org.apache.hadoop.hive.ql.optimizer.optiq.translator
Class SqlFunctionConverter

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.optiq.translator.SqlFunctionConverter

public class SqlFunctionConverter
extends Object

Constructor Summary

SqlFunctionConverter()

Method Summary

static ASTNode	buildAST(org.eigenbase.sql.SqlOperator op, List<ASTNode> children)
static ASTNode	buildAST(org.eigenbase.sql.SqlOperator op, List<ASTNode> children, int i) Build AST for flattened Associative expressions ('and', 'or').
static org.eigenbase.sql.SqlOperator	getOptiqOperator(GenericUDF hiveUDF)

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlFunctionConverter

public SqlFunctionConverter()

Method Detail

getOptiqOperator

public static org.eigenbase.sql.SqlOperator getOptiqOperator(GenericUDF hiveUDF)

buildAST

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

buildAST

public static ASTNode buildAST(org.eigenbase.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]]".