org.apache.spark.sql.cassandra

CassandraSQLContext

class CassandraSQLContext extends SQLContext

Allows to execute SQL queries against Cassandra and access results as org.apache.spark.sql.SchemaRDD collections. Predicate pushdown to Cassandra is supported.

Example:

import com.datastax.spark.connector._

val sparkMasterHost = "127.0.0.1"
val cassandraHost = "127.0.0.1"

// Tell Spark the address of one Cassandra node:
val conf = new SparkConf(true).set("spark.cassandra.connection.host", cassandraHost)

// Connect to the Spark cluster:
val sc = new SparkContext("spark://" + sparkMasterHost + ":7077", "example", conf)

// Create CassandraSQLContext:
val cc = new CassandraSQLContext(sc)

// Execute SQL query:
val rdd = cc.sql("SELECT * FROM keyspace.table ...")
Linear Supertypes
SQLContext, Serializable, Serializable, UDFRegistration, ExpressionConversions, CacheManager, SQLConf, Logging, AnyRef, Any
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Inherited
  1. CassandraSQLContext
  2. SQLContext
  3. Serializable
  4. Serializable
  5. UDFRegistration
  6. ExpressionConversions
  7. CacheManager
  8. SQLConf
  9. Logging
  10. AnyRef
  11. Any
Implicitly
  1. by any2stringadd
  2. by any2stringfmt
  3. by any2ArrowAssoc
  4. by any2Ensuring
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  1. Public
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Instance Constructors

  1. new CassandraSQLContext(sc: SparkContext)

Type Members

  1. implicit class DslAttribute extends AnyRef

    Definition Classes
    ExpressionConversions

  2. implicit class DslExpression extends ImplicitOperators

    Definition Classes
    ExpressionConversions

  3. implicit class DslString extends ImplicitOperators

    Definition Classes
    ExpressionConversions

  4. implicit class DslSymbol extends ImplicitAttribute

    Definition Classes
    ExpressionConversions

  5. abstract class ImplicitAttribute extends ImplicitOperators

    Definition Classes
    ExpressionConversions

  6. abstract class QueryExecution extends AnyRef

    Attributes
    protected
    Definition Classes
    SQLContext
    Annotations
    @DeveloperApi()

  7. class SparkPlanner extends SparkStrategies

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd

  5. def ->[B](y: B): (CassandraSQLContext, B)

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to ArrowAssoc[CassandraSQLContext] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

  6. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  7. final def ==(arg0: Any): Boolean

    Definition Classes
    Any

  8. def abs(e: Expression): Abs

    Definition Classes
    ExpressionConversions

  9. lazy val analyzer: Analyzer

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  10. def applySchema(rowRDD: RDD[Row], schema: StructType): SchemaRDD

    Definition Classes
    SQLContext
    Annotations
    @DeveloperApi()

  11. def approxCountDistinct(e: Expression, rsd: Double): ApproxCountDistinct

    Definition Classes
    ExpressionConversions

  12. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  13. def avg(e: Expression): Average

    Definition Classes
    ExpressionConversions

  14. implicit def baseRelationToSchemaRDD(baseRelation: BaseRelation): SchemaRDD

    Definition Classes
    SQLContext

  15. implicit def bigDecimalToLiteral(d: BigDecimal): Literal

    Definition Classes
    ExpressionConversions

  16. implicit def binaryToLiteral(a: Array[Byte]): Literal

    Definition Classes
    ExpressionConversions

  17. implicit def booleanToLiteral(b: Boolean): Literal

    Definition Classes
    ExpressionConversions

  18. implicit def byteToLiteral(b: Byte): Literal

    Definition Classes
    ExpressionConversions

  19. def cacheTable(tableName: String): Unit

    Definition Classes
    CacheManager

  20. def cassandraSql(cassandraQuery: String): SchemaRDD

    Executes SQL query against Cassandra and returns SchemaRDD representing the result.

  21. lazy val catalog: CassandraCatalog with OverrideCatalog

    A catalyst metadata catalog that points to Cassandra.

    A catalyst metadata catalog that points to Cassandra.

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    CassandraSQLContext → SQLContext

  22. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  23. val conf: SparkConf

  24. def count(e: Expression): Count

    Definition Classes
    ExpressionConversions

  25. def countDistinct(e: Expression*): CountDistinct

    Definition Classes
    ExpressionConversions

  26. def createParquetFile[A <: Product](path: String, allowExisting: Boolean, conf: Configuration)(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[A]): SchemaRDD

    Definition Classes
    SQLContext
    Annotations
    @Experimental()

  27. implicit def createSchemaRDD[A <: Product](rdd: RDD[A])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[A]): SchemaRDD

    Definition Classes
    SQLContext

  28. implicit def dateToLiteral(d: Date): Literal

    Definition Classes
    ExpressionConversions

  29. val ddlParser: DDLParser

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  30. implicit def decimalToLiteral(d: Decimal): Literal

    Definition Classes
    ExpressionConversions

  31. implicit def doubleToLiteral(d: Double): Literal

    Definition Classes
    ExpressionConversions

  32. def dropTempTable(tableName: String): Unit

    Definition Classes
    SQLContext

  33. lazy val emptyResult: RDD[Row]

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  34. def ensuring(cond: (CassandraSQLContext) ⇒ Boolean, msg: ⇒ Any): CassandraSQLContext

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to Ensuring[CassandraSQLContext] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  35. def ensuring(cond: (CassandraSQLContext) ⇒ Boolean): CassandraSQLContext

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to Ensuring[CassandraSQLContext] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  36. def ensuring(cond: Boolean, msg: ⇒ Any): CassandraSQLContext

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to Ensuring[CassandraSQLContext] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  37. def ensuring(cond: Boolean): CassandraSQLContext

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to Ensuring[CassandraSQLContext] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  38. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  39. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  40. def executePlan(plan: LogicalPlan): QueryExecution

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    CassandraSQLContext → SQLContext

  41. def executeSql(sql: String): QueryExecution

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  42. var extraStrategies: Seq[Strategy]

    Definition Classes
    SQLContext

  43. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  44. def first(e: Expression): First

    Definition Classes
    ExpressionConversions

  45. implicit def floatToLiteral(f: Float): Literal

    Definition Classes
    ExpressionConversions

  46. def formatted(fmtstr: String): String

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

  47. lazy val functionRegistry: FunctionRegistry

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  48. def getAllConfs: Map[String, String]

    Definition Classes
    SQLConf

  49. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  50. def getConf(key: String, defaultValue: String): String

    Definition Classes
    SQLConf

  51. def getConf(key: String): String

    Definition Classes
    SQLConf

  52. def getKeyspace: String

    Returns keyspace set previously by setKeyspace or throws IllegalStateException if keyspace has not been set yet.

  53. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  54. implicit def intToLiteral(i: Int): Literal

    Definition Classes
    ExpressionConversions

  55. def isCached(tableName: String): Boolean

    Definition Classes
    CacheManager

  56. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  57. def isTraceEnabled(): Boolean

    Attributes
    protected
    Definition Classes
    Logging

  58. def jsonFile(path: String, samplingRatio: Double): SchemaRDD

    Definition Classes
    SQLContext
    Annotations
    @Experimental()

  59. def jsonFile(path: String, schema: StructType): SchemaRDD

    Definition Classes
    SQLContext
    Annotations
    @Experimental()

  60. def jsonFile(path: String): SchemaRDD

    Definition Classes
    SQLContext

  61. def jsonRDD(json: RDD[String], samplingRatio: Double): SchemaRDD

    Definition Classes
    SQLContext
    Annotations
    @Experimental()

  62. def jsonRDD(json: RDD[String], schema: StructType): SchemaRDD

    Definition Classes
    SQLContext
    Annotations
    @Experimental()

  63. def jsonRDD(json: RDD[String]): SchemaRDD

    Definition Classes
    SQLContext

  64. def last(e: Expression): Last

    Definition Classes
    ExpressionConversions

  65. def log: Logger

    Attributes
    protected
    Definition Classes
    Logging

  66. def logDebug(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  67. def logDebug(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  68. def logError(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  69. def logError(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  70. def logInfo(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  71. def logInfo(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  72. def logName: String

    Attributes
    protected
    Definition Classes
    Logging

  73. def logTrace(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  74. def logTrace(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  75. def logWarning(msg: ⇒ String, throwable: Throwable): Unit

    Attributes
    protected
    Definition Classes
    Logging

  76. def logWarning(msg: ⇒ String): Unit

    Attributes
    protected
    Definition Classes
    Logging

  77. implicit def logicalPlanToSparkQuery(plan: LogicalPlan): SchemaRDD

    Definition Classes
    SQLContext
    Annotations
    @DeveloperApi()

  78. implicit def longToLiteral(l: Long): Literal

    Definition Classes
    ExpressionConversions

  79. def lower(e: Expression): Lower

    Definition Classes
    ExpressionConversions

  80. def max(e: Expression): Max

    Definition Classes
    ExpressionConversions

  81. def min(e: Expression): Min

    Definition Classes
    ExpressionConversions

  82. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  83. final def notify(): Unit

    Definition Classes
    AnyRef

  84. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  85. lazy val optimizer: Optimizer

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  86. def parquetFile(path: String): SchemaRDD

    Definition Classes
    SQLContext

  87. def parseSql(sql: String): LogicalPlan

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  88. val planner: SparkPlanner with CassandraStrategies { val strategies: Seq[org.apache.spark.sql.Strategy] }

    Modified Catalyst planner that does Cassandra-specific predicate pushdown

    Modified Catalyst planner that does Cassandra-specific predicate pushdown

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    CassandraSQLContext → SQLContext

  89. val prepareForExecution: RuleExecutor[SparkPlan] { val batches: List[this.Batch] }

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  90. def registerFunction[T](name: String, func: Function22[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  91. def registerFunction[T](name: String, func: Function21[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  92. def registerFunction[T](name: String, func: Function20[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  93. def registerFunction[T](name: String, func: Function19[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  94. def registerFunction[T](name: String, func: Function18[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  95. def registerFunction[T](name: String, func: Function17[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  96. def registerFunction[T](name: String, func: Function16[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  97. def registerFunction[T](name: String, func: Function15[_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  98. def registerFunction[T](name: String, func: Function14[_, _, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  99. def registerFunction[T](name: String, func: Function13[_, _, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  100. def registerFunction[T](name: String, func: Function12[_, _, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  101. def registerFunction[T](name: String, func: Function11[_, _, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  102. def registerFunction[T](name: String, func: Function10[_, _, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  103. def registerFunction[T](name: String, func: Function9[_, _, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  104. def registerFunction[T](name: String, func: Function8[_, _, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  105. def registerFunction[T](name: String, func: Function7[_, _, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  106. def registerFunction[T](name: String, func: Function6[_, _, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  107. def registerFunction[T](name: String, func: Function5[_, _, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  108. def registerFunction[T](name: String, func: Function4[_, _, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  109. def registerFunction[T](name: String, func: Function3[_, _, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  110. def registerFunction[T](name: String, func: Function2[_, _, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  111. def registerFunction[T](name: String, func: Function1[_, T])(implicit arg0: scala.reflect.api.JavaUniverse.TypeTag[T]): Unit

    Definition Classes
    UDFRegistration

  112. def registerRDDAsTable(rdd: SchemaRDD, tableName: String): Unit

    Definition Classes
    SQLContext

  113. def setConf(key: String, value: String): Unit

    Definition Classes
    SQLConf

  114. def setConf(props: Properties): Unit

    Definition Classes
    SQLConf

  115. def setKeyspace(ks: String): Unit

    Sets default Cassandra keyspace to be used when accessing tables with unqualified names.

  116. val settings: Map[String, String]

    Attributes
    protected[org.apache.spark]
    Definition Classes
    SQLConf

  117. implicit def shortToLiteral(s: Short): Literal

    Definition Classes
    ExpressionConversions

  118. val sparkContext: SparkContext

    Definition Classes
    SQLContext

  119. def sql(cassandraQuery: String): SchemaRDD

    Delegates to cassandraSql

    Delegates to cassandraSql

    Definition Classes
    CassandraSQLContext → SQLContext

  120. val sqlParser: SparkSQLParser

    Attributes
    protected[org.apache.spark.sql]
    Definition Classes
    SQLContext

  121. def sqrt(e: Expression): Sqrt

    Definition Classes
    ExpressionConversions

  122. implicit def stringToLiteral(s: String): Literal

    Definition Classes
    ExpressionConversions

  123. def sum(e: Expression): Sum

    Definition Classes
    ExpressionConversions

  124. def sumDistinct(e: Expression): SumDistinct

    Definition Classes
    ExpressionConversions

  125. implicit def symbolToUnresolvedAttribute(s: Symbol): UnresolvedAttribute

    Definition Classes
    ExpressionConversions

  126. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  127. def table(tableName: String): SchemaRDD

    Definition Classes
    SQLContext

  128. implicit def timestampToLiteral(t: Timestamp): Literal

    Definition Classes
    ExpressionConversions

  129. def toString(): String

    Definition Classes
    AnyRef → Any

  130. def uncacheTable(tableName: String): Unit

    Definition Classes
    CacheManager

  131. def upper(e: Expression): Upper

    Definition Classes
    ExpressionConversions

  132. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  133. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  134. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  135. def →[B](y: B): (CassandraSQLContext, B)

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to ArrowAssoc[CassandraSQLContext] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implicit Value Members

  1. val self: Any

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to StringAdd performed by method any2stringadd in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (cassandraSQLContext: StringAdd).self
    Definition Classes
    StringAdd

  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to StringFormat performed by method any2stringfmt in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (cassandraSQLContext: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: CassandraSQLContext

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to ArrowAssoc[CassandraSQLContext] performed by method any2ArrowAssoc in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (cassandraSQLContext: ArrowAssoc[CassandraSQLContext]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: CassandraSQLContext

    Implicit information
    This member is added by an implicit conversion from CassandraSQLContext to Ensuring[CassandraSQLContext] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (cassandraSQLContext: Ensuring[CassandraSQLContext]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from SQLContext

Inherited from Serializable

Inherited from Serializable

Inherited from UDFRegistration

Inherited from ExpressionConversions

Inherited from CacheManager

Inherited from SQLConf

Inherited from Logging

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from CassandraSQLContext to StringAdd

Inherited by implicit conversion any2stringfmt from CassandraSQLContext to StringFormat

Inherited by implicit conversion any2ArrowAssoc from CassandraSQLContext to ArrowAssoc[CassandraSQLContext]

Inherited by implicit conversion any2Ensuring from CassandraSQLContext to Ensuring[CassandraSQLContext]

Ungrouped