SqlAbstractConformance (Calcite Core 1.16.0 API)

java.lang.Object
- org.apache.calcite.sql.validate.SqlAbstractConformance

All Implemented Interfaces:

SqlConformance

Direct Known Subclasses:

SqlDelegatingConformance
```
public abstract class SqlAbstractConformance
extends Object
implements SqlConformance
```
Abstract base class for implementing SqlConformance.
Every method in SqlConformance is implemented, and behaves the same as in SqlConformanceEnum.DEFAULT.

Field Summary
- Fields inherited from interface org.apache.calcite.sql.validate.SqlConformance
  DEFAULT, ORACLE_10, PRAGMATIC_2003, PRAGMATIC_99, STRICT_2003, STRICT_92, STRICT_99

Constructor Summary

Constructors
Constructor and Description

SqlAbstractConformance()

Constructors
Constructor and Description
`SqlAbstractConformance()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`allowExtend()` Whether to allow mixing table columns with extended columns in `INSERT` (or `UPSERT`).
`boolean`	`allowGeometry()` Whether to allow geo-spatial extensions, including the GEOMETRY type.
`boolean`	`allowNiladicParentheses()` Whether to allow parentheses to be specified in calls to niladic functions and procedures (that is, functions and procedures with no parameters).
`boolean`	`isApplyAllowed()` Whether `CROSS APPLY` and `OUTER APPLY` operators are allowed in the parser.
`boolean`	`isBangEqualAllowed()` Whether the bang-equal token != is allowed as an alternative to <> in the parser.
`boolean`	`isFromRequired()` Whether `FROM` clause is required in a `SELECT` statement.
`boolean`	`isGroupByAlias()` Whether to allow aliases from the `SELECT` clause to be used as column names in the `GROUP BY` clause.
`boolean`	`isGroupByOrdinal()` Whether `GROUP BY 2` is interpreted to mean 'group by the 2nd column in the select list'.
`boolean`	`isHavingAlias()` Whether to allow aliases from the `SELECT` clause to be used as column names in the `HAVING` clause.
`boolean`	`isInsertSubsetColumnsAllowed()` Whether to allow `INSERT` (or `UPSERT`) with no column list but fewer values than the target table.
`boolean`	`isLimitStartCountAllowed()` Whether to allow the SQL syntax "`LIMIT start, count`".
`boolean`	`isMinusAllowed()` Whether `MINUS` is allowed as an alternative to `EXCEPT` in the parser.
`boolean`	`isPercentRemainderAllowed()` Whether the "%" operator is allowed by the parser as an alternative to the `mod` function.
`boolean`	`isSortByAlias()` Whether '`ORDER BY x`' is interpreted to mean 'sort by the select list item whose alias is x' even if there is a column called x.
`boolean`	`isSortByAliasObscures()` Whether "empno" is invalid in "select empno as x from emp order by empno" because the alias "x" obscures it.
`boolean`	`isSortByOrdinal()` Whether '`ORDER BY 2`' is interpreted to mean 'sort by the 2nd column in the select list'.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SqlAbstractConformance
```
public SqlAbstractConformance()
```
- Method Detail
  - isGroupByAlias
```
public boolean isGroupByAlias()
```
    Description copied from interface: SqlConformance
    
    Whether to allow aliases from the SELECT clause to be used as column names in the GROUP BY clause.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5; false otherwise.
    
    Specified by:
    
    isGroupByAlias in interface SqlConformance
  - isGroupByOrdinal
```
public boolean isGroupByOrdinal()
```
    Description copied from interface: SqlConformance
    
    Whether GROUP BY 2 is interpreted to mean 'group by the 2nd column in the select list'.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5; false otherwise.
    
    Specified by:
    
    isGroupByOrdinal in interface SqlConformance
  - isHavingAlias
```
public boolean isHavingAlias()
```
    Description copied from interface: SqlConformance
    
    Whether to allow aliases from the SELECT clause to be used as column names in the HAVING clause.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5; false otherwise.
    
    Specified by:
    
    isHavingAlias in interface SqlConformance
  - isSortByOrdinal
```
public boolean isSortByOrdinal()
```
    Description copied from interface: SqlConformance
    
    Whether 'ORDER BY 2' is interpreted to mean 'sort by the 2nd column in the select list'.
    Among the built-in conformance levels, true in SqlConformanceEnum.DEFAULT, SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5, SqlConformanceEnum.ORACLE_10, SqlConformanceEnum.ORACLE_12, SqlConformanceEnum.STRICT_92, SqlConformanceEnum.PRAGMATIC_99, SqlConformanceEnum.PRAGMATIC_2003; SqlConformanceEnum.SQL_SERVER_2008; false otherwise.
    
    Specified by:
    
    isSortByOrdinal in interface SqlConformance
  - isSortByAlias
```
public boolean isSortByAlias()
```
    Description copied from interface: SqlConformance
    
    Whether 'ORDER BY x' is interpreted to mean 'sort by the select list item whose alias is x' even if there is a column called x.
    Among the built-in conformance levels, true in SqlConformanceEnum.DEFAULT, SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5, SqlConformanceEnum.ORACLE_10, SqlConformanceEnum.ORACLE_12, SqlConformanceEnum.STRICT_92; SqlConformanceEnum.SQL_SERVER_2008; false otherwise.
    
    Specified by:
    
    isSortByAlias in interface SqlConformance
  - isSortByAliasObscures
```
public boolean isSortByAliasObscures()
```
    Description copied from interface: SqlConformance
    
    Whether "empno" is invalid in "select empno as x from emp order by empno" because the alias "x" obscures it.
    Among the built-in conformance levels, true in SqlConformanceEnum.STRICT_92; false otherwise.
    
    Specified by:
    
    isSortByAliasObscures in interface SqlConformance
  - isFromRequired
```
public boolean isFromRequired()
```
    Description copied from interface: SqlConformance
    
    Whether FROM clause is required in a SELECT statement.
    Among the built-in conformance levels, true in SqlConformanceEnum.ORACLE_10, SqlConformanceEnum.ORACLE_12, SqlConformanceEnum.STRICT_92, SqlConformanceEnum.STRICT_99, SqlConformanceEnum.STRICT_2003; false otherwise.
    
    Specified by:
    
    isFromRequired in interface SqlConformance
  - isBangEqualAllowed
```
public boolean isBangEqualAllowed()
```
    Description copied from interface: SqlConformance
    
    Whether the bang-equal token != is allowed as an alternative to <> in the parser.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5, SqlConformanceEnum.ORACLE_10; SqlConformanceEnum.ORACLE_12; false otherwise.
    
    Specified by:
    
    isBangEqualAllowed in interface SqlConformance
  - isMinusAllowed
```
public boolean isMinusAllowed()
```
    Description copied from interface: SqlConformance
    
    Whether MINUS is allowed as an alternative to EXCEPT in the parser.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.ORACLE_10; SqlConformanceEnum.ORACLE_12; false otherwise.
    Note: MySQL does not support MINUS or EXCEPT (as of version 5.5).
    
    Specified by:
    
    isMinusAllowed in interface SqlConformance
  - isApplyAllowed
```
public boolean isApplyAllowed()
```
    Description copied from interface: SqlConformance
    Whether CROSS APPLY and OUTER APPLY operators are allowed in the parser.
    APPLY invokes a table-valued function for each row returned by a table expression. It is syntactic sugar:
    - SELECT * FROM emp CROSS APPLY TABLE(promote(empno)
      is equivalent to
      SELECT * FROM emp CROSS JOIN LATERAL TABLE(promote(empno)
    - SELECT * FROM emp OUTER APPLY TABLE(promote(empno)
      is equivalent to
      SELECT * FROM emp LEFT JOIN LATERAL TABLE(promote(empno) ON true
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.SQL_SERVER_2008; SqlConformanceEnum.ORACLE_12; false otherwise.
    Specified by:
    
    isApplyAllowed in interface SqlConformance
  - isInsertSubsetColumnsAllowed
```
public boolean isInsertSubsetColumnsAllowed()
```
    Description copied from interface: SqlConformance
    
    Whether to allow INSERT (or UPSERT) with no column list but fewer values than the target table.
    The N values provided are assumed to match the first N columns of the table, and for each of the remaining columns, the default value of the column is used. It is an error if any of these columns has no default value.
    The default value of a column is specified by the DEFAULT clause in the CREATE TABLE statement, or is NULL if the column is not declared NOT NULL.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.PRAGMATIC_99, SqlConformanceEnum.PRAGMATIC_2003; false otherwise.
    
    Specified by:
    
    isInsertSubsetColumnsAllowed in interface SqlConformance
  - allowNiladicParentheses
```
public boolean allowNiladicParentheses()
```
    Description copied from interface: SqlConformance
    
    Whether to allow parentheses to be specified in calls to niladic functions and procedures (that is, functions and procedures with no parameters).
    For example, CURRENT_DATE is a niladic system function. In standard SQL it must be invoked without parentheses:
    VALUES CURRENT_DATE
    
    If allowNiladicParentheses, the following syntax is also valid:
    VALUES CURRENT_DATE()
    
    Of the popular databases, MySQL, Apache Phoenix and VoltDB allow this behavior; Apache Hive, HSQLDB, IBM DB2, Microsoft SQL Server, Oracle, PostgreSQL do not.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5; false otherwise.
    
    Specified by:
    
    allowNiladicParentheses in interface SqlConformance
  - allowExtend
```
public boolean allowExtend()
```
    Description copied from interface: SqlConformance
    
    Whether to allow mixing table columns with extended columns in INSERT (or UPSERT).
    For example, suppose that the declaration of table T has columns A and B, and you want to insert data of column C INTEGER not present in the table declaration as an extended column. You can specify the columns in an INSERT statement as follows:
    INSERT INTO T (A, B, C INTEGER) VALUES (1, 2, 3)
    
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT; false otherwise.
    
    Specified by:
    
    allowExtend in interface SqlConformance
  - isLimitStartCountAllowed
```
public boolean isLimitStartCountAllowed()
```
    Description copied from interface: SqlConformance
    
    Whether to allow the SQL syntax "LIMIT start, count".
    The equivalent syntax in standard SQL is "OFFSET start ROW FETCH FIRST count ROWS ONLY", and in PostgreSQL "LIMIT count OFFSET start".
    MySQL and CUBRID allow this behavior.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5; false otherwise.
    
    Specified by:
    
    isLimitStartCountAllowed in interface SqlConformance
  - isPercentRemainderAllowed
```
public boolean isPercentRemainderAllowed()
```
    Description copied from interface: SqlConformance
    
    Whether the "%" operator is allowed by the parser as an alternative to the mod function.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5; false otherwise.
    
    Specified by:
    
    isPercentRemainderAllowed in interface SqlConformance
  - allowGeometry
```
public boolean allowGeometry()
```
    Description copied from interface: SqlConformance
    
    Whether to allow geo-spatial extensions, including the GEOMETRY type.
    Among the built-in conformance levels, true in SqlConformanceEnum.LENIENT, SqlConformanceEnum.MYSQL_5, SqlConformanceEnum.SQL_SERVER_2008; false otherwise.
    
    Specified by:
    
    allowGeometry in interface SqlConformance

Class SqlAbstractConformance

Field Summary

Fields inherited from interface org.apache.calcite.sql.validate.SqlConformance

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

SqlAbstractConformance

Method Detail

isGroupByAlias

isGroupByOrdinal

isHavingAlias

isSortByOrdinal

isSortByAlias

isSortByAliasObscures

isFromRequired

isBangEqualAllowed

isMinusAllowed

isApplyAllowed

isInsertSubsetColumnsAllowed

allowNiladicParentheses

allowExtend

isLimitStartCountAllowed

isPercentRemainderAllowed

allowGeometry