ) |
Get information about an index into an object Returns false if the index does not exist.
string | $table | |
string | $index | |
string | $fname |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 383 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().
Wikimedia\Rdbms\DatabaseMySQL::insertId | ( | ) |
Get the sequence-based ID assigned by the last query method call.
This method should only be called when all the following hold true:
In all other cases, the return value is unspecified.
When the query method is either insert() with "IGNORE", upsert(), or insertSelect(), callers should first check affectedRows() before calling this method, making sure that the query method actually created a row. Otherwise, an ID from a previous insert might be incorrectly assumed to belong to last insert.
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 867 of file DatabaseMySQL.php.
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protected |
Do not use this method outside of Database/DBError classes.
int | string | $errno |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 623 of file DatabaseMySQL.php.
|
protected |
array | $insertOptions | |
array | $selectOptions |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 233 of file DatabaseMySQL.php.
|
protected |
int | string | $errno |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 637 of file DatabaseMySQL.php.
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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.
int | string | $errno | Error number |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 630 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::lastErrno | ( | ) |
Implements Wikimedia\Rdbms\IReadableDatabase.
Definition at line 880 of file DatabaseMySQL.php.
Referenced by Wikimedia\Rdbms\DatabaseMySQL\wasDeadlock(), and Wikimedia\Rdbms\DatabaseMySQL\wasReadOnlyError().
Wikimedia\Rdbms\DatabaseMySQL::lastError | ( | ) |
Implements Wikimedia\Rdbms\IReadableDatabase.
Definition at line 219 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\$lastConnectError.
Referenced by Wikimedia\Rdbms\DatabaseMySQL\open(), and Wikimedia\Rdbms\DatabaseMySQL\wasReadOnlyError().
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protected |
Get a row ID from the last insert statement to implicitly assign one within the session.
If the statement involved assigning sequence IDs to multiple rows, then the return value will be any one of those values (database-specific). If the statement was an "UPSERT" and some existing rows were updated, then the result will either reflect only IDs of created rows or it will reflect IDs of both created and updated rows (this is database-specific).
The result is unspecified if the statement gave an error.
DBError |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 858 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::listTables | ( | $prefix = null, | |
$fname = __METHOD__ ) |
List all tables on the database.
string | null | $prefix | Only show tables with this prefix, e.g. mw_ |
string | $fname | Calling function name |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 678 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\anyString(), Wikimedia\Rdbms\Database\expr(), Wikimedia\Rdbms\IExpression\LIKE, and Wikimedia\Rdbms\Database\newSelectQueryBuilder().
Wikimedia\Rdbms\DatabaseMySQL::listViews | ( | $prefix = null, | |
$fname = __METHOD__ ) |
Lists VIEWs in the database.
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 |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 706 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\anyString(), Wikimedia\Rdbms\Database\expr(), Wikimedia\Rdbms\IExpression\LIKE, Wikimedia\Rdbms\Database\newSelectQueryBuilder(), and wfDeprecated().
Wikimedia\Rdbms\DatabaseMySQL::namedLocksEnqueue | ( | ) |
Check to see if a named lock used by lock() use blocking queues.
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 540 of file DatabaseMySQL.php.
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protected |
Open a new connection to the database (closing any existing one)
string | null | $server | Server host/address and optional port { |
string | null | $user | User name { |
string | null | $password | User password { |
string | null | $db | Database name |
string | null | $schema | Database schema name |
string | $tablePrefix |
DBConnectionError |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 119 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\addQuotes(), Wikimedia\Rdbms\Database\close(), Wikimedia\Rdbms\Database\executeQuery(), Wikimedia\Rdbms\Database\installErrorHandler(), Wikimedia\Rdbms\DatabaseMySQL\lastError(), Wikimedia\Rdbms\Database\newExceptionAfterConnectError(), Wikimedia\Rdbms\Database\reportQueryError(), and Wikimedia\Rdbms\Database\restoreErrorHandler().
Wikimedia\Rdbms\DatabaseMySQL::replace | ( | $table, | |
$uniqueKeys, | |||
$rows, | |||
$fname = __METHOD__ ) |
Insert row(s) into a table, in the provided order, while deleting conflicting rows.
Conflicts are determined by the provided unique indexes. Note that it is possible for the provided rows to conflict even among themselves; it is preferable for the caller to de-duplicate such input beforehand.
Note some important implications of the deletion semantics:
This operation will be seen by affectedRows()/insertId() as one query statement, regardless of how many statements are actually sent by the class implementation.
string | $table | The table name |
string | string[] | string[][] | $uniqueKeys | Column name or non-empty list of column name lists that define all applicable unique keys on the table. There must only be one such key. Each unique key on the table is "applicable" unless either:
|
array | array[] | $rows | Row(s) to insert, in the form of either:
|
string | $fname | Calling function name (use METHOD) for logs/profiling |
DBError | If an error occurs, { |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 587 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().
Wikimedia\Rdbms\DatabaseMySQL::selectSQLText | ( | $table, | |
$vars, | |||
$conds = '', | |||
$fname = __METHOD__, | |||
$options = [], | |||
$join_conds = [] ) |
Take the same arguments as IDatabase::select() and return the SQL it would use.
This can be useful for making UNION queries, where the SQL text of each query is needed. In general, however, callers outside of Database classes should just use select().
string | array | $table | Table name(s) |
string | array | $vars | Field names |
string | array | $conds | Conditions |
string | $fname | Caller function name |
string | array | $options | Query options |
string | array | $join_conds | Join conditions |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 722 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::serverIsReadOnly | ( | ) |
DBError | If an error occurs, { |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 416 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query().
Wikimedia\Rdbms\DatabaseMySQL::setSessionOptions | ( | array | $options | ) |
array | $options |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 479 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\query().
Wikimedia\Rdbms\DatabaseMySQL::streamStatementEnd | ( | & | $sql, |
& | $newLine ) |
string | &$sql | |
string | &$newLine |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 507 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::strencode | ( | $s | ) |
string | $s |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 412 of file DatabaseMySQL.php.
Wikimedia\Rdbms\DatabaseMySQL::tableExists | ( | $table, | |
$fname = __METHOD__ ) |
Query whether a given table exists.
string | $table | |
string | $fname |
DBError | If an error occurs, { |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 329 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\newSelectQueryBuilder().
Wikimedia\Rdbms\DatabaseMySQL::upsert | ( | $table, | |
array | $rows, | ||
$uniqueKeys, | |||
array | $set, | ||
$fname = __METHOD__ ) |
Upsert row(s) into a table, in the provided order, while updating conflicting rows.
Conflicts are determined by the provided unique indexes. Note that it is possible for the provided rows to conflict even among themselves; it is preferable for the caller to de-duplicate such input beforehand.
This operation will be seen by affectedRows()/insertId() as one query statement, regardless of how many statements are actually sent by the class implementation.
string | $table | Table name |
array | array[] | $rows | Row(s) to insert, in the form of either:
|
string | string[] | string[][] | $uniqueKeys | Column name or non-empty list of column name lists that define all applicable unique keys on the table. There must only be one such key. Each unique key on the table is "applicable" unless either:
|
array | $set | Combination map/list where each string-keyed entry maps a column to a literal assigned value and each integer-keyed value is a SQL assignment expression of the form "<unquoted alphanumeric column> = <SQL expression>". The (column => value) entries are convenient due to automatic value quoting and conversion of null to NULL. The SQL assignment entries are useful for updates like "column = column + X". All of the assignments have no defined execution order, so callers should make sure that they not depend on each other. Do not modify AUTOINCREMENT or UUID columns in assignments, even if they are just "secondary" unique keys. For multi-row upserts, use buildExcludedValue() to reference the value of a column from the corresponding row in $rows that conflicts with the current row. |
string | $fname | Calling function name (use METHOD) for logs/profiling |
DBError | If an error occurs, { |
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 563 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\Database\makeList(), Wikimedia\Rdbms\Database\query(), and Wikimedia\Rdbms\Database\tableName().
Wikimedia\Rdbms\DatabaseMySQL::wasDeadlock | ( | ) |
Determines if the last failure was due to a deadlock.
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 609 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\DatabaseMySQL\lastErrno().
Wikimedia\Rdbms\DatabaseMySQL::wasReadOnlyError | ( | ) |
Determines if the last failure was due to the database being read-only.
Reimplemented from Wikimedia\Rdbms\Database.
Definition at line 618 of file DatabaseMySQL.php.
References Wikimedia\Rdbms\DatabaseMySQL\lastErrno(), and Wikimedia\Rdbms\DatabaseMySQL\lastError().
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protected |
Definition at line 61 of file DatabaseMySQL.php.
|
protected |
Definition at line 64 of file DatabaseMySQL.php.