org.apache.spark.sql.jdbc

Class H2Dialect.H2SQLBuilder

Object

org.apache.spark.sql.connector.util.V2ExpressionSQLBuilder

org.apache.spark.sql.jdbc.H2Dialect.H2SQLBuilder

Enclosing class:

H2Dialect

public static class H2Dialect.H2SQLBuilder
extends V2ExpressionSQLBuilder

Constructor Summary

Constructors

Constructor and Description
H2SQLBuilder()

Method Summary

Modifier and Type	Method and Description
String	escapeSpecialCharsForLikePattern(String str) Escape the special chars for like pattern.
String	visitAggregateFunction(String funcName, boolean isDistinct, String[] inputs)
String	visitCast(String l, DataType dataType)
String	visitExtract(String field, String source)
String	visitLiteral(Literal<?> literal)
String	visitNamedReference(NamedReference namedRef)
String	visitOverlay(String[] inputs)
String	visitSQLFunction(String funcName, String[] inputs)
String	visitTrim(String direction, String[] inputs)

Methods inherited from class org.apache.spark.sql.connector.util.V2ExpressionSQLBuilder

build

Methods inherited from class Object

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

Constructor Detail

H2SQLBuilder

public H2SQLBuilder()

Method Detail

escapeSpecialCharsForLikePattern

public String escapeSpecialCharsForLikePattern(String str)

Description copied from class: V2ExpressionSQLBuilder

Escape the special chars for like pattern. Note: This method adopts the escape representation within Spark and is not bound to any JDBC dialect. JDBC dialect should overwrite this API if the underlying database have more special chars other than _ and %.

visitAggregateFunction

public String visitAggregateFunction(String funcName,
                                     boolean isDistinct,
                                     String[] inputs)

visitExtract

public String visitExtract(String field,
                           String source)

visitSQLFunction

public String visitSQLFunction(String funcName,
                               String[] inputs)

visitCast

public String visitCast(String l,
                        DataType dataType)

visitLiteral

public String visitLiteral(Literal<?> literal)

visitNamedReference

public String visitNamedReference(NamedReference namedRef)

visitOverlay

public String visitOverlay(String[] inputs)

visitTrim

public String visitTrim(String direction,
                        String[] inputs)