derby.language.logQueryPlan

Function

When this property is set to true, Derby writes the query plan information into the derby.log file for all executed queries.

This property is useful for debugging to know what query plan was chosen by the optimizer.

Example

derby.language.logQueryPlan=true

Default

False.

Dynamic or static

static

Related reference
derby.authentication.ldap.searchAuthDN
derby.authentication.ldap.searchAuthPW
derby.authentication.ldap.searchBase
derby.authentication.ldap.searchFilter
derby.authentication.provider
derby.authentication.server
derby.connection.requireAuthentication
derby.database.defaultConnectionMode
derby.database.forceDatabaseLock
derby.database.fullAccessUsers
derby.database.noAutoBoot
derby.database.propertiesOnly
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derby.database.sqlAuthorization
derby.infolog.append
derby.jdbc.xaTransactionTimeout
derby.language.logStatementText
derby.locks.deadlockTimeout
derby.locks.deadlockTrace
derby.locks.escalationThreshold
derby.locks.monitor
derby.locks.waitTimeout
derby.storage.initialPages
derby.storage.minimumRecordSize
derby.storage.pageCacheSize
derby.storage.pageReservedSpace
derby.storage.pageSize
derby.storage.tempDirectory
derby.stream.error.field
derby.stream.error.file
derby.stream.error.method
derby.stream.error.logSeverityLevel
derby.system.bootAll
derby.system.durability
derby.system.home
derby.user.UserName