org.apache.hadoop.hive.ql.optimizer.calcite.translator

Class SqlFunctionConverter

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.calcite.translator.SqlFunctionConverter

public class SqlFunctionConverter
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SqlFunctionConverter.CalciteUDAF

Constructor Summary

Constructors

Constructor and Description
SqlFunctionConverter()

Method Summary

Methods

Modifier and Type	Method and Description
static ASTNode	buildAST(org.apache.calcite.sql.SqlOperator op, List<ASTNode> children)
static ASTNode	buildAST(org.apache.calcite.sql.SqlOperator op, List<ASTNode> children, int i) Build AST for flattened Associative expressions ('and', 'or').
static org.apache.calcite.sql.SqlAggFunction	getCalciteAggFn(String hiveUdfName, com.google.common.collect.ImmutableList<org.apache.calcite.rel.type.RelDataType> calciteArgTypes, org.apache.calcite.rel.type.RelDataType calciteRetType)
static org.apache.calcite.sql.SqlOperator	getCalciteFn(String hiveUdfName, com.google.common.collect.ImmutableList<org.apache.calcite.rel.type.RelDataType> calciteArgTypes, org.apache.calcite.rel.type.RelDataType calciteRetType, boolean deterministic)
static org.apache.calcite.sql.SqlOperator	getCalciteOperator(String funcTextName, GenericUDF hiveUDF, com.google.common.collect.ImmutableList<org.apache.calcite.rel.type.RelDataType> calciteArgTypes, org.apache.calcite.rel.type.RelDataType retType)
static GenericUDF	getHiveUDF(org.apache.calcite.sql.SqlOperator op, org.apache.calcite.rel.type.RelDataType dt, int argsLength)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SqlFunctionConverter

public SqlFunctionConverter()

Method Detail

getCalciteOperator

public static org.apache.calcite.sql.SqlOperator getCalciteOperator(String funcTextName,
                                                    GenericUDF hiveUDF,
                                                    com.google.common.collect.ImmutableList<org.apache.calcite.rel.type.RelDataType> calciteArgTypes,
                                                    org.apache.calcite.rel.type.RelDataType retType)
                                                             throws SemanticException

Throws:

SemanticException

getHiveUDF

public static GenericUDF getHiveUDF(org.apache.calcite.sql.SqlOperator op,
                    org.apache.calcite.rel.type.RelDataType dt,
                    int argsLength)

buildAST

public static ASTNode buildAST(org.apache.calcite.sql.SqlOperator op,
               List<ASTNode> children)

buildAST

public static ASTNode buildAST(org.apache.calcite.sql.SqlOperator op,
               List<ASTNode> children,
               int i)

Build AST for flattened Associative expressions ('and', 'or'). Flattened expressions is of the form or[x,y,z] which is originally represented as "or[x, or[y, z]]".

getCalciteFn

public static org.apache.calcite.sql.SqlOperator getCalciteFn(String hiveUdfName,
                                              com.google.common.collect.ImmutableList<org.apache.calcite.rel.type.RelDataType> calciteArgTypes,
                                              org.apache.calcite.rel.type.RelDataType calciteRetType,
                                              boolean deterministic)
                                                       throws CalciteSemanticException

Throws:

CalciteSemanticException

getCalciteAggFn

public static org.apache.calcite.sql.SqlAggFunction getCalciteAggFn(String hiveUdfName,
                                                    com.google.common.collect.ImmutableList<org.apache.calcite.rel.type.RelDataType> calciteArgTypes,
                                                    org.apache.calcite.rel.type.RelDataType calciteRetType)