class DeltaHistoryManager extends DeltaLogging
This class keeps tracks of the version of commits and their timestamps for a Delta table to help with operations like describing the history of a table.
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- new DeltaHistoryManager(deltaLog: DeltaLog, maxKeysPerList: Int = 1000)
- deltaLog
The transaction log of this table
- maxKeysPerList
How many commits to list when performing a parallel search. Exposed for tests. Currently set to
1000, which is the maximum keys returned by S3 per list call. Azure can return5000, therefore we choose 1000.
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- def checkVersionExists(version: Long, catalogTableOpt: Option[CatalogTable], mustBeRecreatable: Boolean = true, allowOutOfRange: Boolean = false): Unit
Check whether the given version exists.
Check whether the given version exists.
- mustBeRecreatable
whether the snapshot of this version needs to be recreated.
- allowOutOfRange
whether to allow the version is exceeding the latest snapshot version.
- def clone(): AnyRef
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- def deltaAssert(check: => Boolean, name: String, msg: String, deltaLog: DeltaLog = null, data: AnyRef = null, path: Option[Path] = None): Unit
Helper method to check invariants in Delta code.
Helper method to check invariants in Delta code. Fails when running in tests, records a delta assertion event and logs a warning otherwise.
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- DeltaLogging
- final def eq(arg0: AnyRef): Boolean
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- def getActiveCommitAtTime(timestamp: Timestamp, catalogTableOpt: Option[CatalogTable], canReturnLastCommit: Boolean, mustBeRecreatable: Boolean = true, canReturnEarliestCommit: Boolean = false): Commit
Returns the latest commit that happened at or before
time.Returns the latest commit that happened at or before
time.- timestamp
The timestamp to search for
- canReturnLastCommit
Whether we can return the latest version of the table if the provided timestamp is after the latest commit
- mustBeRecreatable
Whether the state at the given commit should be recreatable
- canReturnEarliestCommit
Whether we can return the earliest commit if no such commit exists.
- final def getClass(): Class[_ <: AnyRef]
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- @IntrinsicCandidate() @native()
- def getCommitFromNonICTRange(start: Long, end: Long, time: Long): Commit
Returns the latest commit that happened at or before
timein the range[start, end).Returns the latest commit that happened at or before
timein the range[start, end). All the commits in the range[start, end)are assumed to not have inCommitTimestamps. If no such commit exists, the earliest commit is returned. - def getCommonTags(deltaLog: DeltaLog, tahoeId: String): Map[TagDefinition, String]
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- DeltaLogging
- def getErrorData(e: Throwable): Map[String, Any]
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- DeltaLogging
- def getHistory(start: Long, end: Option[Long], catalogTableOpt: Option[CatalogTable] = None): Seq[DeltaHistory]
Get the commit information of the Delta table from commit
[start, end]in reverse chronological order.Get the commit information of the Delta table from commit
[start, end]in reverse chronological order. IfendisNone, we return all commits from start to now.- start
The start of the commit range, inclusive.
- end
The end of the commit range, inclusive.
- catalogTableOpt
the catalog table associated with the Delta table.
- def getHistory(limitOpt: Option[Int]): Seq[DeltaHistory]
Returns the information of the latest
limitcommits made to this table in reverse chronological order.Returns the information of the latest
limitcommits made to this table in reverse chronological order. This version does not take in a catalog table and should only be used in testing. - def getHistory(limitOpt: Option[Int], catalogTableOpt: Option[CatalogTable]): Seq[DeltaHistory]
Returns the information of the latest
limitcommits made to this table in reverse chronological order. - def hashCode(): Int
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- def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
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- def recordDeltaEvent(deltaLog: DeltaLog, opType: String, tags: Map[TagDefinition, String] = Map.empty, data: AnyRef = null, path: Option[Path] = None): Unit
Used to record the occurrence of a single event or report detailed, operation specific statistics.
Used to record the occurrence of a single event or report detailed, operation specific statistics.
- path
Used to log the path of the delta table when
deltaLogis null.
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- DeltaLogging
- def recordDeltaOperation[A](deltaLog: DeltaLog, opType: String, tags: Map[TagDefinition, String] = Map.empty)(thunk: => A): A
Used to report the duration as well as the success or failure of an operation on a
deltaLog.Used to report the duration as well as the success or failure of an operation on a
deltaLog.- Attributes
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- DeltaLogging
- def recordDeltaOperationForTablePath[A](tablePath: String, opType: String, tags: Map[TagDefinition, String] = Map.empty)(thunk: => A): A
Used to report the duration as well as the success or failure of an operation on a
tahoePath.Used to report the duration as well as the success or failure of an operation on a
tahoePath.- Attributes
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- def recordEvent(metric: MetricDefinition, additionalTags: Map[TagDefinition, String] = Map.empty, blob: String = null, trimBlob: Boolean = true): Unit
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- def recordFrameProfile[T](group: String, name: String)(thunk: => T): T
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- def recordOperation[S](opType: OpType, opTarget: String = null, extraTags: Map[TagDefinition, String], isSynchronous: Boolean = true, alwaysRecordStats: Boolean = false, allowAuthTags: Boolean = false, killJvmIfStuck: Boolean = false, outputMetric: MetricDefinition = METRIC_OPERATION_DURATION, silent: Boolean = true)(thunk: => S): S
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- def recordProductEvent(metric: MetricDefinition with CentralizableMetric, additionalTags: Map[TagDefinition, String] = Map.empty, blob: String = null, trimBlob: Boolean = true): Unit
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- def recordProductUsage(metric: MetricDefinition with CentralizableMetric, quantity: Double, additionalTags: Map[TagDefinition, String] = Map.empty, blob: String = null, forceSample: Boolean = false, trimBlob: Boolean = true, silent: Boolean = false): Unit
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- def recordUsage(metric: MetricDefinition, quantity: Double, additionalTags: Map[TagDefinition, String] = Map.empty, blob: String = null, forceSample: Boolean = false, trimBlob: Boolean = true, silent: Boolean = false): Unit
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- def withLogContext(context: Map[String, String])(body: => Unit): Unit
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- def withStatusCode[T](statusCode: String, defaultMessage: String, data: Map[String, Any] = Map.empty)(body: => T): T
Report a log to indicate some command is running.
Report a log to indicate some command is running.
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- Deprecated
(Since version 9)