org.apache.spark.sql.errors

Interface QueryErrorsBase

All Superinterfaces:

DataTypeErrorsBase

public interface QueryErrorsBase
extends DataTypeErrorsBase

The trait exposes util methods for preparing error messages such as quoting of error elements. All classes that extent QueryErrorsBase shall follow the rules: 1. Any values shall be outputted in the SQL standard style by usi ng toSQLValue(). For example: 'a string value', 1, NULL. 2. SQL types shall be double quoted and outputted in the upper case using toSQLType(). For example: "INT", "DECIMAL(10,0)". 3. Elements of identifiers shall be wrapped by backticks by using toSQLId(). For example: namespaceA.funcB, tableC. 4. SQL statements shall be in the upper case prepared by using toSQLStmt. For example: DESC PARTITION, DROP TEMPORARY FUNCTION. 5. SQL configs and datasource options shall be wrapped by double quotes by using toSQLConf()/toDSOption(). For example: "spark.sql.ansi.enabled". 6. Any values of datasource options or SQL configs shall be double quoted. For example: "true", "CORRECTED". 7. SQL expressions shall be wrapped by double quotes. For example: "earnings + 1".

Method Summary

Modifier and Type	Method and Description
String	toDSOption(String option)
String	toSQLConfVal(String conf)
String	toSQLExpr(org.apache.spark.sql.catalyst.expressions.Expression e)
String	toSQLSchema(String schema)
String	toSQLValue(Object v, DataType t)

Methods inherited from interface org.apache.spark.sql.errors.DataTypeErrorsBase

getQueryContext, getSummary, quoteByDefault, toSQLConf, toSQLId, toSQLId, toSQLStmt, toSQLType, toSQLType, toSQLValue, toSQLValue, toSQLValue, toSQLValue, toSQLValue, toSQLValue, toSQLValue

Method Detail

toDSOption

String toDSOption(String option)

toSQLConfVal

String toSQLConfVal(String conf)

toSQLExpr

String toSQLExpr(org.apache.spark.sql.catalyst.expressions.Expression e)

toSQLSchema

String toSQLSchema(String schema)

toSQLValue

String toSQLValue(Object v,
                  DataType t)