Package com.amazonaws.athena.connectors.db2

Class Db2QueryStringBuilder

java.lang.Object

com.amazonaws.athena.connectors.jdbc.manager.JdbcSplitQueryBuilder

com.amazonaws.athena.connectors.db2.Db2QueryStringBuilder

public class Db2QueryStringBuilder
extends JdbcSplitQueryBuilder

Field Summary

Fields inherited from class com.amazonaws.athena.connectors.jdbc.manager.JdbcSplitQueryBuilder

emptyString

Constructor Summary

Constructors

Constructor	Description
Db2QueryStringBuilder(String quoteCharacters, FederationExpressionParser federationExpressionParser)

Method Summary

Modifier and Type	Method	Description
protected String	getFromClauseWithSplit(String catalog, String schema, String table, Split split)	Formatting SQL query statement.
protected List<String>	getPartitionWhereClauses(Split split)	Creates partition framing clause by taking information from split property.
protected org.apache.calcite.sql.SqlDialect	getSqlDialect()
protected org.apache.calcite.sql.SqlDialect	getSqlDialect(boolean catalogCasingFilterUpperCase)	Returns the SQL dialect to use for query generation with catalog casing filter support.

Methods inherited from class com.amazonaws.athena.connectors.jdbc.manager.JdbcSplitQueryBuilder

addPartitionWhereClauses, appendLimitOffset, appendLimitOffset, appendLimitOffsetWithValue, buildSql, buildSQLStringLiteral, extractOrderByClause, prepareStatementWithCalciteSql, prepareStatementWithSql, quote, toPredicate

Methods inherited from class java.lang.Object

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

Constructor Detail

Db2QueryStringBuilder

public Db2QueryStringBuilder(String quoteCharacters,
                             FederationExpressionParser federationExpressionParser)

Method Detail

getFromClauseWithSplit

protected String getFromClauseWithSplit(String catalog,
                                        String schema,
                                        String table,
                                        Split split)

Formatting SQL query statement. Adding period (.) after catalog and schema name and FROM before table name.

Specified by:

getFromClauseWithSplit in class JdbcSplitQueryBuilder

Parameters:

catalog -

schema -

table -

split -

Returns:

getPartitionWhereClauses

protected List<String> getPartitionWhereClauses(Split split)

Creates partition framing clause by taking information from split property.

Specified by:

getPartitionWhereClauses in class JdbcSplitQueryBuilder

Parameters:

split -

Returns:

getSqlDialect

protected org.apache.calcite.sql.SqlDialect getSqlDialect()

Overrides:

getSqlDialect in class JdbcSplitQueryBuilder

getSqlDialect

protected org.apache.calcite.sql.SqlDialect getSqlDialect(boolean catalogCasingFilterUpperCase)

Description copied from class: JdbcSplitQueryBuilder

Returns the SQL dialect to use for query generation with catalog casing filter support. Subclasses should override to return a database-specific dialect.

Overrides:

getSqlDialect in class JdbcSplitQueryBuilder

Parameters:

catalogCasingFilterUpperCase - whether to apply catalog casing to quoted identifiers

Returns:

the SqlDialect instance